Epson LQ-510 Technical Manual page 181
Hide thumbs
Also See for LQ-510:
- User manual (295 pages) ,
- Product information manual (8 pages) ,
- Paper manual (6 pages)
Table of Contents
Advertisement
TROUBLESHOOTING
Problem
Symptom
Printer does
CPU is not
operate at
operating.
all.
5-16
Table 5-7. SAMA Board Unit Repair (Cont.)
Cause
Selection of
Check pin 2 of IC7A for a changing signal HIGH/LOW.
control ROM
is abnormal.
Either ROM
or RAM is
defective.
CPU is
Check for oscillator signal at either pin 31 or pin 32 of
defective.
he CPU.
Checkpoint
REV.-A
Solution
Replace
IC7A.
Replace
either IC6A
or IC5A.
If a signal is
detected,
replace
IC5B. Other-
wise,
replace the
CR1.
LQ-510
Advertisement
Chapters
Table of Contents
