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New Electronics Magazine

By on April 30, 2009

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8 Comments

  1. Altaf

    January 15, 2010 at 7:08 am

    Dear Jestine
    i m repairing crt monitor LG 701E there was power blinking problem i fount that transistor A1273 was bad.then i replaced transistor STB1277 instead of A1273. now monitor LOT giving bursting sound over series Bulb. please help me in this problem. i will thankfull of u
    your student
    Altaf

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  2. admin

    January 16, 2010 at 4:17 am

    HI Altaf,

    Where did you connect the light bulb? Where is this A1273 transistor located?

    Jestine

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  3. Altaf

    January 21, 2010 at 6:48 am

    dear jestine
    i have LG 710E(K) CRT monitor. it goes blank screen after atleast 20 minutes without any reason. i tried ot find the foult but no successed. so please help me and tell me about this fault
    thank dear Jestine

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  4. admin

    January 23, 2010 at 8:14 pm

    HI Altaf,

    When it goes blank, does the high voltage still present?

    Jestine

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  5. Altaf

    February 3, 2010 at 2:32 pm

    Dear jestine
    i have crt monitor LG studio works 454v. there is astonish problem when i increase or ecrease brightness or contrass the screen shows vertical WAVES. i have tried to find the foult but not succeed. please help me and tell me about this foult.
    thanks

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  6. admin

    February 3, 2010 at 4:34 pm

    Hi Altaf,
    Have you check all the e-caps with ESR meter in power supply?

    Jestine

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  7. Altaf

    February 13, 2010 at 6:16 am

    dear jestine
    i have 15" LG studioworks 454v CRT monitor. it has problem that its width is not increasing or decreasing. please tell me that what kind of foult in this monitor
    ur student
    Altaf from pakistan

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  8. admin

    February 13, 2010 at 9:03 am

    HI Altaf,

    Please check the horizontal width area. The circuit is nearby the pincushion transistor. Sometimes dry joints and bad data in eeprom also may cause such problem.

    Jestine

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