Comments on: Electronic Repair Questions/Answers & Testimonials- Part 33 https://jestineyong.com/electronic-repair-questionsanswers-testimonials-part-33/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Mon, 27 Jul 2015 08:30:35 +0000 hourly 1 https://wordpress.org/?v=5.4.19 By: admin https://jestineyong.com/electronic-repair-questionsanswers-testimonials-part-33/comment-page-1/#comment-3763 Sat, 24 Oct 2009 02:10:57 +0000 https://www.jestineyong.com/?p=2036#comment-3763 Hi Martin,

It can be the capacitor but the value is printed on the body and you can read it from there. It can also be some shorted semiconductors along the inverter circuit that you need to check too.

Jestine

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]]> By: Martin Harrold https://jestineyong.com/electronic-repair-questionsanswers-testimonials-part-33/comment-page-1/#comment-3759 Fri, 23 Oct 2009 17:20:55 +0000 https://www.jestineyong.com/?p=2036#comment-3759 I have an Acer lcd monitor model AL 1714. The power supply is correct @ 19 volts
but I have no display. I found an open circuit 3 amp fuse on the invertor pcb. When this was replaced, the monitor indicator lamp was flashing on and off,(Orange) but still no display. Can you tell me if the capacitors that feed the individual output supplies could be at fault? and also the value of these capacitors
Very many thanks Martin

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]]> By: admin https://jestineyong.com/electronic-repair-questionsanswers-testimonials-part-33/comment-page-1/#comment-2661 Thu, 14 May 2009 14:12:10 +0000 https://www.jestineyong.com/?p=2036#comment-2661 Hi Chaotic,

I suggest that you check the red circuit which include the driver transistor. If possible compare the RED circuit with the Blue and Green circuit by using voltage and scope testing. From there you will have a guidance on what to check.

jestine

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]]> By: admin https://jestineyong.com/electronic-repair-questionsanswers-testimonials-part-33/comment-page-1/#comment-2660 Thu, 14 May 2009 14:09:49 +0000 https://www.jestineyong.com/?p=2036#comment-2660 HI Chaotic,

I suggest that you isolate the problem by visiting this link:

http://www.scribd.com/doc/2957819/TT204-Identifying-television-SMPS-problems

Jestine

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]]> By: chaotic https://jestineyong.com/electronic-repair-questionsanswers-testimonials-part-33/comment-page-1/#comment-2654 Wed, 13 May 2009 09:39:08 +0000 https://www.jestineyong.com/?p=2036#comment-2654 sir,

i am repairng a sharp television but it has no power..and the plyback is producing a sound like a high voltage is present but it has no power..what is the remedy for that?

thank you..

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]]> By: chaotic https://jestineyong.com/electronic-repair-questionsanswers-testimonials-part-33/comment-page-1/#comment-2653 Wed, 13 May 2009 09:34:11 +0000 https://www.jestineyong.com/?p=2036#comment-2653 sir,

i have a crt colored television but the color of the display is red only..what is the possible troubles and repairs for that...do i have to replace all the transistors in the crt board?

thank you...

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]]> By: admin https://jestineyong.com/electronic-repair-questionsanswers-testimonials-part-33/comment-page-1/#comment-2636 Sat, 09 May 2009 15:54:16 +0000 https://www.jestineyong.com/?p=2036#comment-2636 HI Nonoy,
Is the CPU receiving the supply voltage?

Jestine

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]]> By: nonoy https://jestineyong.com/electronic-repair-questionsanswers-testimonials-part-33/comment-page-1/#comment-2628 Sat, 09 May 2009 01:37:57 +0000 https://www.jestineyong.com/?p=2036#comment-2628 Jestine Yong,

Sir,

I am fixing Philips FW17personal mini system, totally not working 2 days
ago, i checked power supply its working, but no standby power.

Thank you Jestine,

Nonoy Abilar

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