Receiver "check-out"

burl

New Member
After reading some of the posts, and just purchasing a Sansui quad receiver on Ebay, what are the steps that an average person can do to assure the piece they just bought is working correctly, short of making sure sound is coming from the speakers when it should ? Thanks to all who reply.:dunno:
 
Well, there are certainly a few pre power-on check you shoud do.

1) Smell the set. See if there is any odour of burnt components before any power is applied.

2) Do a physical check for frayed line cord, proper rated fuses (you'd be surprised what you may find in those fuse holders), look at all caps esp. any electrolytics for signs of leakage and/or heat damage, burnt resistors, etc.

3) Check the LINE VOLTAGE setting if the set is multi-voltage.

4) If you can get a variac, then it's best to power up at say 30 VAC then move up slowly to 115 VAC over a period of a few hours.

Always keep an eye and ear on the set during those first few seconds. If any of the fuses blow, you're into debug mode.

If all goes well and no smoke appears and no fuses blow, then it's on to logical testing of all the features. First, turn all feature switches OFF or to their logical detent position AND always set the VOLUME to zero! Attach a set of OLD speakers (the 'I don't care what happens to them variety) and slowy advance the VOLUME from 0 until you hear sound. You may also hear "scratching".

IF you get sound, we have lift-off.

So, we have a basically working set.

Before you proceed to rock'n'roll you should do the main amp balance adjustment followed by the output amp current adjustment. Having these done will assure you that you won't cook-off one of the output SS devices.

Using the FM/AM see if you can test all the different switches and controls. Adding an outboard device (tuner, CD, etc.) check all TAPE and AUX inouts.

Paul
 
Back
Top Bottom