Epson Stylus COLOR 800 Service Manual page 160

EPSON Stylus &2/25 800
Table 5-8. Repair of the C202 MAIN Board Component (2)
Symptom Description
CR does not CR does not
operate properly. operate properly.
Paper is not fed PF motor does
properly. not operate
properly.
5-14
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Cause Check points
• Check that the driving waveform
IC13 or IC2
is defective.
for each phase output from the
IC13 is as shown below. The
figure below represents the
waveforms for the phase A and
phase -A.
• Check that the CR motor phase
IC1 or IC2 is
defective.
changeover waveform output
from the IC2 to the IC13 is as
shown below.
• Check that the drive waveform
IC16 or IC2
is defective.
for each phase output from the
IC16 is as shown below. The
figure below represents the
waveforms for the phase A and
phase -A.
Solution
Replace the
IC13.
Replace the
MAIN board.
Replace the
IC16.
Rev. A