Sony KLV-26NX400 / KLV-32NX400 / KLV-32NX500 / KLV-40NX500 (serv.man2) Service Manual ▷ View online
-32-
KLV-26,32 NX400(S/B), 32,40 NX500
RM-GA018
Audio Problem
Main Speaker No
Sound
HP Out No
Sound
Mon Out No
Sound
*V1, V2, V3, D1
or
PC/HDMI analog
no sound?
Analog RF
no sound?
HDMI Audio
no sound?
USB Audio
no sound?
Refer “Main
Speaker No
Sound”
* V1 = Video1, V2 = Video2,
V3 = Video3, D1 = Component1
Refer “Mon Out
No Sound”
Refer “HP Out
No Sound”
Refer “Analog
Audio Input
No Sound”
Refer “Analog RF
No Sound”
Refer “HDMI
Audio
No Sound”
Refer “USB Audio
No Sound”
3-2-1. FLOWCHART A
3-2. Troubleshooting AUDIO Problem
-33-
KLV-26,32 NX400(S/B), 32,40 NX500
RM-GA018
OK
Audio UI Setting, ok?
Main Spk No
Sound
Spk Wire,
Connector, ok?
Spk Impedance
7~8ohm, ok?
CN6200 pin1, 12.6V ok?
F4001
Ok?
IC4002 pin1 -> 3.3V
IC4002 pin2 -> 1.8V
IC4002 pin2 -> 1.8V
Ok?
NG
Correct UI
Change
spk wire
Change
main spk
Change BAA Board
NG
NG
OK
OK
OK
OK
NG
NG
Refer “Standby
LED Blink”
L4004, L4005,
L4006, L4007 -> 6~7Vdc, ok?
Amp IC
NG
Amp IC /
Main IC
NG
A
A
NG
OK
OK
NG
3-2-2. FLOWCHART B (Main Speaker No Sound)
-34-
KLV-26,32 NX400(S/B), 32,40 NX500
RM-GA018
Mon Out No
Sound
Audio UI Setting, ok?
NG
Correct UI
RCA cable,
target unit, ok?
C4075 -> 9V
or F6300 -> 0ohm
or R4095 -> 3V, ok?
Change
RCA cable
/ target
unit
Vcc NG /
Main IC NG
Change BAA Board
OK
OK
OK
NG
NG
3-2-3. FLOWCHART C (Monitor Out No Sound)
-35-
KLV-26,32 NX400(S/B), 32,40 NX500
RM-GA018
HP Out No
Sound
HP cable,
ok?
R4094 -> 3V, ok?
JL4011 -> 3.3V, ok?
(when insert HP)
Change
HP cable
Detection
NG
Main IC
NG
Change BAA Board
OK
OK
NG
NG
NG
OK
3-2-4. FLOWCHART D (HP OUT No Sound)
Click on the first or last page to see other KLV-26NX400 / KLV-32NX400 / KLV-32NX500 / KLV-40NX500 (serv.man2) service manuals if exist.