JVC HD-52Z575 CRT Television User Manual


 
(No.YA092B)1-17
<OPTICAL SIDE>
3.1.26 LAMP FAN DUCT & THERMOSTAT
Take out the BODY COVER.
Take out the BODY BRACKET.
Take out the MAIN UNIT.
(1) Remove 4 screws [ A ].
(2) Take out the LAMP FAN DUCT.
(3) Remove 2 screws [ B ].
(4) Take out the THERMOSTAT.
3.1.27 FAN CONTROL PWB
Take out the BODY COVER.
Take out the BODY BRACKET.
Take out the MAIN UNIT.
(1) Disconnect the connector [CN801:7pin (MAIN DRIVE
PWB)], [CN802:3pin (OPTICAL BLOCK COOLING FAN)],
[CN803:3pin (LAMP COOLING FAN)] and [CN804:4pin
(LAMP BALLAST UNIT)].
(2) Remove 1 screw [ C ].
(3) Take out the FAN CONTROL PWB.
3.1.28 REMOTE SENSOR PWB
Take out the BODY COVER.
Take out the BODY BRACKET.
Take out the MAIN UNIT.
(1) Remove 1 screw [ D ].
(2) Take out the REMOTE SENSOR PWB.
3.1.29 OPTICAL / DRIVE ASS’Y
Take out the BODY COVER.
Take out the BODY BRACKET.
Take out the MAIN UNIT.
(1) Remove 2 screws [ E ].
(2) Take out the SHADE COVER.
(3) Remove 2 screws [ F ].
(4) Take out the FRONT SHADE BRACKET.
(5) Remove 7 screws [ G ].
(6) Slightly raise and take out the OPTICAL / DRIVE ASS’Y.
(7) Peel off the shield (copper film) tapes.
NOTE :
• The OPTICAL / DRIVE ASS’Y contains precision optical
components.
Handle carefully and avoid imparting strong shock.
OPTICAL / DRIVE ASS’Y construction
1) Optical block :
(D-ILA device, PBS, Field lens, Integrater, Mirror etc.)
2) Projection lens
3) Optical base
4) MAIN DRIVE PWB ASS’Y
5) Top duct
6) Shield tape
• When not performing repair work, attach the cap on the
lens to preventing dust from covering.
When mounting to the set, make sure the front of the lens
side is in contact with the cushion on the body side.
When installing this kit (OPTICAL/DRIVE ASS'Y) to the set,
first mount the FRONT SHADE BRACKET and SHADE
COVER (with cushion) to the kit (lens section).
• Do not leave the OPTICAL / DRIVE ASS’Y removed for
long time to prevent soiling from dust.
3.1.30 MAIN DRIVE PWB
Take out the BODY COVER.
Take out the BODY BRACKET.
Take out the MAIN UNIT.
(1) Take out the TOP DUCT PLATE.
(2) Remove 2 screws [ H ].
(3) Take out the TOP DUCT.
(4) Take out the SHIELD TOP CASE.
(5) Remove 4 screws [ I ].
(6) Take out the MAIN DRIVE PWB.
(7) Take out the SHIELD PLATE.
(8) Slightly raise and take out the OPTICAL BLOCK.
3.1.31 OPTICAL BLOCK COOLING FAN
Take out the BODY COVER.
Take out the BODY BRACKET.
Take out the MAIN UNIT.
(1) Remove 3 screws [ J ].
(2) Take out the SIROCCO TOP CASE.
(3) Remove 3 screws [ K ].
(4) Take out the OPTICAL BLOCK COOLING FAN.
3.1.32 LAMP COOLING FAN
Take out the BODY COVER.
Take out the BODY BRACKET.
Take out the MAIN UNIT.
(1) Remove 2 screws [ L ].
(2) Take out the LAMP FAN BRACKET ASSY.
(3) Remove 4 screws [ M ].
(4) Take out the LAMP COOLING FAN.
3.1.33 LAMP BALLAST UNIT COOLING FAN
Take out the BODY COVER.
Take out the BODY BRACKET.
Take out the MAIN UNIT.
(1) Remove 3 screws [ N ].
(2) Remove 4 screws [ O ].
(3) Take out the COOLING FAN (LAMP BALLAST UNIT).
3.1.34 LAMP BALLAST UNIT
Take out the BODY COVER.
Take out the BODY BRACKET.
Take out the MAIN UNIT.
Take out the LAMP BALLAST UNIT COOLING FAN.
(1) Take out the wire of LAMP BALLAST UNIT.
(2) Remove 4 screws [ P ].
(3) Take out the BALLAST BRACKET BOTTOM.
(4) Remove 4 screws [ Q ].
(5) Take out the BALLAST COVER.
(6) Take out the LAMP BALLAST UNIT.
3.1.35 LAMP COVER SW PWB
Take out the BODY COVER.
Take out the BODY BRACKET.
Take out the MAIN UNIT.
(1) Remove 1 screw [ R ].
(2) Take out the LAMP COVER SW PWB.