Sony KD-49X7 D Series Service Manual page 152

Bluetooth malfunction
Voice Remote doesn't work
Or
3D-glasses (Active) doesn't work
Or
Bluetooth Keyboard/Mouse doesn't work
OK
Home > Settings >
Bluetooth Settings
Can read
Near discoverable
Bluetooth Device
NG
else
Check harness
connection is OK
between BT and Bxx
OK
Change BT module
OK
BT module
TV Business Division
Check BT antenna
Connection is OK
Connect properly
NG
NG
Connect properly
NG
Change harness
NG
Between Bxx board
and BT
OK
Main Harness
OK
Bluetooth Keyboard/Mouse operation manual
NG
OK
Loose BT antenna
connection
OK
Loose harness
NG
Change Bxx board
152
Please refer
Voice Remote manual
3D-glasses (Active) manual
Or
152