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