SECTION 6
SERVICE
Pacific Power Source ©2013
6-38
Document # 126050-10 Rev E
6.5.3 MODULATOR PCB ASSEMBLY REPLACEMENT
This procedure is to be used to replace an MS-Series Modulator PCB Assembly.
Input power MUST be removed before attempting this procedure.
Modulator PCB Assembly Replacement
STEP 1:
Remove input power.
STEP 2:
Remove front covers.
STEP 3:
Remove five screws from the top of the keyboard sub panel.
Fold down the keyboard sub panel.
STEP 4:
Disconnect all cables from the Modulator PCB.
Remove ten nuts holding the Modulator PCB.
Remove the Modulator PCB assembly.
STEP 5:
Install Modulator PCB assembly.
Install the nuts holding the Modulator PCB.
Install all cables to the Modulator PCB.
STEP 6:
Fold up the keyboard sub panel.
Replace five screws from the top of the keyboard sub panel.
STEP 7:
Install front covers.
6.5.4 DISPLAY PCB ASSEMBLY REPLACEMENT
This procedure is to be used to replace an MS-Series Display PCB Assembly.
Input power MUST be removed before attempting this procedure.
Display PCB Assembly Replacement
STEP 1:
Remove input power.
STEP 2:
Remove front covers.
STEP 3:
Remove five screws from the top of the keyboard sub panel.
Fold down the keyboard sub panel.
STEP 4:
Disconnect all cables from Display PCB.
Remove nine nuts holding the Display PCB.
STEP 5:
Lift up Display PCB and remove keyboard connector.
Remove Display PCB assembly.
STEP 6:
Install keyboard connector.