Sony KLV-22EX300 Service Manual page 58

KLV-22, 26, 32 EX300, 32, 40, 46 EX400
3-2-2. Flowchart B - Main Speaker No Sound
NG
Correct UI
NG
Change
spk wire
NG
Change
main spk
Refer "Standby
LED Blink"
3-2-3. Flow Chart C -Monitor Out No Sound
RM-GA019
Main Spk No
Sound
Audio UI Setting, ok?
OK
Spk Wire,
Connector, ok?
OK
Spk Impedance
7~8ohm, ok?
OK
F4001
Ok?
OK
NG
CN6200 pin1, 12.6V ok?
OK
A
Monitor Out No
Sound
Audio UI Setting, ok?
RCA cable,
target unit, ok?
C4075 -> 9V
or F6300 -> 0ohm
or R4095 -> 3V, ok?
Change BAA Board
IC4002 pin1 -> 3.3V
IC4002 pin2 -> 1.8V
L4004, L4005,
L4006, L4007 -> 6~7Vdc, ok?
NG
NG
OK
NG
RCA cable
/ target unit
OK
NG
OK
– 58 –
A
NG
Ok?
OK
NG
OK
Change BAA Board
Correct UI
Change
Vcc NG /
Main IC
NG
Amp IC /
Main IC NG
Amp IC NG