Hi all,
My 54720A comes on briefly before switching itself off.
No modules in frame.
Been through section 5-12 of the service guide and I have all rail LEDs green and then LED1 on and LED2 off.
Its not hot since its been off for a long time so I thought about the overload protection and did the resistance tests in fig 5-7 and all rails test as per instruction.
Doing the instructions for the 5.1v and 120v rails pass as well.
Before I proceed further with pulling cards, I thought I'd ask if there was a common fault or two I could go check for 1st.
I'd also like to know if anyone has managed to power up the PSU outside the chassis for testing and what was the connectivity required to do that.
If I can power up the PSU outside the frame I an eliminate that as a cause.
thanks
Tim
