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Old 9th August 2004, 07:48 PM   #1
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Default Cambridge Audio A1 V2 Amp Problem

Hello there everybody

Forgive me for my ignorance......

I have a Cambridge Audio A1 v2 Amp.
The problem is that the 2 x T4A fuses keep blowing. These are located on the Main board before the diodes.
The mains fuse (T2A) does not blow when the others do.

Can anybody suggest any possible course of actions and if so, is it worth it?

Thanks
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Old 10th August 2004, 07:52 AM   #2
Nuuk is offline Nuuk  United Kingdom
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Quite obviously you have a major fault somewhere.

If you are not experienced enough to track down the fault and fix it, an alternative is to gut the amp and convert it into a Gainclone.

Hopefully you can use the existing PSU (or at least the transformer) so cost shouldn't be too high and you will have a great sounding amp.
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Old 10th August 2004, 08:02 AM   #3
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Default Re: Cambridge Audio A1 V2 Amp Problem

Quote:
Originally posted by twits4twats
Hello there everybody

Forgive me for my ignorance......

I have a Cambridge Audio A1 v2 Amp.
The problem is that the 2 x T4A fuses keep blowing. These are located on the Main board before the diodes.
The mains fuse (T2A) does not blow when the others do.

Can anybody suggest any possible course of actions and if so, is it worth it?

Thanks

Looks like a blown output stage.
Check with a DMM the output transistors and if broken replace them. If you can not do it yourself find someone to do it for you. just remember where to put wich transistor.
Check also the drivers.
If that doesn't work you can still make gainclone or a P3a from rod elliot.
good luck
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Old 10th August 2004, 02:32 PM   #4
Vikash is offline Vikash  United Kingdom
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Quote:
Originally posted by Nuuk
Hopefully you can use the existing PSU (or at least the transformer) so cost shouldn't be too high and you will have a great sounding amp.
That's what I did when I first got Brian's kit. Was in a hurry to test it out so I gutted my old CA A1 MK1 and threw a GC together
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Old 23rd February 2011, 12:11 PM   #5
pkeyy is offline pkeyy  Czech Republic
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Hello everyone
I bought cambridge audio A1 v3.0.From unexpected error it blown up.definitelly is IC on heatsink.can enyone have a look and check what number of IC is it?
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