LED Backlight can be activated for testing by simply removing CN201 before applying power to the TV.
REMOVE THE SCREW COVERS AND THEN THE SCREWS
In this article, we will examine the D7000 start up sequence, the operation of the SMPS Power Supply and the Panel LED Backlights with its unique processing sequence, and discuss important troubleshooting steps. The Power On Sequence: To test the Power On sequence, follow these steps: Locate the Power Connectors on the SMPS Power Supply….
Samsung TVs have a built-in test picture and built-in test patterns to help service technicians troubleshoot video issues and pinpoint problems. There is also a T-Con jig available to help you test TV Power and T-CON TEST PATTERNS without the Main Board. Using the Picture Test in the TV menu Disconnect all video connections to…
The F8000 Series LED TVs let you verify that all LED arrays are operating properly by running a built in test pattern called Local Dimming Test. • This test will light up the 16 LED arrays individually, starting on the right bottom corner as shown in the graphic below. • You can access the test…
The UN55F8000 powers-up in the following sequence: • 5.3VDC on the A5V pin when the AC cord is connected. • The MicroPROCESSOR on the Main PCB actively looks for the user to press Power. • When Power is pressed, the MicroProcessor sends a “High” voltage (0- 3.5VDC transition) to the SMPS via the PWR_ON/OFF pin,…
