Samsung UN40KU7000F - SMPS POWER

SMPS POWER 
SMPS Front
Fuse
CNM803
CNL801
CNM803
1 Fail Count 2 ANA_DIM 3 A13V
4 OD_ON/OFF 5 A13V 6 BLU_PWM
7 A13V 8 POWER_On/Off 9 GND
10 GND 11 GND 12 GND
CNL802
1 2+ 2 NC 3 NC 4 2-
5 NC 6 NC 7 NC 8 NC
9 1+ 10 NC 11 NC 12 1-
13 NC 14 NC 15 IF2 16 IF1
Power TV On.1.
PS_ON 9 . 2Vdc (when off) changes to 3.3Vdc (on)
PS_On stays active for approx 20 sec. after TV is placed in Standby. It also remains ON for approx 2 min. -
after initial AC Power Cord is connected, even though standby indicator is lit.
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.
If any wrong voltage, remove the SMPS connector to Main Board.4.
A13V again for 12.7VDC. 9
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.
BLU_PWM 9 0V- Off to approx 1 - 3.3 V pending Backlight dim level.
If missing/error replace 9 Main Board.
4-4
4. Troubleshooting