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JVC CRT TV With Horizontal Line Problem. Model# C-210ED.

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When this TV set came to my shop there was a white line across the screen. When hitting the side of the TV set, the picture comes back for a while then the horizontal line show up on the screen again. With this problem showing, I headed directly to the vertical section starting with the IC AN5515 and started checking for loose or cold soldering joints. As I scanned the area with a magnifying lens, I could not see any loose or cold joints. I turned the TV on and started checking for the voltages on the IC. There were no voltages reaching this IC. I traced the VCC line back to the fly back transformer because I know that is where the 24 volts come from.

As I was tracing the ACD line with a magnifying lens, I came across a resistor that is acting like a fuse and one of its legs was loose. I soldered that resistor out of the PC board and I checked the integrity of it and found it in bad shape. It was 4.2 ohms located in (R555) in the high volt area.
I put another one in and soldered the two legs. The moment I fired up the TV, it worked fine for a while then the horizontal line was displayed on the screen again. I checked the resister that I put in and it was fine. I traced it back to the vertical IC AN5515 and checked the voltages there and there was 24 volts reaching that IC.

I checked all the capacitors in the vertical section with ESR meter and they all checked fine. It seems like this IC was getting weaker in this set. So I decided to put a new one in and fired up the set. It worked nicely for a long time.

I service the area of Bethlehem located in Palestine and I do a lot of electronic repair in this area. I deal mainly with CRT Tv's, CRT computer screens, LCD computer monitors and a lot more.

This article was prepared for you by Waleed Rishmawi, one of our 'Master Authors'.
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Published in our category of CRT Televisions on Friday July 1, 2011 with the keywords , , , , , .
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2 Comments

  1. beh
    Posted Saturday July 2, 2011 at 8:59 am | Permalink

    thank you somuch waleed of good repair
    beh

  2. Waleed
    Posted Thursday July 7, 2011 at 8:41 am | Permalink

    you are most welcome. thanks for the encouragement. God bless you.

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