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SF-4400
Casio SF-4400 Service Manual & Parts List
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— 21 —
No.
OPERATION
DISPLAY
NOTE
22
(After few seconds)
MEMORY
3
WR2
4
READ2
1
WR1
5
DUMP
2
READ1
6
CHKSUM
EXECUTING
COMPLETE
32KB
(64KB)
2
TEST
2
MEMORY
MENU
3
KEY
4
BUZZER
1
DISP
5
EXT
ESC
ESC
23
24
Check sound.
If RAM has defect,
error message will
be appered.
Press "RESET" key.
26
25
22
24
Table of Contents
Default Chapter
2
Table of Contents
2
1 Schematic Diagram
3
Main Pcb
3
Key Matrix
4
2 Specifications
5
3 To Replace the Batteries
7
4 Data Transfer
8
5 Operation Reference
12
Reset Operation
12
To Adjust the Display Contrast
13
To Check the Memory Status
13
The Sound Menu
13
6 LSI, IC (Pin Function)
14
Cpu
14
RAM: Μ PD43256G-101215LL (LSI2,LSI3)
15
Voltage Regulator:s-81253Sgup (Reg1)
16
Voltage Detector:s-80752An (Det1)
16
7 Troubleshooting
17
8 Hard Check
20
9 Assembly View
24
10 Parts List
25
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Owner's Manual
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Casio SF-4400 Specifications
General
Brand
Casio
Model
SF-4400
Category
Calculator
Language
English
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