MAIN BOARD HELP LG 37LC2D-UD LCD TV

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Callmecannonball
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MAIN BOARD HELP LG 37LC2D-UD LCD TV

Hi,    I have and LG 37" lcd about 2.5 yrs old.   4 Days ago it started flashing the connecting message ans then the whole screen started flashing from black to white and then it just went to a black screen, not off but black.   During this time I have no sound, no menu, no response at all accept that the led flashes when a remote button is pushed and I am to shut it off with the remote. It stays this way for at least 30 minutes.   When I turn it back the led flashes 14 times then comes on steady and sometimes the tv works for about 5 minutes or so.   I have disconnected the verizon dvr and tested with just the dvd with the same results.     Any help on this issue would be appreciated.                    

I was told that it was probably the main board. I feel comfortable replacing that but  I don't know if the board would wavt to be flashed with firmware after install. Does anybody know?

Thanks for any help in advance !

 

Callmecannonball
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I also verified power supply

I also verified power supply with meter.

Alnp
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what version firmware do you

what version firmware do you have now?
could you have wrong version or incomplete firmware flash?
there is a phone number at the bottom of this page for firmware support

http://us.lgservice.com/vchip_html/V-chip_upgrade_for_your_set.html

Callmecannonball
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Alnp, Thanks for the info.

Alnp, Thanks for the info.
I don't know what version I have as the tv has failed. I believe the problem is the main board and plan on replacing it. But it is just based on a swag. At 300+ bucks I was hoping somebody had a better idea. Although I have pc and electronics experience, I have not replaced a tv main board and don't know if firmware is already installed. Unfortunatly my tv is listed in the last step of the firmware update and I will have to call LG if the upgrade is needed.

Alnp
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A replacement mainboard will

A replacement mainboard will have some version of firmware installed.
Several models of 32 and 37 LG and Zenith use the LA51D chassis.
It might be cheaper buying a whole tv with shattered screen, for parts.

You have verified the power supply.
A bad inverter board or lamps should have black screen with sound.

Unplug and reseat all wiring harness connectors.
Try changing resolution down to 480i or 480p.
Try using a different input.
If the set runs at low resolution check the power supply capacitors further.

Callmecannonball
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Do you have a line a

Do you have a line a shattered LG 37LC2D-UD or campatable?

Alnp
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Sorry, I do not know of any

Sorry, I do not know of any for sale. If you search by the mainboard part number you might turn one up, or find reference to other sets that used the same board.

angie1
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Hi,

Hi,

I am having an issue with my LG 37 as well, same age. My remote will not work the unit, or the cable remote. I also don't get the led flicker when pressing a remote button. I replaced the IR sensor on the tv, same problem.

Something odd, when I press the channel up button on the side of the tv, it turns the unit on. Very odd.

Any ideas?

Thanks in advance,
Jeff

cjc
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Jeff

Jeff

How did you replace the IR Sensor? I think my ir sensor has gone bad. Similar issue. Have you put fresh batteries in the remote? Again, how did you replace the IR sensor?

Mike

jefner
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I have a 2006 Lg 37LC2D-UD

I have a 2006 Lg 37LC2D-UD and the past two days the tv works when it wants to, the picture on the tv will show clear and fine for about 15 minutes or so and then the screen goes to a gray screen, no sound or picture. I cant get the tv menu to pull up and from the research I have done it points to the capacitors. Can anyone help point me in the right direction please and thank you.

CHESTERALI
CHESTERALI's picture
I SERIOUSLY NEED AN IC WITH

I SERIOUSLY NEED AN IC WITH THE NUMBER, STR 1563 W FOR MY LG TELEVISION

HOW AND WHERE WILL I GET ONE.

IM IN GHANA

GarrettSmith
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I had the same problem as the

I had the same problem as the first post, and ordered, received and have replaced the main board. However, the TV is wonky in a different way. Initially, I could get a menu and static and audio from the CD player. Once installed on the shelf I cannot, the TV turns own, shows channel 4 and static with sound but then flashes off, and on, and off and on over and over like it is cycling though channels. I cannot get a menu. Do I have a firmware problem, and if so, how to troubleshoot?

 

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