Panasonic KX-F900 Service Manual
  1. Manuals
  2. Brands
  3. Panasonic Manuals
  4. Fax Machine
  5. KX-F900
  6. Service manual
Panasonic KX-F900 Service Manual

Panasonic KX-F900 Service Manual

900mhz cordless fax
Hide thumbs Also See for KX-F900:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Supplemental Service Manual
OHUEH NO. KM[9610089C1
Service Manual
and Technical Guide
900MHz
CORDLESS
FAX
KX-F900
(for U.S.A.)
,_
WARNING
] his service inlormation
is designed for experienced
repair technicians only and _snot designed for use by the general public.
It does not contain warnings or cautions to advise non-technical
individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced
professional technicians.
Any attempt to service or repair the product or products dealt with in this service information
by anyone else could result in serious
injury or death.
Panasonic
I (_)1996 Kyushu Matsushita
Electric Co., Ltd.
All rights reserved. Unauthorized
copying and distribution is a violation of law.

Advertisement

Table of Contents
loading

Related Manuals for Panasonic KX-F900

Summary of Contents for Panasonic KX-F900

  • Page 1 Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death. Panasonic I (_)1996 Kyushu Matsushita All rights reserved. Unauthorized Electric Co., Ltd.

  • Page 2: Table Of Contents

    KX-F900 When you mention the serial number, write down the 11 digits. The serial number may be found on the bottom of the unit..TABLE OF CONTENTS Page INTRODUCTION SAFETY PRECAUTIONS ............................INSULATION RESISTANCE TEST ........................FOR SERVICE TECHNICIANS ..........................
  • Page 3 KX-F900 GIR£;UII OPI:RA]IONS CONNECTION DIAGRAM ..........................GENERAL BLOCK DIAGRAM ........................129, 130 CONTROL SECTION ..........................131~136 FACSIMILE SECTION ..........................137~145 MODEM SECTION ............................. 146-152 EXPLANATION OF ANALOG SECTION BLOCK DIAGRAM ..............153, 154 NCU SECTION ............................155, 156 ITS AND MONITOR SECTION ........................157, 158 TAM INTERFACE SECTION ........................
  • Page 4 KX-F900 INTRODUCTION Hay_ Safety Precautions ................Insulation Resistance Test ................ For Service Technicians ................Batten] Caution ..................AC Caution ....................Standard Battery Life ................Personal Safety Precautions ..............Specifications .................... Optional Accessories ................Location of Controls .................. Features ....................Connection ....................

  • Page 5: Safety Precautions

    KX-F900 SAFETY PRECAUTIONS 1. Before servicing, u_plugthe power cord to prevent an electric shock. 2. When replacing pads, use only the manufacturer's recommended components. 3. Check the condition of the power cord. Replace if wear or damage is evident. 4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, _hields, etc. 5.

  • Page 6: Battery Caution

    KX-F900 BATTERY CAUTION CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacture. Discard used batteries according to following caution: Disposal of lithium batteries should be performed by permitted, professional disposal firms knowledgeable in state govern- ment federal and local hazardous materials and hazardous waste transportation and disposal requirements.

  • Page 7: Standard Battery Life

    KX-F900 STANDARD BATTERY LIFE If your Panason_c battery is fully charged; While in use (,TALK) Up to about 4.5 hours While not in use (Stand-By) Up to about 14 days • Battery life may vary depending on usage conditions and ambient temperature. •...

  • Page 8: Specifications

    KX-F900 SPECIFICATIONS • Main unit 1. Applicable Lines: Public Switched Telephone Network This specifications is for 2. Document Size: Max. 216 mm (8 1/2") in width U.S.A. version only. Refer to the simplified manual Max. 600 mm (23 %') in length (cover) for other areas.

  • Page 9: Location Of Controls

    KX-F900 LOCAl ION OF CON]-ROLS Front view Antenna uattery charger Document entrance (beneath the cover) Spare battery cover Paper stacker Document feeder tray Document guide(s) Microphone CHARGE Indicator Front lid open button SPARE CHARGE Indicator Document exit Cont;rol panel Dial keypad HELP Display panel RESOLUTION...

  • Page 10: Features

    Handset An_ena INTERCOM indicator TALK/BAT1 (Battery) LOW indicator TALK TONE PROGRAM REDIAL/PAUSE _ FEATURES 900MHz Cordless General • Fax activation from handset • Automatic paper cutter • Intercom with 2-way paging • Answering machine interface • Lighted keypad • 64-Level halftones resolution •...

  • Page 11: Connection

    KX-F900 CONNEGIION Connect to "LINE". Dialing mode switch: DIALING MODE Set to TONE. • If you cannot dial, set to PULSE. TONE PULSE Telephone line cord Single telephone line (RJ11 C) Line-surge protector ) Power outlet (120 V, 60 Hz) Power surge_ protector Note:...

  • Page 12: Installation

    KX-F900 INSTALLATION 1. Installing the recording paper (_) Open the back lid by lifting up the tabs located on the both sides, (_) Install a recording paper roll in the main unit. • Make sure that the shiny side of the paper is facing down and there is no stack, tape, or glue residue on the paper roll.
  • Page 13 KX-F900 3. InslailirJg [ne _pa_u battery cover on the main unit Close the spare battery cover. Spare battery cover 4. Installing the battery in the handset Install the battery as shown observing the Battery proper polarity. Install the battery cover. Battery cover...

  • Page 14: Component Locations

    KX'FgO0 COMPONENT LOCATIONS Recording Paper Cover Separation Roller Motor Document .._rmal Head Feed Roller Recording Paper Roller Target Glass Document Feed Roller Cutter Mirr Transmission Motor Reception Motor LED Array MAINTENANCE ITEM 1. OUTLINE MAINTENANCE AND REPAIRS ARE PERFORMED USING THE FOLLOWING STEPS.
  • Page 15 2-1. MAINTENANCE LIST OPERATION CHECK ITEM REMARKS Document Path Remove any foreign matter such as scrap of paper. Rollers If a roller is dirty, clean it with a damp cloth, then let dry thoroughly. See page 16. Recording Paper If the platen is dirty, clean it with a damp cloth, then let dry thoroughly. See page121.

  • Page 16: Cleaning The Unit

    KX-Fg00 CLEANING THE UNIT Cleaning the inside of the unit If misfeeding occurs frequently, or dirty patterns or black bands appear on a copied or transmitted document, clean the document feeder rollers, sub roller, rubber flap, white plate and glass. Disconnect the power cord and the telephone line White plate cord.

  • Page 17: Troubleshooting Guide

    KX-F900 TROUBLESHOOTING GUIDE Page 1. Troubleshooting Summary ..............1-1. Troubleshooting ..............,,-I 1-2. Precautions ................2. User Recoverable Errors ............... 3. Detail of Troubleshooting ..............20~91 3-1. Outline ..................3-2. Starting up troubleshooting ........... 3-3. Table of troubleshooting items ..........3-4.

  • Page 18: Troubleshooting Summary

    KX-F900 1. TROUBLESHOOTING SUMMARY 1-1. TROUBLESHOOTING After having confirmed the abnormal condition by askingthe user, troubleshoot a ccording to th_ ,_L_U_;L_, ,._In Observe the following precautions when troubleshooting. 1-2. PRECAUTIONS 1) If there is trouble with the print quality or the paper feed, first check that the installation space and the print paper meets the specifications, that the paper selection lever/paper thickness lever is set correctly, and that the paper is set correctly without any looseness.

  • Page 19: User Receiverable Errors

    KX-F900 2. USER RECOVERABLE ERRORS If the unit detects a problem, the following messages will app_af in the display. DISPLAY MESSAGE CAUSE AND REMEDY • There is something wrong with the unit. :ICALL SERvIcE • The back lid is open. Close it. I CHECK COVER •...

  • Page 20: Detail Of Troubleshooting

    KX-F900 3. DETAIL OF TROUBLESHOOTING 3-1. OUTLINE Troubleshooting is to make quality and reliability recover by finding out the broken component and exchange or adjustment or cleaning. We have to find out symptoms and then arrange troubleshooting method. If it's tough to finding out just a broken component, we should so arrange that block or section are specified, for example "digital board"...

  • Page 21: Table Of Troubleshooting Items

    KX-F900 3-3. TABLE OF TROUBLESHOOTING ITEMS FUNCTION SYMPTOM SEE THIS PAGE Unit doesn't work at all No character or faint response in the LCD Skewed sending image Page 30 Expanded print Page 30 Image is distored Page 27 Printing Black or White lateral line on printing Page 28 "1- No feed...

  • Page 22: Easy-Check-List

    I..K x-egoo 3-4. EASY-CHECK-LIST FUNCTION JUDGEMENT REFERENCE OK / FAX operation transmission OK / receiving OK / Copy operation FINE mode HALF TONE mode OK / OK / Monitor sou nd OK / Telephone operation Ringer sound OK / Dial operation OK / Volume operation...
  • Page 23 KX-F900 3-5. ADF (Auto document feed) SECTION (1) No document feed In document setting, confirm that beep tone or not. Check the separation Check the sensor spring is distorting. sor lever. lever movement. eplace the sen- ,_ oK Check the sensor and digital board.
  • Page 24 KX-FgO0 (2) Paper JAM Checks the paper jam lu_ markings stuck on the sheet. up ubjeui.s Check feed route. Cleaning or replace of defective parts. ._ END Cleaning the each rollers. (pages 120 and 121 ) Check each sensors Confirms that the location tip of the read start movement.
  • Page 25 KX-F900 (3) Multiple feed Confirms whether the pad is dirty or not and Check separation pad. is attached correctly. Cleaning or replace the . END defective parts. Check the separation rEND spring is distorting. Cleaning the each rollers. ._ END (pages 120 and 121) I'll pad, roller and pressure...
  • Page 26 (3) Multiple feed Confirms whether the pad is dirty or not and is attached correctly. Check separation pad. • END _1 defective parts. Cleaning or replacethe spring is distorting. heckthe separation Cleaning the each rollers. I ,_ END (pages 120 and 121) Replace the separation pad, roller and pressure spring.
  • Page 27 KX-F900 (4) Skew Checks whether the document is folded or whether a different size document is set at Document setting OK? ape or staples are attached. Also checks the same time. Reset document. Checks whether there are same foreign Check feed route. objects, or missing parts.
  • Page 28 f..KX:-F'O0 ..(6) Black or white vertical lines appear. I Please copy the test chart. To thermal head section. (page 84) Please the white plate and target glass thoroughly. Cleaning feed route. If the dirt cannot be removed, change the white plate. -_ END Replace white plate, CCD unit etc.
  • Page 29 KX-F900 (7) (.;an noi cu[ the recording paper. Check the cutter unit. Cleaning the cutter unit. (page 121) Check the each sensor levers movement. Replace the defective parts. Check the each sensor. Replace the defective parts. Test the cutter movement. Check the connector, and arm.
  • Page 30 i ,x:Fooo I (8) Skewed sending image Check the setting of Reset the recording paper. recording paper Replace the recording paper roller. (9) Expanded print Lock the front lid open button locked. Check the front lid open button. (pages 120 and 121) leaning the each rollers, j 30--...
  • Page 31 KX-F900 (10) When copying u_ printing _,=,abi,u_=ilal sound IS heuld lroll= inu uldt. In the document convey -ance element. (Next page) In the printing section. I1'1 Confirm the EXIT-GUIDE Remove the exit-guide toward you by hand and conlim_ it the carriage is moved ¢) unit.
  • Page 32 KX-F900 Confirm the document's objects or abnormal instatlations. conveyance drive section. Check the drive gear for damage, inserted foreign Fix clean or change the abnormal part. Re-grease (Refer to page 206) Do not apply large amounts to other parts. Change the gear and gear chassis.

  • Page 33: Communication Section

    KX-F900 3-b. L;L)MMUNICATION SECTION Communication connection (modem) (Print defect in FAX communication) Hint Symptom General Classification Print a communication TEST : If only the print communication is NG and other Referring to the printer printing is OK, there is a high possibility that there is a problem in the digital board's modem and analog board buss.

  • Page 34: Adf Section

    KX-F900 (1) Defective facsimile section (_) Transmit problem USER STOPPED Message on LCD TX Problem STOP key was pressed? J NO • Need to service. No problem • Operation panel section. (Refer to page 76) Paper jam? I YES 1"° ADF section.
  • Page 35 KX-F900 ] ransmit Error _ Message on LCD TX Problem Pre-Feeding of docu- ment? Using auto dial to send? Doesn't start TX (Doesn't start feeding?) r"- • Increase "596:Transmit Do you press START key level set" from -10 dBm immediately after dialing? to -5 dBm or some.
  • Page 36 I..Kx_,.oo- (2) Receive problem Confirm below before starting troubleshooting. • Recording paper is installed properly? RX problem Can RX something anyway? Many errors on image? t YES J No: Looks OK Change"718:Receive speed Increase "595: RX error limit select" to 7200, 4800 or 2400 value"...
  • Page 37 KX-F900 C_ Unit can copy, but can not transmiUreceive Connect the unit to the loop simulator. Switch : TX side T-R : Connect oscilloscope Modem test start (TEST CODE NO. 554) Is the four signal at ___connect the PBX and Tip-Ring output? EL.
  • Page 38 KX-F900 @ Unit can copy, but can not transmit/receive long distance or international communication The following 2 causes can be considered for this. Cause 1: The other party is executing automatic calling, the call has been received by this unit, and this time until response with a CED or DIS signal has been too long.
  • Page 39 KX-F900 (Cause and Countermeasure) (Cause A) When the training signal is transmitted from FAX1 during the communication procedure at the time of transmission from FAX1 to FAX2, there is a delay until the echo canceler operates and $1 is closed, so that a part of the head of the training signal may drop out, normal reception by FAX2 may not be possible, and transmission may not be started.
  • Page 40 KX-F900 Summary: Long distance and international communication operatio_ COUNTERMEASURE SYMPTOM 1. The TEL/FAX DELAYED RING count should be 1. (user parameter: code No. 06) 2. If possible, manual transmission should be made from Does not receive in automatic mode. the transmission side. 3.
  • Page 41 KX-F900 ..(2) Communication error functions (_ Operation: 1. Press the MENU button 3 times. 2. Press the START/SET button and v button 4 times. 3. Press the START/SET button. 4. Print out. (_ Error code table: CODE RESULT MODE SYMPTOM Counter- measure...
  • Page 42 KX-F900 (_ Countermeasure Transmission is finished when T1 TIMER is expired. Turn ON the FAX monitor func- tion and transmit the data to the same receiver. ¸ Confirm the receiver's FAX machine Confirm service parameter and compatibility of both caller's and chine is set to the reception mode or was set to the reception mode when onfirm if the receiver's FAX ma-...
  • Page 43 KX-F900 FT-i is received after transmission of 2400BPS training signal. Perform communication test us- ing the LOOP simulator. I'll (1) Raise the level of transmission. (Do not Modem test raise the level above the standard of each (TEST CODE NO.554) country.
  • Page 44 No response after post message is transmitted three times. 'Inquire the receiver if the caller's document is facsimiled correctly. Ask the service section of the receiver's FAX machine to con- firm the machine condition. RTN and PIN are received. No response after FTT is transmitted. Perform communication test us- ing the LOOP simulator and...
  • Page 45 KX-F900 No post message Turn ON the FAX monitor func- tion and have the receiver trans- mit the data. Ask the service section of the I"" sender's FAX machine for ex- amination. "I- (Receive Complete) Try again. Decrease the RX speed. RTN is transmitted.
  • Page 46 I Kx-F'O0 I Reception is finished when T1 TIME is expired. Perform communication test us- ing the LOOP simulator and check the machine reception condition. Modem test (TEST CODE NO.554) Turn ON the FAX monitor func- tion and have the receiver in question transmit the data again.
  • Page 47 KX-F900 DCN is received after transmission of NSC and DTC. Confirm if a mechanical trouble occurred, e.g. transmission was interrupted or document was out of place, on the receiver side (being polled). Ask the receiver to set the poll Ask the service section ofihe mode again and perform polling.
  • Page 48 DCN is received after FTT transmission. No response at the other party after MCF or CFR is transmitted. DCN is received after CFR transmission. Confirm if a mechanical trouble occurred, e.g. the caller inter- rupted the transmission. Ask the caller to transmit the data again.
  • Page 49 I ..Kx-_90o ..Polling is not possible. Confirm if a mechanical trouble occurred, e.g. transmission interrupted or document was out of place, on the receiver side (being polled). IXII I'" ill I .-,,, ____ • Ask the receiver to set the Poll Ask the service section of the mode again and perform polling.
  • Page 50 KX-F900 (3) Remote programming While a user is talking on the phone, a technician call set the function parameters of customer's unit from service center. 1. A call comes in service center. 2. A technician gets a claim from a customer. 3.
  • Page 51 KX-F900 1_ Summary of remote programming mode Customer press STOP sTART key and press the SP-PHONE button. Enter the REMOTE PROGRAMMING ID 9,0,0,0 * REMOTE PROGRAMMING MODE "Piiii" "1" Press 3 digits code of service Pii Pii" ress mistaken key "Pii function and then press -_ (set) SERVICE SETTING MODE "Piiii"...
  • Page 52 KX'FgO0 C_)Program mode table Set Value Default Remote setting Function mm/dd/yy hh:mm Set date and time Your Io.qo Your telephone number 1:ERROR/2:ON/3:OFF ERROR Print transmission report 1:FAX 2:EXT TAM Auto receive mode 1 to 4 rings 1 ring FAX ring count 1:TEL, 2:TEL/FAX Manual receive mode 1 to 4 rings...
  • Page 53 KX-F900 ..Function ..Set Value Default Remote setting FAX auto redial time set 00-99 FAX auto redial line disconnection time set 001-999 ONG transmit select 1:OFF/2:ALL/3:AUTO 1:75/2:500/3:1 s 75ms Time between CED and 300 bps Overseas DIS detection select 1:1 stJ2:2nd Receive error limit value set 001-999...

  • Page 54: Digital Board Section

    KX-F900 3-7. DIGITAL BOARD SECTION • How to fix the digital board that don't start up the unit. (1) OVER VIEW If you see a human being down on the street, what will you do? You may talk to him. But if he doesn't answer, you check his breath or pulse, don't you. Why do we check them? Breath or pulse, we needs must do it to live.
  • Page 55 [- ..KX-FgO0 -] (2) CHECK LCD ON THE MACHINE If the digital board had broken, machine does not react at all and black square will be on the LCD. There are 5 processes to display some letters (12:00 AM) on LCD. If processes were not complete, black square will be on the LCD.
  • Page 56 I x, ,0o1 (3) PROCEDURE FROM OUR EXPERIENCE TO FIX Power ON plug the AC cord •-_ Check ,,-- No reaction power line (Refer to page 58) Black squares or any charactor come. No reaction means that Power line is broken (short-circuit).
  • Page 57 KX-F900 Pleas check the status (voltage) of pin 56, pin 58 and pin 60 of IC1. These status may tell you defective point. (Please use the ROM for IC status checked) [Ref No. EC22] Oscilloscope TESTER DDDDD [] m "1- status (voltage) of check points This could be Please check here!
  • Page 58 KX-F900 (1) CHECKING DETAIL Please check the soldering first, it comes from our experience. Checking soldering Big ICs and resistor arry Visual check soldering. RA1, RA2 RA3, RA4 ICll Checking soldering CPUCLK SYS. CLK (pin 96 of ICl) 12 MHz? XTEST Check wave form on the ICs and BUS line.
  • Page 59 KX-F900 (3) OSCILLATOR (CLK) SYSTEM CLK: 24 MHz, MODEM CLK: 24 MHz 24 MHz SYSTEM CLK (pin 96 of ASIC:IC1) 50 nsec/div • This point is 1/2the MHz of the SYSTEM CLK 12MHz. 24 MHz MODEM CLK (pin 70 of MODEM:IC11) 50 nsec/div I"...
  • Page 60 KX-F900 (5) CHECK WAVE FORM This check needs 4 channels digital storage oscilloscope higher than 400 MHz. START If still no reaction replace oscillation (12 MHz), ASlC and check again. heck again power line, RESET? JYES Address to SRAM or MODEM may unsuceedo (Refer to pages 63-65) __ o0a0e6...
  • Page 61 KX-F900 Let's observe the wave form to fix the defective IC. name location pin 132 of ASlC (IC1) Please observe A0, DO, ROMCE, RD by using digital oscilloscope. pin 131 of ASlC (IC1) Below graph show you the wave form that is observed when unit ROMCE pin 22 of ROM (IC2) (.board) is working correctly.
  • Page 62 [..Kx-Fgoo ..] The graphs below show you the wave form that is observed when unit (board) doesn't work. (A3 is intentionally opened at pin 135 of ASIC in this board.) Please check that active (low level) term of ROMCE is longer than good wave form, **ROMCE is active (low level) except- ing RESET is active.** and RESET is frequently coming on every 4 msec.
  • Page 63 KX-F900 Please observe A0, DO, ROMCE, MDMCS. Below graph show you the wave form that is observed when ullit (board) is wuiking _,uJtuutiy. _oth graph are good wave. Time/div i'Trigger _'CH1/2 z_MEM1AMEM2 5V/div li_l'l_.-] H1 W1 5V/div 5V/div 10.0V F- ..5V/div 51xs/div Length...
  • Page 64 KX-Fg00 The graphs below show you the wave form that is observed when MODEM doesn't work. (Oscillation is not intentionally supplied to MDM.) Please compare OK form to NG form. MDMCS (pin 54 of ICl 1) signal is coming many times more than good wave form. In the case of this wave form MODEM doesn't work.
  • Page 65 KX-F900 Below graph show you the wave form that is observed when SRAM doesn't work. (BUS line at SRAM is intentionally opened.) Please compare OK (under) to NG (upper). SRAMCS (pin 20 of IC3) signal is coming like clock. In the case of this wave form SRAM access doesn't work. If soldering, conductance is no problem, we need to replace SRAM (IO3).
  • Page 66 KX-F900 (6) CHECK SOLDERING We should check soldering at first. Because many problem are caused by a defective soldering. I How to Visual-Check the soldering I Defective soldering (shorted, un-welded, oxidized...) doesn't have a good looking outward. In order words outward (gloss, brightness, form) is important for soldering. So we should do visual inspection.
  • Page 67 KX-F900 COLD (nu-welded) SOLDERING CHIP PARTS (section) SMT PARTS cold soldering cold soldering I'll LEADED PARTS RESISTOR ARRY (section) I'tl cold soldering cold soldering SHORTED SOLDERING SMT PARTS shorted LEADED PARTS CHIP PARTS I} (secti°n) shorted -67-...
  • Page 68 ..I 3-8. ANALOG BOARD SECTION Returns from the custorner has 2 of the defects. For example complaint X HANDSET transmitting X SP-PHONE transmitting How can you repair this unit? We usually check the signal flow with the circuit schematic. (If defect is only one item, we check only one of the signal routes.
  • Page 69 KX-F900 signal ROUTE (SYMPTOM) I_ OUT ITEMS TO CHECK SP-PHONE Tx _ MIC-J270-C 138-1C109(13-27)-R145-1C 151 (75-63)-C203-R210-1C201 (2-1)-C202- R201 -T101 - TEL LINE [SP-PHONE TEL LINE-T101 -R202-C205-1C201 (6-7)-C210-C173-R172-R 173-C174-1C 151 (59-71)-C142-R 143- IC109 (22-30)-C145-1C109 (4-7)-R146-C146-1C151 (40-38)-R245-C245-1C241 (4-5,8)-SPEAKER -.,I _RTABLE HANOSET MIC_R283_C214_Q208_C233_R232_IC202(19_17)_C232_R231_IC202(16_13)_R230_ I Portable Handset Tx R228-R227-1C202(11-10)-C225-R229-VR201 -R458-R410-TX...
  • Page 70 KX-F900 (1) Defective ITS (Integrated telephone system) section €_) No speakerphone transmission/reception Following the ITS section or NCU section, search for the route between the microphone and the telephone line (sending) or between the telephone line and the speaker (receiving) where the signal disappears. Check the components at that point.
  • Page 71 KX-F900 (2) Defective TAM interface section (!) Not arriving in TAM, FAX turn on. _sthe installed bell ring num- -,nstal, a be;, ringnumber oi ber of TAM less than that of KX-F900? TAM less than that of KX-F900. I YES Check the EXT.

  • Page 72: Power Supply Section

    KX-F900 3-9. POWER SUPPLY SECTION (1) Key components for troubleshooting The following components have been known to break frequently : F101, D101, Q101, IC101, D201, D202 This comes from our experience of experimental test. For example : power supply, lighting surge voltage test, withstanding voltage test, intentional short circuit test ..
  • Page 73 KX-F900 (2) Troubleshooting flow chart Our recommendation for troubleshooting is as follows. This procedure comes from our experience of troubleshooting in our lab. •_ Before turning on the power supply, you should check F101. !" DI I. • (Next Page)
  • Page 74 k _x:_,oo _v check 1 (DC-DC converter check) 5V,check Ill. 5V,check Replace D203. (DC-DC converter check) Replace D201. Replace IC202. I _v,che_ (DC-DC converter check) ReplaceD204. Replace D202,PC101 and IC201. 5V,check Replace peripheral circuit of IC202 (DC-DC converter check) ---_ Replace the whole board. (It is difficult to fix by testing other parts.) -74-...
  • Page 75 [- --KX-Fg00 ..J (3) The broken parts repairing details (D101) Check short-circuit of terminal 4. It D101 is short-circuited, F101 will be melted (open). So in this case, replace the 60th parts (D101, F101). (Q101) The worst case of Q101 is a short-circuit between the Drain and Gate because damage expands to IC101.

  • Page 76: Operation Board Section

    I KX:F,00 1 3-10. OPERATION BOARD SECTION (1) No key operation Repair the keys. Is the Key always pressed? t YES Check disconnection of CN5 Check IC301 (operation board) (digital board) or CN301 (operation board). (2) No LCD indication Is the disconnection of the Repair.

  • Page 77: Sensor Section

    Kx-Fgoo [..3-11. SENSOR SECTION (1) Check the read position sensor(PI301) Check the voltage at pin 15 of IC301 N__2%,. Check the soldering Check the soldering at R333. at R331. Document set OV -L--When the pin No document 4-5V !-_ 16 of IC301 is low level.
  • Page 78 KX-Fg00 1 (4) Check the recording paper sensor (SW273) Check the voltage at pin 6 of IC151 Check the soldering at R275. _ Check the soldering at R276. I Present recording paper: 0V Out of recording paper: 4-5V Replace SW273. Replace IC151.

  • Page 79: Read Section

    KX-F900 3-12. READ SECTION )'s t he 0'ass c,ean? sur'ace o, rea,,,r,0sect,on C,ear, the su,,ace o, the0,ass. Perform the scanner test. -.,I Copy a document. _°_ "1" LED lamp of the read section light? (Service code : 555) Check the connection between CN7 and LED lamp.
  • Page 80 KX-F900 4~5 Vp-p? Is the amplitude at pins 2~5 of CN6 check the amplitude at pins 2~5 Take out cable from CN6, and of CN6 (4~5 Vp-p). Is the voltage at pin 1 of CN6 +5 V? Check CCD board. (Refer to page 81) section.
  • Page 81 KX-F900 [-Pe"0;m the scanner test. (Refertopage 97_) 'I I Is the amplitude at pins 2~5 of CN801 (CCD board ) 4~5 Vp-p? Take out CN801 (CCD board), and check the amplitude at pins 2~5 of CN6 (Digital board). (4~5 Vp-p). r"...
  • Page 82 waveform of read section ® CCD 1.0 Vlmp a! about CH1 GND CH2 GND -- Oscilloscope setting V: CH1 0.5 V/div 5 V/div DC couple, CHOP mode H: 1 msec / div Trigger: CH2 SLOPE (+) Probe point: GND Test point "AG" CH1 Test point "VID"...
  • Page 83 KX-F900 about U.b V/div 0.6Vp.p AC couple 0.5 V/div 1.0Vp-p AC couple I about about 1.5V 1 V/div 1.5V DC couple CH1 probe point (_-1 IC801 pin 1 (CCD Board) (_)-2 0N801 pin 7 (CCD Board) ® IC1 pin 39 (AMON) (Digital board)

  • Page 84: Thermal Head Section

    I..KxFgo0-I 3-13. THERMAL HEAD SECTION Is the voltage at pin 8 of CN251. (Analog Board) 0-1 V? (When copying) of IC1 4-5 V? (Digital Is the voltage at pins s the voltage at pin 119 Board) 5,6 of CN301 23~24 V? (Power unit ) Check switching power Checkthe solder at pin...

  • Page 85: Cordless Section

    KX-F900 3-14. CORDLESS SECTION (1) Battery won't charge (Cordless Base unit) Plug in the AC power source. Is the charge LED lit? Isi-_ v(_tage-oi Q505]NO[ Check{he ..I collector about charge circuit _YES I 5.6 V? (Refer to page 172) IYES I Is the voltage between(_and012 V? I...
  • Page 86 I Kx:F,oo ..I (3) No voice reception Does the modulation factor become 6.4 kHz ....... -_YES Devi. when -27 dBm is ..Is there an output input to the base unit? waveform at pin 5 of it, VR202 IC202 (Portable handset)? d IC202.
  • Page 87 KX-F900 (5) No link (_) How to check whether the portable handset or the cordless base unit LINK FAILURE Charge another OK portable handset PORTABLE HANDSET NG in cordless base unit; link OK? (Set the test mode) [Referto item (3) of page 108] Charge portable handset in another CORDLESS BASE UNIT NG OK cordless base unit;...
  • Page 88 KX-F900 - High level ..Check TX VCO voltage, +B signal and VTX signal. Base Unit: Approx 5V Handset: Approx 4V RF unit Check signal line. (+B = "high"?) (VTX = "high"?) YESi-'_ I Check TX VCO circuit. TX VCO voltage OK? I TX VCO voltage Base Unit: 1.3V_+O.5V heck RST.
  • Page 89 KX-F900 Check 20 dB adjustment value. When SG is ON, RF Readjust to 20 dB. unit pin 7 SQL = "low"? (or "C" mark lights) •RF unit I Is re-adjustment possible? t-_ _____ •Check peripheral circuits of IYES cordless base unit (IC302 pins 10, 11; D301, D302) portable handset (IC402 pins 10, 11;...
  • Page 90 ..(_) (No link (Portable handset TX) IS the data wave,orm input to Ol_ch-el i aio i-ndQ-20 _- pin 14 of CPU during charging_i IYES Does LED _ight up when the TALK switch of the portable battery, IC206 and handset is pressed. IC201.
  • Page 91 KX.F900-- 6_ No link (Base unit RX) Is the ID data output from -Check Q506 and CONT terminal during charging? l °l MPU. IYES Is the data signal output to pin 3 iNOI conversation with the portable handset? of RF unit drain during Check RF unit.

  • Page 92: Programming And Lists

    KX-F900 -- j 4. PROGRAMMING AND LISTS The programming functions are used to program the various features and functions of the machine, and to test the machine. Programming can be done in both the on-hook and off-hook conditions. This facilitates communication between the user and the service while programming the machine.
  • Page 93 4-3. USER MODE (The list below is an example of the SYSTEM SETUP LIST the unit prints out.) BASIC FEATURE LIST FEATLI_ CLI_ENT SETTING DATE & TIME JAN. 01 199G 12:00AM YOUR LOGO YOUR TELEPHONE NUMBER PRINT TRANSMISSION REPORT ERROR ]ERROR,ON,OFF] AUTO RECEIUE...
  • Page 94 KX-F900 4-4. SERVICE FUNCTION TABLE Code Function Set Value Remarks EffectiveRange Default Selects the pause time in 100 001~600X100msec 05000msec Setting of pause time 001_600 msec step. Selects the line break time during 01~99X10msec 700 msec 01 _99 Setting of flash time flashing in 10 msec step.
  • Page 95 ..1 Function Set Value EffectiveRange Remarks Selects the number of times that Setting of number of times 00_99 14 times 00_99 ITS is redialed (not including the that ITS is redialed first dialing). 001_999 Setting of ITS redial interval 001_999 030 sec Sets the interval of ITS redial.
  • Page 96 I ..KX-FO00-- Code Function Default Set Value Remarks Effective Range Selects ringer off switch when 1 :ON a call is received in the TEL/ Ringer off in TEL/FAX mode 2 : OFF FAX mode. 1 :ON Selects the tone detection in Pause tone detect 2 : OFF the pauses of the dialing.

  • Page 97: Test Functions

    Kx oo ..4-5. SERVICE MODE SETTING VALUES (Example of a printed out list) [SERVICE DATA LIST] .,_.--Code _,./SetValue [001...600]_:lUSms PAUSE TIME 050_100ms [Ol,.,99]_lOrnS FLASH TIME 70_10ms DIAL SPEED iBpps [1=10 2=20]pps 2100Hz FREQ. [1=2100 2=i100]Hz INTL. MODE [1=ON 2=OFF] AUTO STANDBY [1=ON 2=OFF]...
  • Page 98 KX-F900 UB[] Output the DTMF by single tone. DTMF SINGLE Service Mode TEST 1..On 2..Off LED TEST Service Mode All LEDs flashes on and off, or is illuminated. START Check the operation button. Service Mode KEY CHECK Indicate the button code at LCD while the button is pressed. {any key } FACTORY...

  • Page 99: Adjustment

    KX-F900 ADJUSTMENT Page 1. Table of Test Equipments and Tool ..........2. Adjusting the Feeder Pressure ............3. Confirmation of Separation Spring ........... 4. CCD Adjustments ..............102~104 5. Document Read Start Position Adjustment ......104,105 6. Codless Adjustment ..............107~113 '-'1 99--...

  • Page 100: Table Of Test Equipments And Tool

    Equipment Radio Tester : Marconi Model 2295A or later. 4.5 digit Digital Multimeter : B&K Model 2833 or compatible. Oscilloscope, single or dual channel : Panasonic VP-5512P100 or compatible. Telephone Analyzer : B&K Model 1050 or compatible. DC Power Supply, capable of supply 3.9V DC at'100mA NOTE : only needed if Telephone Analyzer does not have DC VOLTS output available.

  • Page 101: Adjusting The Feeder Presure

    KX-F900 2. ADJUSTING THE FEEDER PRESSURE If misfeeding of document, such a multiple feeding or no feeding, occurs frequently, try to adjust the feeder pressure by following steps below. (1) Open the front lid by pressing the front lid open. (2) Shift the position of the lever by using an instrument with a pointed end, like a clip or ball-point pen.
  • Page 102 KX_-F900 4. CCD ADJUSTMENTS Perform the following adjustment after replacing tens and CCD board. PREPARATION: 1) Remove the CCD unit from set. (Refer to page 120. ) 2) Make oscilloscope connections as shown in next page. 3) Attach the CCD TOOL on the CCD unit. 4) Connect between CCD unit and dlgital board with extension cord (Part No.
  • Page 103 KX-F900 ADJUSTMENT: [ LENS AND CCD READ POS-I'I-ION ADJUSTMENT 1) Loosen the lens fixing screw and CCD board fixing screw. 2) Adjust the position of the lens and CCD board so that the waveforrn appears as shown in the figure below. 3) Fix the lens fixing screw and CCD board fixing screw.
  • Page 104 --KX-F900 I WHITE LEVEL ADJUSTMENT 1) Remove the CCD TOOL from CCD unit. 2) Attach the white paper on the CCD unit. 3) Attach the CCD TOOL on the CCD unit. 4) Adjust VR801 on the CCD board so that the waveform becomes 1.0__+0.2V. Notes: 1.
  • Page 105 KX-F900 (for white level adjustment) (for lens and CCD read position adjustment) /'_: t,.., , T: [ LED Array _- Side !_i-Y] i]i ! :? :/(--- edge of the glass L _ _ ,-_ :2; :_ : : 4 [_L_ ..
  • Page 106 Kx..F900 106-...

  • Page 107: Cordless Adjustment

    KX-F900 6. CORDLESS ADJUSTMENT 6-1. OBJECTIVE This procedure will enable the technician to make adjustments to the KX-F900 PORTABLE HANDSET and CORDLESS BASE UNIT. _2. GENERALINFORMATION This procedure has 2 sections. The first section instructs the technician on how to align the PORTABLE HANDSET. We recommend aligning the PORTABLE HANDSET first, since you will need the PORTABLE HANDSET to align the CORDLESS BASE UNIT.
  • Page 108 Kx'F90o-I (2) SYMPTOM/REMEDY TABLE If you have one of the listed symptoms, please refer to this table and make the appropriate adjustments. SYMPTOM REMEDY Does not link with CORDLESSBASE UNIT Check Items (A) and (B). If both items are OK, adjust Items (D) and (E). Speaker level is unstable Check Items (A) and (B).
  • Page 109 KX-F900 PROCEDURE ADJUSTMENT ITEM EQUIPMENT DESCRIPTION Marconi On Marconi, press SINAD until the display shows 20dB Electric Detection SETUP Put in Receiver Test Mode. the SlNAD value and press dB. Then press RF GEN RF GEN and LEVEL. Attach the oscilloscope probe to 20dB FREQ 902.1000MHz test point (TP7).
  • Page 110 KX-F900 POR]ABLE HANDSET REFERENCE DRAWING > ©_ _© 110-...
  • Page 111 [ Kx: ,oo= CORDLESS BASE UNIT (1) PREPARATION Please prepare the BASE UNIT before performing any adjustment procedures. Refer to the CORDLESS BASE UNIT REFERENCE DRAWING for connection and test point locations. Remove the 3 screws on the bottom cabinet of the handset cradle. Remove the bottom cabinet of the handset cradle.
  • Page 112 I Kx-F 0 L (4) ADJUSTMENT PROCEDURE PROCEDURE ADJUSTMENT ITEM EQUIPMEN] DESCRIPTION Connect the minus wire to the metal cover of the Digital multimeter module and the plus wire to TP5, measure the volt- Rx VCO Voltage Set to the DC voltage measurement in age, and check that it comes within the 0.7 to 1.8 Confirmation only...
  • Page 113 KX-F900 CORDLESS BASE UNIT REFERENCE DRAWING *CONNECTION Marconi INPUT Corder Telephone KX-F900 Telephone Analyzer PHONE TEST JACKS#1 LINE SCOPE • CORDLESS BASE UNIT P.C.BOARD €.. (Component View) RF Unit _ Coaxial Cable VR501 TX Output • "_"'- Cordless Base VR502 P.C.Board Standard Modulation...
  • Page 114 " KX'FgOo-- DISASSEMBLY INSTRUCTIONS Page 1. How to Remove the Handset Cradle Cab, Cordless Base Unit Board and RF Unit ....... How to Remove the Operation Block ........... How to Remove the Operation Board and LCD ......How to Remove the Bottom Frame ..........

  • Page 115: Disassembly Instructions

    Ref. N o.1 HOW TO REMOVE THE PORTABLE HANDSET CRADLE CAB, CORDLESS BASE UNIT BOARD AND RF UNIT Procedure 1) Push the front lid open button to open the operation block. 2) Pull the libs of unit. 3) Remove the handset cradle cabinet. 4) Remove the 3 screws (A).

  • Page 116: How To Remove The Operation Block

    KX-F900 Ref. No. 1 HOW TO REMOVE THE OPERATION BLOCK Procedure Push the front lid open button in the direction of the arrow to open the operation block. Pull both sides of the arms. (See Fig. A) Pull up the operation block. ®...

  • Page 117: How To Remove The Operation Board And Lcd

    KX-F900 Ref. No. 3 HOW TO REMOVE THE OPERATION BOARD AND LCD Procedure 2--*3 1) Remove the 6 screws (A) and the operation block cover. 2) Remove the 2 screws (B). 3) Pull out the 1 connector and remove the 1 flexible connector. 4) Remove the operation board.

  • Page 118: How To Remove The Bottom Frame

    KX-F900 Ref. No. 4 HOW TO REMOVE THE BOTTOM FRAME Procedure Remove the 6 screws (A). Remove the 2 screws (B). Remove the bottom frame. BOTTOM FRAME Ref. No. 5 HOW TO REMOVE THE ANALOG, DIGITAL BOARDS, SPEAKER AND MIC Procedure 1) Remove the 3 screws (A).

  • Page 119: How To Remove The Power Supply Board And Ac Inlet

    - -KX:Fg00] Ref. No. 6 HOW TO REMOVE THE POWER SUPPLY BOARD AND AC INLET Procedure 1) Remove the 4 screws (A) and remove the power supply board. 2) Remove the 1 screw (B). 3) Remove the 2 connectors. 4) Remove the AC inlet. ¶r _ CONNECTOR _,(B)

  • Page 120: How To Remove The Ccd Unit

    KX-F900 Ref. No. 8 HOW TO REMOVE THE CCD UNIT Procedure 1) Remove the 2 screws (A). 4-*8 2) Remove the CCD unit. UNIT _--_- ° HOW TO CLEAN: Clean the glass of CCD unit with cloth soaked in alcohol. Ref.

  • Page 121: How To Remove The Cutter Block

    Ref. No. 10 HOW TO REMOVE THE CUTTER BLOCK Procedure 1) Push the front lid open button in the direction of the arrow to open the operation block. 2) Remove the upper guide. 3) Remove the 2 screws (A). 4) Remove the shaft with minus screwdriver (small size) as showning in following Fig. A. 5) Remove the paper cutter block.

  • Page 122: How To Remove The Recording Paper Cover

    r ..KX-F'O0 Ref. No. 11 HOW TO REMOVE THE RECODING PAPER COVER Procedure 1) Pull out the both arms as showing in following Fig. A. 10-* 11 2) Remove the recoding paper cover. RECORDING PAPER COVER - 122-...

  • Page 123: How To Remove The Thermal Head Roller

    Ref. No. 12 HOW TO REMOVE THE THERMAL HEAD ROLLER Procedure 1) Remove the thermal head block. 10-'12 2) Pull out the 2 connectors. 3) Remove the 2 screws (A) of thermal head to remove the guides. 4) Replace the thermal head. THERMAL HEAD BLOCK .

  • Page 124: Howto Remove The Document Tray

    KX-F900 HOW TO REMOVE THE DOCUMENT TRAY Ref. No. 13 Procedure 1) Push the installing section in the direction of the arrow to remove the document tray. ® DOCUMENT TRAY ® -124-...

  • Page 125: Howto Remove The Bottom Cabinet Of Portable Handset

    KX- -F9oo ..1 Ref. No. 14 HOW TO REMOVE THE BOTTOM CABINET OF PORTABLE HANDSET Procedure 1) Remove the battery cover in direction of arrow. 2) Remove the 2 screws (A) and remove the bottom cabinet. - -- Bottom Cabinet i _.._) Battery Cover ,I_,...

  • Page 126: How To Replace Flat Package Ic

    KX-F900 HOW TO REPLACE FLAT PACKAGE IC • PREPARATION -SOLDER Sparkle Solder 115A-1, 115B-1 Almit Solder KR-19, KR-19RMA Recommended power consumption will be between 30 W to 40 W. • Soldering iron Temperature of Copper Rod 662 + 50°F (350 +10°C ) (An expert may handle 60~80 W iron, but beginner might damage foil by overheating.) •...

  • Page 127: Connection Diagram

    KX-F900 CIRCUIT OPERATIONS Page 1. Connection Diagram ................ 2. General Block Diagram ............129-130 3. Control Section ................ 131-136 3-1. Block Diagram ..............3-2. Reset Circuit ..............3-3. SRAM and RTC Back up Circuit ........3-4. Supervision circuit for Thermal Head Temperature ..
  • Page 128 1. CONNECTION DIAGRAM ON2Z1 wl-I LED ARRAY +24v TO TEL LINE Ex. TEL [ sENs°R 1 °uZ °s 1-1 CN152 SPEAKER +SVD CN24" 11 _.._..O CN2____ _N272 1F _ BOARD < _1_ CN25" < CN10 CN25" +5VA M24V +SVU THPC)WEF POWER SUPPLY BOARD...

  • Page 129: Block Diagram

    [-= KX--F 0- ] 2. GENERAL BLOCK DIAGRAM The control section will be explained as shown in the block diagraln. (,1) ASIC (JC1) ....Composed mainly address decoder, modem control section, CPU and R-[C. Control the general FAX operation. Control the operation panel I/F. Control the thermal head I/F and CCD I/F.
  • Page 130 General BLock Diagram (FAX) OPERATION PANEL POWER SUPPLY SENSOR RECTIFIER SW. TRANS DOC READ-POSITION CONVERTER iiiiii ICON_ IIIlll FILTER SW. MOS IIIIII MATRIX SIRIAL ANALOG P.C.B 6£ +24V DIGITAL BACK VCC M ÷SV ÷5V 0101 RL1Ol L105 LINE THERMAL HEAD IC202 MOOR) ÷_ATALU...

  • Page 131: Control Section

    3. CONTROL SECTION 1Q ASIC (IC1) This custom IC is used for g_n_ral PAX operatior_ CPU: The KX-F900 uses a i_U equivalent CHU operating at 12MHz. Many of the peripheral functions are handled by custom designed LSI. As a result, the CPU only needs to process the result. Real time clock.
  • Page 132 D0-4 WR • MODEM(IC11 ROM(IC2) SRAM(IC3) Ao-17 Do--7!*/ A0-17D0_7F ----_ RD TO ANALOG RD'_ TXOUT RXlN < THPON 24MHz TONE 1 CCD_TL ASIC T2/BELL --_ F1 ,F2,FR,FTG,VIDEO (IC1) RESET HEAD-CTL KSTART,KLATCH,KSCLK, KTXD,KRXD _7° XWDERR "' OPE PANEL L_oJ qDJ STBI4,THLAT (IC7) HEAD THCLK,THDAT...

  • Page 133: Reset Circuit

    KX-F900 3-2, RESET CIRCUIT The output from pin 3 of the Reset IC (IC9) resets the gate array (IC1), the modem (IC11), the gate array on the operating board (10301), the Port IC (10151) on the analog board through the IC1. (1) During to momentary power interruption, a positive reset pulse of 175 msec or more is generated and the system is reset completely.

  • Page 134: Sram And Rtc Back Up Circuit

    KX-F900 3-3. SRAM and RTC BACK UP CIRCUIT (1)Function This unit has a lithium battery (BATT), which works tor the RAM (IC3) and Real Time Clock IC (RTC,lntegrated into ASIC:IC1 ). The user parameter of autodial numbers, the transmission ID, the system setup date and so on are stored in the RAM (IC3).

  • Page 135: Supervision Circuit For Thermal Head Temperature

    KX-F900 3-4. SUPERVISION CIRCUIT FOR THERMAL HEAD TEMPERATURE (1) Function Thermal head temperature is disposed to convert voltage to digital data by using A!D converter of IC1. The CPU decides the strobe width of the thermal head according to this value. Therefore, this circuit can keep the thermal head at an even temperature in order to stabilize the printing density and prevent the head from being overheated.

  • Page 136: Led Array

    ] ..K X:F,00 ] 3-5. LED ARRAY The LED ARRAY will light during transmission and copying as a light source to recognize document characters, patterns, or graph- ics on a document. It is also possible to light the LED ARRAY in the test mode. Circuit Diagram +24V ABOUT 10V (LED OFF)

  • Page 137: Facsimile Section

    4. FACSIMILE SECTION 4-1. IMAGE DATA FLOW DURING FACSIMILE OPERATION COPY (Fine, Super-Fine, Half Tone) (1) Line information is read by CCD, by way of route 1(!), it is inputted to IC1. (2) In ICl, data is adjusted to suitable level for A/D conversion at Analog Signal P_uc_ssing Section, and by way of route (_) it is inputted to A/D conversion (8 bit).

  • Page 138: Thermal Head

    [ ..Kx-F900 ..} Block Diagram SYS] EM ANALOG SIGNAL PROCESSING IMAGE SECTION PROCESSING SECTION cPul .,,__ /I \\" HEAD ,. THERMAL CONVERTER MODEM TEL.LINE...
  • Page 139 KX-F900 4-2. THERMAL HEAD (1)Function This unit utilizes state of the art thermal printer technology. The recording paper (roll paper) is chemically processed. When the thermal head contacts this paper it emits heat momen tarily, black dots (appearing almost as a point) are printed on the paper. If this point is continued, litters and/or diagrams appear, and the original document is reproduced.
  • Page 140 Circuit Diagram MAINBOARD ',JWIICHING POWER SUPPLY L_JAHD 1HERMAL HEAD 24V RL201 CN301 "/L_o_ "16 E 1 .+24V o=o_t_.;÷_v F-2:1: _ +_v I , ,0oo.. ,SOOT..l l---t NO'I --{Ii'---- --I NO'2 I _NO_._8 GATE ARRAYI [" {_}--'--_ I_ {_----_ (IC,) X I XlJI .5°...

  • Page 141: Read Section

    KX-F900 4-3. READ SECTION (1) Function eA document is illuminated by the LED array, and the reflections pass through the reduction-projection lens and are im- aged on the CCD image sensor. eThe document image is photoelectrically transferred by the CCD image sensor, and an analog image signal correspond- ing to one line of the document is continuously output.

  • Page 142: Stepping Motor Drive Section

    KX-F900 4-4. STEPPING MOTOR DRIVE CIRCUIT (1) Function Two individual stepping motors are used for transmission and reception. They feed document or recording paper synchronized for reading or printing. (2| Circuit Operation During motor drive, gate array IC1 pin 77/pin 71 becomes high level, Q2/Q4 are turned ON, and QI/Q3 go ON as a result, +24 V issuppliedto the motorcoil.

  • Page 143: Sensor And Switches

    KX-F900 4-5. SENSORS AND SWITCHES [Recording Paper Sensor (SW273)] _N_en recording paper is present, the plate push the switch lever, the input signal of IC151-6 pin (ANALOG) becomes low level. When the set runs out of recording paper, the plate leaves the switch lever, the input signal of IC151-6 pin (ANALOG) becomes high level.
  • Page 144 KX-F900 [Cover Open Sensor (SW271)] When the upper cabinet is closed, the plate push the switch lever, the input signal of IC151-33pin (ANALOG) becomes low level. When there is opened, the plate leaves the switch lever, the input signal of IC151-33pin (ANALOG) becomes high level.
  • Page 145 KX-F900 [Document Sensor (PI302)] When a document is set, the shelter plate shuts the sensor ligh, the phototransist or becomes OFF, and the input signal of IC301-15 pin (Operation) becomes high level. When there is no document, the shelter plate passes the sensor light, the pt_ototTa_s'ts_.or becomes ON, and the input signal of IC301-15 pin (Operation) becomes low level.

  • Page 146: Modem Section

    KX-F900 5. MODEM SECTION 5-1, FUNCTION The unit uses a 1 chip modem (IC11 ), enabling it to act as an interface between the control section for FAX sending and receiving, and the telephone line. During a sending operation, the digital image signals are modulated and sent to the telephone line, while during a receiving operation, the analog image signals which are received via the telephone line are demodulated and converted into digital image signals.
  • Page 147 KX-F900 (4) Concerning Transmission of Time [Transmission T,mel= I Contro, T,mo I+ Transmission time consists of the following. Control time : This is time at the start of transmission when functions at the sending and receiving sides are confirmed, transmission mode is established, and transmission and reception are synchronized.
  • Page 148 I..KX:FgO0 ..(6) Explanation of Technology (j) G3 Communication Signals (T. 30 Binary Process) In G3 Facsimile communication, this is the procedure for exchange of control signals between the sending and receiving machines both before and after transception of image signals. Control signals at 300 bps FSK are: 1850 Hz...0, 1650Hz...1.
  • Page 149 KX-F900 Bit No. DIS/DTC Reserved for future T.3 operation features Reserved for future T.3 operation features Transmitter - T.4 operation Receiver - T.4 operation Receiver - T.4 operation 11,12 Data signalling rate Data signalling rate V.27 ter fallback mode 2400 bit/s V.27 ter (0, O) V.27 ter 4800 bit/s V.27 ter...
  • Page 150 KX-F900 DIS/DTC Standard setting....Bit No. Extend field Extend field 2400 bitJs handshaking 2400 bitJs handshaking Uncompressed mode Uncompressed mode Error correction mode Error correction mode Frame size 0 = 256 octets Set to "0" 1 = 64 octets Error limiting mode Error limiting mode Reserved for G4 capability on PSTN...
  • Page 151 ; ----K_X-F9oo..Function Signal Identification Signal Format Refer to next page. Image Signal Sends 12 bit (0...01 X 6 times to receiver at same speed as image signal and notifies of completion of (Return to Control) transmission of first sheet. End of one communication X1110100 (End of Procedure)

  • Page 152: Modem Circuit Operation

    KX-F900 5-2.MODEM CIRCUIT OPERATION The modem (IC11) has all the hardware satisfying the IIU-I standards mentioned previously. When the gate array IO1 (116) is brought to low level, the modem (IO11) is chip-selected and resistors inside IC are selected by select signals from ASlO (IO1) A0-A4, commands are written through data bus, and all processing is controlled at the ASlC (ICl) according to ITU-T procedures.

  • Page 153: Explanation Of Analog Section Block Diagram

    KX-F900 6. EXPLANATION OF ANALOG SECTION BLOCK DIAGRAM (1)Function The analog section serves as interface with the telephone line. The digital board (ICt 1) for transmission reception of FAX signals, and the speech network IC (ICl 09) are connected to the NCU section. Switching between the digital board (IC11) and the other sections is executed by means of a multiplexer in the NCU section.
  • Page 154 Analog Unit Block Diagram Rx 0 " ÷ CN152 MIC__ I--_ IC109 SP-Phone IC151 SPEAKER AMP CN241 CROSS POINT SP MUTE IC241 SPEAKEo_ CN251 +5VA "_ +5VD +5VD +24V -" THPON +24V DATA ADDRESS 24-DOW TONE1 TONE2 (PG) from P,S.U...

  • Page 155: Ncu Section

    KX-F900 7 NCU Section 7-1. GENERAL This section is the interface with the telephone line and external telephone. It is composed of EXT. TEL Line relay (RL101), bell detection circuit, pulse dial circuit, Auto Disconnect circuit, TAM Interface circuit, line amplifier and sidetone circuits and multiplexer.
  • Page 156 7-5. AUTO DISCONNECT CIRCUIT (1)Function: This circuit is used to detect the fact that another telephone connected to the same line is OFF-Hook while the unit is in the time of TEL/FAX's arrival bell ringing operation. (2)Circuit Operation: Tip (Ring)---*D101 ---,Q101 -* C107 -* D102 -* Rl14 -* Q102 --* PC103. Duringthisinterval C107 chargesand the base of Q102 becomeshigh,and PC103 pin(2)becomeslow,causingPC103 to go ON.

  • Page 157: Its And Monitor Section

    KX-F900 8. ITS (Integrated telephone System) and MONITOR SECTION 8-1. GENERAL The general ITS operation is executed by the special iC109. This IC has a speakerphone circuit and a handset circuit in 1 chip, and control to each mode is executed from the outside (IC151). At the time of speakerphone operation the speaker output passes through the power amplifier (IC241).
  • Page 158 KX-F900 8-3. MONITOR CIRCUIT (1) DTMF Monitor (Speaker Operation) ICll (44)--_ C73-_ R90 -* IC10(6-7) --, CNI(IO) --* CN271(10) -* C184 --, R184 -* IC151(76-41) -_ C158 --, R161 C74 J. -* IC151 (40-38) --* R245 -* C245 --* IC241 (4-5,8) -* Speaker (Handset Operation) IC1 1 (44).,--_...

  • Page 159: Tam Interface Section

    KX-F900 9. TAM INTERFACE SECTION 9-1. FUNCTION In case that EXT. TAM position is selected in Receive nlude, th_ ul _itreu_iv_ documents loJ kAX call or the external TAM records a voice message automatically. To switch between answering machine and facsimile in EXT. TAM Mode. OPERATION EXPLANATION When bell signal rings as many as the numbers...
  • Page 160 9-2, CIRCUIT OPERATION TAM INTERFACE circuit consists of EXT. [AM HOOK detection circuit, CNG signal from the party's detection circuit, VOX detection circuit (to judge sound/no-sound) and RL101 (to separate EXT. TAM). (1) EXT. TAM HOOK detection circuit The bell comes to EXT. TAM and EXT. TAM seizes the line, causing to make DC LOOP. PC105 detects this voltage. During detection PC105 (4) becomes low.
  • Page 161 Circuit Diagram R102 ,,,,,, IC202 RL10_7 J_._ TO TEL LINE From line MODEM POS101 0C11) LOOP "_- _,_--I MODRX )SA 102 To line 010' ,_1-. L106 C102 •=- TO EXT TEL From C184 R182 "f'X R120 R104 R103 L103 _r_ 2 I I-----'_-, MODEM "1...

  • Page 162: Operation Panel

    KX-F900 10. OPERATION PANEL The unit consists of LCD (Liquid crystal display), KEYs and LEDs (light-emitting diode). They are controlled by the Gate Ar- ray (IC301) and AS IC (IC1 : On the DIGITAL BOARD). (Fig.-a) (COG TYPE) ASIC KEYS CN51 CN301 MATRIX...

  • Page 163: Lcd Cog Type

    KX-F900 11. LCD COG TYPE The Gate Array (IC301) needs only write ASCii code from the data bus (D4~D7). V0 is power supplies for crystal drive. R320, R322 are density control resistors. Consequently, in this set the timing (mainly positive clock) is generated by the LCD interface circuitry of the gate array (I0301).

  • Page 164: Switching Power Supply Section

    KX-F900 12. SWITCHING POWER SUPPLY SECTION Block Diagram AC Input _ Converter _o 24V Output HRectifier--l";-, 0--_ Input utput Circuit OGND A-B Voltage Wave Form Control Circuit (MC101) DC-DC Converter C-D Voltage Wave Form Over Circuit SUB Printed Current +5V Output Circuit Board Circuit IC101...
  • Page 165 KX-F900 The circuit in the previous page, when the transistor Q101 is ON, secondary rectifier diode D201 is OFF and the energy is charged in the transformer T101. Q101 continues being ON while the voltage is generated by control winding (B). Q101 is tuned OFF by control circuit, then each windings of T101 changes the polarity and rectifier diode D201 truns ON.
  • Page 166 KX-F900 Dummy load method (for the quick check of power supply output) Power Supply Board :Vollage Meter CN301 Output range ) 5V (5.IV:L5%) ® ® 24V (24.5V+4%) ® ® CN302 24V (24.5V+4%) (4.7K_ 1/2W)

  • Page 167: Cordless Section

    KX-F900 13. CORDLESS SECTION 13-1. EXPLANATION OF CPU DATA COMMUNICATION (1) Calling Portable Base Unit Handset (STANDBY MOD E) When calling, a communication request DATA (ACK-T) is transmitted from the Portable Handset first, and a permitting data (ACK-OK) is returned from [TALK] the Base Unit to it, then a ACK-T...
  • Page 168 (3) Ringing Portable Base Handset Unit (STANDBY MODE) Ring signal IN USE LED Flashing Ringing Ring TALK LED Flashing Ring Ring After detecting the Ring signal from circuit, Base Unit sends a ring signal DATA (Ring), then the Portable Handset starts ringing. (4) Ports for transmitting and receiving of data Portable Handset : transmitting ...
  • Page 169 KX-F900 PORTABLE HANDSET Transmitting DATA Format Pre data --q_I-L_J-qJ-U DATA 0 < >< > 10.08 ms 4.704 ms DATAI 29.568 ms 3.696 ms END data DATA Delimt 4.704 ms < > 8.4 ms IBASEUNITI Transmitting DATA Format Pre data DATA 0 /qJqJqJ-LRJ 1.344 ms 5.040 ms...

  • Page 170: Frequency Table

    KX-F900 (7) Pulse Dial Pulse DATA Predata I DATA0orDATA1 j D I DATA0orDATA1 END data 1 13 bit t_____> DATA Delimt When executing Pulse Dial,the Pulse Dial DATA is transmitted from the Portable Handset to the Base Unit in above format. The combination of DATA 0 and DATA 1 are changed by each Dial No.

  • Page 171: Block Diagram Of Cordless Base Unit

    ;CIRCUIT OPERATION 39_VHO (IINA 4U) 39_VHO NIV_ 1.1.1 _°_ (°_H _°_N_ ®H _ '_-7 o,_n_ _ ,r'l I I I./. ,,:( LO_IA .._OSNO...
  • Page 172 TX FREQ 902.100 ~ 903.550MHz 2ND IF FREQ 450KHz 1ST IF FREQ 10.7MHz RX FREQ 926.100 - 927.550MHz IC302 IC301 BPF r F303 F304 F302 Q304,303 10.7MHz Q305 450KHz + TMXE 2NDIF I DISCRIMI NATER I Ai OUT RX VCO FREQ = 1ST LOCAL FREQ 936.800 - 938.250MHz NOISE ', /...

  • Page 173: Circuit Operation Of Cordless Base Unit

    KX-F900 13-4. CIRCUIT OPERATION OF CORDLESS BASE UNIT (1) Power Circuit (charging circuit power supply) Pins 1 and 8 are switcl4ed in the clock period which is determined by capacitor C559 connected to pin 3 of the switching regulator IC (IC504). The switching output turns Q509 ON or OFF and reduces the 24V voltage to 12V.
  • Page 174 ..KX-F900 (3) Line Receiving Signal The signal supplied from the line is input from pin 6 of CN501 through the analog board, and ti is output from pin 10 of the RF unit via IC502 pins 21,20, 19, 17, 16, 13, 11 and 10 in this order. Circuit Diagram TX MUTE R553...

  • Page 175: Circuit Operation Of Rf Unit

    KX-F900 13-5. CIRCUIT OPERATION OF RF UNIT (1) PLL Circuit The PLL IC comprises two PLL blocks, one for transmission and one for reception, a transmission multiplier circuit, and a reception first mixer circuit. The 900 MHz band frequency from the RX VCO, the 450 MHz band frequency from the TX VCO, and the 10.25 MHz reference oscillator frequency are frequency divided by a frequency divider controlled by the CPU to create the 12.5 kHz comparison frequency.
  • Page 176 KX-F900 (3) Receiver RF Circuit ( ): Portable Handset The electric wave received from the antenna ia attenuated by the SAW filter F302 (F402) except the received fre- quency band Then it is amplifier Q304 (Q404) and Q303 (Q403), and supplied to the IC301 (IC401) pin 23 (MIXER input).
  • Page 177 KX-F900 (5) TX Power Circuit ( ): Portable Handset After being multiplied by 2 inside IC301 (IC401) to make it a 900 MHz band frequency, the transmission signal is amplified by Q301 and Q302 (Q401 and Q402) and frequency elements outside of the transmission fre- quency are attenuated b_t dielectric filter F301 (F401).

  • Page 178: Block Diagram Of Portable Handset

    0 AGC Q208 LC_! MAX IMUM DEVIATION ADJUST VR202 MIC SENEITIVlTY ADJUSTJ- SPK LEVEL ADJUST Q21o,21, Q217 r--1-I--_ SPEAKER L ..MIC MUTE RX V01 IC201 TX DATA [ SPK MUTE .--L Q201 "4 UNLOCK CLOCK DATA CLOCK 17 CHARGE DATA UNLOCK D201...
  • Page 179 "-lq TX FREQ 926.100 - 927.550MHz 2ND IF FREQ 450KHz 1ST IF FREQ IO.7MHz RX FREQ 902.100 - 903.550MHz IC401 IC402 F404 F403 F402 Q404,403 IO.TMHz 04O5 450KHz 1ST IF 2ND IF DISCRIMI I A F OUT_ © NATER MIXER I-I 1ST MIXER _-_ ..

  • Page 180: Circuit Operation Of Portable Handset

    Kx:F900 13-7. CIRCUIT OPERATION OF PORTABLE HANDSET (1) Power Supply Ciurcuit As indicated in Fig.40, voltage is supplied separately to each block. In order to ensure that the RF block in particular has a stable fixed-voltage power supply, the RF block is equipped with a dedicated stabilized power supply.
  • Page 181 KX-F900 (3) Ringer Circuit If the ringer volume is set to low and the key is entered occurs, an alarm tone is output from pin 45 of the CPU and input to Q212. This causes Q213 to turn off and results in a softer beep tone. If the ringer volume is set to high, Q213 turns on and results in a louder beep tone.
  • Page 182 KX-F900 Circuit Diagram IC202 EXPANDER IC208 3KHz LPF I I I _ Sidetone RF Part ___JcontrollC AF __ VR202 Receive level adjust Gain control :0_38 R265 SPEAKER RX VOL SPK MUTE (_) SPK MUTE (5) Sending Signal The audio signal from the microphone is amplified by Q208 and then passes through a limiter, mute circuit, compander, and 3 kHz LPF built into IC202.
  • Page 183 KX-F900 (6) ReseUPowe_ uow.luattery LowilD When the battery is installed in the portable hm}dset, the reset circuit consisting of R289, C255, and Q204 functions, inputting a reset signal to the CPU. This ensures that the unit will operate normally without the user's needing to switch the power off and on.
  • Page 184 KX-F900 • FOR SCHEMATIC DIAGRAM DC voltage measurements are take,, wLth Ob_;lilo_bUp_: or tester from ground. llLbpul [ ant safety notiou ........: ..The schematic diagram and circuit board may be modified at any time with the development of new technology.

  • Page 185: Printed Circuit Board (Digital Board)

    PRINTED CIRCUIT BOARD (DIGITAL BOARD) (Bottom View) R55 R53 R5 R56 R54 R52 • • Note: Note: This oircuit shown in--on the conductor indicates printed 1. This circuit shown in L__] on the conductor indicates primea circuit on the front side of the printed circuit board.
  • Page 186 i KX'FO00 .... KX'_,O0--- PRINTED CIRCUIT BOARD (DIGITAL. BOARD) (Component View) Note: Note: 1. This circuit shown in _ on the conductor indicates printed 1. This circuit shown in [___1 on the conductor indicates printed circuit on the back side of the printed circuit board. circuit on the front side of the printed circuit boarcr.

  • Page 187: Schematic Diagram (Digital Circuit)

    SCHEMATIC DIAGRAM (DIGITAL CIRCUIT) ivlL, l i LJi • }___ +24V +24V +24V 1Uri.. DRIVE +24V [)RIVE _" TH-HEAD 124V *5V .."-4 o_i_#i_i_i<,,i,,i IOl/<,,,, oo 8 8 8 g o 8 <_ IHEHMAL HEAL.) iLMP ..,LAT GNO! ..I I I I I,I _Z£1_m_...

  • Page 188: Schematic Diagram (Analog Circuit)

    SCHEMATIC DIAGRAM (ANALOG CIRCUIT) 5 ..*5VD POSI0J ILLJACK Olol I--T_- ..T -÷_,, ..L-,-- - 'V_-. RII6 Ll05 5Al01 *5v0 C102 POt03 "_ R28_ i.SK SA102 *5VO L 106 NCw4 R223 Ll03 ^€_¢N----- _J_>[ " SELL R_81 I:1104 EXTEL s_._o,,,_...
  • Page 189 KX-F900 KX-F900 PRINTED CIRCUIT BOARD (ANALOG BOARD) ./__ (Component View) 1029Z SAIOL _102 L106 R103 R'N6 ztet ¢N151 JlSO EXT TEL PCI05 PC101 PC102 189-...

  • Page 190: Printed Circuit Board (Analog Board)

    ..KX_Fg00 1 I KX:FgO_ ..PRINTED CIRCUIT BOARD (ANALOG BOARD) (Bottom View) _i_, ..L103 D101...

  • Page 191: Schematic Diagram And Printed Circuit Board (Ccd)

    KX-F900 KX-F900 PRINTED CIRCUIT BOARD AND SCHEMATIC DIAGRAM (CCD) ..-L._ CCD BOARD CCD CIRCUIT (Component View) __-L_.F-q_.F-L i %s[ _H.FL_FLJ3d3d3_ _G_IN --I F t.:,_,,,_S___l I..9.216 ms 9.216 ms _-SV RB03 1208 (Bottom View) RB02 R801 3.5V 3.5V_ _[ 0.5_0.6V 9.216 191 -...

  • Page 192: Printed Circuit Board (Switching Power Supply)

    I KX-FgOO 11 KX-FO00 PRINTED CIRCUIT BOARD (SWITCHING POWER SUPPLY) ..(Component View) (Bottom View) mmmm CN31 ..DIOI -.NV- PC102 0102 ..PRIMARY CN302 R202 ... 192-...

  • Page 193: Schematic Diagram (Switching Power Supply Circuit)

    I..Kx-F90oI l---K-x-Fg00 I SCHEMATIC DIAGRAM (SWITCHING POWER SUPPLY) Rlll Rl13 THI01 CN301 100k H24V D104 H24V -I 0 ZNR102 ZNR103 ,/_ C105 , II 0.0047 Z_ C102 CN302 C103 C104 P-ON IC101 0.001F_0.001 z_R101 M24V Z_L101 • rrl_ ----@_(N--- R127 C124 ZNR101 2.2K...

  • Page 194: Printed Circuit Board (Operation Panel)

    PRINTED CIRCUIT BOARD (OPERATION PANEL BOARD) ..12 ..(Component View) (Bottom View) • • • • 1,3,5,7, !! o ¸ 8,10-14, I | 1_9,2o,/J _t2 ''_/...

  • Page 195: Schematic Diagram (Operation Panel Circuit)

    KX-F900 Kx-Fg00 SCHEMATIC DIAGRAM (OPERATION PANEL CIRCUIT) J LJ LJ L_,v, . z. c3_ol KSL_ KSL2 K5L2 KSLI :SET al;l KSLO "TXO KSL0 VVV- KIN/ 1309 AUTO RECIVE SCLK KIN_ V'v% KIN5 1307 5332 $33! 5330 $329 KIN4 TART K]N:_ KIN2 R322 ,_sv LCD CONTRAST...

  • Page 196: Printed Circuit Board (Cordless Base Unit)

    ..f oo I KX.FgOO -¸ ] PRINTED CIRCUIT BOARD (CORDLESS BASE UNIT) ;¢Z (Component View) (Bottom View) OO [] Note: Note: 1. This circuit shown in _ on the conductor indicates printed 1. This circuit shown in ___1 on the conductor indicates printed circuit on the front side of the printed circuit boarcl.

  • Page 197: Schematic Diagram (Cordless Base Unit)

    [ Kx:_,oo 1 Kx :_;oo I SCHEMATIC DIAGRAM (CORDLESS BASE UNIT) '° " -107-...

  • Page 198: Printed Circuit Board (Rf Unit)

    KX'F900 KX-F900- PRINTED CIRCUIT BOARD (RF UNIT) ..IL) (Component View) (Flow Solder Side View View) D302 D301 C613e C612 • IC 302 ¢6 i i ii!iti ¸ i...

  • Page 199: Schematic Diagram (Rf Unit)

    KX-F900 KX-F900 SCHEMATIC DIAGRAM (RF UNIT) 0308 Q309 CN301 C304 _OOOP D310 C303 L 31B RX VCO i..10.25MHz 10.TMHz R338 R320 4"/ Pollabie Handset Signal -199-...

  • Page 200: Printed Circuit Board (Portable Handset)

    KX-F°00 i I "X-Fg00' PRINTED CIRCUIT BOARD (PORTABLE HANDSET) (Flow Solder Side View View) (Component View)

  • Page 201: Schematic Diagram (Portable Handset)

    KX-F900 KX-Fg00 SCHEMATIC DIAGRAM (PORTABLE HANDSET) 1L207 R402 C404 L422 C40G FL401 L421 _ooop _j- R404 £_OB D403 TXVCO & R412 R250 L402 :248 R218 M,_IN( VCC ( IC201 _L s_ RXB ( ) TX[ ) G.D RST ( X401 C220 L ....

  • Page 202: Schematic Diagram And Printed Circuit Board (Charge)

    KX-F900 KX-F900 PRINTED CIRCUIT BOARD AND SCHEMATIC DIAGRAM (CHARGE) CN652 I^IBIclDIEIFIoI, LEl)651 IAIBIclII2bI41sI61 IsIglAIBIcI__ MAIN CHARGE CN654 CNbb 0--- ,DIP L65"/ J551 EEl-- EEF---- J652 CHARGE J653 J654 LE0651 R65t S_CHARGE R652 M_CHARGE ,/vv LED652 202 -...
  • Page 203 KX-F900 TERMINAL GUIDE OF IC'S, TRANSISTORS AND DIODES 2_14 _" 16 PQVIBA12003 PFWlF900M PQVITC4066BF PQVICX58257C 33_12 MN53007QAF PFVINJ2360D AN 1431T PQVI0008GE12 PFVIFA5317P 80_31 .-'_ 30 PQVlMM1245BF AN6183SE1 PQVIMC34119M PQVlNJM2113V PQVINJM4558M PQVlNJM2903M AN6116FAQ PFVIR96DFXL 10_37 109<'_'_ _" ..36 AN6165SB PQVITC4069UBF PQVIM64084AF PQVIS79164FU PFVIT7D56...
  • Page 204 KX-F900 2SA1627 2SC4604 2SC2235 PQVDD2SBA60 PQVDS1ZB40F1 Cathode Cat,__h_ An°de Anode PQVDAK04A PQVDS5688G PQVDERA1802 PQVDERA81004 MA4220 MA6D49 PFVDAG01A MA165 MA4180 MA7200 RLS71 MAll0 Cat h°de@Anod Cathode MA2Slll MA8047 PQVDRB751 H4 PQVDPY1112H MA4075 PQVDBR1112H MA2300 1SS131 lSSl19 PQVDHZS2B1 hode Cathod_ Anode PQVDSLR325MC PQVDSR325CA47 MA3062 PQVDSB703Q...

  • Page 205: Tools

    KX-F900 TOOLS PCB3 PCB5 ,EC5 PCB1 PCB2 EC14 EC11 EC13 PCB8 """ PCB6-1 EC17 PCB6 -205-...

  • Page 206: Cabinet, Mechanical And Electrical Parts Location

    --r_0o..CABINET , MECHANICAL AND ELECTRICAL PARTS LOCATION 1. Operation Panel Section ® - 206-...
  • Page 207 KX-F900 2.Upper Section ¢ (_) ; ® ® 62-1 Note: Attach the pad plate to the top of the cutter unit as shown above. ,;40-' - 207-...
  • Page 208 KX-F900 3.Lower Section PCB5 ® ® ® & ®& ® - 208-...
  • Page 209 KX-F900 _. C(.;i3 SecI:io=_ LED AR_ COD CHASSIS 1 POitNT(_ Note; Place the LED Array in the center of point® as shown above. - 209 --...
  • Page 210 KX-F900 5. PORTABLE HANDSET E902 208-1 204_ E903 20;- -210-...
  • Page 211 KX-F9O0 6. ACTUAL SIZE OF SCREWS AND WASHER Part No. Figure XTW3+Sl XTW3+W6P PJHE5065Z XSN3+W6FZ [_]]]]]]] XYC3+CF6 _]]]]] XSB4+6 XYN2+C8 XWC4B XYN3+FIO _]]]]_]_ XTB3+ 12G XTW3+CS12P XTB26+8J 0]]]]]_ XTW26+12F XTB3+ 10G {_]_333_ • 211-...

  • Page 212: Accessories And Packing Materials

    _- ..KX-Fg_00 ACCESSORIES AND PACKING MATERIALS A2_,' Battery (KX-A92) A6, A7, A9 Note: The rechargeable Ni-Cd battery KX-A92 are available through sales route o4 Panaso_c- -212-...
  • Page 213 KX-F900 REPLACEMENT PARTS LIST This replacement parts list is for U.S.A. version only. Refer to the simplified manual (cover)for otherareas. :_ef. No. Part No. Part Name & Description Notes: Model KX-F900 2. UPPER CABINET/ 1. RTL (Retention Time Limited) THERMAL HEAD SECTION) The marking (RTL) indicates that the Retention Time is limited for this item.
  • Page 214 KX'FgO0 This replacement parts list is for U.S,A. version only. Refer to the simplified manual (cover)for 0the; areas. :tel. No. Part No. Part Name & Description Ref. No. I Part No. Part Name & Description ACCESSORIES AND PACKING MATERIALS TX MOTOR PFJQ1003Z PFJS05R24Z CONNECTOR,...
  • Page 215 ---Kx-Fg00- This replacement parts list is for U.S.A. version only. Refer to the simplified manual (cover) for other areas.......... Ref. No. Part No. Part No. Value Part Name & Description Ref. No. (BATTERY) (RESISTORS) BAT10 PQPCR2032H09 PRIMARY BA'I-FERY ERJ3GEYJ473 ERJ3GEYJ473 ERJ3GEYJ473 ERJ3GEYJ101...
  • Page 216 i KX-F,o I This replacement parts list is for U.S.A. version only. Refer to the simplified manual (cover) for other areas. Ref. No. Part No. Value Part Name & Description & Value Ref. No. Part No. PQCUV1E104MD PQ4R10XJ000 JUMPER, PQCUVIE104MD PQ4R10XJ000 JUMPER, PQCUV1E104MD...
  • Page 217 KX-F900 This replacement parts list is for U.S.A. version only. Refer to the simplified manual (cover) for other areas. Ref. No Pad No. Ref. No. Part No. Part Name & Description Part Name & Description & Value (DIODES) VARISTORS) )101 PQVDSIZB40F1 DIODE(SI) ;A101...
  • Page 218 KX-F900 This replacement parts list is for U.S.A. version only. Refer to the simplified manual (cover) for other areas. ;tef. No. i Pa_ No. Value Pa_ No. Value 1. N_ P°s I PQ4R10XJ!02 JUMPER, ERJ3GEYJ101 E RJ3GEYJ !03 4.7K PQ4Rt0XJ472 E RJ3GEYJ103 100K PQ4R10XJ101...
  • Page 219 KX-F900 This replacement parts list is for U.S.A. version only. Refer to the simplified manual (cover) for other areas. Ref. No. Part No. Value _ef. No. Pan No. Value ECEA1HU330 :136 ECEAOJK221 ;257 ECEA1HKS4R7 ',137 ECUV1C473KBV 0.047 :265 ECUVIHIO4ZFV ;138 ECUV1H223KBV 0.022 ',139...
  • Page 220 X--F90O ] This replacement parts list is for U.S.A. version only. Refer to the simplified manual (cover) for other areas. ef. No. Part No. Part Name & Description & Value Part Name & Description I Pcs Ref. No. I Part No. OPERATION BOARD PARTS (PHOTO COPLERS)
  • Page 221 KX-F900 This replacement parts list is for U.S.A. version only. Refer to the simplified manual (cover) for other areas. No I Pa No I Pa Name,Oesori on,Vaue IPcs Ref. No. I Part No. Part Name & Description CCD BOARD PARTS SWITCHING POWER SUPPLY...
  • Page 222 I ..Kx. ,oo ..1 This replacement parts list is for U.S,A. version only. Refer to the simplified manual (cover) for other areas. Ref. No. Pan No. Ref. No. Part Name & Description & Value Pa_ No. Part Name & Description &...
  • Page 223 KX-F900- .... parts list is for U.S.A. version only. Refer to the simplified manual (cover) for other areas. This replacement :{ef. No. Part No. Value Part Name & Description & Value _ef. No. I Part No. PQ4R10XJ000 JUMPER, (DIODES) PQ4R 10X J000 JUMPER, DIODE(SI) _PQVDSBT03Q...
  • Page 224 i Kx--Fgoo ..j Refer to the simplified manual (cover) for other areas. This replacement parts list is for U.S.A. version only. Part No. Part Name & Description & Value Value ReL No. Ref. No. Pa_ No. C536 PQCUVt E104MD PQ4R10XJ563 _600 C537 PQCUV 1H 105JC...
  • Page 225 KX-F900 Refer to the simplified manual (cover) for other areas. This replacement parts list is for U.S.A. version only. Value PartName & Description ',ef. No. I Part No. el. No, I Part No. (RESISTORS) (DIODES) DIODE(SI) I ERJ3GEYJ333 I PQV DRB751 N4 DIODE(SI) IERJ3GEYJ470 I PQVDRB751 H4...
  • Page 226 KX-F900 This replacement parts list is for U.S.A. version only, Refer to the simplified manual (cover) for other areas............Ref. No, Pa_ No. Part Name & Description & Value Value Ref. No. Part No. ECUV1H101JCV 100P C603 (CAPACITORS) ECUV1H101JCV 100P ;604 ECUV1H101JCV...
  • Page 227 KX-F900 replacement parts list is for U.S.A. version only. Refer to the simplified manual (cover) for other areas. Ref. No. Part No. Part Name & Description Ref. No. Pa_ No. Part Name & Description & Value (DIODES) (CRYSTALS) RXVCO PQV032Z CRYSTAL OSCILLATOR TXVCO...
  • Page 228 KX-F900 This replacement parts list is for U.S.A. version only. Refer to the simplified manual (cover) for other areas. Value Value _el. No. PaM No. tef. No. I Part No. 330K _>46 ERJ3GEYJ 124 120K IERJ3GEYJ334 ERJ3GEYJ223 IERJ3GEYJ821 ERJ3GEYJ223 _>48 IERJ3GEYJ102 2.2K ._49...
  • Page 229 KX-F900 This replacement parts list is for U.S.A. version only. Refer to the simplified manual (cover) for other areas. Ref. No. Part No. Ref. No. Part No. Part Name & Description & Value Part Name & Description & Value C446 ECUV1H020CCV C237 ECUV1H 102KBV...
  • Page 230 KX-Fg00 I This replacement parts list is for U.S.A. version only. Refer to the simplified manual (cover) for other areas......Ref. No. Part No. Pa_ Name & Description & Value (CONNECTORS) CONNECTOR CN651 PFJS08R26Z BATTERYTERMINAL CN652 PQJT10119Z BATTERYTERMINAL CN653 PQJT10119Z BATTERY TERMINAL...

Table of Contents