Comments on: Return Of TECHLON-TCN-D2 Induction Cooker From Getting Written Off https://jestineyong.com/return-of-techlon-tcn-d2-induction-cooker-from-getting-written-off/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Wed, 24 Jun 2026 08:35:36 +0000 hourly 1 https://wordpress.org/?v=5.4.21 By: Parasuraman S https://jestineyong.com/return-of-techlon-tcn-d2-induction-cooker-from-getting-written-off/comment-page-1/#comment-458446 Wed, 24 Jun 2026 08:35:36 +0000 https://jestineyong.com/?p=37519#comment-458446 In reply to Philip.

Many thanks for your elaborate comments and inputs!

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]]> By: Philip https://jestineyong.com/return-of-techlon-tcn-d2-induction-cooker-from-getting-written-off/comment-page-1/#comment-458444 Tue, 23 Jun 2026 23:06:09 +0000 https://jestineyong.com/?p=37519#comment-458444 In the cause of repair, your familiar systematic approach was put on hold, and, strangely, an unusual selected parts replacement style took over. That was quite unlike you, sir. Your normal CAPs early 'laying off' is excusable. In the LG solutions that you did well to point out, a thoroughly cleaning the boards exercise should as well never be overlooked, neither should the magic of entire resoldering be underrated. For 5 days I had run out of ideas for a NO SIGNAL problem in a Vitron 43 inch TV, yet the ignored very light layer of unsuspected fine dust on the single board was responsible for my frustration. USB was okey. How can the USB port be modified for normal video (yellow, red & white jack pins) connection? Maybe the devil just went for a sleep, I'm otherwise afraid it could make a dreadful comeback. All I know is USB pins - 5v, ground, 2 middle pins signal (open to correction).

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]]> By: Parasuraman S https://jestineyong.com/return-of-techlon-tcn-d2-induction-cooker-from-getting-written-off/comment-page-1/#comment-458442 Tue, 23 Jun 2026 11:02:41 +0000 https://jestineyong.com/?p=37519#comment-458442 In reply to Yogesh Panchal.

Ha! Ha! Thanks to all our indirect agents, then! Many thanks for your comments, Yogesh Bai!

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]]> By: Parasuraman S https://jestineyong.com/return-of-techlon-tcn-d2-induction-cooker-from-getting-written-off/comment-page-1/#comment-458441 Tue, 23 Jun 2026 11:01:49 +0000 https://jestineyong.com/?p=37519#comment-458441 In reply to Justice.

Many thanks for the time spent on comments! Glad to know it was useful!

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]]> By: Parasuraman S https://jestineyong.com/return-of-techlon-tcn-d2-induction-cooker-from-getting-written-off/comment-page-1/#comment-458440 Tue, 23 Jun 2026 11:01:17 +0000 https://jestineyong.com/?p=37519#comment-458440 In reply to Imoudu.O.

Filter caps, slave regulator ICs like 3.3V, 1.8V and 1.2V (if any). Jammed on/off button in Remote and control panel. Rest depends on on/off through opto, transistor etc. Many thanks for your comments and query!

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]]> By: Yogesh Panchal https://jestineyong.com/return-of-techlon-tcn-d2-induction-cooker-from-getting-written-off/comment-page-1/#comment-458438 Tue, 23 Jun 2026 07:59:43 +0000 https://jestineyong.com/?p=37519#comment-458438 Good Fix! Sir
I don't know why, but it seems like cockroaches have become a source of income for technicians. Despite having protection circuits, many parts still fail. I fail to understand what their R&D department is actually there for. Anyway, that shouldn't be our concern, since we have to work to earn our livelihood.

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]]> By: Justice https://jestineyong.com/return-of-techlon-tcn-d2-induction-cooker-from-getting-written-off/comment-page-1/#comment-458435 Tue, 23 Jun 2026 04:52:47 +0000 https://jestineyong.com/?p=37519#comment-458435 Mmmmm so interesting. Its true never give up. Thanks for sharing this wonderful article, lot to learn here.

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]]> By: Imoudu.O https://jestineyong.com/return-of-techlon-tcn-d2-induction-cooker-from-getting-written-off/comment-page-1/#comment-458433 Mon, 22 Jun 2026 20:11:17 +0000 https://jestineyong.com/?p=37519#comment-458433 Perhaps this's the most challenging IC you will ever repair,and new techniques learned from your friend I suppose.

Let me ask,if lg 32" is on/off by its self intermittently,what area should I fucus attention on?

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]]> By: Parasuraman S https://jestineyong.com/return-of-techlon-tcn-d2-induction-cooker-from-getting-written-off/comment-page-1/#comment-458420 Sun, 21 Jun 2026 04:05:30 +0000 https://jestineyong.com/?p=37519#comment-458420 In reply to Mark J.

Many thanks, dear Mark!

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]]> By: Mark J https://jestineyong.com/return-of-techlon-tcn-d2-induction-cooker-from-getting-written-off/comment-page-1/#comment-458415 Sat, 20 Jun 2026 18:39:14 +0000 https://jestineyong.com/?p=37519#comment-458415 That induction cooker was really infested. Great job on the repair and restore Parasuraman.

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