alex ezorsky-lie
- Aug 27, 2015
- 27
- Joined
- Aug 27, 2015
- Messages
- 27
And then the treble cuts out, nothing but bass.
Then randomly it comes back for 5 seconds to 5 minutes then this on and off gets more off then on until maybe an hour or so when its just bass forever.
I've searched everywhere for loose connections bad caps etc. I've tried tapping, poking spinning twisting bending every little piece and wire I could find and it seems nothing I do correlates with the treble coming in and out. And yes I've tried multiple sound sources.
The system has a power supply board in the subwoofer as well as a separate sound-control / headphone-input unit wired to it. The control unit has 2 buttons for power/mute as well as a push/turn knob for volume/bass control (no treble control). With headphones plugged in the sound is always fine, which leads me to assume it's something with the power supply?
What part of a fairly simple circuit board (power supply) or relatively simple sound control board would become faulty over fairly reliable period of time like 20-minutes? My guess would be a transistor or any parts with heatsinks but they all look fine. Guess I should learn to properly test those transistors.
Just hoping someone has a useful guess.
Thanks!
Then randomly it comes back for 5 seconds to 5 minutes then this on and off gets more off then on until maybe an hour or so when its just bass forever.
I've searched everywhere for loose connections bad caps etc. I've tried tapping, poking spinning twisting bending every little piece and wire I could find and it seems nothing I do correlates with the treble coming in and out. And yes I've tried multiple sound sources.
The system has a power supply board in the subwoofer as well as a separate sound-control / headphone-input unit wired to it. The control unit has 2 buttons for power/mute as well as a push/turn knob for volume/bass control (no treble control). With headphones plugged in the sound is always fine, which leads me to assume it's something with the power supply?
What part of a fairly simple circuit board (power supply) or relatively simple sound control board would become faulty over fairly reliable period of time like 20-minutes? My guess would be a transistor or any parts with heatsinks but they all look fine. Guess I should learn to properly test those transistors.
Just hoping someone has a useful guess.
Thanks!