4. Abnormal Printing
START
Does
the Operate button
turn power on
and off?
NO
YES
Is
the
Operate button
OK?
NO
Replace the
PNL board.
Check the Operate button
on the control panel using
a multimeter.
YES
Is the
problem
corrected?
NO
END
YES
Is
the FFC
connected
correctly?
NO
Connect the
cable correctly.
YES
Is the
problem
corrected?
NO
END
YES
Check
pin 19 of
the FFC. Is it
OK?
NO
Replace the
FFC.
YES
Is the
problem
corrected?
NO
END
YES
Replace the C166
PSB/PSE board.
END
Do the
control panel
buttons
function
OK?
NO
YES
Check them using
a multimeter.
Are
they
OK?
NO
YES
Replace the
PNL board.
Is the
problem
corrected?
NO
END
YES
Is
the FFC
connected
correctly?
NO
Connect the
cable correctly.
YES
Is the
problem
corrected?
NO
END
YES
Check
the FFC using a
multimeter. Is it
OK?
NO
Replace the
FFC.
YES
Is the
problem
corrected?
NO
END
YES
Replace the C166
MAIN board.
END
Figure 5-6 Flowchart 4
LQ-2170 Service Manual
Troubleshooting
Rev.A
5-9
Summary of Contents for LQ-2170
Page 1: ...EPSON TERMINAL PRINTER LQ 2170 SERVICE MANUAL EPSON 4005735 ...
Page 5: ...REVISION SHEET Revision Issued Date Revision Page Rev A December 5 1995 1st issued ...
Page 11: ...Figure 1 1 Exterior View of the LQ 2170 Product Description LQ 2170 Service Manual 1 2 Rev A ...
Page 80: ......
Page 127: ...1 Abnormal CR Operation LQ 2170 Service Manual Troubleshooting Rev A 5 5 ...
Page 141: ...LQ 2170 Service Manual Troubleshooting Rev A 5 19 ...
Page 156: ...Appendix LQ 2170 Service Manual A 10 Rev A ...
Page 158: ...Appendix LQ 2170 Service Manual A 12 Rev A ...
Page 159: ...Figure A 3 C165 PSB Board Assembly Circuit Diagram LQ 2170 Service Manual Appendix Rev A A 13 ...
Page 160: ...Appendix LQ 2170 Service Manual A 14 Rev A ...
Page 161: ...Figure A 4 C165 PSE Board Assembly Circuit Diagram LQ 2170 Service Manual Appendix Rev A A 15 ...
Page 162: ...Appendix LQ 2170 Service Manual A 16 Rev A ...
Page 167: ...Figure A 9 LQ 2170 Exploded Diagrams 2 LQ 2170 Service Manual Appendix Rev A A 21 ...
Page 168: ...Figure A 10 LQ 2170 Exploded Diagrams 3 Appendix LQ 2170 Service Manual A 22 Rev A ...
Page 169: ...Figure A 11 C S F Bin1 Exploded Diagrams 1 LQ 2170 Service Manual Appendix Rev A A 23 ...
Page 170: ...Figure A 12 C S F Bin1 Exploded Diagrams 2 Appendix LQ 2170 Service Manual A 24 Rev A ...
Page 171: ...Figure A 13 C S F Bin2 Exploded Diagrams LQ 2170 Service Manual Appendix Rev A A 25 ...
Page 172: ...Table A 15 Part No Reference Table Appendix LQ 2170 Service Manual A 26 Rev A ...
Page 173: ...Table A 15 Part No Reerence Table Continue LQ 2170 Service Manual Appendix Rev A A 27 ...
Page 174: ...Appendix LQ 2170 Service Manual A 28 Rev A ...
Page 175: ...EPSON Printed in Japan 95 12 05 S ...