Re: LG 55LA6200 Backlight Issue?

Ok, thanks for the information as the situation has changed at the led power connector P801, I had grounding issues which resulted in incorrect readings. There seems to be something going on with the first LED- at P801 as the voltage spikes then drops but I listed both the asked for voltages at P201 and updated voltage details at P801 below:

VDC at P201:
3.4 - PWR-ON = PS-ON
3.4 - DRV-ON = BL-ON
3.5 - PDIM1 = PWM Dimming 1
3.5 - PDIM2 = PWM Dimming 2

VDC at P801 (Power On):
LED- *:...

Re: LG 55LA6200 Backlight Issue?

I am also going to check the LED power connectors again because the 9V made no sense to me too.

Re: LG 55LA6200 Backlight Issue?

Ok, I will do this tomorrow morning. The guy in the post I referred to about the photo disappeared after a reply said he had bad/cold solder joints on the LED strip to strip connectors so I think I'm also going to check that out too... Thanks for the help!

Re: LG 55LA6200 Backlight Issue?

Here is a photo of the inside, it is from another thread on the forum but its identical to the board set / wiring. The post its from (LG-55LA6205 backlight issues) is just the European model and have already searched and the boards themselves are interchangeable....

Re: LG 55LA6200 Backlight Issue?

EBT62368508 is the main board. The Power supply board is not the one you linked to it does not have the two connectors it has this board:
[url]http://www.shopjimmy.com/lg-eay62810701-power-supply-unit.htm[/url]Re: LG 55LA6200 Backlight Issue?<br ...unit.htm[/url]

I have a LG 55LA6200 when turned on the backlight turns on the LG logo is displayed then immediately turns off, all inputs and sound function appropriately and verified the image is displayed on the screen with a flashlight. When it turns on the LED power output from the PCB reads a voltage which seems to hit 9V for a second (my multimeter may not be able to refresh fast enough to read the max voltage supplied) but when the backlight turns off the voltage drops to zero. When i turn the TV off disconnect LED power connector and plug it back in the voltages remain the same, power is present for...

Re: New Members - please post your introductions here

Have always came here and searched to find answers and decided to signup, love the place and has help me a lot!