Panasonic SC-UA7E

18
7 Troubleshooting Guide
7.1. No Power or No Display
7.2. Bluetooth
®
Pairing Failure
7.3. No Key Function (Touch Panel)
7.4. No Remote Control Function
Press the Power Button
of Unit or Remote Control
to Turn ON the Unit
No Display on
FL Panel
Caution:
1. AC Cord Plug-out
2. Check Fuse(F1001) = 0 ohm
3. Check Fuse(F1401) = 0 ohm
4. Check Fuse(F1501) = 0 ohm
[ refer to check point 1 ]
Change SMPS PCB
Check Primary E-Cap (C1224)
Measured 400V or more
[refer to check point 4 ]
Change SMPS PCB
Change SMPS PCB
Change SMPS PCB
Check Standby Regulator IC
(IC2104/IC2108)
Measured 3.3V at Pin 2
[refer to check point 8 ]
OK
OK
OK
OK
OK
NG
NG
NG
NG
Check Secondary Cap. (C1706)
or Secondary Diode (D1703/D1705)
Measured +40
Change SMPS PCB
NG
Check Primary E-Cap (C1403)
Measured 200V or more
[refer to check point 2 ]
Check Secondary Diode (D1601)
Measured +5
[refer to check point 3 ]
Change Main PCB
NG
Check DC-DC Regulator IC
(IC2107)
Measured 1.55V at pin 3
[refer to check point 9 ]
Change Main PCB
NG
OK
If No Display on
FL Panel
Change Panel
PCB
OK
NG
[refer to check point 5 ]
Press the Power Button
of Unit or Remote Control
to Turn ON the Unit
Press [ PAIRING] on the Set
or Remote Control
Display " BLUETOOTH"
Change BT+Touch
Panel PCB Assembly
NG
"PAIRING' will display and
blinking while handphone or other
devices are Connecting to the Set
Do the Cold Start
AC Plug-out. Press and Hold
Power Button then
AC Plug-IN, wait to display "-------"
then will OFF the Set, back to start.
NG
Change BT+Touch Panel PCB Assembly
NG
option 1
option 2
The set will displayed the
"CONNECTED" followed
by "BLUETOOTH"
No Problem
Found
OK
KOKO
Press the Power Button
on the Unit
to Turn ON the Unit
If Cannot
Power ON
(No Display)
Refer to 7.1
OK
NG
Use Remote Control
to Turn ON the Set
FL Display
Show "HELLO"
OK
Press the Power Buttons
or Other Buttons
Check and Ensure that
Touch Panel Connector is
Properly Insert
NG
OK
All Buttons
are Working
If Buttons are not Working
Change the Touch
Panel PCB
NG
OK
No Problem Found
Press the Remote Control
Power Button
to Power ON the Unit
(Ensure have Battery & New)
If Cannot
Power ON
(No Display)
OK
NG
Press the Power Button
of the Unit
to Turn ON the Set
FL Display
Show "HELLO"
OK
Press Remote
Control Buttons
Change Remote Control
NG
OK
All Remote Control
Buttons are Working
OK
No Problem Found
Refer to 7.1
Change IR Sensor
/ Panel PCB
NG
No Problem Found
OK