Hi Guys.
I have a Teac tuner amp (receiver) that only goes into standby.
I checked the power rails and get AC voltages across the board.
I do have schematics which I got from here:
https://www.manualslib.com/manual/1741324/Teac-Ag-980.html#product-AG-980I see 240V AC on the main feed to the standby transformer and then 30V AC from that into the rest of the board.
I'm a Newbie to electronics and expected to see DC voltages across the caps and suchlike. There are a couple of diode bridge rectifiers but I'm only seeing 30V AC on the + and - outputs.
There is a large transformer that I haven't been able to test, other than that its resistance shows it be be OK.
The front display only lights the standby LED and one for each set of speakers, ie SPKR a/b and SPKR c/d LEDS are lit. Nothing on the main display.
I'm puzzled that all of the diodes I've checked show 30V AC on each side of them.
What am I missing, please?