Aiwa AD6900 MkII - UK Vintage Radio Repair and Restoration Discussion Forum

David Godwin · 28th Feb 2005, 9:58 am

Not quite vintage yet, but this 3 head cassette machine has a perished drive belt - it's the flat kind, about 4mm. I have asked Aiwa if there is a newer machine that uses the same type, but they seem to have forgotton that they made this model.

mickjjo · 28th Feb 2005, 10:37 am

If you know the size of the belt you may get lucky here:-

http://www.donberg.ie/warehs/groupab.htm

Regards, Mick.

Nickthedentist · 28th Feb 2005, 7:25 pm

David,

CPC have an excellent range of generic cassette deck belts. They're listed by width (e.g. 4mm) and diameter.

The easiest way to measure this is to cut the belt, and measure the total unstretched length in mm. Obviously, this is the circumference. Then think back to maths lessons and divide the cirumference by pi (3.14 will do!) to get the diameter.

Alternatively, you could fold the belt double, or draw some circles on paper with a compass and see which one the belt fits.

Let me know the diameter and I can look it up to see if it's available.

Nick.

Anton90125 · 5th May 2005, 6:45 pm

I have a slightly older Aiwa AD6900 deck which had the problem of the idler and other rubber bits being in various stages of perishment. On discussions on the internet with other AD6900 owners it seems that this is a common fault. I discoverd this great bloke in Southhampton who repaired/tested the deck . It works a treat now and given it was sold around 1978 it compares favourably with my Nakamichi Cr5 machine. His email is diverse9@tcp.co.uk or
diverse@divdev.fsnet.co.uk

He has a great site:http://www.divdev.fsnet.co.uk/

Nickthedentist · 5th May 2005, 9:43 pm

So, a happy ending. It's a lovely looking deck, and from what you say, it sounds as good as it looks too. Should be good for another 25 years now

And that chap's website has got some useful stuff on it, including fault reports for audio equipment - worth a look.

Nick.

28th Feb 2005, 9:58 am	#1
David Godwin Retired Dormant Member Join Date: Feb 2005 Posts: 3	Aiwa AD6900 MkII Not quite vintage yet, but this 3 head cassette machine has a perished drive belt - it's the flat kind, about 4mm. I have asked Aiwa if there is a newer machine that uses the same type, but they seem to have forgotton that they made this model.

28th Feb 2005, 10:37 am	#2
mickjjo Rest in Peace Join Date: Jul 2004 Location: Dartford, Kent, UK. Posts: 1,661	Re: Aiwa AD6900 MkII If you know the size of the belt you may get lucky here:- http://www.donberg.ie/warehs/groupab.htm Regards, Mick.

28th Feb 2005, 7:25 pm	#3
Nickthedentist Dekatron Join Date: Jan 2005 Location: Oxford, UK. Posts: 17,843	Re: Aiwa AD6900 MkII David, CPC have an excellent range of generic cassette deck belts. They're listed by width (e.g. 4mm) and diameter. The easiest way to measure this is to cut the belt, and measure the total unstretched length in mm. Obviously, this is the circumference. Then think back to maths lessons and divide the cirumference by pi (3.14 will do!) to get the diameter. Alternatively, you could fold the belt double, or draw some circles on paper with a compass and see which one the belt fits. Let me know the diameter and I can look it up to see if it's available. Nick.

5th May 2005, 6:45 pm	#4
Anton90125 Retired Dormant Member Join Date: May 2005 Location: South London Posts: 2	Re: Aiwa AD6900 MkII I have a slightly older Aiwa AD6900 deck which had the problem of the idler and other rubber bits being in various stages of perishment. On discussions on the internet with other AD6900 owners it seems that this is a common fault. I discoverd this great bloke in Southhampton who repaired/tested the deck . It works a treat now and given it was sold around 1978 it compares favourably with my Nakamichi Cr5 machine. His email is diverse9@tcp.co.uk or diverse@divdev.fsnet.co.uk He has a great site:http://www.divdev.fsnet.co.uk/ Attached Thumbnails

5th May 2005, 9:43 pm	#5
Nickthedentist Dekatron Join Date: Jan 2005 Location: Oxford, UK. Posts: 17,843	Re: Aiwa AD6900 MkII So, a happy ending. It's a lovely looking deck, and from what you say, it sounds as good as it looks too. Should be good for another 25 years now And that chap's website has got some useful stuff on it, including fault reports for audio equipment - worth a look. Nick. Last edited by Nickthedentist; 5th May 2005 at 9:46 pm.