[Premium-Rx] wj-8615

[Oliver Barnes]

Hi Lee,

I recently dismantled the power supply in my 8615 only to find that  
the problem was a tantalum capacitor on one of the other PCBs was dead  
short and dragging the rail down.
 From what I remember of the power supply, the low voltage side uses  
standard 78 and 79 series linear regulators. I didn't delve into the  
high voltage side, but be warned, the reservoir capacitors hold a  
charge long after power off.
Also, the power supply is a pain to remove so before you do anything  
else remove the multi-way output connector from the PSU and measure  
the resistance to ground for each rail on the backplane to search for  
bad tantalums.

Regards,
Oliver

On 12 Jan 2011, at 14:52, Master Lee wrote:

> Hello All
> Anyone here ever repaired the switchmode power supply in the WJ-8615
> receiver?
>
> Lee
>
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