NAD 7020 help

[avivz]

Hi guys,

I have NAD 7020 receiver with 2 different problems:

1. After tuning to some station (FM) and leaving it to work several hours it get out of tune. The more time passes, the more it gets out of tune and has to be re-tuned manually.

2. After powering up no sound comes out. After some time it seems that something has warmed up and it starts working. The more I leave the receiver turned off, the more I have to wait till sound is heard when powering up for the first time.

I hope someone could direct to the faulty sections/parts

Thanks in advance...

 

[planet10]

Can't help you with diagnosis, but i do have a pdf of the (early) service manual if that would help.

dave

 

[moamps]

...After tuning to some station (FM) and leaving it to work several hours it get out of tune....

AFC circuitry doesn't work or is switched off.

 

[computeruser]

I would like a copy of that 7020 manual please. I have been looking for that for a long time.
blambert at ca dot ibm dot com
Thanks

 

[planet10]

3.8 MB for a limited time will be at

http://p10hifi.net/planet10/NAD7020early_servMan.pdf

dave