The biggest problem was the 5 watts/ch worth of heatsink for 40w/ch of power amp(downhill in a
hurricane, of course), pretty much guaranteeing amp failure if pushed even a little bit hard.
Then there was the tiny 1amp rectifier bridge for the high-voltage section of the amp's "power
envelope" power supply, with it's switching transistors having 2w sinks on them. The several
dealers I knew at the time said literally 3/4 of them or more were returned DOA within days or
weeks of purchase. It really amazes me that any of them are still working. The only piece of
audio gear more frighteningly bad was the old Carver cube, which was only very slightly less
likely to have flames coming out of it than a gas stove.

--
Stephen Sank, Owner & Ribbon Mic Restorer
Talking Dog Transducer Company
http://stephensank.com
5517 Carmelita Drive N.E.
Albuquerque, New Mexico [87111]
505-332-0336
Auth. Nakamichi & McIntosh servicer
Payments preferred through Paypal.com
"Mark D. Zacharias" wrote in message
...
I think they were OK when they were new - they just haven't aged well. The
browned, heated board areas, and the resulting legion of bad caps.
They also had bad resistors and caps in the soft-clip, and of course dirty
controls, one of which could be the OP's problem.

Mark Z.

--
Please reply only to Group. I regret this is necessary. Viruses and spam
have rendered my regular e-mail address useless.


"Stephen Sank" wrote in message
...
If there isn't smoke & flames pouring out of it, it's a miraculously
healthy 7240PE. Every
retail guy I've ever known referred to the "PE" designation as meaning
"Purchase Extinguisher"
or "Probable Explosions". That has got to be one of the most terrifyingly
badly built &
flammable receivers ever made. My advice is - Run away!

--
Stephen Sank, Owner & Ribbon Mic Restorer
Talking Dog Transducer Company
http://stephensank.com
5517 Carmelita Drive N.E.
Albuquerque, New Mexico [87111]
505-332-0336
Auth. Nakamichi & McIntosh servicer
Payments preferred through Paypal.com
"Glenn Barry" wrote in message
u...
HI All,

I've got a NAD 7240PE which has low output level from the Pre-Amp on the
left channel. I dont yet have a schematic/repair manual, but I'm working
on
that.
In the meantime has anyone out there had experience repairing one of
these
that could point me in the direction of which components to
check/replace.

Any and all tips appreciated

Thanks

Glenn