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IBS Store – Electronics Supplier

By on June 22, 2010

ibsstore

Found another electronics suppliers from USA. Feel free to browse through the website by clicking on the photo

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19 Comments

  1. Big Ben

    June 23, 2010 at 5:45 am

    hi Mr Yong,i have a Vivax crt tv, and fuse everytime blown.and i suspect on startup resistor and set digital multimetar tu autorange and show notting,if i set to to 20 or 200M ohm resistor show some reading .searching for color code on internet i find this resistor value is 445M Ohm, yellow yellow green blue green.

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  2. Big Ben

    June 23, 2010 at 6:15 am

    one thing more,i have samsung lcd tv,tv turn on but no screen and no sound

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  3. Big Ben

    June 23, 2010 at 6:19 am

    on this samsung tv i found some plastic resistor 5w r12k he show 0,maybe is shorted

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  4. admin

    June 23, 2010 at 9:59 am

    Hi Ben,

    Resistor would not cause the fuse to blow. You may need to check on the bridge rectifier, direct replace the posistor or even check on the semiconductors.

    jestine

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  5. admin

    June 23, 2010 at 10:01 am

    HI Ben,

    You may need to check on the voltage that supply to the inverter IC. A bad mainboard may cause such problem.

    Jestine

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  6. admin

    June 23, 2010 at 10:03 am

    HI Ben,

    r12 may indicate .12 ohm and is a very low ohm resistor and your normal meter can't check that thus you are thinking it is shorted. You may need a Blue ESR meter to check a low ohm resistor value.

    Jestine

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  7. Big Ben

    June 23, 2010 at 2:03 pm

    i will try it tomorow,
    thanks anyway.
    and something more, i have samsung 940n monitor and fet is blown and a can 't read it ,how can i know what fet tu place

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  8. admin

    June 24, 2010 at 6:05 am

    HI Ben,
    Where is this fet located?

    Jestine

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  9. Big Ben

    June 24, 2010 at 8:48 am

    i solved a problem on a samsung lcd tv,problem is with smd fuse on inverer board.on samsung monitor fet is little before transformer with five leggs. for vivax crt tv i waiting for parts,
    Thanks

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  10. Big Ben

    June 24, 2010 at 8:53 am

    but for vivax crt,how can i test posistor and bridge recifier

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  11. Big Ben

    June 24, 2010 at 8:59 am

    and sommething more,i know i am borring, after i disconnect cable betwen two board fuse dont blow

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  12. admin

    June 25, 2010 at 5:59 am

    HI Ben,

    Posistor can't be test and you need to direct replace and retest. For the bridge rectifier you can test the individual diode in the package using meter. All these testing i have compiled it into an ebook at Testing Electronic components dot com.

    Jestine

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  13. admin

    June 25, 2010 at 6:01 am

    HI Ben,

    May i know what two boards you are referring to? I believe one of the board that had cause the fuse to blow and you need to check on the semiconductors

    Jestine

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  14. Big Ben

    June 26, 2010 at 4:07 am

    first power board (small board),second Mainboard (big board) with Flyback Transformer

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  15. Big Ben

    June 26, 2010 at 4:09 am

    is there any way to find what fet is located on samsung monitor,i ask for that information few questons before

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  16. admin

    June 26, 2010 at 9:04 am

    HI Ben,

    If the power fet is located in power section then you can use K2645 as replacement.

    Jestine

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  17. Big Ben

    June 27, 2010 at 3:42 am

    hi Yestine,i solved a problem in a monitor too (it works with fet k2645,only vivax tv problem not solved

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  18. Big Ben

    June 27, 2010 at 3:42 am

    Thanks a lot mr Yong

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  19. aelmomurilo

    November 29, 2012 at 5:05 am

    gostei das respostas

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