4-68 Phaser 4500 Service Manual
3
Check Stacker Harness 2:
1. Disconnect P/J70 from Stacker PWBA.
2. Remove Stacker Harness 2.
3. Test J70 <=> J3070 for continuity
Is the harness continuous?
Go to step 4. Replace Stacker
Harness 2.
4
Check Stacker Harness 1:
1. Remove Stacker Harness 1.
2. Test J30 <=> J3070 for continuity.
Is the harness continuous?
Go to step 5. Replace Stacker
Harness 1.
5
Replace the Stacker PWBA (page 8-142).
Is the problem cleared?
Problem solved. Replace the
HVPS/Engine
Logic Board
(page 8-89).
Troubleshooting Procedure (Continued)
Steps Actions and Questions Yes No
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