Sharp LC-26SH12U mod to fix low volume problem

Collapse
X
Collapse
+ More Options
Posts
 
  • Time
  • Show
Clear All
new posts

Related Topics

Collapse

  • crackedprint
    Sony HCD-HX80R Amplifier Volume Control Problem
    by crackedprint
    I have a strange fault on a Sony amplifier. The volume control varies the display from MIN, then 1 up to 30 and then MAX as expected. At MIN there is no sound. However, at 1 it is quite loud and increasing above 1 does not change the sound level.

    I have tried a Cold Reset as per the service manual.

    I have looked at the I2C clock and data to volume control chip IC501 (BD3499FV). Data is only sent to IC501 when the volume is set to MIN or 1. At any other setting no data is sent to IC501.

    I have looked all the way through the service manual and tried many online...
    01-21-2025, 12:18 PM
  • theone111
    Problem with LG Plasma 60PM6700 - Random power downs
    by theone111
    I have an LG Plasma TV 60PM6700 for the past ~12 years.

    In the last ~3-4 months I have been having some issues.
    1. Problem: It started with random picture disappearing (sound still worked).
      Frequency: Happened about once a week.
      Solution: Had to turn off TV wait a few seconds before turning it on again.
    2. Problem: Then it got worse and the TV started to shut down and when turning on the no picture just sound.
      Frequency: Happened about once a week.
      Solution: Had to turn off TV wait about 10-20 seconds and turn it on again to solve.
    3. Problem: TV shuts down
    ...
    07-22-2024, 10:36 AM
  • hare011
    CA Azur 650R volume problem at start
    by hare011
    Hi,
    I've got an approx. 13 year old Cambridge Audio Azur 650R AV-receiver. Everything works fine, but when I turn it on, it'll make a very loud sound (f.ex if it is on FM/AM), seems on max. volume for about 1 sec. then It'll turn down to the normal (where the volume control were set).Here is a video of the unit powering up - https://mega.nz/file/ZIAnQKga#esQkO9...qL18-IHmltm0bw
    Any ideas for how to resolve this is much appreciated!
    Best regards,
    Davor
    11-05-2023, 12:46 AM
  • karthur
    Vizio D65x-G4 Volume changes on its own
    by karthur
    On this Vizio D65x, the volume will change on its own. I don't mean like during commercials where the volume will increase. I mean its like the (+) volume button on the remote is pressed and the actual volume dialog is displayed on the screen going up. It will do this, then the volume may start going down. It might go all the way to "0"or it might stop at a different number, then start going back up. The whole time its doing this, the volume dialog is shown on the screen.

    It wont do it until it has been "ON" for 20 or 30 minutes, so it does seem to be heat related....
    06-05-2025, 08:13 AM
  • bscottjohnston
    Sharp LC-80UQ17U Power Supply Board problem
    by bscottjohnston
    I just picked up a Sharp LC-80UQ17U here in Denver on Craig's. The previous owner said he was watching it and "pop" it stopped. Opened it up to find a blown fuse on the high Voltage side of the PS. I bypassed it with a 7.5 Ampere automotive fuse and saw a flash in component NTC7001 (as the fuse popped). I am not going to try to apply any more power to the board until I can locate a schematic. Does anyone have the schematics to RUNTKB217WJQZ?

    ...
    02-17-2024, 06:03 PM
  • Loading...
  • No more items.
Working...