Parts Replacement In Light Engine - Toshiba 52HMX84 Service Manual

PARTS REPLACEMENT IN LIGHT ENGINE

1 FAN Replacement
1-1. For replacing FAN for cooling heatsink, remove 2
screws.
For replacing FAN for cooling lamp, detach FAN hood
located on LIGHT ENGINE by removing 2 screws and
then remove 4 screws.
FAN for cooling lamp
2. Replacement of Ballast Power Unit
2-1. Remove lamp unit by loosening 2 screws.
(Refer to pages 13 to 15)
2-2. Remove 2 screws holding chassis of ballast power unit
to detach the chassis.
Note:
Treat with enough care so as not to damage the
cable for lamp power.
Ballast power unit
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FAN for cooling heatsink
- 18 -
2-3. Detach the ballast power unit by removing 4 substrate
stoppers that hold the ballast power unit.
CAUTION
Precautions When Exchanging Ballast Power Units
When you install a new ballast power unit, install it
while pushing the four corners of the board directly.
Installation while pressing the heatsink may cause
the pattern crack.
3. Replacement of Temperature Breaker
3-1. Remove 2 screws for replacing the temperature breaker
for lamp.