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7 Troubleshooting Guide
7.1.
No Power or No Display
Press Power Button
No Display on
of Unit or Remote Control
FL Panel
to Turn ON the Unit
OK
OK
Check DC-DC IC (IC2103)
Measured 15V at Pin#10
4
[refer to check point
]
NG
Change IC2103
®
7.2.
Bluetooth
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
7.3.
No Key Function
Press Power Button
If Cannot
or CD Door Open of Unit
Power ON
to Turn ON the Unit
(No Display)
7.4.
No Remote Control Function
Press Remote Control
If Cannot
Power Button
Power ON
to Power ON the Unit
(No Display)
(Ensure have Battery & New)
Caution:
OK
1. AC Cord Plug-out
2. Check Fuse(F1) = 0 ohm
1
1
[refer to check point
-
]
NG
Change SMPS
Module
Check LDO IC
Check LDO IC
OK
(IC1000)
(IC2108)
Measured 3.3V at Pin#2
Measured 3.3V at Pin#3
5
[refer to check point
]
[refer to check point
NG
N
G
Change IC1000
Change IC2108
Pairing Failure
OK
Press [PAIRING] on the Set
or Remote Control
Display "BLUETOOTH"
OK
Use Remote Control
to Turn ON the Set
NG
Check Main PCB
Press the Power Button
OK
of the Unit
to Turn ON the Set
NG
Check LDO IC
(IC2108)
Measured 3.3V at Pin#2
6
[refer to check point
]
NG
Change IC2108
Check Primary E-Cap
OK
Check Secondary Cap. (C9 & C22)
(C1 & C2)
Measured 150V or more
[refer to check point
2
2
[refer to check point
-
]
NG
Change SMPS
Module
OK
Check LDO IC (IC2107)
Measured 1.5V at Pin#3
7
[refer to check point
]
6
]
N
G
Change IC2107
O
K
"PAIRING" will display and
blinking while handphone or other
devices are Connecting to the Set
NG
option 1
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
option 2
Check Main PCB
OK
FL Display
Press Power Buttons
Show "HELLO"
or Other Buttons
NG
Check and ensure that
Panel FFC is
properly inserted
NG
If buttons are not working
Check Panel P.C.B and
Main P.C.B
OK
FL Display
Press Remote
Show "HELLO"
Control Buttons
NG
Check IR Sensor (IR6500)
on Main PCB
28
Measured 38.5V
3
3
-
]
NG
Change SMPS
Module
Check connector
OK
OK
If No Display on
(CN2506)
FL Panel
Measured 15V at Pin#8
8
[refer to check point
]
NG
NG
Check Main P.C.B
Change Panel
FFC connection
The set will displayed the
O
K
No Problem
"CONNECTED" followed
Found
by "BLUETOOTH"
NG
Check BT P.C.B on
Main P.C.B
OK
OK
All Buttons
No Problem Found
are Working
OK
OK
All Remote Control
No Problem Found
Buttons are Working
PCB
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