Samsung UN NU710DF Series - LED Indicator Test

4-10. LED Indicator Test
4-10-1. Diagnostic Methods - Flashing Symptom Codes
After TV is "COLD BOOTED" (AC Power Re-Cycled), Flashing symptom codes will operate and show the defect block with
numberofLEDash.
PlaceamirrororphonedirectlyunderStandbyLEDtoobserveashing.
Defect type and Number of LED ash 
Defect
Block
Detection Method Number of LED Flash
OCB - LEDo
No Blinking
4 se
1 set 4 sec
4 sec
4 sec(10min)
4 sec(30sec)
Cold Boot
20~30sec
x 5 time
x 5 time
x 5 time
x 5 time
x 5 time
4 se
4 se
4 se
4 se
Blinks 1 time when cold boot
Main Board
WDC -> Reboot -> Flash•
Error -> Flash•
1 time
Panel
Error -> Reboot -> Flash•
Error -> Flash(after 10cm)•
2 time
SMPS
Error ->Reboot -> Flash•
Error -> Flash•
3 time
Bluetooth /
WIFI
Cold Boot -> 30 sec after •
module starts
4 time
AOC
Cold Boot -> 30 sec after •
module starts
Signal level below •
threshold
5 time
How to COLD BOOT the TV
Method 1) Unplug and re-plug in the power cord.•
Method2)WhileTVison,Press&HoldPowerButtonofTVremotefor4seconds.TVwillturnoandonbyitself.•
4-51
4. Troubleshooting