hi guys n gals......does anyone know whether the capacitor across the pos and neg affects the motor speed.....i.e.     if its failed, would this cause the motor to spin faster.....i have an aiwa 770 that plays pinky and perky ....belts are changed and motor runs too fast.....anyone shed any light on my dilemma......cheerzzzz

Hi davebush I had a similar issue with my TEC which was down to a few dry joints on the tape board. Its worth doing some continuity testing first to see if you can establish that all connectivity is there.

In my particular case the dry joints were on the power connector to the board.

That component is a bypass cap, and passes AC signals to ground, most likely there to prevent or reduce the pop noise or interference from operation of the motor.  If open, it will be like it's not there, and if shorted, your motor probably would not run.  But in answer to your question -- no, it does not affect motor speed.

Doesn't your motor have a built in speed controller that is adjustable via hole in the backside of the motor?

yeah it does norm but i have turned it forward and back with no change to the sound or speed...i tell you what is happening though....the motor will only run when i have a metal object like a thin screwdriver inserted into the hole and touching the motor casing as well......if i dont have this inserted in the hole, the motor wont run

Ok.  It sounds like the speed controller inside the motor is broke.  If you are careful, you might be able to open up the motor and repair the speed controller.  OR there is also a slight possibility that the speed controller is a "fixed" type and inserting the screwdriver inside broke a component such as resistor (another member did this on a VZ).  Inserting the screwdriver might re-bridge the circuit path.  I only say this because it doesn't seem normal for one to try adjusting the speed on a motor that did not work in the first place?  So is it fair to say that it stopped working after the screw driver was inserted?

Is there a vr resistor on the main circuit board? this could also be broke and need replacing..cauzing the motor to run at full speed...happens alot on the super jumbo's just an idea...

ok guys...thanks for the feedback....ill give it a go and get back to you.....thanks again

quick update.............sorted motor speed out now...............it was the transistor located in the motor housing................blown...............got a new one ....soldered it in......works a treat now.........thanks to all concerned

That sounds like a major score Dave.  Congrats.

thanks norm.........