Read Sony KLV-22EX300 / KLV-26EX300 / KLV-32EX300 / KLV-32EX400 / KLV-40EX400 / KLV-46EX400 Service Manual online
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KLV-22, 26, 32 EX300, 32, 40, 46 EX400
RM-GA019
3-2-8. Flowchart H - USB Audio No Sound
3-2-9. Flowchart I - 3x Blinking For Audio Error
USB Audio
input no sound
USB thumbdrive,
ok?
*USB audio
format, ok?
Change USB
thumbdrive
Change to
supported
format
NG
OK
NG
OK
Change BAA Board
* Please refer to IM for supported USB
audio format.
OK
OK
TV 3x blinking
Remove speaker
connector (CN4000), ok?
Speaker Impedance
7~8ohm, ok?
F4001
Ok?
Change
speaker
wire
Change
main
speaker
High Z
(>100Kohm)
NG
OK
L4004, L4005, L4006 &
L4007 impedance to ground.
Low Z
(<100Kohm)
Check impedance
CN6200 pin1 <-> C4049 (+ve)
CN6200 pin1 <-> C4050 (+ve)
CN6200 pin1 <-> C4050 (+ve)
High Z
(>0ohm)
Low Z
(~0ohm)
NG
OK
NG
B
B
Change BAA Board
Amp IC NG
Output short to
GND / Amp IC
NG
CN6200 pin1, 12.6V ok?
Refer "Standby
LED Blink"
NG
OK
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