Epson Stylus Color 670

EPSON Stylus COLOR 670 Revision A
Troubleshooting Unit Repair (Control Board) 59
Carriage
does not
operate
correctly.
CR motor does
not operate
properly.
IC2 is
broken.
Check the PHASE (Pin 16
and 27) of IC13 and
signal waveform of OUT
(Pin 7,6,9,8).
If PHASE-
DATA is
not input,
replace IC2.
IC13 is
broken.
Check if waveform of
OUT (Pin 7,6,9,8) is
output from IC13.
If OUT is
not output
from IC13,
replace
IC13.
Table 3-6. Control Board Troubleshooting (continued)
Symptom Condition Cause Check point Solution