DV Mark DV40 112 40W 1x12 Tube Guitar Combo Amp
DV Mark DV40 112 40W Combo Reverb Volume Issue
Received this amp in trade. Issue is that the reverb is acting like a volume control.
If reverb knob is at zero there is no volume. Turn the knob slightly above 1 and reverb is now FULL ON deep and crazy, and amp has output.
I cleaned every pot and tube socket. All tubes test good. Reverb pot is functioning as it should, appears to be a 20k pot, and measures correct going up and down the pot.
Schematic and suggestions needed.
If I take the reverb tank out of the loop, there is barely any volume from the amp and the sound is distorted.
I have attached a block diagram from the owners manual.
Thank you, MC
DV Mark DV40 112 40W Combo Reverb Volume Issue
Received this amp in trade. Issue is that the reverb is acting like a volume control.
If reverb knob is at zero there is no volume. Turn the knob slightly above 1 and reverb is now FULL ON deep and crazy, and amp has output.
I cleaned every pot and tube socket. All tubes test good. Reverb pot is functioning as it should, appears to be a 20k pot, and measures correct going up and down the pot.
Schematic and suggestions needed.
If I take the reverb tank out of the loop, there is barely any volume from the amp and the sound is distorted.
I have attached a block diagram from the owners manual.
Thank you, MC
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