(with price) SF-4300B(LX-588) MAR.
CONTENTS 1. SCHEMATIC DIAGRAM .................................................................................................... 1 1-1. MAIN PCB .................................................................................................................. 1 1-2. KEY MATRIX ............................................................................................................. 2 2. SPECIFICATIONS ...................................................................................................
1. SCHEMATIC DIAGRAM 1-1.
1-2.
2. SPECIFICATIONS Data storage: Storage and recall of telephone, memo, schedule, reminder data; calendar display; secret area; editing; memory status display. Clock: World time; reminder alarm; schedule alarm; daily alarm; accuracy under normal temperatures: ±3 seconds average. Calculation: 10-digit arithmetic calculations; arithmetic constants (+, –, ×, ÷); independent memory; percentages; square roots; 20-digit approximations; date calculations; other mixed calculations.
Memo: Approximately 1290, 20-character memos Schedule Keeper: Approximately 890, under the following conditions: 1 item per day, 20 characters per item 30 days per month Starting time specified, alarm time set Approximately 1020, under the following conditions: 1 item per day, 20 characters per item 30 days per month Starting time specified, no alarm time Reminder: Approximately 1680, under the following conditions: Approximately 1900, under the following conditions: —4— 10 characters per item Alarm time
3. TO REPLACE THE BATTERIES Screw 1) Loosen the screw on the back of the SF-4300B that holds the battery compartment cover in place, and remove the cover. 2) 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. Otherwise, you will lose all data stored in memory. 3) Replace the old battery with a new one, making sure that the positive (+) side of the new battery is facing up (so you can see it).
4. DATA TRANSFER SF-4300B can transfer customers data to other SF-4300B 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. 1) Turn off the power switch and connect the two units using the cable (SB-60/62) as shown in the drawing. SB-60/62 accessory cable 2) Turn on the power switch of each machine. 3) The slave machine must be set the date of Feb.
Setting up for Data Communications The following procedures describe what you should do to set up for data communications between two 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-4300B to receive data. By following these instructions carefully, you can be ensured of successful communications every time. To connect two SF Units 1. 2. 3.
5. If the units have another condition, reset as above. • To change the parameters 1. 2. 3. SET 5) Use the and — cursor keys to change the selected parameter on the display. Use the and cursor keys to change the high-lighted setting of the currently selected parameter. Press SET to store them in memory. Set up the slave machine 1. While an initial screen is displayed, press FUNC twice to display the second function menu.
2. Press 4 to select DATA COMM. 4 1 2 3 SEND RECEIVE SET UP CAPS 3. Press 1 to select SEND. 1 1 2 3 ONE ITEM MODE DATA ALL DATA - SEND - CAPS 4. Press 3 to select ALL DATA. 3 SEND ALL DATA? SET/ESC CAPS 5. Press SET to start the send operation or ESC to abort the operation without sending anything. SET or ESC DATA SENDING TO STOP PRESS (ESC) CAPS • Data is send in the sequence: Telephone Directory, Memo Mode, Reminder Mode, Schedule Keeper, Calendar.
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. To reset the SF Unit's memory RESET button RESET 1. Switch on power and press the RESET button with a thin, pointed object.
Sound: Character input: Schedule alarm → ON Reminder Alarm → ON Daily alarm → OFF Key → ON CAPS 5-2. TO ADJUST THE DISPLAY CONTRAST 1 Enter the Telephone Directory Mode. • You could enter any mode except the Calculator mode here. 2 Press SHIFT and confirm that the "S" indicator is on the display. 3 Press CONT. 4 Use the and keys to adjust the contrast. ✻✻✻✻ CONTRAST ✻✻✻✻ (LIGHTER) (DARKER) CAPS 5 After you are finished, press ESC to clear the contrast adjustment display. 5-3.
6. LSI, IC (Pin function) 6-1. CPU No.1 Pin No. 1~5 Signal C0 ~ 4 I/O Out Function Common Signal for display 6 GND In GND /0[V] 7,8 BZ1,2 Out 9 VDD In 10 CSRA1 Out Chip enable signal (Not used) 11 CSRA2 Out Chip enable signal for RAM 12 CSROM Out Chip enable signal (Not used) 13 WEB Out Write enable signal for RAM Buzzer terminal Power supply/5.
Pin No. 64,65 67,69~71 Signal I/O OSC I/O I/O V1 ~ 4 Function Clock terminal (DT-26S) Voltage for LCD driver OFF: 0[V] 68 NC - Not used 72 INTO In Low battery detection 73 STNT - GND/0[V] 74 VLCD In Power supply/5.3[V] ON: 75 ~ 171 S0 ~ 95 Out Segment signal for display 172 ~ 199 C5 ~ 32 Out Common signal for display 168,200 NC - V1: 0.64(Light) ~ 1.29(Dark)[V] V2: 1.29 ~ 2.56 [V] V3: 3.99 ~ 2.71 [V] V4: 4.64 ~ 3.99 [V] INTO<5.
6-3. VOLTAGE REGULATOR: S-81253SGUP (REG1) Output Voltage (Vout) : 5.3V ± 5% VIN 2 3 OUT RA + – RI RB VREF 1 2 3 GND Vin Vout GND 1 6-4. VOLTAGE DETECTOR: S-80752AN (DET1) Detection Voltage(–VDET) : 5.2V ± 2.5% [5.07V (MIN) ~ 5.33V (MAX)] 2 VDD 1 OUT 1 2 3 Vout Vin GND 3 VSS VDD +VDET –VDET VDD VDD VSS — 14 — Input voltage Output voltage >5.2V 5V <5.
7. TROUBLESHOOTING < No power on > N Adjust contrast Is contrast adjustment OK? Y N Replace batteries Is power of batteries enough? Y Y Does display appear by pressing Reset button? Check other function N Y Does it sound by key enter? Refer to N Do batteries make positive contact with the battery springs? N Adjust contact and clean battery spring Y Y Is 3-pin of S-81253 (REG1) 5.
1 N Replace DET1 Is 1-Pin of S-80752AN (DET 1) 5[V]? Y N Is 11-Pin of CPU (LSI 1) sending the signal? Replace CPU (LSI1) Y N Is 13-Pin of CPU (LSI1) sending the signal? Replace CPU (LSI1) Y N Does RAM make positive contact with PCB? Resolder RAM (LSI3) Y Replace RAM (LSI3) or CPU (LSI1) < No key input > Does key make positive contact with PCB Ass’y N Replace PCB Y Does CPU make positive contact with PCB? N Y Replace CPU (LSI1) — 16 — Resolder CPU (LSI1)
< No/Erratic display > N Is input 2-Pin of S-81253 (REG1) 6[V]? Check batteries Y N Is output 3-Pin of S-81253 (REG1) 5.3[V]? Replace REG1 Y * Are voltage of several capacitors enough? V1: V2: V3: V4: N 1.3 [V] 2.5 [V] 2.7 [V] 3.9 [V] Y Check solder part of C6, C7, C8, C9, C10 or replace.
8. HARD CHECK No. OPERATION DISPLAY 1 Turn on while short the short pad (KEY61). SELF TEST PROG. PRESS SEARCH QUIT BY OFF CASIO AUG. 1993 SEARCH 3 Main menu 1 DISP MEMORY KEY BUZZER I/F DISP 1 WHITE 2 BLACK 3 CHECK. 4 5 6 7 RVS. FRAME DOT 4 TIME Display check 1 4 No display 2 5 All dots display 3 6 Checker display 4 7 The short pad is located behind the tape I.
No. OPERATION DISPLAY NOTE 5 8 FRAME 6 9 Dots appear at 4 corners. TIME DISPLAY 10 7 00:00:00 ESC TEST MENU 2 3 4 5 11 1 DISP 12 3 13 2 HOME/WORLD MENU OFF ON INS DEL TIME/DATA DISP CHNG 14 Check if timer is working. KEY MEMORY KEY BUZZER EXT 1 RANDOM 2 AUTO Key check No display 00 01 02 ............... ESC ......................... FUNC ...................... P CAPS ...................... SET SHIFT ...................... SPACE — 19 — 03 56 04 57 ...............
No. OPERATION SEARCH 15 DISPLAY TEST MENU 2 3 4 5 1 DISP 4 BUZZER MEMORY KEY BUZZER EXT 1 BEEP 2 ALARM1 3 ALARM2 16 NOTE Buzzer check 2 EXECUTING!! 17 ESC BUZZER 1 BEEP 2 ALARM1 3 ALARM2 ESC TEST MENU 2 3 4 5 MEMORY KEY BUZZER EXT 3 4 5 6 WR2 READ2 DUMP CHKSUM 18 19 1 DISP 2 MEMORY 1 WR1 2 READ1 20 1 21 WRITE1 — 20 — Check the alarm 1 sound.
No. OPERATION (After few seconds) 22 DISPLAY MEMORY 1 WR1 2 READ1 2 3 4 5 6 NOTE WR2 READ2 DUMP CHKSUM EXECUTING 23 COMPLETE 32KB 24 ESC ESC 25 TEST MENU 1 DISP 26 Press "RESET" key. — 21 — 2 3 4 5 MEMORY KEY BUZZER EXT Check sound. If RAM has defect, error message will be appeared.
— 23 — 9.
10. PARTS LIST N Item Code No. N N N N N LSI1 LSI3 Q1 DET1 REG1 C1~4 C5,6 C7 C8,10,12 C9,11 D1 D2 R4,20 R5 R6 R7 R8,9 R10 R13 X1 JC1 1 2 3 4 6409 2760 2011 2849 2259 0959 2105 3297 2105 3290 2896 1400 2845 2534 2845 2548 2845 1540 2805 0275 2390 2128 2390 0364 2797 2051 2791 1170 2797 0637 6510 4770 2797 1078 2791 1871 2797 2520 7110 0642 3501 6538 3335 4606 6409 6270 6409 6300 6409 6310 N 5 6409 6090 PCB ass'y DB20XX0300V*1 (This ass'y contains the above parts as its element.
N Item N N N 27 28 29 Code No. Parts Name 6512 0980 Screw 6409 6240 Hard case 6409 6250 Label Notes: N M R Q – – – – FOB Japan N.R.
MA0600741A
