Panasonic SC-HTB690EB Service Manual page 16

7.1.4. No Key Function
Connect the AC
mains lead
Connect the AC
mains lead
7.1.5. No remote control function
Connect the AC
mains lead
Connect the AC
mains lead
7.1.6. No HDMI out
T Touch the Power h th P
button to turn on the
unit
Touch the Power
button to turn on the
unit
No Key Function
No Key Function
[Refer to check point ⑥]
[Refer to check point ⑥]
No remote control function
No remote control function
at "STB_3V3"
[Refer to check point ⑥]
at "STB_3V3"
[Refer to check point ⑥]
No HDMI OUT
select "BD/DVD"
source
and connect BD or
DVD device to HDMI
No Sound (Optical)
select "TV" source
and connect optical
device
OK
3.3 V
at "STB_3V3" OK
3.3 V
at "STB_3V3"
No
No
Change
Main PCB
Change
Main PCB
OK
3.3 V
OK
3.3 V
NG
NG
Change
Main PCB
Change
Main PCB
check 1.7V at check the FFC cable
OK OK
"HDMI_1.7V" is connect correct
[Refer to check
point ⑨]
NG
Change
Main PCB
check 3.3V at check the cable is
OK
"VDD3.3_OP"
[Refer to check
point ⑩] point ⑩]
NG
Change
Main PCB
16
Change Touch PCB
Change Touch PCB
NG
NG
Change
Main PCB
Change
Main PCB
Change FL PCB
Change FL PCB
NG
NG
Change
Main PCB
Change
Main PCB
No N
Change
HDMI PCB
(Main XP13 to
HDMI CN1000)
No
connect correct connect correct
or change
FFC cable
No
connect correct
(Main XP112 to
Optical PCB
Optical XP1) Optical XP1)
No
connect correct
or change the
cable
Change