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Spectra RF Bd repair HRN6003D

Posted: Fri Nov 09, 2007 5:47 pm
by jstigler
I have several Spectra 450 & 800 RF boards HRN6003 or HRN6010 with a chip resistor R633 82K that has been hot. Some burned the board and the trace. This seems to be a common problem. I really don't see anything on the schematic that would cause this type of current. Perhapes it is a trace onthe multilayer shorted. Any thoughts on repair.
Johnny S.

Re: Spectra RF Bd repair HRN6003D

Posted: Fri Nov 09, 2007 11:21 pm
by Will
That is NOT burn you see there, and yes it IS a common problem.
The capacitor leakage has eaten the resistor and the circuit board away.

I repair them here...

Re: Spectra RF Bd repair HRN6003D

Posted: Thu Nov 15, 2007 1:07 pm
by Will
Johnny,

I sent you a email and a PM.

Glad to help,

Will