Denon AVR-2809CI Service Manual page 21

(2) Remove the screws.（ねじをはずす。 ）
POWER UNIT
EU model
Top view
UCON JUNCTION UNIT
PRIM/CPU SUPPLY UNIT
POWER UNIT
EC, E2, E1C, JP model
Top view
UCON JUNCTION UNIT
PRIM/CPU SUPPLY UNIT
Please refer to "EXPLODED VIEW" for the disassembly method of PRIM/CPU SUPPLY UNIT ASSY.
PRIM/CPU SUPPLY UNIT ASSY のはずしかたは "EXPLODED VIEW" を参照してください。
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AVR-2809CI/AVR-989/AVR-2809/AVC-2809