Panasonic PT-53TW53G Service Manual page 22

8. Release CRT anode lead from CRT chassis wire clamp and all
other wires from holders.
9. Loosen a screw that secures the DY and remove it from the CRT
neck.
Caution:
To insure protection against x ray radiation, the lens must be
mounted in place at all times when power is applied to the PTV
CRT replacement
1. Remove CRT focus lens assembly (4 screws)
Focus pack location
CRT assembly
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