Sharp PG-C20XU Service Manual page 17

5. Removing the ballast/power/AC inlet PWB unit, cooling fan and AC select
switch
5-1. Remove the lock screw (yellow or silver) from the ballast cover. Peel the Teflon tape that secures the lead
wires on the ballast cover. Detach the ballast cover.
5-2. Remove the three lock screws (yellow or silver) from the ballast PWB unit. Disconnect the connectors from
the power PWB unit and detach the ballast PWB unit.
5-3. Remove the two lock screws (silver) from the cooling fan/power PWB unit and detach the cooling fan unit.
5-4. Remove the three lock screws (silver) from the AC inlet/power PWB unit. Disconnect the AC select switch
connectors and the power PWB connector (EA). Detach the AC inlet PWB unit, power PWB unit and power
PWB unit cover.
5-5. Remove the two lock screws (yellow) from the AC select switch and detach the switch, slide and spring.
Cooling fan
Power PWB unit
Power PWB unit cover
Precautions in reassembling
Keep the high-voltage leads ( A and B in
the figure) of the lamp socket on the
ballast PWB out of contact with the cooling
fan. To do this, lay the lead B behind the
lead A and dress them up in the cooling
fan holder notch.
Ballast cover
5-2
5-3
B
A
5-1
5-1
Teflon tape
Ballast PWB
( Note: Be careful when connecting this
connector close to the live part of the
ballast PWB unit.
AC inlet PWB unit
5-4
AC select switch
Slide
Spring
(EA)
17
PG-C20XU
PG-C20XE
)
5-4
5-5
AN-Z7T