[Premium-Rx] Finding Bad Caps was: WJ8615d PSU schematic

Brooke Clarke brooke at pacific.net
Sat Nov 29 20:46:34 EST 2014


Hi Lee & List:

I've had some luck repairing equipment without any documentation if the problem is one or more bad electrolytic caps 
using a combined ESR Capacitance meter.
Shameless plug:  I import and sell it, see:
http://www.ebay.com/itm/ESR-Micro-4-0s-Combined-Capacitance-Low-Ohms-Meter-/331178213881

What Goes Wrong (oxidized connections):
http://www.prc68.com/I/HaT.shtml#Wgw
Cap Failure:
http://www.prc68.com/I/HaT.shtml#CF


A couple of weeks ago I used it to find a short (the ESR function works as a low Ohm meter 0.01 to 99.99 Ohms), see Fig 
15 to 27:
http://www.prc68.com/I/AM-7176A.html#Photos

Mail_Attachment --
Have Fun,

Brooke Clarke, N6GCE
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
http://www.prc68.com/I/DietNutrition.html
L Ritta wrote:
> Hello All
>
> I have a 8615d with dud power supply that I am repairing but lack a circuit,
> this is the original power supply.
> Does anyone have a circuit? Please respond direct.
>
>
> 73's Lee.
>
>
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