Table 5-27. The Lcd Displays Service Req. C; Table 5-28. The Lcd Displays Service Req. C; Table 5-29. The Lcd Displays Service Req. C; Table 5-30. The Lcd Displays Service Req. C - Epson C11C605001 - DFX 9000 B/W Dot-matrix Printer Service Manual

Troubleshooting

Table 5-27. The LCD Displays SERVICE REQ. C1130

Cause
ROM (IC5) or (ICI 6) on the
MAIN board maybe
bad.
board may
The C135 MAIN
be bad.

Table 5-28. The LCD Displays SERVICE REQ. C1140

Cause
ROM (IC6) or (IC16) on the
Cl 35 MAIN board maybe
bad.
MAIN boafd MY
The C135
be bad.

Table 5-29. The LCD Displays SERVICE REQ. C1150

Cause
ROM (IC14) or (IC15) on the
bad.
The Cl 35 MAIN
be bad.

Table 5-30. The LCD Displays SERVICE REQ. C1160

Cause
ROM (IC13)or(IC15) on the
bad.
The c135 MAIN board
be bad.

Table 5-31. The LCD Displays SERVICE REQ. C1170

Cause
ROM (IC9) on the C135
MAIN board may be bad.
The C135 MAIN board may
be bad.

Table 5-32. The LCD Displays SERVICE REQ. C1180

cause
The ROMs on the
Module may be bad.
The EPSONScript Level
2 Module circuit maybe
bad.
MAIN board
The C135
5-12
step Checkpoint
Is operation OK after
1
you replace the ROM?
—
Step Checkpoint
ts operation OK after
you reptace the ROM?
—
Checkpoint
Step
Is operation OK after
1
you replace the ROM?
—
Step Checkpoint
Is operation OK after
you replace the ROM?
—
step Checkpoint
Is operation OK after
1
you replace the ROM?
—
I Step I Checkpoint
1 —
2 —
3 —
Finding Solution
Replace ROM (IC5) or
—
MAIN board.
Replace the C135
—
MAIN board.
Solution
Finding
Replace ROM (IC6) or
—
MAIN board.
Replace the C135
—
MAIN board.
Solution
Finding
or (IC15) on the C135
—
MAIN board.
Replace the C135
—
MAIN board.
Solution
Finding
Replace ROM (IC13)
or(IC15) on the C135
—
MAIN board.
Replace the C135
—
MAIN board.
Solution
Finding
Replace ROM (IC9) on
— the C135 MAIN boafd.
Replace the C135
—
MAIN board.
Solution
Finding
ROMs on
Replace the
the EPSONScript Level
2 Module.
Replace the EPSON-
Script Level 2 Module.
Replace the C135 MAIN
board.
I
I
-
A