Voltage Correction For Measurement Of Apvc (Pw_Ofst) - Canon NP6512 Service Manual

CHAPTER 11 TROUBLESHOOTING
6.

Voltage Correction for Measurement of APVC (PW_OFST)

Perform this adjustment if you have replaced any of the following:
• DC controller PCB
• Composite power supply PCB
Making Adjustments
1) Select '34' in service mode.
• The display will indicate '34'.
2) Press the Copy Start key.
• The existing setting will flash.
3) Enter the value of 'PW_OFST' recorded on the service label using the +/- key.
4) Press the AE key to store the new value.
5) Execute 'U7' in user mode (installation/drum replacement mode).
• If you have replaced the composite power supply PCB,
1) Select '34' in service mode.
• The display will indicate '34'.
2) Press the Copy Start key.
• The existing setting will flash.
3) Enter the value of 'PW_OFST' indicated on the new composite power supply PCB using the +/
- key.
4) Press the AE key to store the value.
5) Record the new value on the service label.
6) Execute 'U7' in user mode (installation/drum replacement mode).
11-48
COPYRIGHT © 1999 CANON INC.
120V 230V
34
PW
OFST
35
IP
ADJ
Composite power supply PCB
Figure 11-266
CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)