hqdcon for audio?

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • kc8adu
    Super Moderator
    • Nov 2003
    • 8832
    • U.S.A!
    #1

    hqdcon for audio?

    found these in a power supply for a protron tv.
    the psu was the most cheaply built thing i have ever seen.
    anyway these were the problem.
    Attached Files
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • samson7point1@yahoo.com
      Help troubleshooting an audio problem with an RCA SGT-250 CED Player
      by samson7point1@yahoo.com
      The Problem: This player has a toggle switch to select between Stereo, Mono R, and Mono L. Regardless of the setting it outputs the sound to both the L&R audio jacks. In the Mono R position, the audio output level is normal (from both the L and R audio output jacks), in the Stereo position the audio output is about half the volume, and in Mono L, it's about 3/4 the volume. Something about putting it into Stereo mode is causing the volume to drop significantly and I can't figure it out.

      The player processes the audio signal using two different reference frequencies. The "R"...
      PW300S circuit diagram
      2 Photos
      04-30-2024, 11:22 AM
    • ChaosLegionnaire
      what i went through dealing with my mobo with dead onboard sound!
      by ChaosLegionnaire
      so i took out one of my spare gigabyte ep35-ds3r mobos from storage for use to do some cpu, ram and video card testing of stuff i bought from ebay and got for free from momaka. he bought 50 e8400 cpus for cheap from ebay some years ago and i decided to help him relieve him of some of his supply since he had waaaay too many!! what did we say about hoarding too much stuff and depriving others of them?! *cough* socialism *cough* lol!

      i had to blow some dust off the board and heatsinks with the datavac as i didnt clean it up before putting it in storage. after finishing...
      09-13-2022, 09:02 AM
    • i_am_patch
      Roland KR-3500/4500 Digital Piano. Crackling audio sound on all keys -Fixed
      by i_am_patch
      Hi All. I had a Roland KR-3500 Digital Piano (similar to the KR-4500) that exhibited a Crackling audio sound on all keys. After reading somewhere about someone with a similar issue who had replaced all the Electrolytic caps I decided to also go down that route. (Spoiler : It worked !) After some basic troubleshooting I determined that it could be noise feeding thru from the Keyboard scanning since the Demo tunes played back undistorted and the Audio amp / speakers were fine ( Inserted an Audio signal into the rear Audio input). After extracting the main board from the shield, I replaced 7 Capacitors...
      04-30-2024, 08:20 PM
    • Document Archive
      Lenovo ThinkPad P43s Mobile workstation P Specification for Upgrade or Repair
      by Document Archive
      This specification for the Lenovo ThinkPad P43s Mobile workstation can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the P43s boardview and P43s schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo...
      09-06-2024, 01:21 PM
    • Document Archive
      Lenovo ThinkPad P43s Mobile workstation P Specification for Upgrade or Repair
      by Document Archive
      This specification for the Lenovo ThinkPad P43s Mobile workstation can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the P43s boardview and P43s schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo...
      09-06-2024, 01:21 PM
    • Loading...
    • No more items.
    Working...