Fujicom 37 lcd

[willyam1]

Hi.
pic is very bright can sea colors.
usely problem in tcon board.
I change same tcon board used one (not new) but no sure if its working ok and its the same problem.
TCON T370HW02 37T04-COG.
Most of the time im replacing the as15-hf ic and the problem is solved.
befor I change the HS15-HF here some result.
vgh=26.30v.
vgl=-6.6v.
12v 3.3 1.2v in reg.
HAVDD=7.8V.
AVDD=15.9V AND THE VOLLTAGE IN THE CAPI SMD C502 C503 C504.......C509 IS IN GOOD ORDER NOTHING IN THE BOARD IS HOT.
notice that the pic is little bit flicks (not the backlight) but without input signsl ther is no flicks also the 2.6v in the output adj reg is little rippel and the 5v and12v little rippling in the main board .
heat with hotgun the capi in the power supply and in the main board no luck the same any solution?the screen is T370HOW03 THANKS WILLYAM

[tom66]

Re: Fujicom 37 lcd

Pic of T-Con? Check GAMMA voltages?

[willyam1]

Re: Fujicom 37 lcd

hi tome66 all the reading point of the gamma are in good order
.
I change the AS15HF SAME PROBLEM.
WHAT NEXT?

[tom66]

Re: Fujicom 37 lcd

How did the gamma voltages test? What voltages did you get?

[willyam1]

Re: Fujicom 37 lcd

Vg1=15.3 vg2=15 vg4=12.53 vg6=10.92 vg8=10.05 vg10 =8.87 vg11=8.63
vg12=7.65 vg15-5.6 vg17=4.68 vg19=3.15 vg21=0.538 vg22=0.3.
I didnt find vg3 vg5 vg7 vg9 vg14 vg16 vg18.
Willyam

[tom66]

Re: Fujicom 37 lcd

OK, that looks OK. Check user menu, what are settings for brightness & contrast set at?

[willyam1]

Re: Fujicom 37 lcd

50%in scale from 0 to 100.
NOTICE THAR RESISTANCE IN THE 1.2V PIONT IS LOW 52OHMS AND ITS THE VOLLTAGE FOR THE MAIN IC IN MAIN BOARD
IT SEEME THAT THE PANNEL OR MAIN IC IN MAIN BOARD NOT OK MAIN BOARD TM30G V1.O 2009.11.18.
WILLYAM