Sharp LC-37SB24U 32 - Powers Off if Control Buttons Are Pressed on TV

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  • DRIFT-O-MATIC
    Sharp LC-40LE431U Manual control buttons not working properly
    by DRIFT-O-MATIC
    I have a Sharp LC-40LE431U TV. The symptoms are when plugged in, the control buttons on the right side panel don't seem to want to work correctly. I get a solid red light. But when I press the Power button, it does not power on immediately. I have to keep pressing ALL the side buttons randomly until finally the solid green light is on. Then when pressing each additional button, they do not always respond correctly, if at all. Pressing the Volume button might bring up the Menu, or vise versa. Even if I can get the Menu screen to come up and scroll through the selections, I still cannot select any...
    02-14-2022, 04:24 AM
  • bohaboha
    Use different IR SENSOR /TV CONTROL BUTTONS BOARD Possible
    by bohaboha
    Hi everyone is it possible to change or use a different IR SENSOR / CONTROL BUTTONS BOARD on a tv?
    exp: from a Philips to a Samsung or any
    if it breaks or if there is some odd brand or if universal remote control would not work
    05-05-2023, 07:24 AM
  • Yanleb
    LG 60PK550 Logic Control Board EBR63450301
    by Yanleb
    Hi all, I just want to share the repair of my 60PK550-UA TV set.

    The TV set was powering on, just no image. After verification, nothing wrong on the YSus or ZSus boards. Nothing wrong on the main board either.

    But I noticed that the LED was not flashing on the Logic Control Board. This is an EBR63450301. The LED is supposed to flash even with all the flat cables disconnected, with only the power cable attached.

    All the voltages measured at the electrolytic capacitors on the board were good. From top left to bottom right:
    C57: 3.30V
    C61:...
    07-20-2023, 12:38 AM
  • YellowJacket
    SHARP LC-32CHF5111K - stuck at color test mode
    by YellowJacket
    Hi friends,

    TV has stuck at - as I googled the term - color test mode. Slowly flashing colors white, red, green, blue, black, over and over again. I tried some hints from internet, like pressing some remote buttons, but nothing worked. I also tried factory reset for Sharp TVs => "while holding vol– & input buttons on tv plug in set when “k” appears push vol– & chan- " , but TV doesn't even start during buttons pressed.
    So I decided to flash new firmware to SPI ROM. What do you say, would it help? If so, where can I find some dump? I was unable to find...
    02-04-2023, 03:11 AM
  • harp
    triac phase control 0-100%
    by harp
    Trying to understand which properties of circuit affect triac phase range, is it possible to control near whole period, or it have some limitations - on net found a couple circuit, that claims almost full control, but in the past I build some simple circuit and remember that it do only half of control over triac?...
    06-02-2024, 09:00 AM
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