Re: 42LG20-UM LCD TV washed out picture

Is there a good site to buy a T-Con Board?

Re: 42LG20-UM LCD TV washed out picture

Thanks Mmartell

Just got back to this, hear are the voltages they seemed to go up a little as the TV warmed up:

VGMA1 14.40
VGMA2 14.35
VGMA3 14.37
VGMA4 14.05
VGMA5 13.83
VGMA6 13.77
VGMA7 13.75
VGMA8 13.72
VGMA9 13.58
VGMA10 13.34
VGMA11 13.14
VGMA12 6.36
VGMA13 6.23
VGMA14 6.05
VGMA15 4.51
VGMA16 4.25
VGMA17 3.71
VGMA18 2.90
VGMA19 2.23
VGMA20 .52
VGMA21 .42
VGMA22...

Re: 42LG20-UM LCD TV washed out picture

No, I waited five minutes the screen washed out in about two the AS15 just felt slightly warm,
Thanks
Chris

Re: 42LG20-UM LCD TV washed out picture

T-Con picture attached...

Re: 42LG20-UM LCD TV washed out picture

Thank you budm and CapLeaker for your quick response. Yes it is an AS15, I had to put on two pairs of glasses to read it. how can I take the DCV readings of the Gamma Voltages at the test points on the board? What should they read and does this mean the T-Con is bad?

Hi everyone I have a 42LG20-UM LCD TV and I need help Diagnosing picture problem. When the TV is first turned on everything works fine but after a few minutes the pictures slowly losses its contrast and becomes washed out. Also the power light flashes green 6 times at startup. I have started testing the power supply and everything seems fine.i have attached pictures of the components and believe the problem is either the power supply, main board or the T-Con what do you think?
Thanks
Chris...

Re: New Members - please post your introductions here

Hi, I'm a new member and would like introduction myself. My user name Chris1sr goes way back to AOL IM, my kids gave me this screen name so i could im them about 25 years ago. My name is Chris Sr. and my first computers were ibm 286's that i trash picked for my 8 kids while i worked as a carpenter. I networked them on 10base2 thin Ethernet and I think I used sygate to share a dial up connection. A lot has changed since then, i really enjoy new technology. I'm interested in everything and enjoy the challenge of repairer just about...