Troubleshooting
Rev. A
5-9
5.3 Repair of the C172 PSB/PSE Board at Component Level
This section contains information which enables you to repair and replace the components on the
electrical board (C172 PSB/PSE). Table 5-5 lists the potential causes for each symptom in order of
possibility, with which you are able to find and repair the defective part.
Table 5-5. Component Repair of the C172 PSB/PSE Board
Symptom
Condition
Cause
Checkpoint
Solution
The printer
does not
+42 VDC is
not output.
Fuse (F1) is open. Check visually if the fuse is
normal.
Replace the fuse F1.
operate at all.
Transformer (T1) is
open.
Check the transformer using a
multimeter.
Replace the
transformer T1.
Q1 is dead.
Check the waveform at drain.
Replace the Q1.
Q2 or Q3 is dead.
Check the waveform at
corrector.
Replace the Q2 or
Q3.
PC1 is dead.
Check the voltage in lowering
at the pin 5 or 7.
Replace PC1.
+5 VDC is
not output.
L4962 is dead.
Check the reference waveform
at the pin 5.
Replace the L4962.
Check the output waveform at
pin 7.
Summary of Contents for 1520 - Stylus Color Inkjet Printer
Page 138: ...Maintenance Rev A 6 5 8 9 10 10 10 10 10 10 10 10 Figure 6 2 Lubrication Points 2 ...
Page 146: ...Appendix Rev A A 7 A 2 Circuit Diagrams Figure A A 2 C211 MAIN B Board Circuit Diagram 1 2 ...
Page 147: ...EPSON Stylus COLOR 1520 Rev A A 8 ...
Page 148: ...Appendix Rev A A 9 Figure A A 3 C211 MAIN B Board Circuit Diagram 2 2 ...
Page 149: ...EPSON Stylus COLOR 1520 Rev A A 10 ...
Page 152: ...Appendix Rev A A 13 A 3 Component Layout Figure A A 6 C211 MAIN B Board Component Layout ...
Page 153: ...EPSON Stylus COLOR 1520 Rev A A 14 Figure A A 7 C172 PSB Board Component Layout ...
Page 154: ...Appendix Rev A A 15 Figure A A 8 C172 PSE Board Component Layout ...
Page 156: ...Appendix Rev A A 17 Figure A A 10 Stylus COLOR 1520 Exploded Diagram 2 ...
Page 157: ...EPSON Stylus COLOR 1520 Rev A A 18 Figure A A 11 Stylus Color 1520 Exploded Diagram 3 ...
Page 165: ...EPSON SEIKO EPSON CORPORATION ...
