XR-20X (serv.man10). Removing Major Parts - Sharp Projector Service Manual (repair manual). Page 2

3-1. Remove all connectors from the main PWB unit.
3-2. Remove 2 terminal fixing screws.
3-3. Remove 3 main PWB fixing screws to detach the main PWB unit.

4-1. Remove the speaker.
4-2. Remove 2 fans for the power supply ballast unit and 1 fan for the optical mechanism unit.
4-3. Remove 2 bimetal fixing screws to detach the bimetal.
4-4. Remove 2 lamp socket fixing screws to detach the lamp socket.
4-5. Remove 1 inlet fixing screw.
4-6. Remove 4 ballast unit fixing screws to detach the power supply ballast unit.
4-7. Remove 4 ballast shield (upper) fixing screws to detach the ballast shield (upper).
4-8. Remove 2 ballast PWB fixing screws and 1 clip to detach the power supply PWB unit from the ballast shield

(lower).

[RC]

[CW]

[FA]

[MO]

[LF]

[SO]

[FB]

[EA]

[FC]

[FD]

3-3

3-1

3-1

MAIN PWB Unit

3-3

3-2

[BB]

4-8

4-7

4-7

4-8

Ballast shield (upper)

Ballast 
shield 
(lower)

POWER SUPPLY 
BALLAST PWB
Unit

4-2

4-1

4-5

4-4

4-6

4-3

Speaker

Bimetal

Fan for 
optical 
mechanism 
unit

Fans for power supply 
ballast unit

Lamp Socket

POWER SUPPLY BALLAST Unit