Sony KD-55S8500C Service Manual page 60

DISASSEMBLY
1-2. KD-65S8500C
1-2-24. GASKET (BMF)
BMFW B-Side view Five attachment positions of Gasket
PWB P/N indication location
NOTE:
When you replace a BMFW board, it is necessary to stick five new GASKET on a new BMFW board.
GASKET (BMF): 4-566-117-01
However, please confirm PWB P/N before that.
If the PWB P/N is old type(1-894-595-11/21), need gaskets.
If the PWB P/N is new type(suffix -12/22 or later), no need gaskets.
*There is no problem even if you were mounting a gasket on new type(suffix -12/22 or later).
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KD-55/65S8500C(CH)