Epson Stylus Pro Service Manual page 103

Stylus Pro Service Manual
Table 5-7. Repair of the C164 MAIN (Continued)
Symptom
Condition
Carriage does
The carriage
not operate
does not
normally.
operate at all.
Self-test is
Self-test
not executed.
printing is
abnormal.
The paper
feed motor
does not
rotate.
Paper feed
does not
operate
normally.
Rev.A
Cause
Check the output signal at pin 1, 8
IC15 is defective.
or 11, 18 of IC15.
Check the output signal at pin 13 or
IC2 is defective.
14 and pin 15 or 16 of IC2.
Printhead is
defective
Check the serial signal output from
pin 40 or 41 of IC2 to the driver IC14. Replace
IC2 is defective.
IC14 is defective. Check the output signal at pin 1,
8 or 11, 18 of IC14.
Troubleshooting
Checkpoint Solution
Replace
IC15.
Replace
IC2.
Replace
printhead.
IC2.
Replace
IC14.
5-11