Comments on: Electronics Repair Questions/Answers and Testimonials -Part 67 https://jestineyong.com/electronics-repair-questionsanswers-and-testimonials-part-67/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Sun, 01 May 2011 22:01:59 +0000 hourly 1 https://wordpress.org/?v=5.4.24 By: admin https://jestineyong.com/electronics-repair-questionsanswers-and-testimonials-part-67/comment-page-1/#comment-9567 Sun, 01 May 2011 22:01:59 +0000 https://www.jestineyong.com/?p=3243#comment-9567 HI Ajay,

Check this out:

https://www.jestineyong.com/?p=403

Jestine

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]]> By: Ajay Singh https://jestineyong.com/electronics-repair-questionsanswers-and-testimonials-part-67/comment-page-1/#comment-9564 Sat, 30 Apr 2011 16:15:14 +0000 https://www.jestineyong.com/?p=3243#comment-9564 The problem is that HORIZONTAL TRANSISTOR D5703 always overheat and shoted. After changing the new transistor, the power will switch on a few seconds then blink gradually then power goes off and output transistor burns. During start up period the flyback makes klik noise. Hope you could give me the answer soon because my customer wants their TV urgently. Thanks.

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]]> By: admin https://jestineyong.com/electronics-repair-questionsanswers-and-testimonials-part-67/comment-page-1/#comment-7855 Thu, 02 Dec 2010 02:19:15 +0000 https://www.jestineyong.com/?p=3243#comment-7855 HI Asaa,

Have you check the dc supply to the main power supply power ic? Certain power supply use optoisolator ic and the cpu will send a signal to the optoisolator ic in order to fully turn on the main power supply. If there is a missing signal or the cpu is bad then check the optoisolator ic area or replace the cpu.

Jestine

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]]> By: Asaa https://jestineyong.com/electronics-repair-questionsanswers-and-testimonials-part-67/comment-page-1/#comment-7852 Wed, 01 Dec 2010 15:32:58 +0000 https://www.jestineyong.com/?p=3243#comment-7852 Hi justine, this my first time to post comment and like u to reply as soon as posible. My problem is 21 tv kit/2 ic tv chassis,it is on standby mode and couldn't start with program button or remote. But if i brige one white condeser beside LC863532c it will start but will not functioning well. Please help me. I will also like to get your book which will help me to build my repairing skill so that i can follow others to testfies your good work. Thank and remain blessed bye

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]]> By: admin https://jestineyong.com/electronics-repair-questionsanswers-and-testimonials-part-67/comment-page-1/#comment-7581 Sun, 07 Nov 2010 19:28:03 +0000 https://www.jestineyong.com/?p=3243#comment-7581 HI Shaidan,

If the IC is hot then it can be the ic itself have problem and also could be cause by corresponding components fault. Make sure the supply voltage is within range and the corresponding components are good before install a new IC.

Jestine

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]]> By: Shahidan https://jestineyong.com/electronics-repair-questionsanswers-and-testimonials-part-67/comment-page-1/#comment-7572 Sun, 07 Nov 2010 08:43:02 +0000 https://www.jestineyong.com/?p=3243#comment-7572 Hi,Jestine.

I have an Akai HiFi which uses two STK 4026 hybrid amplifier chips . Recently it gave up the ghost . On checking I found one of the ics was very hot to the touch. With my very limited experience I couldn't think of what had caused the problem.

Please tell me what I should do next as I would like to make the amplifier work again.

Thank you.

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