Samsung QN Q65FNF Series, Руководство по обслуживанию

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82 inches •
CNM803
Main Connector (POWER)
CNM803 (MAIN Connector)
1 GND 2 GND 3 GND 4 1-wire PWM 5 A13V 6 GND
7 A13V 8 OVD LEVEL 9 FAIL DETECT 10 ANA-DIM 11 A13V 12 OD ON/OFF
13 A13V 14 BLU_ON/OFF 15 A13V 16 Power ON/OFF 17 A13V 18 GND
19 GND 20 GND
Backlight Power
Power TV On 1.
POWER ON
9
.2Vdc (when off) changes to 3.3Vdc (on)
NOTE
Will stay On for short time when powered off. •
If voltage error or no change: 2.
Jog Function Control Test
9
If OK replace 3. Main Board
All
9
A13V supplies for approx. 12.7VDC
See (SMPS label for approx. STBY and On voltage)
9
If any wrong voltages, remove SMPS connector to Main Board 4.
All
9
A13V again for 12.7VDC
If OK replace 5. Main Board
If still wrong voltage replace 6. SMPS
OVD_LEVEL
9
(Over Voltage Detect) 3.3Vdc : Operating Normal
If 0V or changing, an SMPS or Panel error exists. Perform Backlight Test. 7.
Backlight On/Off :
9
0V : Off to 4.4Vdc : ON
If missing or error - Replace • Main Board .
4-9
4. Troubleshooting