bigtom <bigtom@xxxxxxxxxxx> wrote: > ORITRON DVD1030 player
> theres 3 diodes on the secondary side of the chopper that have shorted.
> one SR160 reads 3ohms and the two SR360 diodes are 117ohm and 153ohms
> on the diode test.
> esr on the caps is good. all other diodes, resistors etc seem ok.
Only the SR160 seems shorted (you don't mention you tested the SR360
diodes both ways). Make sure to check ESR on the secundary caps as well,
if you didn't do that yet.
Re: High voltage capacitors in audio ... have the 1000uF caps next to the output stage. ... The rectifier diodes might just as well be there, too, then. ... transformer to storage capacitor, but not to the right of that. ... Keep those 100 nF pairs for each regulator right up ... (sci.electronics.design)
Re: DELTA - New PS-fixed ground or iso switch? ... > caps, diodes, and resistors around each device. ... The CPS 150 and larger ones have a tracking circuit.... > floating the commons and making a common from the plus rail of one supply ... (rec.audio.pro)
Re: High voltage capacitors in audio ... have the 1000uF caps next to the output stage. ... The rectifier diodes might just as well be there, too, then. ... I would want the regulator to have its ground reference connection be connected to ground at the point where the two channels of headphone grounds first connect together, not at some distant end of their common path back to the transformer center tap. ... I like what you show from transformer to storage capacitor, but not to the right of that. ... (sci.electronics.design)
Re: Mains conditioners and power cables ... > Tis true, but the transformer impedance will be the same as before, so ... If this is happening with the original caps,... current of the recharging episodes is almost unchanged. ... and hence protects the diodes (and the caps to a lesser ... (uk.rec.audio)
Re: CTC187 dead ... Make sure the diode that supplies the HOTr is good or bad, ... the fuse to go. ... > exploaded caps like on most of the ones I worked on. ... > The fuse is gone, the HOT is shorted, and 1 of the 2 secondary diodes is ... (sci.electronics.repair)
