Fip-1. 76 Insert Phd Unit 091-972 - Dell 2135cn Service Manual

FIP-1. 76 Insert PHD Unit 091-972

Step
Possible causative parts:
PHD UNIT (PL4.1.21)
PWBA MCU (PL10.7.7)
HARN ASSY PHD XPRO (PL10.8.11)
Checking after reseating the PHD UNIT
Reseat the PHD UNIT.
1
Does the error still occur when the power is turned OFF and
ON?
Checking the connectors for connection
Check the connectors between the PWBA MCU and PHD
UNIT.
Are P/J42 and P/J422 connected correctly?
2
Does the error still occur when the power is turned OFF and
3
ON?
Checking the HARN ASSY PHD XPRO for continuity
Disconnect P422 from the PHD UNIT.
4
Disconnect J42 from the PWBA MCU.
Is each cable of P422 <=> J42 continuous?
Checking after replacing the PHD UNIT
Replace the PHD UNIT. (Refer to Removal 3/Replacement
57.)
5 CAUTION: Be sure to pull eight sealing tapes out from a
new PHD UNIT before installation.
Does the error still occur when the power is turned OFF and
ON?
Version 1 2008.02.01
Check
1 - 322
Chapter 1 Troubleshooting
Remedy
Yes
Go to step 2. End of work.
Reconnect the
connector(s) P/
Go to step 4. J42 and/or P/J422
surly, then go to
step 3.
Go to step 4. End of work.
Replace the
Go to step 5. HARN ASSY PHD
XPRO.
Replace the
PWBA MCU.
(Refer to Removal End of work.
31/ Replacement
29.)
No