Optics Block Assembly And Lamp Duct Removal; Lamp Duct Block Disassmbly - Sony KDS-50A3000 Service Manual

1-6. OPTICS BLOCK ASSEMBLY AND LAMP DUCT REMOVAL

1
Remove 1 screw from the Adjuster Cover,
+PVTP2 4x16
2
Remove 2 screws from the Adjuster Block and
the Supporter, +PWHTP2 4x25
3
Remove 2 screws from the Lamp Duct, +PVTP2
4x16
4
Gently pull out Optics Block from cabinet.
Caution: When replacing the Optics Unit Block
Assembly be sure to remove any dust particles.

1-6-1. LAMP DUCT BLOCK DISASSMBLY

1
Remove 1 screw from the Upper Duct,
+BVTP2 4x16
2
Disconnect 2 connectors from the Power
Supply (Ballast Unit).
3
Remove 1 screw from the Power Supply,
+BVTP2 4x16
4
Remove 1 screw from the
Power Supply, +BVTP2 4x16
5
Using caution not to damage the
HV wires, push the HV Cable through
the Plug Holder.
(See Appendix C for illustrations.)
Note: To remove each duct, gently lift the tabs to
release from the hooks.
6
Carefully detach from the Optics Block.
7
Remove 1 screw from the T board,
+BVTP 3x12 TYPE2 IT-3
8
Disconnect 1 connector from the T board.
9
Disconnect 1 connector from the S2 board.
10 Remove 2 screws from the Fuse Holder,
+BVTP 3x12 TYPE2 IT-3
KDS-50A3000/55A3000/60A3000
Optics Block
Lamp Duct Unit
3
Intake Duct (F)
Turn Rivet
D.C. Fan (80x80)
Optics Block
Note:The D.C. Fan is secured to the Optics Block Assembly with Turn Rivet screws.
To remove these screws use a screw driver to unscrew the screw until it lifts slightly
above the rivet then pull the screw and the rivet out from the fan.
(Refer to the illustration to the left.)
Adjuster Supporter (V)
4
Adjuster
Block (V)
Optics Block
2P Connector
(Thermal Fuse)
10
Fuse Holder
S2 Board
Fuse Sheet
Fuse Plate
6
4
Lamp Duct (R)
Plug Holder
Lamp Duct (F)
5
HV Cable (Ballast Plug)
KDS-50A3000/55A3000/60A3000
2
Adjuster Cover
Adjuster Plate (H)
Exhaust Duct (U) 1
2
Power Supply
9
(Ballast Unit)
Fan (DC Motor)
Fan Cushion
8
Exhaust Duct (L)
7
T Board
1
3
13