Panasonic SB-HWA250GA, Руководство по обслуживанию

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13
7 Troubleshooting Guide
7.1 Main Unit (SU-HTB250)
7.1.1 No power
7.1.2. Function indicator LED no light up
7.1.3. Bluetooth® pairing failure
Function indicator LED no light up
No power
Press the Power
button on the unit
to turn on the unit.
Press [INPUT]
button on the
remote control.
Connect BD or
DVD device to OPT.
Sound can be
heard.
OK
NG
Change
Main PCB
Check the Main U16
Pin 5 at “5.2V”
[Refer to check point②]
or Check the Main
C117~U16
Pin 8 at “3.3V”
[Refer to check point③]
NG
Change
Main PCB
OK
Change LED PCB
Still No Display
Change
Main PCB
Check the cable is
connected correctly
(Main CP2 to IR CN2)
Connect correctly or
change the cable
NG
OK
Press the Power
button on the unit to
turn on the unit.
Change
Power PCB
NG
NG
OK
Check the Main C133~C165
power output at 24V
[Refer to check point ①]
Check the Main U16
Pin 5 for 5.2V
[Refer to check point②]
LED not light up.
Check the cable is
connected correctly
(Main CP1 to Power CN2)
Connect correctly or
change the cable
NG
OK
Change
Main PCB
Check the Main C117~U16
Pin 8 for 3.3V
[Refer to check point③]
OK
NG
Change
Main PCB
Change
Main PCB
OK
Change IR PCB
OK
Check the cable is
connected correctly
(IR CN3 to LED CN5)
NG
Check the cable is connected
correctly (Main CP2 to IR CN2)
Change IR PCB
Check the cable is connected
correctly (IR CN3 to LED CN5)
Change LED PCB
OK
NG
OK
NG
Connect
correctly or
change the cable
NG
Connect correctly or
change the cable
Connect correctly or
change the cable
NG
NG
Function indicator LED no light up
No power
Press the Power
button on the unit
to turn on the unit.
Press [INPUT]
button on the
remote control.
Connect BD or
DVD device to OPT.
Sound can be
heard.
OK
NG
Change
Main PCB
Check the Main U16
Pin 5 at “5.2V”
[Refer to check point②]
or Check the Main
C117~U16
Pin 8 at “3.3V”
[Refer to check point③]
NG
Change
Main PCB
OK
Change LED PCB
Still No Display
Change
Main PCB
Check the cable is
connected correctly
(Main CP2 to IR CN2)
Connect correctly or
change the cable
NG
OK
Press the Power
button on the unit to
turn on the unit.
Change
Power PCB
NG
NG
OK
Check the Main C133~C165
power output at 24V
[Refer to check point ①]
Check the Main U16
Pin 5 for 5.2V
[Refer to check point②]
LED not light up.
Check the cable is
connected correctly
(Main CP1 to Power CN2)
Connect correctly or
change the cable
NG
OK
Change
Main PCB
Check the Main C117~U16
Pin 8 for 3.3V
[Refer to check point③]
OK
NG
Change
Main PCB
Change
Main PCB
OK
Change IR PCB
OK
Check the cable is
connected correctly
(IR CN3 to LED CN5)
NG
Check the cable is connected
correctly (Main CP2 to IR CN2)
Change IR PCB
Check the cable is connected
correctly (IR CN3 to LED CN5)
Change LED PCB
OK
NG
OK
NG
Connect
correctly or
change the cable
NG
Connect correctly or
change the cable
Connect correctly or
change the cable
NG
NG
Connection of
Bluetooth® device
(
The bluetooth LED is lighted
)
Sound output
Bluetooth® Pairing failure
No problem found
Change
LED PCB
NG
Go to
“No Sound (Bluetooth®)”
NG
OK
OK
OK
Press the Power
button on the unit to
turn on the unit.
Press [ ]
button on the
unit to select
“BLUETOOTH”.
Go to
“No Key Function”
The bluetooth light is
quick flashing
Press and hold
[ ]
for 4sec. on the unit.
NG
NG
Change
Main PCB
OK
No Key Function
Connect the AC
mains lead
Check the Main
C117~U16 Pin 8
at “3.3V”
[Refer to check point ③]
Change
Main PCB
NG
OK
Change
Key PCB
NG
Check the cable is
connected correctly
(Main CP4 to KEY CN4)
Connect correctly or
change the cable
OK
The Bluetooth LED
is flashing
OK
Go to “Function
indicator LED no
light up”
NG
Press remote control
“Power” button to
Power ON unit
OK
Go to “No Power”
NG
3.3V at Pin 2/3/4/5/6
of Main CP4
[Refer to check point
④]
NG
Change
Main PCB
OK
3.3 V at Pin 2/3/4/5/6
of Key CN4
[Refer to check point
⑤]
NG
OK