Comments on: Overboard Servicing Done In AKAI Cassette Deck Model GXC-709D

By: Parasuraman S

Parasuraman S — Thu, 09 Oct 2025 07:46:47 +0000

In reply to Yogesh Panchal.

Yes, very true! Many thanks for your comments, dear Yogesh Bai!

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By: Yogesh Panchal

Yogesh Panchal — Wed, 08 Oct 2025 12:41:04 +0000

Excellent Repair! Sir,
The company should have used a PCB holder connector instead of a bunch of jumpers.

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By: Parasuraman S

Parasuraman S — Wed, 08 Oct 2025 00:34:15 +0000

In reply to Waleed Rishmawi.

Many thanks, dear friend! May God bless you too!

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By: Waleed Rishmawi

Waleed Rishmawi — Tue, 07 Oct 2025 05:54:48 +0000

a very detailed and lots of information provided...I got distracted along the way but I finally got it...thanks for sharing and what you did is amazing...keep up the good work and have a blessed day

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By: Parasuraman S

Parasuraman S — Mon, 06 Oct 2025 07:40:41 +0000

In reply to George Persico.

Many thanks for your encouraging comments!

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By: Parasuraman S

Parasuraman S — Mon, 06 Oct 2025 00:35:43 +0000

In reply to Philip.

Yes, the AC input is to a step down transformer from which secondary voltages are tapped. Though the transformer would stand and protech such surges, the primary would get burnt as there was no fuse and not even a thermal fuse! Many thanks for your involved comments, dear Philip!

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By: Parasuraman S

Parasuraman S — Mon, 06 Oct 2025 00:31:18 +0000

In reply to Philip.

Yes, tampering is a nightmare for technicians who want to do a thorough repair job. But with the schematic, most of it can be restored. Right now, I am working on a three-in-one Sharp set, radio board of which has been very badly tampered. Hours, days and weeks have already passed on it! But such challenges keep us charged and pushe us further and farther. Many thanks for your comments!

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By: George Persico

George Persico — Sun, 05 Oct 2025 16:55:48 +0000

Very nice VERY well documented repair, pictures tell the story.

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By: Philip

Philip — Sun, 05 Oct 2025 10:48:42 +0000

Unlike the usual SMPS circuits, I'm tradeing on an unfamiliar ground here. The enlarging isnt very clear, but what little I can make of the power input of the circuit is that power goes directly to what I perceive to be an input transformer then through fuses, then to the rectifier packs ...... to me it looks like a good arrangement from the surge protection perspective. The transformer and the fuse and diodes absorb the whacking during a wrecking invasion.

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By: Philip

Philip — Sun, 05 Oct 2025 06:41:16 +0000

You were all over the board solely with a fixed mind to repair it. Insanity is when some technician disolders a handful of the crisscrossing cables and leaves them hanging, or indulges on a questionable exercise of pulling out unknown ICs. Without a similar board or a schematic to refer to for ideas, that will leave most of us techs stuck; no trial and error, no guess work, no risking, no nothing ! End of story !

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