Question about Thomson 28VK25US TV

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Thomson Tv 28 DG 21 K

Hi i,ve got a Thomson TV ICC17 series with two problems. 1. Sometimes the tv does not power up the stand by LED just blink 2 then 7 times. 2. If the tv is on the problem is that the picture displayed is larger than normal and the vertical lines are bend towards the inside seems an E-W problem. How can i solve these problems??

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  • Celeri Alex Oct 06, 2007

    HI chrispurs1,
    I've followed your advice and i found that Transistor TL 59 was short. I replace it but the problem is still the same. I'm I on the right way??

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Hi. This could be the solution for the problem with for the led blinking fault code. The icc17 chassis is notorius for this problem but there are lots of things that can cause it I have listed the most common for you. FAULT DUE TO HT GOING OVER 200V, RP63 243K GONE HIGH IN VALUE, CAN ALSO CAUSE FURTHER DAMAGE, 250V AVALANCHE DIODE RB06 ON CRT BASE AND SOUND OUTPUT IC. CHECK ZL13 FUSE SUPPLY TO FRAME OUTPUT IC. REPLACE TL02 (BF422) AND TL59 (BC857 SMD) IN THE BEAM CURRENT LIMITING CIRCUIT. If your not at all sure get repair shop to take a look try & find one that does free estimates.

Posted on Oct 05, 2007

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1)Whenever the word "sometimes" is used,a good visual inspection of PS,horiz,regulation & vert. circuits are needed.Solder any/all bad connects. 2)IHVT aka flyback is the usual culprit. Get part # and ask distributor how popular it is? Any info gathered when doing repairwork can be helpful.!

Posted on Oct 05, 2007

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