Casio SF-5500B Service Manual & Parts List
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Casio SF-5500B Service Manual & Parts List

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SF-5500B
(LX-547E/F)
FEB. 1995
SF-5500B
R

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Summary of Contents for Casio SF-5500B

  • Page 1 (with price) SF-5500B (LX-547E/F) FEB. 1995 SF-5500B...

  • Page 2: Table Of Contents

    CONTENTS 1. SCHEMATIC DIAGRAM 1-1. MAIN PCB ........................1 1-2. KEY MATRIX 1 ......................2 1-3. KEY MATRIX 2 ......................3 2. SPECIFICATIONS ......................5 3. REPLACING THE BATTERIES ..................6 4. RESETTING THE UNIT ....................7 5. SAVING DATA ........................8 6.

  • Page 3: Schematic Diagram

    1. SCHEMATIC DIAGRAM 1-1. MAIN PCB Note: There are two kind of PCBs. Refer to the following matrix. TYPE LSI3 — — — — — O: Mounted —: Not mounted. — 1 —...

  • Page 4: Key Matrix 1

    1-2. KEY MATRIX 1 — 2 —...

  • Page 5: Key Matrix 2

    1-3. KEY MATRIX 2 ÷ M– – CODE:02 CODE:03 CODE:07 CODE:11 CODE:15 CODE:19 CODE:23 CODE:01 CODE:06 CODE:10 CODE:14 CODE:18 CODE:22 CODE:00 CODE:05 CODE:09 CODE:13 CODE:17 CODE:04 CODE:08 CODE:12 CODE:16 CODE:20 CODE:21 — 3 —...

  • Page 6: Specifications

    2. SPECIFICATIONS 16-column × 4-line LCD Display element: Memory capacity: 128 kB (126428 bytes) Main component: Power supply: 2 lithium batteries (CR2032) Power consumption: 0.05 W Battery life*: Approximately 350 hours continuous operation in Telephone Directory Approximately 300 hours repeating one minute of input and 10 minutes of display in Telephone Directory Approximately 12 months for memory backup Auto power off:...

  • Page 7: Replacing The Batteries

    3. REPLACING THE BATTERIES Loosen the screw on the back of the SF-5300B that holds the battery compartment cover in place, and remove the cover. Screw Loosen the screw that secures one of the two battery holders in place and remove the battery holder. RESET Caution:Be sure to remove only one battery at a time.

  • Page 8: Resetting The Unit

    4. RESETTING THE UNIT The following procedures erase all data stored in the memory of the SF-5300B. RESET Button RESET 1. Turn on the unit and press the RESET button with a thin, pointed object. ALL DATA CLEAR! CAPS 2. Press Y to reset the memory and delete all data, or N to abort the reset operation without deleting anything.

  • Page 9: Saving Data

    5. SAVING DATA The SF-5300B can transfer the customer's data (both the open and secret areas) to another SF-5300B. • Turn off both the transmitting and receiving units and connect them using the SB-60/62 cable. SB-60/62 1 Setting up the receiving unit: 1.
  • Page 10 MENU FUNC Press , and twice. * If the password isn't 1* TO SECRET AREA registered in the SF-5300B, the display shows instead ALL DELETE of "1." LABEL EDIT DATA COMM CAPS Press to select DATA COMM. SEND RECEIVE SET UP PAR. CAPS Press to select RECEIVE.
  • Page 11 2 Setting up the transmitting unit: Set the hardware parameters as follows: Parity: None Bit length: 7 BPS: 9600 Press , and MENU Press twice. FUNC * If the password isn't registered in the SF-5300B, 1* TO SECRET AREA the display shows instead ALL DELETE of "1."...
  • Page 12 Press to select SEND. ONE ITEM MODE DATA ALL DATA - SEND - CAPS Press to select ALL DATA. SEND ALL DATA? SET/ESC CAPS Press to start data transmission or to abort the operation without sending anything. SENDING DATA TO STOP PRESS (ESC) CAPS •...

  • Page 13: Lsi Pin Functions

    6. LSI PIN FUNCTIONS 6-1. CPU: LSI1 No.1 Pin No. Name Description 1 ~ 5 C0 ~ 4 Common signal for display GND 0 V BZ1,2 Buzzer terminal Power supply terminal (+5.3 V) CSRA1 Chip enable signal for LSI2 CSRA2 Chip enable signal for LSI3 CSROM Chip enable signal (Not used)

  • Page 14: Voltage Regulator:reg1 (S-81253)

    Pin No. Name Description 64,65 OSC I/O Clock terminal 67,69~71 V1 ~ 4 Voltage for LCD drive OFF: 0 V ON–V1: 0.64 Minimum ~ 1.29 Maximum V V2: 1.29 Minimum ~ 2.56 Maximum V V3: 3.99 Minimum ~ 2.71 Maximum V V4: 4.64 Minimum ~ 3.99 Maximum V Not used INTO...

  • Page 15: Troubleshooting

    7. TROUBLESHOOTING No power on START Adjust the display contrast. Is the display contrast adjustment OK? Replace the batteries. Are the power of batteries strong enough? Does the display appear by pressing Check another function. the reset button? Does the unit sound with each key entry? Refer to "No/Erratic Display."...
  • Page 16 Is Pin 1 of DET1 5.2 V? Replace DET1. Is Pin 11 of LSI1 sending the signal? Replace LSI1. Is Pin 13 of LSI1 sending the signal? Replace LSI1. Is the soldering of LSI2 or LSI3 poor? Resolder. Replace LSI1, LSI2. No key input START Does the rubber key contact make positive...
  • Page 17 No/Erratic display START Replace the batteries. Are the power of batteries strong enough? Adjust the contact and clean Is input Pin 2 of REG1 6 V? the battery springs. Replace REG1. Is output Pin 3 of REG1 5.3 V? Are the voltages of V1, V2, V3, and V4 strong enough? V1: 1.3 V Replace C1, C2, C3, or C4.

  • Page 18: Diagnostics

    To enter the diagnostic mode: Slide the battery switch to the up position. Press while shorting the shorting pads. SELF TEST PROG. PRESS SEARCH QUIT BY OFF CASIO APR 1994 SEARCH Press TEST 2 MEMORY MENU 3 KEY 4 BUZZER...
  • Page 19 Display Check Operation Display Note Display check Press 1 on the TEST MENU. DISP 4 RVS. 1 WHITE 5 FRAME To return to the 2 BLACK 6 DOT4 TEST MENU, 3 CHECK. 7 TIME press No display All dots displayed Checker displayed ACC CAPS SHIFT SEARCH...
  • Page 20 Operation Display Note Shows dots at corners. TIME DISPLAY Check to see if timer is working. 00:00:XX TEST 2 MEMORY MENU 3 KEY 4 BUZZER 1 DISP 5 EXT Memory Check The functions of the numbered items on the display include: Writes the test pattern in the ROM to the RAM area.
  • Page 21 Operation Display Note (After a few seconds) MEMORY 3 WR2 4 READ2 1 WR1 5 DUMP 2 READ1 6 CHKSUM EXECUTING!! ( or 4 ) COMPLETE!! 128KB RAM error DATA ERROR!! ADDRESS CORR If the "DATA ERROR" XXXX is appeared, check LSI2.
  • Page 22 Operation Display Note Check that the key 00 01 02 03 04 ....MC MR M– M+ number appears on ÷ AC , ... % 7 , ... the display....56 4 , ... x 1 , ... – 0 , ...

  • Page 23: Assembly View

    9. ASSEMBLY VIEW...

  • Page 24: Parts List

    EQU : U.S.A FQ : B.O.S.S. 10. PARTS LIST EQL : OTHERS FOB Japan Item Code No. Parts Name Specification Quantity N.R.Yen EQU FQ EQL Unit Price DISPLAY PCB ASS'Y 6414 6150 Display PCB ass'y DB22BX3F00M*1 3,360 C1~C4,C7, 2845 1540 Chip capacitor MCH212F104ZK C8,C13,C14 C5, C6...
  • Page 25 FOB Japan Item Code No. Parts Name Specification Quantity N.R.Yen EQU FQ EQL Unit Price 6412 3160 Heat seal FX201P50209 6412 3150 PCB DADB22XX309 6414 6040 Lower case (DIS) FABDB222052 6414 6170 Lower case (DIS) FABDB222061 6409 6120 Battery holder ECDB1011108 6409 6210 Battery change label HGC00001102...
  • Page 26 MA0400651A...

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Lx-547e/f

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