Panasonic SU-HTB488EG Service Manual - Page 17
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Connect the AC
mains lead
7.1.7.
No Sound
7.1.7.1. No Sound (Bluetooth®)
Go to "Bluetooth® Pairing failure"
Press the Power
button to turn on
the unit.
Press the Power
P
th P
button to turn on the
"Bluetooth® Pairing failure"
unit
Check the FFC cable is
connect correct (Main XP9 to
Connect correct or
Connect correct or
7.1.7.2. No Sound (Optical)
Press the Power
button to turn on the
unit
[Refer to check point ④]
No Sound (Bluetooth®)
If the pairing failure,
p
g
,
OK
Connect
Play sound
Bluetooth® device
NG
select "HDMI(ARC)"
l
t "HDMI(ARC)"
Go to
source and connect
TV with ARC to HDMI
OK
LED XP1)
NG
change
FFC cable
Select "OPTICAL"
source and connect
BD/DVD device
3.3 V
3 3 V
NG
NG
at "STB_3V3"
No HDMI OUT
No sound
NG
No problem
No output
found
NG
still no sound
Change
LED PCB Unit
No problem found
No Sound (Optical)
No output
NG
No problem found
17
Change
Main PCB Unit
Yes
3.3 V
at "STB_3V3"
[Refer to check point ③]
NG
Yes
Y
Change
Change
Main PCB Unit
Main PCB Unit
OK
Change
Main PCB Unit
OK
Change
Main PCB Unit
OK
No problem
found