Sony KLV-22BX300 Service Manual page 52

3-2-2. FLOWCHART B (Main Speaker No Sound)
NG
Correct UI
NG
Change
spk wire
NG
Change
main spk
NG
Refer "Standby
LED Blink"
Main Spk No
Sound
Audio UI Setting, ok?
OK
Spk Wire,
Connector, ok?
OK
Spk Impedance
7~8ohm, ok?
OK
F4001
Ok?
OK
CN6200 pin1, 12.6V ok?
OK
A
A
IC4002 pin1 -> 3.3V
IC4002 pin2 -> 1.8V
Ok?
OK
L4004, L4005,
L4006, L4007 -> 6~7Vdc, ok?
OK
NG
-51-
KLV-22, 26, 32 BX300, 40 BX400
KLV-26,32 NX400(S/B), 32,40 NX500
RM-GA018
NG
Amp IC /
Main IC
NG
NG
Amp IC
NG
Change BAA Board
RM-GA019