Comments on: July 2010 Repair Newsletter https://jestineyong.com/july-2010-repair-newsletter/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Fri, 15 Jul 2011 15:40:51 +0000 hourly 1 https://wordpress.org/?v=5.4.19 By: Ben LeMire https://jestineyong.com/july-2010-repair-newsletter/comment-page-1/#comment-19842 Fri, 15 Jul 2011 15:40:51 +0000 https://www.jestineyong.com/?p=2955#comment-19842 I have a CRT tester / rejuvenator for sale if any one needs it.
Make me an offer
Contact Ben LeMire
In Salem Oregon at
lemire123@netzero.net or call 503 999 1304

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]]> By: admin https://jestineyong.com/july-2010-repair-newsletter/comment-page-1/#comment-7611 Wed, 10 Nov 2010 01:25:39 +0000 https://www.jestineyong.com/?p=2955#comment-7611 HI Shamsul,

What is the complaint of the sharp tv?

Jestine

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]]> By: Shamshul https://jestineyong.com/july-2010-repair-newsletter/comment-page-1/#comment-7591 Tue, 09 Nov 2010 02:44:44 +0000 https://www.jestineyong.com/?p=2955#comment-7591 What i know Sharp tv got the protection circuit. if audio section or others part got problem, set will turn to standby mode when power on. so i don't know where the problem. any idea how to confirm ???

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]]> By: admin https://jestineyong.com/july-2010-repair-newsletter/comment-page-1/#comment-6997 Tue, 28 Sep 2010 19:51:55 +0000 https://www.jestineyong.com/?p=2955#comment-6997 Hi Shamsul,

Try check component in the optoisolator circuit. It could be a resistor that had gone high ohm.

Jestine

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]]> By: Shamshul https://jestineyong.com/july-2010-repair-newsletter/comment-page-1/#comment-6989 Tue, 28 Sep 2010 04:49:28 +0000 https://www.jestineyong.com/?p=2955#comment-6989 TV AKIRA - after check at B+ voltage after transformer cap 160v/100uf got 200v. it suppose to 130v. now what i found both supply got high voltage. already check component at primary side and changed new ecap still fail. my question have a flyback related ??? maybe can generate voltage ??? pening - pening

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]]> By: admin https://jestineyong.com/july-2010-repair-newsletter/comment-page-1/#comment-6985 Mon, 27 Sep 2010 19:03:09 +0000 https://www.jestineyong.com/?p=2955#comment-6985 HI Shamsul,

Sorry i do not have the unlock code. Try check the cpu or the eeprom IC to see if the supply voltage is good nor not.

Jestine

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]]> By: Shamshul https://jestineyong.com/july-2010-repair-newsletter/comment-page-1/#comment-6981 Mon, 27 Sep 2010 12:59:26 +0000 https://www.jestineyong.com/?p=2955#comment-6981 TV Brand GC (Gemilang cekal)problem on power screen shown paddle lock (gambar kunci mangga) try to push any button at tv and remote control but nothing happen. maybe need lock code but??????

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]]> By: admin https://jestineyong.com/july-2010-repair-newsletter/comment-page-1/#comment-6975 Sun, 26 Sep 2010 20:37:46 +0000 https://www.jestineyong.com/?p=2955#comment-6975 HI Shamsul,
Sorry no idea on this.

Jestine

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]]> By: Shamshul https://jestineyong.com/july-2010-repair-newsletter/comment-page-1/#comment-6974 Sun, 26 Sep 2010 15:26:06 +0000 https://www.jestineyong.com/?p=2955#comment-6974 Already check all component at primary side, all - OK. now just suspect transformer spoilt at 25v side, what i know not easy to find the replacement for transformer . can i modified 25v drop to 16v??? how???

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]]> By: admin https://jestineyong.com/july-2010-repair-newsletter/comment-page-1/#comment-6956 Fri, 24 Sep 2010 14:21:22 +0000 https://www.jestineyong.com/?p=2955#comment-6956 HI Shamsul,
Then i suggest that you check all components in the primary side. It could be one of the component that have problem increased the duty cycle causing the output to increase.

Jestine

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