Westinghouse LD2240

[mike123333]

Hello - I recently acquired a Westinghouse LD2240 that does not power up completely. The TV LED will go bright blue then after a few seconds go red in standby mode. Nothing happens to the screen, it stays dark. After some troubleshooting, when I disconnect the screen cable from the main board, the LED stays blue and the back light comes on. As I continued my troubleshooting I found this chip that seemed to have shorted. I can not find what this chip is when I do a google. The chip ID is A1C2565.. See the photo. The location is U9 on the main board.I have also read that the EEprom goes bad as well in this set. The EEprom location is U16. Any help would be greatly appreciated.

[tom66]

Re: Westinghouse LD2240

Looks like AIC2565.
http://www.analog.com.tw/p2_6_detail...idTableName=05

Try removing it, and check all pins for a short to ground (on the board, with the chip removed.)

Since it failed around the SW node (pin 2,3,4 area), it is probably just a failed IC.

[mike123333]

Re: Westinghouse LD2240

Looks like AIC2565.
http://www.analog.com.tw/p2_6_detail...idTableName=05

Try removing it, and check all pins for a short to ground (on the board, with the chip removed.)

Since it failed around the SW node (pin 2,3,4 area), it is probably just a failed IC.

Thanks Tom for the response. I will remove it and check for shortage. Where can I purchase the IC from?

[mike123333]

Re: Westinghouse LD2240

Never mind I have located it on ebay.

[mike123333]

Re: Westinghouse LD2240

Looks like AIC2565.
http://www.analog.com.tw/p2_6_detail...idTableName=05

Try removing it, and check all pins for a short to ground (on the board, with the chip removed.)

Since it failed around the SW node (pin 2,3,4 area), it is probably just a failed IC.

I did remove the IC chip..it was a bare to get out, I cleaned the pads and checked for shorts did not find any to ground. It seems when i was removing the teh IC chip I managed to damage the capacitor that goes between pin 1 and pin3.. How can I repair this, do I bridge it with solder? or try to get the capacitor replaced. Thanks

[mike123333]

Re: Westinghouse LD2240

Hello .. I finally received my components along with the correct capacitor. Now the TV stays on with the black-light when everything is hooked but but there is not video. The inputs do not change at all whether be via the remote or TV buttons. Any ideas what maybe the cause here? I don't want to dump allot of money on this set. The audio does not work as well.

[mike123333]

Re: Westinghouse LD2240

I have also read that the EEPROM gets corrupted and gives issues with powering up etc... would a corrupted EEPROM pose a problem I outlined?

[mike123333]

Re: Westinghouse LD2240

is there anywhere I can download the firmware for the EEPROM and flash it via the USB port?

[mike123333]

Re: Westinghouse LD2240

Managed to get another main board for the unit and still same issues no video and audio. Is there a possibility that both main boards are bad? All the voltages check fine. would this possibly point toward a bad EEPROM? thanks