
EPSON PhotoPC 850Z
Revision A
Adjustment
Adjustment
93
5.2.2 Positions for Measuring and Adjusting on
PW1 Board
It is not necessary to perform this adjustment when replacing the entire PW1
Board. However, the adjustment is required if individual parts of the PW1
Board are replaced.
Figure 5-4. Positions for Measuring and Adjustment
5.2.2.1 Preparation
1.
Remove the shield case of Side A on the PW1 Board.
2.
If adjustment is performed without barrier switch, short Pins 1, 2 and 3 of
CN322 on the SY2 Board.
5.2.2.2 IC501 Oscillation Frequency Adjustment
Measuring Point:
CL520
Measuring Equipment:
Frequency Counter
ADJ. Location:
VR501
ADJ. Value:
200 ± 0.50 kHz
Adjusting Method:
Adjust with VR501 to 200 ± 0.50 kHz.
5.2.2.3 5.1V (A) Voltage Adjustment
Measuring Point:
CL530
Measuring Equipment:
Digital Voltmeter
ADJ. Location:
VR502
ADJ. Value:
5.10V ± 0.05V
Adjusting Method:
Adjust with VR502 to 5.10 ± 0.05V.
5.2.2.4 3.25V (D) Voltage Adjustment
Measuring Point:
CL535
Measuring Equipment:
Digital Voltmeter
ADJ. Location:
VR503
ADJ. Value:
3.25 ± 0.05V
Adjusting Method:
Adjust with VR503 to 3.25 ± 0.05V.
C A U T I O N
It is necessary to adjust the voltage when the adjustment
value is out of rule.
Voltage adjustment can be carried out in VIEW mode and
backlight ON.
VR504
VR502
CL530
CL534
CL535
CL554
CL520
CL563
VR505
VR501
VR503
pw1
Содержание PhotoPC 850Z
Страница 1: ...EPSONPhotoPC850Z Digital Still Camera ...
Страница 5: ...Revision Status Revision Date of Issue Description A September 16 1999 First Release ...
Страница 9: ... PRODUCTDESCRIPTION ...
Страница 38: ... OPERATINGPRINCIPLES ...
Страница 57: ... TROUBLESHOOTING ...
Страница 60: ... DISASSEMBLYANDASSEMBLY ...
Страница 89: ... ADJUSTMENT ...
Страница 102: ... MAINTENANCE ...
Страница 105: ... APPENDIX ...
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Страница 109: ...EPSON PhotoPC 850Z Revision A Appendix Circuit Boards Component Layout 109 Figure 7 2 CA2 Circuit Board ca2patter ...
Страница 111: ...EPSON PhotoPC 850Z Revision A Appendix Circuit Boards Component Layout 111 Figure 7 5 PW1 Circuit Board ...
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Страница 125: ...s i e m e n s ...