TV POWER ON SEQUENCE
Power TV On.
1.
PS_ON
9
.
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.
9
If OK replace Main Board.
3.
All
9
A13V
supplies to
full voltage level
12.7VDC
.
see (SMPS label for approx. STBY and On voltage)
9
If any wrong voltage, remove the SMPS connector to Main Board.
4.
A13V
9
again for
12.7VDC
.
If OK replace Main Board.
5.
If still wrong voltage replace SMPS.
6.
OD
9
(Over Voltage Detect) : 3.3Vdc (Operating Normal)
If 0V or changing, an SMPS or Panel error exists.
7.
Perform Backlight Test.
8.
Backlight On/Off
9
0V Off to 5Vdc ON.
If missing/error replace
9
Main Board
.
[Backlight On/Off]
4-5
4. Troubleshooting
