Comments on: TV/Monitor Fault Diagnosis https://jestineyong.com/tvmonitor-fault-diagnosis/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Wed, 04 Nov 2020 07:09:55 +0000 hourly 1 https://wordpress.org/?v=5.4.19 By: Enoch https://jestineyong.com/tvmonitor-fault-diagnosis/comment-page-1/#comment-371869 Wed, 04 Nov 2020 07:09:55 +0000 https://www.jestineyong.com/?p=3142#comment-371869 In reply to beh.

Good morning sir I have CRT TV 74cm standby flickering please help

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]]> By: ganiyu https://jestineyong.com/tvmonitor-fault-diagnosis/comment-page-1/#comment-320074 Wed, 16 Aug 2017 10:13:07 +0000 https://www.jestineyong.com/?p=3142#comment-320074 hello my tube tv is not receiving tv channel and the av only supply sound no picture what should i do

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]]> By: praveen https://jestineyong.com/tvmonitor-fault-diagnosis/comment-page-1/#comment-294916 Sun, 17 Jul 2016 14:39:26 +0000 https://www.jestineyong.com/?p=3142#comment-294916 In reply to raymundo saura.

Hi .i am praveen.i have new tv kit using in akai 21 inch tv. The picture tube back blow but no display. In cpt 180 volt in rgb reach.no other voltage. H transistor okipls give solution. .

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]]> By: Jestine Yong https://jestineyong.com/tvmonitor-fault-diagnosis/comment-page-1/#comment-282118 Mon, 28 Mar 2016 09:05:46 +0000 https://www.jestineyong.com/?p=3142#comment-282118 In reply to Samuel.

HI Samuel,
If the tube base is not On this means the flyback is not energized. Have you checked if the base of HOT have any pulse waveform?
Second case you need to send the photos to my email.

Jestine

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]]> By: Samuel https://jestineyong.com/tvmonitor-fault-diagnosis/comment-page-1/#comment-281699 Sat, 26 Mar 2016 04:19:12 +0000 https://www.jestineyong.com/?p=3142#comment-281699 Am a tech frm kenya i have a two sets of LG flat ron tv
1.no display on screen signal sound is their,shooting 110 in flyback ok,180v on tube base hearter are not on,whats the problem sir.

2.display on screen very distorted &shows light @ top left other parts of screen dark

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]]> By: Jestine Yong https://jestineyong.com/tvmonitor-fault-diagnosis/comment-page-1/#comment-277275 Wed, 17 Feb 2016 23:22:47 +0000 https://www.jestineyong.com/?p=3142#comment-277275 In reply to Dejen.

Hi Dejen,

You are referring to transistor or IC?

Jestine

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]]> By: Dejen https://jestineyong.com/tvmonitor-fault-diagnosis/comment-page-1/#comment-277245 Wed, 17 Feb 2016 07:36:21 +0000 https://www.jestineyong.com/?p=3142#comment-277245 hi sir
i am from Ethiopia, i live in remote area, my tv power supply bord burn ic D2498. i have ic D2499,may i replace it. b/c D2498 is not available.

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]]> By: raymundo saura https://jestineyong.com/tvmonitor-fault-diagnosis/comment-page-1/#comment-196147 Sun, 06 Oct 2013 02:01:23 +0000 https://www.jestineyong.com/?p=3142#comment-196147 even on the reply\question of everybody i do got some very important info and helpful on my part thanks for the every article you publish GOD bless

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]]> By: Amir Mukhtar https://jestineyong.com/tvmonitor-fault-diagnosis/comment-page-1/#comment-192867 Sun, 09 Jun 2013 20:03:34 +0000 https://www.jestineyong.com/?p=3142#comment-192867 Sir
Thanks you again for Great addition.

thank you
Amir Mukhtar

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]]> By: Jestine Yong https://jestineyong.com/tvmonitor-fault-diagnosis/comment-page-1/#comment-119828 Mon, 10 Sep 2012 12:22:03 +0000 https://www.jestineyong.com/?p=3142#comment-119828 In reply to Gerson.

Hi Gerson,

Check the supply voltage to the vertical output ic first. Make sure no dry joints. If all tested good then directly replace the vertical output ic. As for the ozone smell amke sure the anode cap area is clean.

Jestine

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