Specifications

Chapter 6: FRU Replacement and Fault Isolation Procedures
6-81
6.3.21 HVPS TR failure continued
5. HVPS HARNESS ASSEMBLY ANALYSIS
Disconnect P/J111 on the HVPS and P/J15 on the MCU PWB.
Is there continuity (0
Ω) Ω)
between all wires on P/J15 on the MCU PWB and P/J111 on the
HVPS?
Yes No
Go to Step 6 Replace the HVPS Harness Assembly.
6. MCU PWB ANALYSIS
Install a new MCU PWB.
Is the problem still present?
Yes No
Replace the HVPS. Problem solved.