Samsung QA65Q90RAK Service Manual page 72

• 82 inches : LD/SMPS A
Main Connector (POWER)
1 B-GND 2
7 N.C 8
13 VAMP 14
19 PS_ON 20 POWER_LOW
25 5.5V 26
1 GND 2
7 SDA_LED 8
SERIAL_
13 14
DATA
1 5V 2
7 PS_ON 8
13 VAMP 14
19 N.C 20
25 B-GND 26
CNM803B
CNM803A
CNM803A (MAIN Connector)
B-GND 3 N.C
N.C 9 GND
B13V 15 VAMP
21 N.C
N.C
CN9003A (LD/SMPS A Connector)
SEAMLESS 3
GND 9 TEST_LD
GND 15
CNM803B (LD/SMPS A Connector)
N.C 3
POWER_LOW 9
B13V 15
N.C 21
B-GND
CN9003A
4 N.C
10 GND
16 B13V
22 N.C
GND 4 SCL_LED
10 VSYNC_IN
GND 16 CONTACT
GND 4 Fault
N.C 10 GND
VAMP 16 B13V
B350V 22 B350V
4. Troubleshooting
5 B350V 6
11 VAMP 12
17 A13V 18
23 GND 24
5 BLU_ON/OFF 6
11 SERIAL_STT 12 SERIAL_UHR
5 N.C 6
11 VAMP 12
17 GND 18
23 N.C 24
B350V
B13V
GND
Fault
TEST_SD
N.C
B13V
GND
N.C
4-3