[URL=filedata/fetch?filedataid=344773][ATTACH=JSON]{"data-align":"none","data-size":"thumb","data-attachmentid":3316263}[/ATTACH][/URL]
Update:
So, as far as I understand that it is using [B]FBP[/B] to control a current on output (to power LEDs), that current is set to max LED brightness.
To control of backlight intensity it is using external [B]PWM Dimming,[/B] which should oscillating. In my case there is a constant value of [B]PWMI[/B] which is [B]0.49V[/B] and it means, there is no oscillation !!! And as [B]PWMO[/B] just copy...

Hello,
I would be really grateful for your suggestion how to repair a [B]no backlight power[/B] on TV LG39LN575S. There is a visible menu on a screen when I use external torch (so logic board and panel works correctly), there is just no backlight.

I have connected a logic board which is turning on power board and [B]disconnected LED backlight cable[/B].

Power board:
REV2.0 2013.03.28
[B]PCB: EAX64905301(2.2)[/B]
LGIT PCB P/N: 3PCR00184A

IC LED driver MAP3202

MAP3202 voltages:
(1) EN = 2.75V
(2) VCC = 12.05V...

Hello,
I'm just a regular guy who likes to repair things. Because I cannot stand when people are getting rid of things which can be repaired or used for some different purpose.
I consider that as a fight against a broken device and me, and I expect to win every fight.
I spend so much time on repairing things, so it is definitely cheaper to buy new thing instead of repairing something....