TM 11-6625-3081-23
5-38.
HEAT SOURCE TARGET ASSEMBLY 2A3A1A1 REPAIR (cont)
5-38
3. MICROCIRCUIT AND HEAT SINK/CABLE
ASSEMBLY W24 OR W25 REPLACEMENT
REMOVAL
a.
Refer to 1 above and do steps a
through h to gain access to
microcircuit and heat sink
assemblies.
CAUTION
Exercise special care when working
near optical surfaces.
Avoid touch-
ing or contaminating any optical
surface.
NOTE
Do step b below to replace microcir-
cuit and heat sink/cable assembly W24
on heat source assembly Al, or do
step c below to replace microcircuit
and heat sink/cable assembly W25 on
heat source assembly A2.
b.
On heat source assembly A1 (1),
disconnect W25J1 from W6P14 (2),
and turn microcircuit and heat
sink/cable assembly W25 (3)
counterclockwise.
c.
On heat source assembly A2 (4),
disconnect W24J1 from W6P13 (5)
and turn microcircuit and heat
sink/cable assembly W24 (6)
counterclockwise.
ISOPROPYL ALCOHOL
FLAMMABLE, TOXIC, IRRITATING. CAN
CAUSE BREATHING PROBLEMS, EYE
DAMAGE.
DON’T:
USE NEAR FLAMES OR SPARKS,
LET IT GET IN EYES, OR BREATHE
VAPORS.
DO:
USE IN WELL-VENTILATED AREA,
CLOSE CONTAINERS WHEN NOT USING.
WEAR ACID-TYPE SAFETY GOGGLES.
IF IT CONTACTS EYES, WASH EYES
WITH RUNNING WATER. GET MEDICAL
HELP AT ONCE.
IF YOU EXPERIENCE ANY BREATHING
PROBLEMS, GET TO FRESH AIR AT
ONCE.
d. Using isopropyl alcohol, clean
thermal grease from mating sur-
face of heat source
assembly (1) or (4).
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