Removing The Main Pwb Unit And Terminal Pwb Unit; Removing The Speaker, Fan, And Power Supply Ballast Unit - Sharp PG-F320W Service Manual

PG-F320W

[3] Removing the main PWB unit and terminal PWB unit

1. Remove all connectors from the main PWB unit.
2. Remove 1 terminal fixing screw.
3. Remove 3 main PWB fixing screws to detach the main PWB unit.
4. Remove 3 cap PWB and terminal PWB fixing screws to detach the cap PWB unit and terminal PWB unit.

[4] Removing the speaker, fan, and power supply ballast unit

1. Remove the speaker.
2. Remove 2 fans for the power supply ballast unit and 1 fan for the optical mechanism unit.
3. Remove 2 bimetal fixing screws to detach the bimetal.
4. Remove 2 lamp socket fixing screws to detach the lamp socket.
5. Remove 1 inlet fixing screw.
6. Remove 4 power supply ballast unit fixing screws to detach the power supply ballast unit.
7. Remove 4 ballast shield (upper) fixing screws to detach the ballast shield (upper).
8. Remove 2 power supply ballast PWB unit fixing screws and 1 clip to detach the power supply PWB unit from the ballast shield (lower).
POWER SUPPLY BALLAST Unit
Fans for power supply
ballast unit
Fan for
optical
mechanism
unit
MAIN PWB Unit
3-4
TERMINAL PWB
Unit
4-6
Lamp Socket
4-4
4-2
4-3
Bimetal
3-3
[CW]
3-1
[RC]
[FA]
[MO]
[LF]
[TH2]
[FD]
[FC]
[TA]
[EA]
[CAP]
[FB]
3-3
[SO]
3-4
[TA]
CAP PWB
Unit
[CAP]
3-2
4-7
POWER SUPPLY
BALLAST PWB
Unit
4-1
Speaker
4-5
2 – 2
Ballast shield (upper)
4-8
Ballast
shield
(lower)
4-8