C
HAPTER
3. M
AINTENANCE
P
ROCEDURES
3-109
02.9631.0010
CONFIDENTIAL
15 Jan 98
3.3.17.4 APS Control Board IC, Diode, and Resistor Removal
and Replacement
Parts:
1 EA
IC, 14024 SEVEN STAGE RIPPLE COUNTER
(83.3109.0001)
1 EA
DIODE, ZENER, 1N5347 10V 5W (82.5305.5347)
1 EA
RES, 1W 5% 10 OHM MET OXIDE (60.3430.1004)
Tools:
Screwdriver, Phillips #2
Screwdriver, Phillips #1
IC Puller
Soldering iron
Solder sucker
Solder
To remove and replace APS control board IC, diode, or resistor:
Step 1.
Remove power to luminaire.
Step 2.
Open chassis lid.
a. At electronics chassis, remove six 10-32x3/8"PPB screws
that secure chassis lid to chassis and open chassis lid.
Step 3.
Remove APS from chassis. Refer to Arc Power Supply
Removal and Replacement paragraph.
Step 4.
Using IC puller for IC chip removal, gently pry IC from socket.
Replace IC by doing Steps 2 and 3 in reverse. For diode or
resistor replacement, continue with next step.
Step 5.
Separate APS control board from APS.
a. At APS control board, disconnect the following connectors
(Figure 3-35):
•
Five-pin MATE-N-LOK connector at P7.
•
Two-pin MATE-N-LOK connector at P6.
•
Three-pin MTA connector at P5.
•
Two-pin MTA connector at P3.
•
Four-pin MTA connector at P2.
•
Five-pin MTA connector at P1.
b. At APS control board, remove seven 6-32x1/4"PPZ screws
that secure control board to APS chassis and remove
control board.
Step 6.
At faulty diode or resistor, unsolder faulty part.
Step 7.
Replace diode or resistor by doing Steps 2 through 6 in reverse.
