Casio SF-4400 Service Manual & Parts List
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Casio SF-4400 Service Manual & Parts List

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(with price)
SF-4400
(LX-594A)
SF-4600B
(LX-594E/F)
JUN. 1994
SF-4400
SF-4600B
R

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Summary of Contents for Casio SF-4400

  • Page 1 (with price) SF-4400 (LX-594A) SF-4600B (LX-594E/F) JUN. 1994 SF-4400 SF-4600B...

  • Page 2: Table Of Contents

    CONTENTS SCHEMATIC DIAGRAM ....................1 1-1. MAIN PCB ........................1 1-2. KEY MATRIX ......................2 SPECIFICATIONS ......................3 TO REPLACE THE BATTERIES ..................5 DATA TRANSFER ......................6 OPERATION REFERENCE ..................... 10 5-1. RESET OPERATION ....................10 5-2. TO ADJUST THE DISPLAY CONTRAST ............... 11 5-3.

  • Page 3: Schematic Diagram

    1. SCHEMATIC DIAGRAM 1-1. MAIN PCB NOTE: 1. LSI4, R3, R11 are not mounted. 2. R1, R2 are not used. — 1 —...

  • Page 4: Key Matrix

    1-2. KEY MATRIX — 2 —...

  • Page 5: Specifications

    10.0 Storage Capacity: The 64K bytes memory capacity (32K bytes for SF-4400) includes a 61347 bytes user area (28579 bytes for SF-4400). The following shows examples of what this means for the storage of data in each mode. Telephone Directory:...
  • Page 6 Approximately 1460 (680 for SF-4400), under the following conditions: 8-character name 10-character telephone number 20-character address Memo: Approximately 2780 (1290 for SF-4400), 20-character memos. Schedule Keeper: Approximately 1910 (890 for SF-4400), under the following conditions: 1 item per day, 20 characters per item...

  • Page 7: To Replace The Batteries

    TO REPLACE THE BATTERIES Screw 1) Loosen the screw on the back of the SF-4400/4600B that holds the battery compartment cover in place, and remove the cover. Loosen the screw that secures one of the two battery holders in place and remove the battery holder.

  • Page 8: Data Transfer

    4. DATA TRANSFER SF-4400/SF-4600B can transfer customers data to other SF-4400/SF4600B with memory protection only when replacing the LCD or the outer case. How to transfer the data. * Before connecting the cable (SB-60/62), be sure to reset the slave machine to clear all data.
  • Page 9 SF Units or between an SF Unit and a personal computer. In addition to hardware connections, it details how to set up the communications parameters and how to set up the SF-4400/4600B to receive data. By following these instructions carefully, you can be ensured of successful communications every time.
  • Page 10 If the units have another condition, reset as above. • To change the parameters Use the and — cursor keys to change the selected parameter on the display. Use the cursor keys to change the high-lighted setting of the currently selected parameter.
  • Page 11 Press 4 to select DATA COMM. SEND RECEIVE SET UP CAPS Press 1 to select SEND. ONE ITEM MODE DATA ALL DATA - SEND - CAPS Press 3 to select ALL DATA. SEND ALL DATA? SET/ESC CAPS Press SET to start the send operation or ESC to abort the operation without sending anything. SET or ESC SENDING DATA...

  • Page 12: Operation Reference

    5. OPERATION REFERENCE 5-1. RESET OPERATION The following procedure erases all data stored in the memory of the SF Unit. Perform the following operation only when you want to delete all data and initialize the settings of the SF Unit. Remember-you should always keep copies of important data by writing it down, by transferring it to a personal computer or other SF Unit.

  • Page 13: To Adjust The Display Contrast

    5 After you are finished, press ESC to clear the contrast adjustment display. 5-3. TO CHECK THE MEMORY STATUS Hold down SHIFT CAPA to display a screen that shows the current memory status. To clear the memory status display, release CAPA. (SF-4400) CAPACITY Remaining memory...

  • Page 14: Lsi, Ic (Pin Function)

    6. LSI, IC (Pin function) 6-1. CPU “ No.1 Pin No. Signal Function 1 ~ 5 C0 ~ 4 Common Signal for display GND /0[V] BZ1,2 Buzzer terminal Power supply/5.3[V] CSRA1 Chip enable signal (Not used) CSRA2 Chip enable signal for RAM CSROM Chip enable signal (Not used) Write enable signal for RAM...

  • Page 15: Ram: Μ Pd43256G-101215Ll (Lsi2,Lsi3)

    Pin No. Signal Function 64,65 OSC I/O Clock terminal (DT-26S) 67,69~71 V1 ~ 4 Voltage for LCD driver OFF: 0[V] 0.64(Light) ~ 1.29(Dark)[V] 1.29 ~ 2.56 3.99 ~ 2.71 4.64 ~ 3.99 Not used INTO Low battery detection INTO<5.2[V]=> No power on STNT VDD/5.3[V] VLCD...

  • Page 16: Voltage Regulator:s-81253Sgup (Reg1)

    6-3. VOLTAGE REGULATOR: S-81253SGUP (REG1) Output Voltage (Vout) : 5.3V ± 5% – Vout 6-4. VOLTAGE DETECTOR: S-80752AN (DET1) ) : 5.2V ± 2.5% Detection Voltage(–V [5.07V (MIN) ~ 5.33V (MAX)] Vout Input voltage Output voltage –V >5.2V <5.2V — 14 —...

  • Page 17: Troubleshooting

    7. TROUBLESHOOTING < No power on > Adjust contrast Is contrast adjustment OK? Replace batteries Is power of batteries enough? Does display appear by pressing Check other function Reset button? Does it sound by key enter? Refer to <No/Erratic display> Adjust contact and clean battery Do batteries make positive contact with spring...
  • Page 18 Replace DET1 Is 1-Pin of S-80752AN (DET 1) 5[V]? Is 11-Pin of CPU (LSI 1) sending the Replace CPU (LSI1) signal? Is 13-Pin of CPU (LSI1) sending Replace CPU (LSI1) the signal? Does RAM make positive contact with Resolder RAM (LSI2 or LSI3) PCB? Replace RAM (LSI2 or LSI3) or CPU (LSI1) <...
  • Page 19 < No/Erratic display > Is input 2-Pin of S-81253 (REG1) 6[V]? Check batteries Is output 3-Pin of S-81253 (REG1) Replace REG1 5.3[V]? Are voltage of several capacitors enough? V1: 1.3 [V] Check solder part of C1, C2, C3, V2: 2.5 [V] C4, C7 or replace.

  • Page 20: Hard Check

    SELF TEST PROG. The short pad is Turn on while short the short pad PRESS SEARCH located behind the (KEY61). QUIT BY OFF tape I. CASIO SEP. 1993 TEST 2 MEMORY Main menu SEARCH MENU 3 KEY 4 BUZZER 1 DISP...
  • Page 21 OPERATION DISPLAY NOTE FRAME Dots appear at 4 corners. TIME DISPLAY Check if timer is working. 00:00:00 TEST 2 MEMORY MENU 3 KEY 4 BUZZER 1 DISP 5 EXT 1 RANDOM Key check 2 AUTO No display • Check the key No....
  • Page 22 OPERATION DISPLAY NOTE SEARCH TEST 2 MEMORY MENU 3 KEY 4 BUZZER 1 DISP 5 EXT BUZZER 1 BEEP Buzzer check 2 ALARM1 3 ALARM2 Check the alarm 1 EXECUTING!! sound. BUZZER 1 BEEP 2 ALARM1 3 ALARM2 TEST 2 MEMORY MENU 3 KEY 4 BUZZER...
  • Page 23 OPERATION DISPLAY NOTE (After few seconds) MEMORY 3 WR2 4 READ2 1 WR1 5 DUMP 2 READ1 6 CHKSUM EXECUTING Check sound. COMPLETE If RAM has defect, 32KB error message will (64KB) be appered. ESC ESC TEST 2 MEMORY MENU 3 KEY 4 BUZZER 1 DISP...

  • Page 24: Assembly View

    9. ASSEMBLY VIEW...

  • Page 25: Parts List

    44 : SF-4400 PARTS LIST 46 : SF-4600B FOB Japan Item Code No. Parts Name Specification Q'ty N.R.Yen 44 46 Unit Price 10-1. PCB unit LSI1 6409 2760 COB LSI C312133*1 1,010 LSI2 2011 2849 LSI (RAM) uPD43256AGU-1012LL LSI3 2011 2849 LSI (RAM)
  • Page 26 FOB Japan Item Code No. Parts Name Specification Q'ty N.R.Yen 44 46 Unit Price 6411 6030 Mask tape HGC00001501 1 20 6410 9700 Rubber key LADB1010007 6411 6050 Upper case FAADB100007 6410 9720 Upper case FAADB100104 6510 4290 Screw MAB80002303 1 20 6510 4310 Screw MAA80006311...
  • Page 27 FOB Japan Item Code No. Parts Name Specification Q'ty N.R.Yen 44 46 Unit Price 6408 9060 Key top set A-L594AM C111159-2 6408 9070 Key top set A-L594EM C111159-3 6408 9040 Key top set B-L594AM C311917-2 0 10 6408 9050 Key top set B-L594EM C311917-3 1 10 6408 9080 Key top set C-L594AM...
  • Page 28 MA0900741A...

This manual is also suitable for:

Sf-4600bLx-594aLx-594eLx-594f

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