Casio FX9700GH Service Manual
FX-9700GH (LX-395AH)
INDEX
MAR. 1995
(without price)
fx-9700GH
R
CONTENTS
1. SCHEMATIC DIAGRAM
1-1. Main PCB ................................................................................................... 1
1-2. Power Supply .............................................................................................2
2. SPECIFICATIONS............................................................................................. 3
3. OPERATION CHECK .........................................................................................4
4. DATA TRANSFER CHECK................................................................................8
5. DATA COMMUNICATIONS
5-1. Connecting Two fx-9700GE Units ............................................................9
5-2. Before Starting Data Communications ....................................................9
5-3. Setting Communications Parameters ....................................................11
5-4. Using ALL, Range, and Factor................................................................11
5-5. Data Communications Precautions .......................................................13
6. PIN FUNCTION.................................................................................................14
7. TROUBLESHOOTING......................................................................................15
8. DISASSEMBLY VIEW......................................................................................16
9. PARTS LIST .................................................................................................... 21
1. SCHEMATIC DIAGRAM
1-1. Main PCB
— 1 —
1-2. Power Supply
— 2 —
2. SPECIFICATIONS
Display system: 21-character × 8-line liquid crystal display; 12-digit mantissa and 2-
digit exponent for calculations; displays binary, octal, hexadecimal,
sexagesimal values, fraction, complex number
Power supply: Main: Four AAA-size batteries (LR03 (AM4) or R03 (UM-4))
Memory protection: One CR2032 lithium battery
Power consumption: 0.1W
Battery life: * Main: Approximately 650 hours with battery type LR03 (AM4)
Approximately 350 hours with battery type R03 (UM-4)
Approximately 2 years (power switch off) with LR03 (AM4)/R03
(UM-4)
Memory protection: Approximately 15 months
* The batteries that have been installed in this unit when user pur
chased it had been used in the factory test, so it will be impossible
to fully satisfy this specifications when these batteries are used.
Auto power off:
Power is automatically switched off approximately six minutes after last operation except when drawing
dynamic graphs.
Ambient temperature range: 0°C ~ 40°C (32°F ~ 104°F)
Dimensions: 20mm H × 85mm W × 172.5mm D ( 3/4" H × 33/8" W × 63/4" D)
Weight: 218.5g (7.7 oz) including batteries
Accessories: Hard case
Current Consumption
TYP [µA] MAX [µA]
OFF 20.7
ON (MENU) 1430.22 2026.60
– 3 –
3. OPERATION CHECK
✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽
✽
✽
✽
✽
✽
✽
✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽
RESET
ALL MEMORIES!
✽
✽
✽
✽
✽
✽
NO. OPERATION DISPLAY NOTE
Turn the side switch (LOCK)
on and push the "RESET" button.
1
F1
2
SHIFT
3
✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽
✽
✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽
RESET ALL MEMORIES?
RUN / COMP
G-type : RECT / CONNECT
angle : Deg
display : Norm 1
M-D/Cpy : M-Disp
RESET
RESET ALLYES NO
✽
AC
4
F6 ab/c AC
Press the above key at the
same time.
5
1
6
ZOOM PLOT LINE CLS
No Display
✽ ✽ ✽ Lx370 TEST ✽ ✽ ✽
1. TEST MODE
2. Transmit
3. Exit
– – Lx370 TEST MODE – –
1. LCD
2. KEY
3. RAM
4. DET
5. TRS
0. Rst
– 4 –
NO. OPERATION DISPLAY NOTE
1
7
FRAME Display
EXE
8
No Display
EXE
9
ALL DOT Display
10
11
12
EXE
EXE
EXE
CHECKER Display
REVERSE CHECKER Display
– – Lx370 TEST MODE – –
1. LCD
2. KEY
3. RAM
4. DET
5. TRS
0. Rst
– 5 –
NO. OPERATION DISPLAY NOTE
2
13
Trace Zoom
F1 F2 ........................... .
............................ EXP
14
EXE
15
(–)
Trace
ZOOM...
Press each key
sequentially as it
appears on the
display.
– – Lx370 TEST MODE – –
1. LCD
2. KEY
3. RAM
4. DET
5. TRS
0. Rst
16
17
3
EXE
RAMSIZE 32K bytes
RAMSIZE 32K bytes
RAM OK
– – Lx370 TEST MODE – –
1. LCD
2. KEY
3. RAM
4. DET
5. TRS
0. Rst
After a few
seconds.
– 6 –
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