Page 2 - CONTENTS
CONTENTS 1. SCHEMATIC DIAGRAM 1-1. MAIN PCB .................................................................................................................. 1 1-2. KEY MATRIX 1 .......................................................................................................... 2 1-3. KEY MAT...
Page 3 - SCHEMATIC DIAGRAM; Refer to the following matrix.
— 1 — 1. SCHEMATIC DIAGRAM 1-1. MAIN PCB Note: There are two kind of PCBs. Refer to the following matrix. TYPE LSI3 C14 R3 R4 R11 A O O O — O B — — — O — O : Mounted — : Not mounted.
Page 5 - FG; To Display
— 3 — 1-3. KEY MATRIX 2 M– M+ MR % ' MC ÷ 9 C AC x 6 8 7 – 3 5 4 0 + = 2 1 . CODE:22 CODE:17 CODE:16 CODE:23 CODE:21 CODE:18 CODE:13 CODE:12 CODE:19 CODE:20 CODE:14 CODE:09 CODE:08 CODE:15 CODE:10 CODE:05 CODE:04 CODE:11 CODE:06 CODE:00 CODE:07 CODE:01 CODE:03 CODE:02 KY1 KY2 KY3 KY4 KY5 KY6 KY7 KY8...
Page 6 - SPECIFICATIONS; LSI; Power Switch; OFF
— 5 — 2. SPECIFICATIONS Display element: 16-column × 4-line LCD Memory capacity: 128 kB (126428 bytes) Main component: LSI Power supply: 2 lithium batteries (CR2032) Power consumption: 0.05 W Battery life*: Approximately 350 hours continuous operation in Telephone DirectoryApproximately 300 hours re...
Page 7 - REPLACING THE BATTERIES; CR2032 lithium batteries only.
— 6 — 3. REPLACING THE BATTERIES 1. Loosen the screw on the back of the SF-5300B thatholds the battery compartment cover in place, andremove the cover. 2. Loosen the screw that secures one of the two batteryholders in place and remove the battery holder. Caution:Be sure to remove only one battery at...
Page 8 - RESETTING THE UNIT
— 7 — 4. RESETTING THE UNIT The following procedures erase all data stored in the memory of the SF-5300B. 1. Turn on the unit and press the RESET button with a thin, pointed object. 2. Press Y to reset the memory and delete all data, or N to abort the reset operation without deleting anything.Follow...
Page 9 - SAVING DATA
— 8 — 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. 1 Setting up the receiving unit: 1. Do the reset operation. 2. Enter the calculator...
Page 10 - DATA
— 9 — 3. Press , , and twice. 4. Press to select DATA COMM. 5. Press to select RECEIVE. * If the password isn't registered in the SF-5300B,the display shows X instead of "1." CAPS 1* TO SECRET AREA2 ALL DELETE 3 LABEL EDIT 4 DATA COMM 1 SEND 2 RECEIVE 3 SET UP PAR. CAPS DATA RECEIVE OK TO ST...
Page 13 - LSI PIN FUNCTIONS
— 12 — Pin No. Name I/O Description 1 ~ 5 C0 ~ 4 Out Common signal for display 6 GND In GND 0 V 7,8 BZ1,2 Out Buzzer terminal 9 VDD In Power supply terminal (+5.3 V) 10 CSRA1 Out Chip enable signal for LSI2 11 CSRA2 Out Chip enable signal for LSI3 12 CSROM Out Chip enable signal (Not used) 13 WEB Ou...
Page 14 - VDD
— 13 — Pin No. Name I/O Description 64,65 OSC I/O 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 68 NC - Not used 72 INTO In Low battery dete...
Page 15 - TROUBLESHOOTING; No power on
— 14 — 7. TROUBLESHOOTING START Is the display contrast adjustment OK? N Y N Y Y N Does the unit sound with each key entry? Y N N Y N N Y Y Are the capacitors C8, C9, C10, C11,C12, and C13 OK? 1 Replace C8, C9, C10, C11, C12, orC13. Adjust the display contrast. Replace the batteries. Check another f...
Page 16 - No key input
— 15 — N Y N Y N Y Is Pin 13 of LSI1 sending the signal? N Y Is the soldering of LSI2 or LSI3 poor? Y N Is the soldering of LSI1 poor? N Replace LSI1. Y START Is Pin 1 of DET1 5.2 V? Replace DET1. Replace LSI1. Replace LSI1. Resolder. Is Pin 11 of LSI1 sending the signal? Replace LSI1, LSI2. 1 Does ...
Page 17 - High current consumption
— 16 — No/Erratic display N Y Is input Pin 2 of REG1 6 V? N Adjust the contact and cleanthe battery springs. Y Is output Pin 3 of REG1 5.3 V? N Y N Y Are the voltages of V1, V2, V3, and V4strong enough? V1: 1.3 VV2: 2.5 VV3: 2.7 VV4: 3.9 V Is the soldering of LSI1 poor? N Replace LSI1. Y Resolder. H...
Page 18 - DIAGNOSTICS
— 17 — Notes: 1. Be sure to transfer data to another SF-5300B unit before enteringthe diagnostic mode, because the data will be changed by enteringthe diagnostic mode. 2. The shorting pads shown in the following illustration are covered by ablind label. 3. To exit the diagnostic mode, press the rese...
Page 19 - Display Check
— 18 — Operation Display Note Display check To return to theTEST MENU,press . Press 1 on the TEST MENU. Display Check 1 ESC 2 3 4 5 DISP 4 RVS. 1 WHITE 5 FRAME 2 BLACK 6 DOT4 3 CHECK. 7 TIME Frame display All dots displayed Checker displayed Reverse checkerdisplay No display , ACC CAPS SHIFT SEARCH
Page 20 - Memory Check
— 19 — Operation Display Note Check to see iftimer is working. 7 Shows dots atcorners. Memory Check The functions of the numbered items on the display include: 1. Writes the test pattern in the ROM to the RAM area. (Test pattern: Incremental order 00,01, and so on) 2. Compares the test pattern with ...
Page 21 - Key Check
— 20 — Operation Display Note (After a few seconds) MEMORY 3 WR24 READ2 1 WR1 5 DUMP 2 READ1 6 CHKSUM EXECUTING!! 2( or 4 ) COMPLETE!! 128KB DATA ERROR!! ADDRESS CORR RAMXXXX XX XX KEY 1 RANDOM2 AUTO Press 3 on the TEST MENU. Key check To return to theTEST MENU,press . No display RAM error If the &#...
Page 22 - Buzzer Check
— 21 — MC MR M– M+AC , ... % 7 , ... ÷ 4 , ... x 1 , ... –0 , ... + ON OFFEXPENSE , ... DISP CHNGREMINDER , ... DEL ← ↑ ↓ → ESC , ... ( ) FUNCTION , ... SHIFT , ...SHIFT CAPS , ... SET Operation Display Note Operation Display Note Buzzer Check 00 01 02 03 04 ............... ............... 56 57 TES...
Page 23 - ASSEMBLY VIEW
9. ASSEMBLY VIEW — 23 — 16 14 13 11 15 12 10 9 7 8 17 18 22 19 20 1 21 4 3 2 23 24 25 6 5 37 36 6-1 35 34 6-2 33 32 31 30 29 28 26 27 39 38 39 38 39 39 38 41 41 41 40 42
