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SF-4400
Casio SF-4400 Service Manual & Parts List
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— 18 —
8.
HARD CHECK
No.
OPERATION
DISPLAY
NOTE
Turn on while short the short pad
(KEY61).
No display
All dots display
Checker display
Reverse checker display
1
2
3
5
6
7
TEST
2
MEMORY
MENU
3
KEY
4
BUZZER
1
DISP
5
I/F
DISP
4
RVS.
1
WHITE
5
FRAME
2
BLACK
6
DOT 4
3
CHECK.
7
TIME
Main menu
Display check
1
1
4
2
3
4
SEARCH
SELF TEST PROG.
PRESS SEARCH
QUIT BY OFF
CASIO SEP. 1993
The short pad is
located behind the
tape
I
.
19
21
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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Casio SF-4400 Specifications
General
Brand
Casio
Model
SF-4400
Category
Calculator
Language
English
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