Read Sony HMD-A240R Service Manual online
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HMD-A240R
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1-4. PICTURE TUBE REMOVAL
ANODE CAP REMOVAL
WARNING: 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 coated earth ground strap of CRT.
NOTE: After removing the anode cap, short circuit the anode of the picture tube and the anode cap to either the metal chassis, CRT shield, or carbon
painted on the CRT.
REMOVAL PROCEDURES
HOW TO HANDLE AN ANODE CAP
1. Do not use sharp objects which may cause damage to the surface of the
anode cap.
2. To avoid damaging the anode cap, do not squeeze the rubber covering too
hard. A material fitting called a shatter-hook terminal is built into the rubber.
3. Do not force turn the foot of the rubber cover. This may cause the shatter-hook
terminal to protrude and damage the rubber.
Turn up one side of the rubber cap in the
direction indicated by arrow a .
Use your thumb to pull the rubber
cap firmly in the direction indicated
by arrow b .
When one side of the rubber cap separates from
the anode button, the anode cap can be removed
by turning the rubber cap and pulling it in the
direction of arrow c .
Place the unit face down on a cushion to avoid
scratching.
Remove the anode cap.
Remove (4) screws (Screw (5) Tapping) from
the CRT.
Remove the picture tube shield.
Remove the deflection yoke.
Remove the neck assembly.
Remove the A Board.
Remove the demagnetization coil.
Remove (2) screws (BVTP 4 x 16) from the
chassis assembly and slide out to remove.
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