SMPS POWER
Power TV On.1.
PS_ON √ . 2Vdc (when off) changes to 3.3Vdc (on)
May already be On if IoT USB is loaded or TV Smart Things Hub mode is active. -
if voltage error or no change.2.
Jog Function Control Test. √
If OK replace Main Board.3.
All √ A13V supplies to full voltage level 12.7VDC.
If any wrong voltage, remove the SMPS connector to Main Board.4.
A13V again for 12.7VDC. √
If OK replace Main Board.5.
If still wrong voltage replace SMPS.6.
OD √ (Over Voltage Detect) : 3.3Vdc (Operating Normal)
If 0V or changing, an SMPS or Panel error exists. Perform Backlight Test.7.
BLU_PWM √ 0V- Off to approx 1 – 3.3 V pending Backlight dim level
If missing/error replace √ Main Board.
Fuse
CNM803
1 Fail Count 7 A13V
2 ANA-DIM 8 POWER_ON/OFF
3 A13V 9 A13V
4 OD_ON/OFF 10 GND
5 A13V 11 GND
6 BLU_PWM 12 GND
CNL802
1 2+ 9 1+
2 NC 10 NC
3 NC 11 NC
4 2- 12 1-
5 NC 13 NC
6 NC 14 NC
7 NC 15 IF2
8 NC 16 IF1
CNL802
CNM803
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