Table 5-20. The Lcd Displays Service Req. Eoo; Table 5-22. The Lcd Displays Service Req. Coo; Table 5-23. The Lcd Displays Service Req. Coo; Table 5-26. The Lcd Displays Service Req. C - Epson C11C605001 - DFX 9000 B/W Dot-matrix Printer Service Manual

Service Manual
EPL-9000

Table 5-20. The LCD Displays SERVICE REQ. EOO08

Cause
The
be bad.
Table 5-21. The LCD Displays SERVICE REQ. EOO14
Cause
be bad.
be bad.

Table 5-22. The LCD Displays SERVICE REQ. COO03

Cause
The C135 MAIN board may
be bad.

Table 5-23. The LCD Displays SERVICE REQ. COO07

Cause
35 MAIN board may
The Cl
be bad.
Table 5-24. The LCD Displays SERVICE REQ. CIOOO
Cause
SIMM
The optional may be
bad.
be bad.
Table 5-25. The LCD Displays SERVICE REQ.
Cause
ROM (IC29) on the C135
MAIN board may be bad.
The Cl 35 MAIN board
be bad.

Table 5-26. The LCD Displays SERVICE REQ. C1120

Cause
be bad.
Rev. A
Step Checkpoint
—
Step Checkpoint
, —
—
Step Checkpoint
,
—
Checkpoint
Step
—
Step Checkpoint
operation OK after you
Is
,
remove the optional
SIMM?
—
Step Checkpoint
Is operation OK after
1
you replace the ROM?
—
Checkpoint
Step
Is operation OK after
you replace the ROM?
—
Troubleshooting
Finding
Solution
Replace the MCU
—
Finding Solution
Replace the MCU
—
Replace the Cl 35
—
board.
MAIN
Solution
Finding
Replace the C135
—
MAIN
board.
Finding Solution
Replace the C135
—
MAIN board.
Finding Solution
Replace the optional
Yes
SIMM.
Replace the C135
—
MAIN board.
CII1O
Finding Solution
Replace ROM (IC29)
on the C135 MAIN
—
board.
Replace the C135
—
MAIN board.
Solution
Finding
Replace ROM (IC30)
on the C135 MAIN
'
board.
I
Replace the C135
—
MAIN board.
I
5-11