Sony KDL-22EX550 Service Manual page 111

APPENDIX-1
PROCEDURE TO REMOVE OF REAR COVER
4. Holding the rear cover so that it doesn't move, and then release the side hook.
Note:
Without "holding Rear cover by hand", Rear cover hooks won't be released easily. (Possibility of damage to Rear cover hooks or Bezel Clips.)
Bezel hook
Rear cover hook
PAN
Bezel Rear cover
EL
fitting is tighten
by Rear cover
deformation
Bezel Rear cover fitting section
<Without holding Rear cover>
<Rear cover deformation>
111
KDL-22/26EX550,553,555,32EX650,653,655(AEP/UK/IT)