I am looking for the value of R16 on the PG RX600.5. It was the resistor near one set of the rectifiers. It is no longer in circuit (long story).
It would be great if someone had a schematic, but based on my research, PG diagrams are not readily available.
It would be great if someone had a schematic, but based on my research, PG diagrams are not readily available.
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This is unfamiliar territory for me as I primarily deal with home audio gear but here goes. There is a pair of rectifier chips (MUR1620. . .) a little closer to the input side of the amp compared to the power side. The center pin of the rectifier chip marked with the + sign connects to one leg of R16. The other leg connects to a pair of 2200 uf 16 volt capacitors.
Based on this, I assume this is part of the SMPS circuitry, but I could be off base.
Based on this, I assume this is part of the SMPS circuitry, but I could be off base.
I wouldn't replace it without knowing how it's being used.
If it's across the positive rail caps, there should be another, same value resistor, across the negative rail. That would give the value of R16.
If it's across the positive rail caps, there should be another, same value resistor, across the negative rail. That would give the value of R16.
Likely, very difficult. I get diagrams that I can't share and I got one for this model number but it's not the same amp. There is no R16 and the diodes have different designations.
Do these PG amps tend to have two separate power supply sections? Perhaps one for the subwoofer output. . .
That's common in many amps because the subwoofer amp will have higher rail voltage than the full-range channels.