Westinghouse LD2240

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  • mike123333
    Senior Member
    • Oct 2011
    • 196
    • USA
    #1

    Westinghouse LD2240

    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.
    Attached Files
    Last edited by mike123333; 11-17-2014, 09:38 PM.
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      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.
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • mike123333
          Senior Member
          • Oct 2011
          • 196
          • USA
          #3
          Re: Westinghouse LD2240

          Originally posted by tom66
          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?

            Comment

            • mike123333
              Senior Member
              • Oct 2011
              • 196
              • USA
              #4
              Re: Westinghouse LD2240

              Never mind I have located it on ebay.

                Comment

                • mike123333
                  Senior Member
                  • Oct 2011
                  • 196
                  • USA
                  #5
                  Re: Westinghouse LD2240

                  Originally posted by tom66
                  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
                  Attached Files

                    Comment

                    • mike123333
                      Senior Member
                      • Oct 2011
                      • 196
                      • USA
                      #6
                      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.

                        Comment

                        • mike123333
                          Senior Member
                          • Oct 2011
                          • 196
                          • USA
                          #7
                          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?

                            Comment

                            • mike123333
                              Senior Member
                              • Oct 2011
                              • 196
                              • USA
                              #8
                              Re: Westinghouse LD2240

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

                                Comment

                                • mike123333
                                  Senior Member
                                  • Oct 2011
                                  • 196
                                  • USA
                                  #9
                                  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

                                    Comment

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