Samsung QN49Q6FNAF Service Manual page 55

• 75 inches
1 GND 2
7 A13V 8
13 A13V 14 BLU_ON/OFF
19 GND 20
1 1+ 2
7 6- 8
1. TV in Standby
Standby LED Indicator
9
2. If Not Lit:
AC 120Vac Line
9
3. If missing:
120Vac Source/Power Cord
9
4. If OK:
Resistance on OC SMPS
9
5. If fuss are open : replace
6. If fus are OK:
Standby : A13V (Always On) to Main Board.
9
7. If any missing remove the SMPS connector to the Main Board.
Standby A13V again.
9
• If OK replace the
• If still missing replace
Main Connector (POWER)
LED Connector
CNM801 (MAIN Connector)
GND 3
OVD LEVEL 9 FAIL DETECT
15
GND
CNL801 (LED Connector)
1- 3
6+ 9
FUSE after first removing AC power cord.
SMPS
Main Board.
SMPS.
CNM801
CNL801
FUSE
GND 4 1-wire PWM
10 ANA-DIM
A13V 16 Power ON/OFF 17
2+ 4
5- 10 5+
5 A13V
11 A13V
A13V
2- 5 3+
11 4-
4. Troubleshooting
6 GND
12 OD ON/OFF
18 GND
6 3-
12 4+
4-3