Comments on: Servicing Yamaha Amp AX-530

By: Ivan

Ivan — Tue, 05 May 2020 16:48:07 +0000

Goodness gracious congz king engineer, thanks have learn alot from this article

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By: Nicolae

Nicolae — Wed, 25 Mar 2020 20:13:35 +0000

Hello,

I would like to buy one of these units and was thinking that most likely the capacitors would need replacing. As I am new to this and my experience is limited I would really appreciate any guidance on what to look out for...

Thanks!

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By: Ulises Aguilar Pazzani

Ulises Aguilar Pazzani — Mon, 27 Nov 2017 03:53:43 +0000

Mr Subramanian , great fix and a lot of patience , the is the difference from a good tech Sir,, I Like Your videos

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By: Oluwatosin

Oluwatosin — Fri, 24 Nov 2017 11:02:46 +0000

Nice job

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By: Lee

Lee — Fri, 24 Nov 2017 10:51:15 +0000

Nice work Parasuraman. As always you go above & beyond the call of duty.

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By: James

James — Fri, 24 Nov 2017 06:27:21 +0000

The customer probably didn't realize the complexity of the issue at hand, only us who desire such understanding truly appreciate the dedication and training you offer from your own experiences. Excellent read, many thanks.

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By: Parasuraman S

Parasuraman S — Thu, 23 Nov 2017 15:53:33 +0000

In reply to Albert.

Well. I really appreciate your feed back. Yes, you may be right there. But what I do today is a result of many, many years of experience and I get some sort of a hunch whenever I see these caps and if the customer agrees, I just replace all of them, bringing a 'system cool' for the set. As you already know, when a set works with all new capacitors, it gets new life and works with less strains!

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By: Albert

Albert — Thu, 23 Nov 2017 13:31:09 +0000

Thank you for another nice repair story dear Parasuraman! Seeing all those removed e-caps again (as often) that you said were (bad ESR) at the brim, I wonder if they could not have been that right from the start without getting any worse for years? Because I know that mainly those special 6.3V e-caps on PC mainboards have special very low ESR characteristics. Maybe you therefore should move the level of disqualifying the doubtful e-caps a bit? I hope that the customer will give you some feedback in time because it is very disappointing if someone doesn't appreciate all the hard work that's been done!

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By: Parasuraman S

Parasuraman S — Thu, 23 Nov 2017 12:44:25 +0000

In reply to Irfan.

Only when I notice majority of components are bad that I resort to changing especially the Electrolytic Capacitors in toto. My experience has taught me that changing electrolytic capacitors in an old set is the primary thing one should do. While writing this, I am doing the same thing in an antique Fair Mate Mono Tape Recorder. The ESRS are way out of range!

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By: Irfan

Irfan — Thu, 23 Nov 2017 09:56:48 +0000

Excellent. Mr Parasuraman why you always replace too many components even when they are looking fine.

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