Casio FX-9700GH Troubleshooting guide

FX-9700GH(LX-395AH)

MAR. 1995

(without price)

fx-9700GH

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—

1. SCHEMATIC DIAGRAM

1-1. Main PCB

— 2—

1-2. Power Supply

– 3 –

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

TYP [µA] MAX [µA]

OFF 20.7

ON (MENU) 1430.22 2026.60

Current Consumption

– 4 –

3. OPERATION CHECK

NO. OPERATION DISPLAY NOTE

Turn the side switch (LOCK)

on and push the "RESET" but-

ton.

SHIFT

F6 ab/cAC

Press the above key at the

same time.

No Display

– – Lx370 TEST MODE – –

1. LCD

2. KEY

3. RAM

4. DET

5. TRS

0. Rst

RUN / COMP

G-type : RECT / CONNECT

angle : Deg

display : Norm 1

M-D/Cpy : M-Disp

ZOOM PLOT LINE CLS

✽ ✽ ✽ Lx370 TEST ✽ ✽ ✽

1. TEST MODE

2. Transmit

3. Exit

✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽

✽

✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽

✽

RESET

RESET ALL MEMORIES?

RESET ALLYES NO

✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽

✽

✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽

RESET

ALL MEMORIES!

✽

– 5 –

NO. OPERATION DISPLAY NOTE

EXE

No Display

FRAME Display

EXE

ALL DOT Display

CHECKER Display

REVERSE CHECKER Display

– – Lx370 TEST MODE – –

1. LCD

2. KEY

3. RAM

4. DET

5. TRS

0. Rst

– 6 –

NO. OPERATION DISPLAY NOTE

EXE

EXE – – Lx370 TEST MODE – –

1. LCD

2. KEY

3. RAM

4. DET

5. TRS

0. Rst

Trace

ZOOM...

– – Lx370 TEST MODE – –

1. LCD

2. KEY

3. RAM

4. DET

5. TRS

0. Rst

RAMSIZE 32K bytes

Press each key

sequentially as it

appears on the

display.

RAMSIZE 32K bytes

RAM OK After a few

seconds.

F1 F2 ........................... .

............................ EXP

Trace Zoom

(–)

– 7 –

NO. OPERATION DISPLAY NOTE

SHIFT AC

No Display

✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽

✽

✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽

✽

RESET

RESET ALL MEMORIES?

RESET ALLYES NO

✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽

✽

✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽✽

RESET

ALL MEMORIES!

✽

– 8 –

4. DATA TRANSFER CHECK

• Turn off both units and connect them by using SB-60.

Function Display

Master Slave

1) Press the F6 , ab/cand AC key

at the same time.

2) 1

3) 5

4) 1

5) Slave: 2

Master: 1

✽ ✽ ✽ Lx370 TEST ✽ ✽ ✽

1. TEST MODE

2. Transmit

3. Exit

– – Lx370 TEST MODE – –

1. LCD

2. KEY

3. RAM

4. DET

5. TRS

0. Rst

= = = TRANSMIT Check = = =

1. COM Check

2. RANDOM Data Out

0. Self

1. Send

2. Receive

COM END WAITING

COM OK

✽ ✽ ✽ Lx370 TEST ✽ ✽ ✽

1. TEST MODE

2. Transmit

3. Exit

– – Lx370 TEST MODE – –

1. LCD

2. KEY

3. RAM

4. DET

5. TRS

0. Rst

= = = TRANSMIT Check = = =

1. COM Check

2. RANDOM Data Out

0. Self

1. Send

2. Receive

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