Pioneer A-205 faint noise/hiss issue

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • GraphicMan
    Senior Member
    • Aug 2018
    • 124
    • Egypt

    #1

    Pioneer A-205 faint noise/hiss issue

    as the title says, i noticed a faint noise/hiss when there is nothing playing that i dont think i have had with this unit before ever, i have not changed its location
    what makes it more weird, this noise is gone almost completely if my hand gets within 5cm or less close to it (close to the panel)!!
    out of curiosity what does that mean?
    thanks
  • GraphicMan
    Senior Member
    • Aug 2018
    • 124
    • Egypt

    #2
    it turned out that the cause of the noise is from the pc and not the amplifier

    Comment

    Related Topics

    Collapse

    • tony359
      Removing electrical noise introduced by fan
      by tony359
      Hi all,

      I am working on a sound processor, it tends to overheat so I fitted a fan inside. The fan is connected to the +15V of the PSU via a DC-DC converter based on the LM2596 to reduce the voltage to around 10.5V.

      Unfortunately the analogue circuitry is picking up the noise from the fan in two ways:
      1. The fan is close to the analogue section, the motor itself gets into the outputs so I'll have to move it somewhere else
      2. Even with the fan running outside of the case, there is still some noise which is clearly going back to the processor via power line....
      11-28-2023, 05:18 AM
    • MegaZAC
      Onkyo TX-SR805 noise in one channel
      by MegaZAC
      Surprisingly enough, this receiver doesn't have the DSP chip issue. The HDMI board does not get hot, and sound over HDMI works fine.

      Regardless of the input, the right channel has noise that is clearly noticeable even on average volume level. The only cases when there's no noise is when VCR input is selected (some tracks on the board are damaged, maybe that's why), or if HDMI input is selected but nothing plugged into it. In all other cases, even when no input is connected I still have the noise.

      There's some logic behind it. As soon as I select an input I get only left...
      04-23-2025, 10:09 PM
    • courtcircuit
      Philips HTS8000 home cinema noise problem
      by courtcircuit
      Hello

      I have since a long time a Philips HTS8010S/01 which has been old but was doing the job.

      Since a few days, it starts by making a weird "static" nois when switches on for a few seconds to a minute and then works like a charm.
      Noise loudly outputs from the 3 channels, even if no signal is sent by the controler.DVD to the subwoofer/amp unit.

      I was thinking of a soldering that was starting to be damaged and that was only doing the job after a few seconds of heating, most probbaly on the power board
      Removed each of tyhe boards
      ...
      02-08-2025, 08:22 AM
    • zump
      JVC LT-40N530AA dumb TV - faint image and weird buzzing noise
      by zump
      Hello

      Turned on this TV one day and the image is VERY faint. And the TV is making a strange buzzing sound. Eveything else seems to work though!

      VIDEO
      https://www.youtube.com/watch?v=ncXlyb8xS78

      The high pitched buzzing is a bit hard to make out, but it's definitely worse in real life.

      What component is broken on the board and can I replace it?
      07-26-2021, 10:43 PM
    • Bushcat
      Pioneer PL-X9 motor speed control wobble
      by Bushcat
      I'm starting to re-cap a Pioneer PL-X9 turntable, specifically the motor control board, because although everything tests out OK according to the service manual, the speed wavers slightly despite the quartz lock light remaining on. So, I've decided to re-cap that board since it's the cheapest next step...

      Pioneer's passive component naming convention is clear to me. For example, CSZA R22M 35 is tantalum, radial leads, 0.22uF, 20%, 35V.

      BUT there are two capacitors on the board which have actual Pioneer part numbers: PCL-042. I can tell they are 0.1uF, 16V but don't...
      05-24-2023, 03:36 AM
    • Loading...
    • No more items.
    Working...