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4. Troubleshooting
4-1-3. TV POWER ON SEQUENCE TEST
•
65 inches
1
FAIL COUNT
2
7
A13V
8
1.
Power TV On
POWER ON/OFF
9
NOTE
•
There is an approx 20 second delay from PS-ON to off condition when the TV is powered off, and approx a 2
minute delay when the TV is first plugged into AC Power.
2.
If voltage error or no change:
Jog Function Control Test
9
3.
If OK replace Main Board
All
A13V
supplies for approx. 12.7VDC (see SMPS label)
9
4.
If any wrong voltages, remove SMPS connector to Main Board
All
A13V
again for 12.7VDC (see SMPS STBY/ON label)
9
5.
If OK replace
Main Board
6.
If still wrong voltage replace SMPS
OD_ ON/OFF
(Over Voltage Detect) 3.3Vdc : Operating Normal
9
7.
If 0V or changing, an SMPS or Panel error exists. Perform Backlight Test.
BLU_PWM
Backlight On/Off & Dim Control: 1Vdc – 3.3 Vdc depending on backlight dimming level for video.
9
•
If missing or error : Replace Main Board.
4-4
CNM801
Main Connector (POWER)
CNM801 (MAIN Connector)
ANA-DIM
3
Power On/Off
9
.2Vdc (when off) changes to 3.3Vdc (on)
A13V
4
OD ON/OFF
A13V
10
GND
<SMPS>
5
A13V
6
11
GND
12
PWM_BLU
GND
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