Re: Samsung Synchmaster 2693HM WHITE SCREEN [Part 2]

hello momaka,

i find whole tcon on aliexpress for 42USD shipped, its this white screen only tcon related problem? May i order it? Zhx for info ... Daniel

Re: Samsung Synchmaster 2693HM WHITE SCREEN [Part 2]

I try to finf these amps here in czech republic, but no luck, with this dimensions, no chnace ... what is the the dimension? Thx for info ...Daniel

Re: Samsung Synchmaster 2693HM WHITE SCREEN [Part 2]

Hello,

Momaka, you are right, i desolder the IC and its PCB design, IC is not shorted ... I try to replace amps ... Daniel

Re: Samsung Synchmaster 2693HM WHITE SCREEN [Part 2]

Hello momaka,

Thx for reply. Tomorrow i will check it. Yesterday I only check IC around MAX for short ( if ground is shorted with another pin ) and the IC near coil - P3057G seem to be shorted - pin1 (gate) and pin2 (drain) are shorted.
And that is not good, I am right?
See attached photo.
IC is P3057G it seems to be P3057LCG - SOT-89 from NIKO-SEM
Datasheet attached.
But I cant find it on ebay, only on alliexpress and its about 1 month to arrive.
I I want to repair this...

Re: Samsung Synchmaster 2693HM WHITE SCREEN [Part 2]

Hello,

i changed MAX IC and still the same Any Idea? Thx for info ... Daniel

Re: Samsung Synchmaster 2693HM WHITE SCREEN [Part 2]

Hello, newbie here

Pls, need advice from you, more more experienced users...

Same type of LCD, slightly different t-con.
LCD start with white/light gray screen and still in this state ...
Power board seems to be OK, inverter too.
Readings from T-Con are :
VDDA_P - 59,3k/13,02V
VDDA - 5k/13,02V
VDDG - 100,4k/26,8V
VEEG - 41,9k/-7,1V
VCCD - 8,7k/1,79V
VDDO - 1k/3,33V

I check SMD caps around Maxim 8795AE, multimeter tips...