Table of Contents
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Troubleshooting
Table 5-27. The LCD Displays SERVICE REQ.
Cause
ROM
or (ICI 6) on the
MAIN board maybe
bad.
board
The
MAIN
be bad.
Table 5-28. The LCD Displays SERVICE REQ.
Cause
ROM
or
on the
Cl 35 MAIN board maybe
bad.
MAIN
The
be bad.
Table 5-29. The LCD Displays SERVICE REQ.
Cause
ROM
or
on the
MAIN board maybe
bad.
The Cl 35 MAIN
be bad.
Table 5-30. The LCD Displays SERVICE REQ.
Cause
ROM (IC13)or(IC15) on the
MAIN board maybe
bad.
The
MAIN board
be bad.
Table 5-31. The LCD Displays SERVICE REQ.
Cause
ROM
on the
MAIN board may be bad.
The
MAIN board
be bad.
Table 5-32. The LCD Displays SERVICE REQ.
cause
The ROMs on the
Level 2
Module may be bad.
The
Level
2 Module circuit maybe
bad.
MAIN
The
be bad.
5-12
step
Checkpoint
Is operation OK after
1
you replace the ROM?
—
Step
Checkpoint
ts operation OK after
you
—
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
Checkpoint
1
—
2
—
3
—
Finding
—
—
Finding
—
the ROM?
—
Finding
—
—
Finding
—
—
Finding
—
—
Finding
Service Manual
Solution
Replace ROM
or
on the
MAIN board.
Replace the
MAIN board.
Solution
Replace ROM
or
on the
MAIN board.
Replace the
MAIN board.
Solution
ROM
or
on the
MAIN board.
Replace the
MAIN board.
Solution
Replace ROM
or(IC15) on the
MAIN board.
Replace the
MAIN board.
Solution
Replace ROM
on
the
MAIN
Replace the
MAIN board.
Solution
ROMs on
Replace the
the
Level
-
2
Module.
Replace the
Script Level 2 Module.
Replace the
MAIN
board.
A
I
I
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