Supratek Owners Thread

@reimarc ,  I would guess 1 of 4 things.

1. the remote does not work

2. the 'photocell' cable is not connected to the VC board

3. the VC motor is not getting power

4. The Vol. knob shifted in transit and is rubbing/binding against the side of the wood chassis.

These are all pretty easy to check,..  with the pre 'on', place your ear up close to the unit and use the remote,  can you hear the motor trying to turn,..  very easy to hear,  if you do the knob is bound, an allen key, wrench and some patience can fix this pretty easily.  If you hear no motor noise when using the remote, then you'll need to open the unit and dbl check the photo cell ribbon cable and that it is connected.  if it is,  then dbl check the 2 wires that run to the VC board.  They most likely connect to a molex screwdown type of header/connector..  The VC is generally powered from a branch off of the idht heater circuit, taken from before the regulator IC..  you can somewhat safely check it is getting power by REMOVING the Rectifier (center tube in PS),  powering up and testing the VC board for voltage ~9vdc at those screw terminals..   Hope this helps!  DM me if you have any further questions.  Happy to help

@jslateiv Do you know what could be causing audible noise coming through the left speaker when adjusting volume?  The noise stops as soon as I stop turning the volume knob —which I usually adjust via remote.  Thanks!

@nymarty  first guess would be a pot getting dirty/bad rub on the wiper for whatever reason.  For these pots, only solution is replacement as they are sealed. 

@jslateiv Thanks.  I only get the noise when using the remote, which is odd.

@nymarty   gotcha,..  then in that case, if there is no noise when turning the vol. knob manually,..  I think what you are hearing is the motor/circuit noise creeping into the audio circuit when the motor is engaged,..