363-205-401
Power Up:
Issue 7, March 1997
Page 1 of 4
DLP-511
Install and Test Power Converter Unit (PCU) in
Facility Shelf
SUMMARY: Install PCU in facility shelf and verify that FAIL indicator goes off and
remains off. Measure
−
42 to
−
56 V DC at PCU faceplate.
1.
Get one AUA11( ) PCU and inspect for possible damage.
2.
Insert PCU into PCU slot in facility (middle) shelf.
3.
NOTE:
FAIL indicator on PCU may light momentarily when inserted into RT.
Does FAIL indicator on PCU go off and remain off?
If YES, then proceed to Step 8.
If NO, then continue with Step 4.
4.
Replace PCU.
5.
NOTE:
FAIL indicator on PCU may light momentarily when inserted into RT.
Does FAIL indicator on PCU go off and remain off?
If YES, then proceed to Step 8.
If NO, then continue with Step 6.
6.
Replace PCU with PCU removed previously.
7.
Use SD-7C117-01 or SD-7C117-02 to check bank wiring. Repeat procedure
from Step 3 after locating and correcting trouble.
8.
Condition DMM to measure volts DC.
9.
On PCU, connect DMM test leads to GND jack and
−
48 jack.
