Panasonic SC-HTB690EB, Руководство по обслуживанию

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17
7.1.7. No Sound
7.1.7.1. No Sound (Bluetooth®)
7.1.7.2. No Sound (Optical)
No Sound (Bluetooth®)
If the pairing failure,
Go to “Bluetooth® Pairing failure”
Touch the Power
button to turn on
the unit.
Connect
Bluetooth® device
3.3 V
at “STB_3V3”
[Refer to check point ⑥]
No sound Play sound
Yes
OK
OK
Go to
“No Key Function”
NG No
No problem
found
Change
Main PCB
No
Sound
Output
No problem found
No No
OK
OK
Check PWM signal “HB_HP_1”
[Refer to check point ⑧]
No
OK
28 V at “HVDD”
[Refer to check point ⑦]
Change
Main PCB
No No
Change
Main PCB
No
Change
Main PCB
No HDMI OUT
T h th P
check 1.7V at check the FFC cable
OK
N
select “BD/DVD”
Touch the Power
button to turn on the
unit
“HDMI_1.7V”
[Refer to check
point ⑨]
NG
is connect correct
(Main XP13 to
HDMI CN1000)
OK
connect correct
No
No
Change
HDMI PCB
source
and connect BD or
DVD device to HDMI
Change
Main PCB
connect correct
or change
FFC cable
No Sound (Optical)
Touch the Power
button to turn on the
unit
check 3.3V at
“VDD3.3_OP”
[Refer to check
point ⑩]
check the cable is
connect correct
(Main XP112 to
Optical XP1 )
OK
No
Change
Optical PCB
select “TV” source
and connect optical
device
point ⑩]
NG
Optical XP1 )
Change
Main PCB
connect correct
or change the
cable
No
7.1.8. No NFC
No NFC
Touch the Power
button to turn on the
unit
check 3.3V at
“STB_3V3”
[Refer to check
point ⑥]
NG
check the cable is
connect correct (FL
XP2 to NFC XP10 )
OK
No
No NFC
Change
NFC PCB
select “Bluetooth”
source and try to
connect NFC device
NG
Change
Main PCB
connect correct
or change the
cable
No