cz 5100-whats that dreadful NOISE?

[rokbox2112]

Well My beloved Crown 5100 From Hilo,Hi is most mint thing I got.Don't play it too much.But just last night, I decided Plug it up. And play the radio a bit. OK... Past 10 mins or so ready for some Itals roots sessions. switch to cassette ANDDD OMG!!! I jumped to a sound unreal. Like a chopper roaring down the street,and the pitch decending. My woofs were htting so hard, i yanked the cord out of the wall.
On one note the leds were like RxR lights never seeing anything like this. What was that Dreadful sound.
BAD BOY HEEELLLPPPP!

 

[baddboybill]

Your record bar sounds dirty. You need to open up and spray some switch cleaner like deoxit into record bar then work it 20-30 times. This should do trick. If you don't want to open now then you can open deck door, take tape out and push the record lock switch inside of cassette tray area. After you push it to hold then press the record button and then stop button while still holding lock switch. Do this several times like maybe 10-15 then do a test. The issue should go away for a little while but expect it to come back unless you actually clean it. Good luck.

 

[baddboybill]

Oh if this don't work then there is a possibility of bad ground to deck

 

[rokbox2112]

Your record bar sounds dirty. You need to open up and spray some switch cleaner like deoxit into record bar then work it 20-30 times. This should do trick. If you don't want to open now then you can open deck door, take tape out and push the record lock switch inside of cassette tray area. After you push it to hold then press the record button and then stop button while still holding lock switch. Do this several times like maybe 10-15 then do a test. The issue should go away for a little while but expect it to come back unless you actually clean it. Good luck.

Your record bar sounds dirty. You need to open up and spray some switch cleaner like deoxit into record bar then work it 20-30 times. This should do trick. If you don't want to open now then you can open deck door, take tape out and push the record lock switch inside of cassette tray area. After you push it to hold then press the record button and then stop button while still holding lock switch. Do this several times like maybe 10-15 then do a test. The issue should go away for a little while but expect it to come back unless you actually clean it. Good luck.

Ok my Master! I always put faith in you... I did realize that night only when I switched from radio it was barely visible. at cassette mode. forget it. And as for other,tip? should I have box plugged in and move some ground on don't even dare? Thank you!

 

[baddboybill]

First start with record bar. Another issue could be broken wire for tape head causing feedback. It could either be broken on head itself or on board. But I would start with record bar, then look for broken wire on head or on board from tape head. If that checks out then check grounding of tape decks

 

[k2j]

Fwiw sounds similar to the pro lem I had with mine.. no ground to tape deck, and also the wires to one of the mics had busted off and laying loose inside case