Panasonic KX-PRW120W Service Manual
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Panasonic KX-PRW120W Service Manual

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KX-PRWA10
(Handset)
(Charger Unit)
Configuration for each model
Model No
Base Unit
Handset
1(PRW120) 1 (PRWA10)
KX-PRW120
KX-PRWA10*
1 (PRWA10)
*KX-PRWA10 is also an optional accessory, which contains a
handset and a charger.
KX-PRW120
(Base Unit)
Charger Unit Expandable
Up to 6
1
Telephone Equipment
KX-PRW120W
Model No.
KX-PRWA10W
Premium Design Phone with Smartphone
Connect
W: White Version
(for USA)
© Panasonic System Networks Co., Ltd. 2013
Unauthorized copying and distribution is a
violation of law.
ORDER NO. KM41312777CE
F13

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Summary of Contents for Panasonic KX-PRW120W

  • Page 1 Charger Unit Expandable 1(PRW120) 1 (PRWA10) KX-PRW120 Up to 6 KX-PRWA10* 1 (PRWA10) *KX-PRWA10 is also an optional accessory, which contains a handset and a charger. © Panasonic System Networks Co., Ltd. 2013 Unauthorized copying and distribution is a violation of law.
  • Page 2 KX-PRW120W/KX-PRWA10W WARNING This service information is designed for experienced repair technicians only and is not 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.

  • Page 3: Table Of Contents

    KX-PRW120W/KX-PRWA10W TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions----------------------------------------------- 5 9.1.6. Check Handset Transmission -------------------- 39 1.1. For Service Technicians --------------------------------- 5 9.1.7. Check Handset Reception ------------------------ 39 2 Warning -------------------------------------------------------------- 5 9.1.8. Check Caller ID -------------------------------------- 39 2.1. Battery Caution--------------------------------------------- 5 9.1.9.
  • Page 4 KX-PRW120W/KX-PRWA10W 13 Schematic Diagram--------------------------------------------- 71 13.1. For Schematic Diagram -------------------------------- 71 13.1.1. Base Unit (Base Unit (Main)) --------------------- 71 13.1.2. Handset (Handset) ---------------------------------- 71 13.2. Base Unit (Main)------------------------------------------ 72 13.3. Handset----------------------------------------------------- 74 14 Printed Circuit Board ------------------------------------------ 77 14.1. Base Unit (Main)------------------------------------------ 77 14.1.1.

  • Page 5: Safety Precautions

    KX-PRW120W/KX-PRWA10W 1 Safety Precautions 1.1. For Service Technicians • Repair service shall be provided in accordance with repair technology information such as service manual so as to prevent fires, injury or electric shock, which can be caused by improper repair work.

  • Page 6: Suggested Pbf Solder

    KX-PRW120W/KX-PRWA10W 2.2.1. Suggested PbF Solder There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper (Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu) or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the manufacturer’s specific instructions for the melting points of their products and any precautions for using their product with other materials.

  • Page 7: Specifications

    KX-PRW120W/KX-PRWA10W 3 Specifications Standard: Bit rate: 1,152 kbit/s DECT 6.0 (Digital Enhanced Cordless Telecommunications 6.0) Modulation: Wi-Fi (IEEE 802.11 b/g/n) GFSK (Gaussian Frequency Shift Keying) Number of channels: RF transmission power: 60 Duplex Channels DECT: Frequency range: 115 mW (max.)

  • Page 8: Technical Descriptions

    KX-PRW120W/KX-PRWA10W 4 Technical Descriptions 4.1. US-DECT Description The frequency range of 1.92 GHz-1.93 GHz is used. Transmitting and receiving carrier between base unit and Portable is same frequency. Refer to Frequency Table (P.60). 4.1.1. TDD Frame Format 5 ms 5 ms Up Link ( Portable - >...

  • Page 9: Signal Flowchart In The Radio Parts

    KX-PRW120W/KX-PRWA10W 4.1.3. Signal Flowchart in the Radio Parts Reception Base unit: A voice signal from TEL line is encoded to digital data and converted into a 1.9 GHz modulated radio signal by BBIC(IC501). The RF signal, after which is amplified in BBIC, is fed to selected antenna.

  • Page 10: Block Diagram (Base Unit)

    KX-PRW120W/KX-PRWA10W 4.2. Block Diagram (Base Unit)

  • Page 11: Circuit Operation (Base Unit)

    KX-PRW120W/KX-PRWA10W 4.3. Circuit Operation (Base Unit) 4.3.1. Outline Base Unit consists of the following ICs as shown in Block Diagram (Base Unit) (P.10). • DECT BBIC (Base Band IC): IC501 - Handling all the audio, signal and data processing needed in a DECT base unit...

  • Page 12: Circuit Operation (Base Unit)

    KX-PRW120W/KX-PRWA10W 4.4. Circuit Operation (Base Unit) General Description: (BBIC, Flash Memory, EERROM) is a digital speech/signal processing system that implements all the functions of speechcom- pression, record and playback, and memory management required in a digital telephone answering machine.The BBIC system is fully controlled by a host processor.

  • Page 13: Power Supply Circuit

    KX-PRW120W/KX-PRWA10W 4.4.4. Power Supply Circuit The power is supplied to the DECT BBIC, QSPI FLASH MEMORY, FLASH MEMORY, EEPROM and Charge Contact from AC Adaptor (+5.5 V) as shown in Fig.101. The power supply is as follows; • DECT BBIC (IC501): DC Jack (+5.5 V) →...

  • Page 14: Telephone Line Interface

    KX-PRW120W/KX-PRWA10W 4.4.5. Telephone Line Interface <Function> • Bell signal detection • Clip signal detection • ON/OFF hook circuit Bell & Clip (: Calling Line Identification Presentation: Caller ID) signal detection: In the standby mode, Q141 is open to cut the DC loop current and decrease the ring load.

  • Page 15: Calling Line Identification (Caller Id)/Call Waiting Caller

    KX-PRW120W/KX-PRWA10W Parallel connection detection when off hook: When off hook, the voltage is monitored at pin (F2) of IC501; the presence/absence of a parallel connection is determined by detecting the voltage changes. If the Auto disconnect function is ON and statuses are Hold, receiving ICM, OGM transmitting, BBIC disconnects the line after detecting parallel connection is off hook.
  • Page 16 KX-PRW120W/KX-PRWA10W Call Waiting Caller ID Calling Identity Delivery on Call Waiting (CIDCW) is a CLASS service that allows a customer, while off-hook on an existing call, to receive information about a calling party on a waited call. The transmission of the calling information takes place almost immediately after the customer is alerted to the new call so he/she can use this information to decide whether to take the new call.

  • Page 17: Block Diagram (Handset)

    KX-PRW120W/KX-PRWA10W 4.5. Block Diagram (Handset)

  • Page 18: Circuit Operation (Handset)

    KX-PRW120W/KX-PRWA10W 4.6. Circuit Operation (Handset) 4.6.1. Outline Handset consists of the following ICs as shown in Block Diagram (Handset) (P.17). • DECT BBIC (Base Band IC): IC1 - All data signals (forming/analyzing ACK or CMD signal) - All interfaces (ex: Key, Detector Circuit, Charge, DC/DC Converter, EEPROM, LCD, RF Power Amp.)

  • Page 19: Speakerphone

    KX-PRW120W/KX-PRWA10W 4.6.5. Speakerphone The hands-free loudspeaker at SP+ and SP- is used to generate the ring alarm.

  • Page 20: Signal Route

    KX-PRW120W/KX-PRWA10W 4.7. Signal Route SIGNAL ROUTE SIGNAL ROUTE DTMF TONE (BASE UNIT) TEL OUT IC501 (LSRp) - C184 - Q161 - Q141 - D101 (to Tel Line) P101- B (BASE UNIT) DTMF TONE D101 - Q141 - Q161 - R164 - C173 - R178 - IC501 (MICn)
  • Page 21 KX-PRW120W/KX-PRWA10W SIGNAL ROUTE SIGNAL ROUTE (BASE UNIT) Message Play IC601 (2) - IC501 (SPI_DI) - IC501 (LSRp) - C184 - Q161 - Q141 - D101 (to Tel Line) P101 - B (HANDSET) MIC (+) - C10 - R17 - IC1 (J3)

  • Page 22: Location Of Controls And Components

    KX-PRW120W/KX-PRWA10W 5 Location of Controls and Components Refer to the Operating Instructions. Note: You can download and refer to the Operating Instructions (Instruction book) on TSN Server. 6 Installation Instructions Refer to the Operating Instructions. Note: You can download and refer to the Operating Instructions (Instruction book) on TSN Server.

  • Page 23: Service Mode

    KX-PRW120W/KX-PRWA10W 8 Service Mode 8.1. Engineering Mode 8.1.1. Base Unit Important: Make sure the address on LCD is correct when entering new data. Otherwise, you m ay ruin the unit. Soft keys Navigator key/ (Volume) key {R/ECO} R: Recall/Flash ECO: Eco mode shortcut key...
  • Page 24 KX-PRW120W/KX-PRWA10W Frequently Used Items (Base Unit) ex.) Items Address Default Data New Data Remarks C-ID(FSK) sensitivity 07 5D/07 5C 00/51 00/39 00/28 When the hex change from 00/51 to 00/39 or (3 dB up) (6 dB up) 00/28, gain increase by 3 dB or 6 dB.

  • Page 25: Handset

    KX-PRW120W/KX-PRWA10W 8.1.2. Handset Important: Make sure the address on LCD is correct when entering new data. Otherwise, you may ruin the unit. Soft keys Navigator key/ {R/ECO} (Volume) key R: Recall/Flash ECO: Eco mode shortcut key {ic} (Off/Power) Dial keypad...
  • Page 26 KX-PRW120W/KX-PRWA10W Frequently Used Items (Handset) ex.) Items Address Default Data New Data Possible Adjusted Possible Adjusted Remarks Value MAX (hex) Value MIN (hex) Sending level 05 07 Adjusted value Given value (*2) Receiving level 05 08 Adjusted value Given value...

  • Page 27: Eeprom Layout (Handset)

    KX-PRW120W/KX-PRWA10W 8.2. EEPROM LAYOUT (Handset) 8.2.1. Scope The purpose of this section is to describe the layout of the EEPROM (IC3) for the KX-PRWA10 Handset. The EEPROM contains hardware, software, and user specific parameters. Some parameters are set during production of the handset, some are set by the user when configuring the handset, and some during normal use of the phone.

  • Page 28: How To Clear User Setting

    KX-PRW120W/KX-PRWA10W 8.3. How to Clear User Setting Units are reset to the Factory settings by this operation (Erase recorded Voice messages, stored Phone numbers, Caller list and etc.) Note: • Some menus are not reset. Refer to Operating Instructions (P.22).

  • Page 29: Troubleshooting Guide

    KX-PRW120W/KX-PRWA10W 9 Troubleshooting Guide 9.1. Troubleshooting Flowchart Flow Chart Not working Power ON Base Unit Check Power Not working Smartphone Connect Check Wi-Fi No bell Bell Bell Reception Link No Link No charge Battery Charge Check Battery Charge Check Link...

  • Page 30: Check Power

    KX-PRW120W/KX-PRWA10W 9.1.1. Check Power 9.1.1.1. Base Unit Is the AC Adaptor inserted into AC outlet? (*1) Is input of IC302 about 5.5 V? Check C321, C341 are not shorted. Check AC Adaptor. Is the output voltage of IC302 about 3.3V? Check Power Supply Circuit.

  • Page 31: Check Wi

    KX-PRW120W/KX-PRWA10W 9.1.1.2. Handset Is the battery inserted BATT+ and BATT-? Is the voltage of BATT+ 2.3 V more? Check P1 is not open. Check the battery and around BATT+ and BATT- are not shorted. Check around L3, Q8, BBIC (IC1) .

  • Page 32: Check Battery Charge

    KX-PRW120W/KX-PRWA10W 9.1.3. Check Battery Charge 9.1.3.1. Base Unit Plug in the AC Power source. Charge Handset on Base Unit. Check Charge Circuit of Base Unit. Is the voltage of two charge contacts about 3 V or more? Check Handset. Check Charge Contacts at Base Unit from mechanical point of view.

  • Page 33: Check Link

    KX-PRW120W/KX-PRWA10W 9.1.4. Check Link 9.1.4.1. Base Unit Does Base Unit make link with normal working Base Unit is OK. Check Handset. Handset? Is the voltage of VDD3 about 3.3 V? Check around Power Supply Circuit. Refer to Check Point...(A). Adjust VDD1 voltage to 1.8 V.
  • Page 34 KX-PRW120W/KX-PRWA10W 9.1.4.2. Handset Does Handset make link with Base Unit? Handset is OK. Check Base Unit. (Correct working unit) Is the voltage of "1.8V" about 1.8 V? Adjust 1.8V voltage to 1.8 V. Refer to Check Point...(A). Refer to Check Point...(A).
  • Page 35 KX-PRW120W/KX-PRWA10W Is the Sensitivity Receiver OK? Refer to Check Point...(L). Is the Power RAMP OK? Replace with a new Circuit Board. Refer to Check Point...(M). Cross Reference: Check Point (Handset) (P.43)

  • Page 36: Check The Rf Part

    KX-PRW120W/KX-PRWA10W 9.1.5. Check the RF part 9.1.5.1. Finding out the Defective part 1. Prepare Regular HS (Handset) and Regular BU (Base unit). 2. a. Re-register regular HS (Normal mode) to Base Unit (to be checked). If this operation fails in some ways, the Base Unit is defective.
  • Page 37 KX-PRW120W/KX-PRWA10W 9.1.5.2. RF Check Flowchart Each item (1 ~ 3) of RF Check Flowchart corresponds to Check Table for RF part (P.38). Please refer to the each item. Start Link Control Check DSP interface parts. confirmation signal (RF Block <->DSP on BU/HS P.C.B)
  • Page 38 KX-PRW120W/KX-PRWA10W 9.1.5.3. Check Table for RF part Item BU (Base Unit) Check HS (Handset) Check Link Confirmation Normal 1. Register Regular HS to BU (to be 1. Register HS (to be checked) to Regular checked). HS, BU Mode: [Normal mode] 2.

  • Page 39: Check Handset Transmission

    KX-PRW120W/KX-PRWA10W 9.1.6. Check Handset Transmission Check MIC of Handset. Check CDL TX (HANDSET) in Signal Route. Cross Reference: Signal Route (P.20) 9.1.7. Check Handset Reception Check Handset Speaker in How to check the Handset Speaker or Receiver. Check CDL RX (HANDSET) in Signal Route.

  • Page 40: Bell Reception

    KX-PRW120W/KX-PRWA10W 9.1.9. Bell Reception 9.1.9.1. Base Unit When bell signal is coming, is there bell sound Check around C103, C104, C105, C106, C107, signal at BBIC (IC501:CIDINp, CIDINn)? C108, C109, C110, C111, C112, C123, C124, R101, R102, R103, R104, R105, R106, R107, R108, R109, R110, R111, R112, P101 9.1.9.2.

  • Page 41: Troubleshooting By Symptom (Base Unit And Charger Unit)

    KX-PRW120W/KX-PRWA10W 9.2. Troubleshooting by Symptom (Base Unit and Charger Unit) If your unit has below symptoms, follow the instructions in remedy column. Remedies depend on whether you have DECT tester (*1) or not. Remedy (*2) Symptom You have DECT Tester.
  • Page 42 KX-PRW120W/KX-PRWA10W Items Check Procedure Check or Point Replace Parts (J)* Transmitted Power Remove the Antenna before starting step from 1 to 7. IC501, C891, Confirmation ANTI_TP 1. Configure the DECT tester (CMD60) as follows; C93, C894, <Setting> DA802, Q502, • Test mode: FP C525, R507 •...

  • Page 43: Troubleshooting By Symptom (Handset)

    KX-PRW120W/KX-PRWA10W 9.3. Troubleshooting by Symptom (Handset) If your unit has below symptoms, follow the instructions in remedy column. Remedies depend on whether you have DECT tester (*1) or not. Symptom Remedy (*2) You don’t have DECT Tester. You have DECT Tester.
  • Page 44 KX-PRW120W/KX-PRWA10W Items Check Procedure Check or Point Replace Parts (F)* Battery Monitor Check 1. Apply 2.25 V between BATT+ and BATT-. IC1, P1, R1 2. Execute the command sendchar PAD sendchar LED 0 sendchar CRX 0 1 sendchar AD1 It assumes that the return value is XX.
  • Page 45 KX-PRW120W/KX-PRWA10W Items Check Procedure Check or Point Replace Parts (O) SP phone Audio Check 1. Link to Base which is connected to Line Simulator. C1, C36, C37 and Confirmation 2. Set line voltage to 48 V and line current to 50 mA.

  • Page 46: Troubleshooting For Speakerphone

    KX-PRW120W/KX-PRWA10W 9.3.2. Troubleshooting for Speakerphone When the customer’s telephone line corresponds to the following conditions, and the transmission signal of SP-Phone is interrupted, performing the next set up to a cordless handset will improve it to some extent. Conditions 1. When customer’s line has less line loss.

  • Page 47: Disassembly And Assembly Instructions

    KX-PRW120W/KX-PRWA10W 10 Disassembly and Assembly Instructions 10.1. Disassembly Instructions 10.1.1. Base Unit Remove the 2 screws. Press the cabinet cover. Then, pull up to remove the cabinet cover. Press Press...
  • Page 48 KX-PRW120W/KX-PRWA10W Remove the solders then remove the main P.C.Board. Lower cover Main P.C. board...

  • Page 49: Handset

    KX-PRW120W/KX-PRWA10W 10.1.2. Handset 6 screws Remove the 6 screws. Insert a plastic card. (Ex. Used SIM card etc.) between the cabinet body Cabinet body and the cabinet cover, then pull it along the gap to open the cabinet. Cabinet cover Likewise, open the other side of the cabinet.

  • Page 50: Charger Unit

    KX-PRW120W/KX-PRWA10W 10.1.3. Charger Unit Remove the 2 screws. Press the cabinet cover. Then, pull up to remove the cabinet cover. Press Press Lower cover...

  • Page 51: How To Replace The Handset Lcd

    KX-PRW120W/KX-PRWA10W 10.2. How to Replace the Handset LCD Note: The illustrations are simplified in this page. They may differ from the actual product. Stick the LCD Sheet on to the LCD Unit. LCD unit LCD sheet Stick it along this line.

  • Page 52: Measurements And Adjustments

    KX-PRW120W/KX-PRWA10W 11 Measurements and Adjustments This chapter explains the measuring equipment, the JIG connection, and the PC setting method necessary for the measurement in Troubleshooting Guide (P.29) 11.1. Equipment Required • Digital multi-meter (DMM): it must be able to measure voltage and current.

  • Page 53: How To Install Batch File Into P.c

    KX-PRW120W/KX-PRWA10W 11.2.2. How to install Batch file into P.C. Insert the Batch file CD-ROM into CD-ROM drive and copy PNZZTG**** folder to your PC (example: D drive). <Example for Windows> On your computer, click [Start], select Programs Open an MS-DOS mode window.

  • Page 54: Adjustment Standard (Base Unit)

    KX-PRW120W/KX-PRWA10W 11.3. Adjustment Standard (Base Unit) When connecting the simulator equipment for checking, please refer to below. 11.3.1. Bottom View Digital Volt Meter WIFITX CHARGE- CHARGE+ C351 R142 Q142 LINE_DC R321 C322 R322 R144 WIFIRX C353 F301 R143 C352 ANT1 +5.5V...

  • Page 55: The Setting Method Of Jig (Handset)

    KX-PRW120W/KX-PRWA10W 11.4. The Setting Method of JIG (Handset) This section explains the PC setting to use command required in Check Point (Handset)(P.43). <Preparation> Note: *: If you have the JIG Cable for TCD500 series • Serial JIG cable: PQZZ1CD300E* (PQZZ1CD505E),...

  • Page 56: How To Install Batch File Into P.c

    KX-PRW120W/KX-PRWA10W 11.4.2. How to install Batch file into P.C. Insert the Batch file CD-ROM into CD-ROM drive and copy PNZZTG***** folder to your PC (example: D drive). <Example for Windows> Open an MS-DOS mode window. On your computer, click [Start], select Programs...

  • Page 57: Adjustment Standard (Handset)

    KX-PRW120W/KX-PRWA10W 11.5. Adjustment Standard (Handset) When connecting the simulator equipment for checking, please refer to below. 11.5.1. Component View JTAG LED- JOINT301 BLUE (I)(J)(K)(L) RCV- RCV+ PALp PALn RF-SHIELD LED+ +1.8V Green +3.0V Orange ORANGE Orange SPEAKER – BLUE Blue...

  • Page 58: Things To Do After Replacing Ic Or X'tal

    KX-PRW120W/KX-PRWA10W 11.6. Things to Do after Replacing IC or X'tal If repairing or replacing BBIC (FLASH type), EEPROM and X'tal, it is necessary to download the required data such as Programming data or adjustment data, etc in memory. The set doesn't operate if it is not executed.
  • Page 59 KX-PRW120W/KX-PRWA10W 11.6.1.2. Handset First, operate the PC setting according to The Setting Method of JIG (Handset)(P.55). Then download the appropriate data according to the following procedures. Items How to download/Required adjustment FLASH(IC2) Programming data is stored in memory. 1)Execute ComCommunicator.exe in the ComCommunicator folder.

  • Page 60: Rf Specification

    KX-PRW120W/KX-PRWA10W 11.7. RF Specification 11.7.1. Base Unit Item Value Refer to -. * TX Power 17 dBm ~ 20 dBm Check Point (Base Unit) (J) Frequency Offset ±20 kHz Check Point (Base Unit) (L) RX Sensitivity < 1000 ppm Check Point (Base Unit) (M)

  • Page 61: How To Check The Handset Speaker Or Receiver

    KX-PRW120W/KX-PRWA10W 11.9. How to Check the Handset Speaker or Receiver 1. Prepare the digital voltmeter, and set the selector knob to ohm meter. 2. Put the probes at the speaker terminals as shown below. SPEAKER: Is the value between (+) terminal and (–) terminal about 8 Ω?

  • Page 62: Confirm Wifi Connection After Replacing Ic800

    KX-PRW120W/KX-PRWA10W 11.11. Confirm WiFi connection after replacing IC800 After replacing IC800, please check the below steps for confirming the Fix. 1) Confirm MAC address by OI (Operation Instruction manual) in order to check control signals between BBIC and WiFi module.
  • Page 63 KX-PRW120W/KX-PRWA10W Click “Action” and “Connect”. <Set Frenquency and Power level> [1] Confirm "Boot mode" for servicing. • Type &X 0echo "`bootmode br`" and then press return key. 「 」 」 PC Display ＞&X 0echo "`bootmode br`" ＞BootMode ： 11 • When returning BootMode:11 , goes to Step [2].
  • Page 64 KX-PRW120W/KX-PRWA10W [4] Write ”TX power”. • Type &X 1wifi_set_all_txpower.sh 13 and then press return key. 「 」 」 • Approx 10sec may be taken sometime to OK. PC Display ＞&X 1wifi_set_all_txpower.sh 13 ＞OK [5] Write BootMode for usually using. • Type &X 1bootmode bw 10 and then press return key.

  • Page 65: Miscellaneous

    KX-PRW120W/KX-PRWA10W 12 Miscellaneous 12.1. How to Replace the Flat Package IC Even if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), a soldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.

  • Page 66: How To Install The Ic

    KX-PRW120W/KX-PRWA10W 12.1.3. How to Install the IC 1. Temporarily fix the FLAT PACKAGE IC, soldering the two marked pins. *Check the accuracy of the IC setting with the corresponding soldering foil. 2. Apply flux to all pins of the FLAT PACKAGE IC.

  • Page 67: How To Replace The Shield Case

    KX-PRW120W/KX-PRWA10W 12.2. How to Replace the Shield Case 12.2.1. Preparation • PbF (: Pb free) Solder • Soldering Iron Tip Temperature of 700 °F ± 20 °F (370 °C ± 10 °C) Note: We recommend a 30 to 40 Watt soldering iron. An expert may be able to use a 60 to 80 Watt iron where someone with less experience could overheat and damage the PCB foil.

  • Page 68: How To Install The Shield Case

    KX-PRW120W/KX-PRWA10W 12.2.4. How to Install the Shield Case Note: • If you don’t have special tools (ex. Hot air disordering tool), conduct the following operations. • Shield case’s No. : PNMC1091Z, PNMC1033Z 1. Put the shield case. 2. Solder the surroundings.

  • Page 69: Terminal Guide Of The Ics, Transistors, Diodes And Electrolytic Capacitors

    KX-PRW120W/KX-PRWA10W 12.3. Terminal Guide of the ICs, Transistors, Diodes and Electrolytic Capacitors 12.3.1. Base Unit (Reverse View) (Reverse View) 206 point 8 point PNWI2RW120H C1CB00003611 C3FBLY000150 PNWI1RW120H C0DBEYY00102 PNWI3RW120H Cathode Anode 2SC6054JSL, B1ABDM000001 1SS355 B1ADGE000012, B1ABCE000009, B1ACGP000008 PQVDMD5S 2SA1576S, B1GBCFYY0020...
  • Page 70 KX-PRW120W/KX-PRWA10W Memo...

  • Page 71: Schematic Diagram

    KX-PRW120W/KX-PRWA10W 13 Schematic Diagram 13.1. For Schematic Diagram 13.1.1. Base Unit (Base Unit (Main)) Notes: 1. DC voltage measurements are taken with voltmeter from the negative voltage line. 2. The schematic diagrams may be modified at any time with the development of new technology.

  • Page 72: Base Unit (Main)

    KX-PRW120W/KX-PRWA10W 13.2. Base Unit (Main) RF block ANT1 W 0.2mm ANT1 1st layer LINEIN C894 RX-balun W=0.175mm Wm=0.4mm L=3.6mm Lm=10mm W=0.25mm S=0.125mm L=2mm RF_RXn Rx RF DA802 W=0.25mm *open-stub ANT2 L=2mm SLx2 RF_RXp SHORT W1=0.2mm LINEOUT L1=3.3mm W2=0.7mm L2=5.0mm Pattern...
  • Page 73 KX-PRW120W/KX-PRWA10W Loop Current Q141 REFERENCE LINE_DC 1XX : TEL LINE 3XX : POWER, CHARGE 4XX : MIC, SP Q161 5XX : BBIC 6XX : FLASH, EEPROM, KEY, LCD R141 7XX : FOR DK/BT 8XX : RF, Wi-Fi 100k C163 NC...

  • Page 74: Handset

    KX-PRW120W/KX-PRWA10W 13.3. Handset VBAT Charge Current VBAT BAT+ Battery SOCp Battery BAT- SOCn K1000p CHG+ CHARGE 3.9(3216) D-FLASH Terminal +3.0V +2.8V DO/IO1 CHARGE_CTRL *WP/IO2 CHARGE SPI_DI DI/IO0 SPI_EN SPI_CLK SPI_DO EEPROM SPI_EN +2.8V SPI_EN +3.0V VDDIO_PORT GND1 SPI_DI P0_7/SPI_DI/PWM1 SPI_DO...
  • Page 75 KX-PRW120W/KX-PRWA10W RF BLOCK HAK_CL1 RX-balun Rx RF W=0.175mm 50 ohm line L=3.6mm W=0.25mm L=4mm S=0.125mm L=2mm Test Pattarn for Carbon RF_RXn CARBON_CL1 ANT_TP W=0.25mm L=2mm SHORT RF_RXp W=0.4mm W=0.4mm W=0.3mm W=0.25mm L=15mm L=10mm L=6.5mm L=5mm RF_TXn TX-balun W=0.3mm open-stub L=39.0mm W=0.25mm...
  • Page 76 KX-PRW120W/KX-PRWA10W Memo...

  • Page 77: Printed Circuit Board

    KX-PRW120W/KX-PRWA10W 14 Printed Circuit Board 14.1. Base Unit (Main) 14.1.1. Component View WL ANT1 – C101 D142 D141 C120 C142 C865 C870 C102 R119 – C342 ANT1 C343 WL_ANT2 C866 C894 R701 PNLB2199Z C892 C704 C896 C819 R502 C521 R702...

  • Page 78: Bottom View

    KX-PRW120W/KX-PRWA10W 14.1.2. Bottom View WIFITX CHARGE+ CHARGE- C351 R142 Q142 LINE_DC R321 C322 R322 R144 WIFIRX C353 F301 R143 C352 ANT1 +5.5V C141 R146 R371 D362 C143 C125 R145 GPIO0 R353 C895 R372 R110 R162 R105 C111 C124 Q354 Q352...

  • Page 79: Handset

    KX-PRW120W/KX-PRWA10W 14.2. Handset 14.2.1. Component View JTAG LED- JOINT301 BLUE RCV- RCV+ CKM (H) PALp PALn RF-SHIELD +1.8V(A) LED+ +1.8V LED+(R) +3.0V CP3V(Q) ORANGE CHG(+) SPEAKER – CHG(-) BLUE BAT- BAT+ BATT(-) BATT(+) PNLB2197Z POWER +3.4V +3.4V(+) for signal communication JIG...

  • Page 80: Bottom View

    KX-PRW120W/KX-PRWA10W 14.2.2. Bottom View PNLB2197Z SOFT_C SOFT_A FLASH LED5 LED3 RIGHT LEFT TALK DOWN LED4 LED2 LED1 LED6 SHARP KX-PRWA10 HANDSET BOARD (Bottom View)

  • Page 81: Exploded View And Replacement Parts List

    KX-PRW120W/KX-PRWA10W 15 Exploded View and Replacement Parts List 15.1. Cabinet and Electrical Parts (Base Unit) 15.1.1. KX-PRW120 CUSHION/LCD (No.105) (*7) (*7) PCB1 Ref.No. Figure 2.6 x 8 mm Note: (*7) Attach the cushion LCD (No. 105) to the exact location described above. Refer to Cabinet and Electrical Parts (Handset)

  • Page 82: Cabinet And Electrical Parts (Handset)

    (*1) This cable is fixed by attaching. Refer to How to Replace the Handset LCD (P.51). (*2) The rechargeable Ni-MH battery HHR-4DPA or HHR-4MYA is available through sales route of Panasonic. (*3)(*4) (*5)(*6) Attach the cushion LCD (No. 105) to the exact location described above.

  • Page 83: Cabinet And Electrical Parts (Charger Unit)

    KX-PRW120W/KX-PRWA10W 15.3. Cabinet and Electrical Parts (Charger Unit) CUSHION/LCD (No.105) (*7) 200-1 200-2 200-5 (*7) 200-4 200-6 200-7 200-8 200-9 200-3 Ref.No. Figure 2.6 x 8 mm Note: (*7) Attach the cushion LCD (No. 105) to the exact location described above. Refer to Cabinet and Electrical Parts (Handset)

  • Page 84: Accessories And Packing Materials

    KX-PRW120W/KX-PRWA10W 15.4. Accessories and Packing Materials 15.4.1. KX-PRW120 A3, A4, A5, A6 PAD5(*1) PAD6(*2) PAD4 PAD3(*1) Note: (*1) Pad 3 and Pad 5 is a piece of Pad 4. (*2) This pad is for AC Adaptor.

  • Page 85: Kx-Prwa10

    KX-PRW120W/KX-PRWA10W 15.4.2. KX-PRWA10 A101 A102 P101 P102 P103 PAD5(*2) PAD4 PAD3(*1) Note: (*1) Pad 3 is a piece of Pad 4. (*2) This pad is for AC Adaptor.

  • Page 86: Replacement Part List

    KX-PRW120W/KX-PRWA10W 15.5. Replacement Part List Safety Ref. Part No. Part Name & Description Remarks 1. RTL (Retention Time Limited) PQJJ1T039L JACK, MODULAR Note: K2ECYZ000001 JACK, DC PQHA10023Z RUBBER PARTS, FOOT The “RTL” marking indicates that its Retention Time is CUSHION Limited.

  • Page 87: Handset

    KX-PRW120W/KX-PRWA10W Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R163 ERJ14YJ120U C522 F1H1A105A036 1 R164 ERJ2GEJ272 2.7k C524 ECUE1A104KBQ 0.1 R165 ERJ3GEYJ273 C525 F1H1A105A036 1 R166 ERJ2GEJ822 8.2k C527 F1H1A105A036 1...
  • Page 88 KX-PRW120W/KX-PRWA10W Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks PNJC1026Z BATTERY TERMINAL (CR) ERJ2GEJ303 PNKF1285Z1 CABINET COVER PC+ABS- ERJ2GEJ103 ERJ2GEJ102 PNGG1342Z1 FRAME , METAL ERJ2GEJ152 1.5k PNKK1082Z1 LID, BATTERY PC+ABS-...

  • Page 89: Charger Unit

    200-9 PNKF1295Z1 CABINET COVER PS-HB 15.5.4. Accessories Note: You can download and refer to the Operating Instructions (Instruction book) on TSN Server. 15.5.4.1. KX-PRW120W Safety Ref. Part No. Part Name & Description Remarks PNLV2360Z AC ADAPTOR (for Base Unit) PQJA10075Z...

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