Panasonic SA-MAX3500PU - Troubleshooting: No Sound (Aux)

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7.6. No Sound in Aux Mode
Switch to AUX Mode
Press Power Button of Unit
or Remote Control to Turn
ON the Unit
Change
accessory
cable
Check if AUX cable is
connected properly to
the other player
NG
Switch to FM
mode. Check if
have sound
Ok
NG
NG
OK
NG
1
2
Yes
No
connection
Yes
No
Sound
Check pin 11
of IC52
3.3V -> OK
Check pin 1 of
CN51 on Tuner
PCB.
3.3V Æ OK
NG
Check I2S
lines status.
R51/52/60
Check
Tun_INT pin 3
on
CN51. OK =
<0.3V
6
Change
LB6119/20
on tuner
pcb
Change
IC52 on
Tuner PCB
Change
L54 on
tuner pcb
Change
IC52 on
Tuner PCB
Change
IC52 on
Tuner PCB
Check Tun_Rst
pin 9 on CN51.
OK=<0.3V
Change
IC52 on
Tuner PCB
7
OK
OK
Check above
pins form
SOC IC
Change
SOC IC
PCB
NG
3
4
End
Check status of
I2C lines
SCL/SDA. R55/56
at Tuner PCB
OK
N
OK
Change
IC52 on
tuner PCB
5