Picture Tube Removal - Sony FD Trinitron KV-25FX30B Service Manual

2-6. 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.
Coated Earth
Ground Strap
Removal of the Anode-Cap
* REMOVING PROCEDURES.
a
1
Turn up one side of the rubber cap in
the direction indicated by the arrow a
How to handle the Anode-Cap
1. To prevent damaging the surface of the anode-cap do not use
sharp materials.
2. Do not apply too great a pressure on the rubber, as this may cause
damage to the anode connector.
3. A metal fitting called a shatter hook terminal is fitted inside the
rubber cap.
4. Do not turn the rubber foot over excessively, this may cause
damage if the shatter hook sticks out.
9
8
1. Discharge the anode of the CRT and remove the anode cap.
2. Release the EHT lead from its CRT support bracket.
3. Unplug all interconnecting leads from the Deflection yoke,
degaussing coils, Rotation coil and CRT grounding strap.
4. Remove the C Board from the CRT.
5. Loosen the VM Block fixing screw and remove.
6. Remove the chassis assembly.
7. Loosen the Deflection yoke fixing screw and remove.
8. Remove the Degaussing Coil holders.
9. Place the set with the CRT face down on a cushion.
10. Unscrew the four CRT fixing screws [ located on each CRT
corner ] and remove the CRT.
11. Remove the Degaussing Coils.
Remove the CRT grounding strap and spring tentioners.
[Take care not to handle the CRT by the neck.]
b
2 Using a thumb pull up the rubber cap
firmly in the direction indicated by the
arrow b
14
10
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
1
2
7
5
4
3
6
c
Anode button