Sony KV-32FQ85B Service Manual ▷ View online
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Before completely removing the rear cover disconnect the
speaker connector which is located on the inside of the set.
speaker connector which is located on the inside of the set.
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SECTION 2 DISASSEMBLY
2-1. Rear Cover Removal
To remove lift the main bracket rear slightly and slide the
chassis away from the beznet. Ensure that the interconnecting
leads are released from their purse locks to prevent damage
being caused.
chassis away from the beznet. Ensure that the interconnecting
leads are released from their purse locks to prevent damage
being caused.
When refitting the chassis ensure that the main bracket is
located in the beznet guide slots before sliding the chassis
forwards. Refit the inter-connecting leads in their respective
purse locks.
located in the beznet guide slots before sliding the chassis
forwards. Refit the inter-connecting leads in their respective
purse locks.
2-3. Chassis Removal and Refitting
2-2. Speaker Connector Disconnection
Remove the rear cover fixing screws indicated and pull the
rear cover backwards away from the set. Take care when
removing the rear cover not to damage the speaker cable
[Disconnect the speaker connector] a speaker is fitted inside
the rear cover.
rear cover backwards away from the set. Take care when
removing the rear cover not to damage the speaker cable
[Disconnect the speaker connector] a speaker is fitted inside
the rear cover.
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2-6. D2 Board Removal
To remove the D2 board remove the two screws circled,
release the clips circled and ease the board gently away from
the support bracket.
release the clips circled and ease the board gently away from
the support bracket.
Screws
Clips
2-7. D Board Removal
To remove the D board first remove the D2 bracket by
removing the two screws circled and releasing the four
clips (two on each side of the bracket). The D board can
then be removed using the same method as the G board
but with the necessity to remove only one screw from the
middle of the D board.
removing the two screws circled and releasing the four
clips (two on each side of the bracket). The D board can
then be removed using the same method as the G board
but with the necessity to remove only one screw from the
middle of the D board.
Screws
Clips
To remove the G Board remove the two screws from the
middle of the board, release the clips circled and ease the
board gently away from the support bracket.
middle of the board, release the clips circled and ease the
board gently away from the support bracket.
Clips
2-4. Service Position
2-5. G Board Removal
To place the chassis in the service position, insert the main
bracket firmly into the T-slot located on the left corner of the
beznet as indicated (see inset). To gain access to the underside
of the boards follow the instructions on page 16. [Removal
and Replacement of the main bracket bottom plates].
bracket firmly into the T-slot located on the left corner of the
beznet as indicated (see inset). To gain access to the underside
of the boards follow the instructions on page 16. [Removal
and Replacement of the main bracket bottom plates].
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How to handle the Anode-Cap
1 .
To prevent damaging the surface of the anode-cap do not use
sharp materials.
sharp materials.
2 .
Do not apply too great a pressure on the rubber, as this may cause
damage to the anode connector.
damage to the anode connector.
3 .
A metal fitting called a shatter hook terminal is fitted inside the
rubber cap.
rubber cap.
4 .
Do not turn the rubber foot over excessively, this may cause
damage if the shatter hook sticks out.
damage if the shatter hook sticks out.
Removal of the Anode-Cap
2-8. Picture Tube Removal
WARNING:
BEFORE REMOVING
THE ANODE CAP
High voltage remains in the CRT even
after the power is disconnected. To
avoid electric shock, discharge CRT
before attempting to remove the anode
cap. Short between anode and CRT
coated earth ground strap.
after the power is disconnected. To
avoid electric shock, discharge CRT
before attempting to remove the anode
cap. Short between anode and CRT
coated earth ground strap.
Coated Earth
Ground Strap
Ground Strap
1. Discharge the anode of the CRT and remove the anode cap.
2. Unplug all interconnecting leads from the Deflection yoke, neck
2. Unplug all interconnecting leads from the Deflection yoke, neck
assy, degaussing coils and CRT grounding strap.
3. Remove the C Board from the CRT.
4. Remove the chassis assembly.
5. Loosen the Neck assembly fixing screw and remove.
6. Loosen the Deflection yoke fixing screw and remove.
7. Place the set with the CRT face down on a cushion and remove
4. Remove the chassis assembly.
5. Loosen the Neck assembly fixing screw and remove.
6. Loosen the Deflection yoke fixing screw and remove.
7. Place the set with the CRT face down on a cushion and remove
the Degaussing Coil holders.
8. Remove the Degaussing Coils.
9. Remove the CRT grounding strap and spring tensioners.
10. Unscrew the four CRT fixing screws [ located on each CRT
9. Remove the CRT grounding strap and spring tensioners.
10. Unscrew the four CRT fixing screws [ located on each CRT
corner ] and remove the CRT.
[Take care not to handle the CRT by the neck.]
[Take care not to handle the CRT by the neck.]
Anode button
a
REMOVAL PROCEDURE.
Turn up one side of the rubber cap in
the direction indicated by the arrow a
the direction indicated by the arrow a
1
2 Using a thumb pull up the rubber cap
firmly in the direction indicated by the
arrow b
firmly in the direction indicated by the
arrow b
3 When one side of the rubber cap is
separated from the anode button, the
anode-cap can be removed by turning
up the rubber cap and pulling it up in
the direction of the arrow c
separated from the anode button, the
anode-cap can be removed by turning
up the rubber cap and pulling it up in
the direction of the arrow c
b
b
c
2
4
6
8
10
5
9
3
7
1
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For safety reasons, on no account should the plates be removed
and not refitted after servicing.
and not refitted after servicing.
REMOVAL AND REPLACEMENT OF THE MAIN
-
BRACKET
BOTTOM PLATES.
(1) REMOVING THE PLATES
In the event of servicing being required to the solder side of the printed wiring boards, the
bottom plates fitted to the main chassis bracket require to be removed. This is performed by
cutting the gates with a sharp wire cutter at the locations indicated by the arrows.
bottom plates fitted to the main chassis bracket require to be removed. This is performed by
cutting the gates with a sharp wire cutter at the locations indicated by the arrows.
Note : There are 2 plates fitted to the main bracket. Only remove the necessary plate to gain
access to the printed wiring board.
(2) REFITTING THE PLATES
Because the plates differ in size it is important that the correct plates are refitted in their original
location.
location.
Please note that the plates need to be rotated 180 degrees from their cut position to allow the
tabs to be fitted into their catch positions.
tabs to be fitted into their catch positions.
Tab
Catch
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