EPSON Stylus Photo
Rev. A
5-9
5.3 Unit Repair C206 PSB/PSE Board
This section describes the problems related to the power supply board(C206 PSB/PSE). The table below
provides various symptoms, likely causes, and checkpoints. The checkpoints refer to waveforms,
resistance, and other values to be checked to evaluate the operation of each component.
Symptom
Condition
Cause
Checkpoint
Solution
The printer
does not
operate at all.
+42V line is
dead.
F1 is open.
Check F1 by using a
tester.
Replace F1.
Transformer coils
are open.
Check the waveform at
the drain of Q1.
Replace T1.
Switching FET (Q1)
is dead.
Check drain side.
Replace Q1.
Feed back
transistor(Q2, Q3)
are dead.
Check corrector side.
Replace Q2
or Q3.
+42 V line is
abnormal.
Check following parts.
•
ZD87,ZD83
•
ZD51,ZD81
•`
ZD86
•
PC1
Replace
suitable
parts.
Table 5-5. C206PSB Power Supply Borad
Summary of Contents for Stylus Color
Page 1: ...EPSON COLOR INK JET PRINTER EPSON Stylus Photo SERVICE MANUAL SEIKO EPSON CORPORATION 4007542 ...
Page 5: ...v REVISION SHEET Revision Issued Data Contents Rev A March 26 1997 First issue ...
Page 130: ...Chapter 6 Maintenance Rev A 6 5 No 3 No 11 GEAR 34 No 1 No 2 10mm 2mm 2mm ...
Page 141: ...Appendix Rev A A 8 A 4 Circuit Board Component Layouts Figure A 2 C209 Component Layout ...
Page 142: ...EPSON Stylus Photo Rev A A 9 Figure A 3 C206PSB Component Layout ...
Page 143: ...Appendix Rev A A 10 Figure A 4 C206PSE Board Component Layout ...
Page 144: ...EPSON Stylus Photo Rev A A 11 Figure A 5 C209 PNL Component Layout ...
Page 145: ...Appendix Rev A A 12 A 5 Exploded Diagrams Figure A 6 EPSON Stylus Photo Exploded Diagram 1 ...
Page 146: ...EPSON Stylus Photo Rev A A 13 Figure A 7 EPSON Stylus Photo Exploded Diagram 2 ...
Page 147: ...Appendix Rev A A 14 Figure A 8 EPSON Stylus Photo Exploded Diagram 3 ...
Page 148: ...EPSON Stylus Photo Rev A A 15 A 6 Circuit Diagrams Figure A 9 C206PSB Board Circuit Diagram ...
Page 149: ...Appendix Rev A A 16 Figure A 10 C206PSE Board Circuit Diagram ...
Page 151: ...EPSON SEIKO EPSON CORPORATION ...