Vintage Synth Repair

Before you go to all that trouble, try this. Open her up, loosen all  
screws that fasten the circuit
board to the chassis(i.e., ground screws) and then tighten them back  
up.  Sounds like you have
cpu clock signal floating around on the analog ground. Or it is  
perhaps the switching power
supply current for the bacliught of the LCD, in which case you see  
the backlight flickering
or see no backlight at all.
On Oct 9, 2005, at 2:47 PM, bitjiggle wrote:

> Hi all,
>
> I finally received the TX816 I've been lusting after half of my life.
> I turn it on and after a half hour I hear a very high pitched sound
> coming from the left side where I assume the power supply is. Is this
> the sound of a dying capacitor or regulator? Should I open her up and
> change whatever I can before it blows?
>
>
> Thanks
>
>
>
>
>
>
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