Main Board - Sony WX-850BT Service Manual

3-5.

MAIN BOARD

Note 1: When the complete MAIN board is replaced, it is necessary
to replace knob (VOL) assy (Ref. No. NFC1) simultaneously.
Also, the destination setting, Bluetooth operation check and
Bluetooth information writing is necessary. Refer to "DESTI-
NATION SETTING METHOD" on page 5, "BLUETOOTH
FUNCTION CHECKING METHOD USING A SMART-
PHONE OR CELLULAR PHONE" on page 8 and "BLUE-
TOOTH INFORMATION WRITING METHOD" on page 9.
Note 3: The sheet heat transfer must be pasted
on this position.
However, when the MAIN board is
removed, the sheet heat transfer may
adhere to the MAIN board.
Paste the sheet heat transfer on this
place again then.
front side
MAIN board
hole
4 MAIN board
Note 2: When installing the MAIN board,
align the hole and claw.
sheet heat transfer
guide line
front side
claw
chassis block
WX-850BT/900BT/900BTM
1 screw
(PTT2.6 8)
hole
rear side
3 claw
chassis block
2 two ground point screws
(PTT2.6 6)
1 screw
(PTT2.6 8)
25