TROUBLESHOOTING
- The flow chart shown below will help you to troubleshoot your Television set with it doesn't display normally. Each procedure offers a simple way to check for system errors. Before starting, ensure that there is a signal in and that the television is turned on.
Power LED indictor has no light.
|
||
Check CN14 PIN2 and CN15 Pin7=5V
|
Not
good
|
Change Power board assembly
|
Ok
|
||
Change IR board assembly
|
||
Power LED only indictor red light
|
||
Check CN15 Pin9=5V
|
Ok
|
Change Q3 or change IR board assembly
|
Not
good
|
||
Check U4 Pin54=3.3V
|
Ok
|
Change Q1 or Q6
|
Not
good
|
Change main board assembly
|
|
TV has picture but no sound
|
||
Press “Mute”function or adjust volume up to check the sound be
mute or not
|
||
Ok
|
||
Check speaker
unit 7~9 OHms
|
Not
good
|
Change speaker unit
|
Ok
|
||
Check CN8-Pin1 &Pin2=22~24V
|
Not
good
|
Change power board assembly
|
Ok
|
||
Check U33-Pin13 &Pin18=22~24V
|
Not
good
|
Change main board assembly
|
Ok
|
||
Check U31-Pin2=3.3V
|
Not
good
|
Change main board assembly
|
Ok
|
||
Check U32-Pin2=1.8V
|
Not
good
|
Change main board assembly
|
Not
good
|
||
Check U25-Pin1=8V
|
Not
good
|
Change main board assembly
|
TV
has sound, but no picture
|
||
Check CON16 Pin15 & Pin16&Pin17&Pin18=12V
|
Not
good
|
Change power board assembly
|
Ok
|
||
Check CON3 Pin7& Pin8 &Pin11&Pin12=24V
|
Not
good
|
Change power board assembly
|
Ok
|
||
Check U23 Pin2 3.3V
|
Not
good
|
Change main board assembly
|
Ok
|
||
Check U1,U2,U10,U29 voltage stable or not
|
Not
good
|
Change main board assembly
|
PART NUMBER & DESCRIPTION
YZ2100020492
YZ2100020495
YZ2100020496
YZ2100020497
YZ2100020498
YZ2100020500
YZ531Z09416300
YZ560010812402
YZ7607T320030000
|
MAIN BOARD ASSEMBLE
YPBPR AND R232 BOARD ASSEMBLE
SIDE AV AND EARPHONE BOARD ASSEMBLE
MAIN POWER SWITCH CONTROL
KEY CONTROL BOARD ASSEMBLE
REMOTE CONTROL HANDSET CLE-996
32" LCD POWER SUPPLY JSK4163-022
SPEAKER 8 OHM 10W
32" LG.PHILIPS LCD LC32WXN-SAC1 1366X7
|
PWB LOCATION
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