Troubleshooting
EPSON FX-880/FX-1180 Service Manual
5-19
Table 5-12. Repairing the C229 Main Board Assembly (continued)
Symptom
Condition
Possible
Cause
Checkpoint
Solution
The printer
does not
operate.
(continued)
The CPU does
not operate.
(continued)
The CPU is
defective.
Check the signal at pin 26 or
27 of IC3 (This is the CPU’s
clock signal.) Pin 28 may be
used as the ground.
Replace the main
board.
Carriage
operation is
abnormal.
The carriage
does not operate.
IC8 is defective.
Check the carriage motor
phase control signals at pins
5, 6, 16, and 17 of IC8; also,
check the motor drive signals
at pins 1, 8, 11, and 18 of
IC8. The chassis frame may
be used as the ground.
Pin 5 of IC8
Pin 1, of IC8
Replace the main
board.
Summary of Contents for FX-1180 - Impact Printer
Page 1: ...Epson America Inc TM FX88 1180 Service Manual FX 880 FX 1180 ...
Page 4: ...iv EPSON FX 880 FX 1180 Service Manual ...
Page 6: ...vi EPSON FX 880 FX 1180 Service Manual ...
Page 11: ...Product Descriptions 1 ii EPSON FX 880 FX 1180 Service Manual ...
Page 42: ...Operating Principles 2 ii EPSON FX 880 FX 1180 Service Manual ...
Page 60: ...Disassembly and Assembly 3 ii ESPON FX 880 FX 1180 Service Manual ...
Page 94: ...Adjustments 4 ii EPSON FX 880 FX 1180 Service Manual ...
Page 103: ...Troubleshooting 5 ii EPSON FX 880 FX 1180 Service Manual ...
Page 128: ...Maintenance 6 ii EPSON FX 880 FX 1180 Service Manual ...
Page 135: ...Appendix A ii EPSON FX 880 FX 1180 Service Manual ...
Page 143: ...Appendix A 8 EPSON FX 880 FX 1180 Service Manual Figure A 3 C229 PSB Board Component Layout ...
Page 144: ...Appendix EPSON FX 880 FX 1180 Service Manual A 9 Figure A 4 C229 PSE Board Component Layout ...
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