Operation Check - Casio JD-4000 Service Manual

8. OPERATION CHECK

Notes: (1) Please save all data stored in the unit to another unit by using the method described in
section 9 before starting this check program, because the data will be corrupted by this
operation.
(2) The TEST operation shown below is defined as the short-circuit operation mentioned in
section 9.
STEP OPERATION
Reset
1
2 EXE
TEST
3
EXE
4
0
5
1
6
EXE
7
EXE
8
2
9
EXE
10
EXE
11
EXE
12
EXE
13
EXE
14
3
15
MENU EDIT SYMBOL
..... M SPACE
16
17
5
DISPLAY
Reset ?
Y N
MENU 1
Cauti To Escape
on ! Press AC KEY
TEST
0. TES To Escape
1. SVC Press AC KEY
1. MEM 4. OPT (ZX806)
2. DSP 5. RESET
3. KEY
8K RAM OK !
ROM OK !
1. MEM 4. OPT (ZX806)
2. DSP 5. RESET
3. KEY
All dots are displayed
No display
Checkers are displayed
Reverse checkers are displayed
Frame is displayed
1. MEM 4. OPT (ZX806)
2. DSP 5. RESET
3. KEY
MENU
1. MEM 4. OPT (ZX806)
2. DSP 5. RESET
3. KEY
MENU 1
— 16 —
NOTE
Check buzzer
Check RAM
Check ROM
Check display
Check display
Check display
Check display
Check display
Check key. Push the
key sequentially that is
being appeared in the
display.
Check key
End