I opened up my 4330r integrated amp today, to possibly add a DIY MM phono stage in there.
The pins meant for the add-on phono card state: +25v.
...but my meter is saying those pins are +34.5v
The DC side of the power rectifiers also reads +34.5v
(the main filter caps inside are rated for 35v
)
Is this the normal voltage ?....and the phono card should have it's own regulation ?
I don't have a schematic.
=RR=
The pins meant for the add-on phono card state: +25v.
...but my meter is saying those pins are +34.5v
The DC side of the power rectifiers also reads +34.5v
(the main filter caps inside are rated for 35v

Is this the normal voltage ?....and the phono card should have it's own regulation ?
I don't have a schematic.
=RR=