Re: Harman Kardon AVR 3700 blown standby power supply

Thanks for the suggestions. Are you talking about IC91 & IC92?

I would assume if the standby TF91 was bad, standby power wouldn't work? If I unplug CN20 it stays powered with both zones on so I have a feeling it's something on the amplifier board for the main zone. I had the power board out to inspect it closely and it looked fine visually. When I put it all back together (forgot to plug in CN20) it appeared to be working. (magically fixed!) I wired it all back up to test and had no speaker output. Plugged...

Re: Harman Kardon AVR 3700 blown standby power supply

After closer inspection it's just glue around all of the caps.

Re: Harman Kardon AVR 3700 blown standby power supply

Digging up a thread from the dead with my first post.

Had my PS board (PN: COP12475E) take a dump today. Looks like it has been slowly dying while all the caps oozed out. Zone 2 amp can power on no problem, but the main amp will shut off after 5 seconds or so.

I'm in Canada but could order from the US if necessary. Does anyone know where to buy HK parts?

I have an email out to the CDN rep which just appears to be a distributor (Erikson Consumer).

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