Ccd Agc - Xerox DocuColor 1632 Service Manual

15-384 CCD AGC

Automatic Gain Control (AGC) for CCD Channel 5 blue failed.
Initial Actions
ï Verify that Platen Glass is installed correctly.
ï Verify that NVM 715-400 = 1
Procedure
NOTE: Refer the BSD 6.1, 6.2 and 6.7 as required.
Enter dC330 [6-002] and press Start. The Exposure Lamp illuminates.
Y N
Go to the 6-371 Exposure Lamp RAP.
The Exposure Lamp illumination is bright and steady.
Y N
Go to p/j722 and p/j724 on BSD 6.1 and check the wires for an open or short circuit.
Verify that j742 on the Lamp Ballast PWB and p/j724 on the IIT/IPS PWB are seated.
If the wires and connectors are good, replace the Exposure Lamp (PL 18.6).
If the problem continues, replace the Lamp Ballast PWB (PL 18.6).
If the problem continues, replace the IIT Driver PWB (PL 18.3).
Remove the Platen Glass (REP 6.2). The white reference strip on the bottom of the
Platen Glass is clean and undamaged.
Y N
Clean the white reference strip or replace the Platen Glass (PL 18.3).
Go to p/j721 on BSD 6.2 and check the flat cable on the IIT/IPS PWB and j741 on the CCD
PWB for damage. Reseat the flat cable.
If the problem continues, replace the Lens Kit (PL 18.4).
If the problem continues, replace the IIT/IPS PWB (PL 18.3).
Prelaunch Training/Review
DC1632/2240
15-385 CCD AGC
Automatic Gain Control (AGC) for CCD Channel 6 blue failed.
Initial Actions
ï Verify that Platen Glass is installed correctly.
ï Verify that NVM 715-400 = 1
Procedure
NOTE: Refer the BSD 6.1, 6.2 and 6.7 as required.
Enter dC330 [6-002] and press Start. The Exposure Lamp illuminates.
Y N
Go to the 6-371 Exposure Lamp RAP.
The Exposure Lamp illumination is bright and steady.
Y N
Go to p/j722 and p/j724 on BSD 6.1 and check the wires for an open or short circuit.
Verify that j742 on the Lamp Ballast PWB and p/j724 on the IIT/IPS PWB are seated.
If the wires and connectors are good, replace the Exposure Lamp (PL 18.6).
If the problem continues, replace the Lamp Ballast PWB (PL 18.6).
If the problem continues, replace the IIT Driver PWB (PL 18.3).
Remove the Platen Glass (REP 6.2). The white reference strip on the bottom of the
Platen Glass is clean and undamaged.
Y N
Clean the white reference strip or replace the Platen Glass (PL 18.3).
Go to p/j721 on BSD 6.2 and check the flat cable on the IIT/IPS PWB and j741 on the CCD
PWB for damage. Reseat the flat cable.
If the problem continues, replace the Lens Kit (PL 18.4).
If the problem continues, replace the IIT/IPS PWB (PL 18.3).
6/02
2-257
Status Indicator RAPs
15-384, 15-385