17" Daewoo model:710B (CMC-1710B)

Discussion in 'Electronic Repair' started by Sidney, Apr 9, 2004.

  1. Sidney

    Sidney Guest

    17" Daewoo computer monitor model:710B,chassis:710B,year:Jan
    1999,P/N:507-308-128,CSA file #:LR59636,UL Listed:54K9,FCC ID
    Code:C5F7NFCMC1710B same as 17" Compaq MV700 model:CO1021T.
    When the power button is pressed loud arcing noise is heard and smell
    comes from these two parts which are on fire:

    R939=100 K Ohm,1/6 watt
    R940=100 K Ohm,1/6 watt

    which are the ABL resistors next to the flyback and going to one of
    the flyback pins.Anyone know what could be causing these two parts to
    light up like a camp fire?.Thanks.

    For free computer monitor service manual downloads:

    http://www.geocities.com/monitorss/schematics.html

    Also tons more here:

    http://www.fieni.3x.ro/
    http://www.schema99.d2.cz/monitory/t.htm
    http://rv6llh.rsuh.ru/shema2.htm
    http://www.megadoizer.narod.ru/monitor.htm
    http://www.infocoal.ru/rclub/schemes/monitor/
    http://tibor56.hyperlinx.cz/
    http://www.wimtv.be/forum/index.php?
    http://www.wimtv.be/techniforum/index.php
    http://www.mcu.cz/atm/index.php?direction=0&order=&
    http://www.bastleni.cz/schemata/#monitory
    http://www.bastleni.cz/schemata/
    http://www.kacha.cz/schema.html
    http://www.kruso.narod.ru/poiska.htm (lots of links)
    http://www.radiosvalka.narod.ru/schemes/tv_e.htm
    http://www.rlocman.com.ru/en/
    http://sasna.narod.ru/shemy.html
    http://cxema.ru/VIDEO.htm
    http://www.promelec.ru/schemes_list.html?3
    http://www.promelec.ru/schemes_list.html
    http://www.radiofan.gaw.ru/circuit1/c1.htm
    http://telek16.chat.ru/
    http://televideo.al.ru/
    http://www.telemaster.ru/
    http://www.teleradiocom.ru/homes/tv/
    http://amt.ural.ru/electronics
    http://schematics.chat.ru/aschemes.htm
    http://www.narod.yandex.ru/100.xhtml
    http://www.carsoft.ru/avtorepair/caraudio.html
    http://www.geocities.com/bucovalov

    If you techs need help in finding any free service manuals just ask
    me.

    Sidney
    Dartmouth,Nova Scotia
    Canada
    http://disc.server.com/Indices/211975.html
     
    Sidney, Apr 9, 2004
    #1
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  2. On 9 Apr 2004 14:21:15 -0700, (Sidney) wrote:

    >17" Daewoo computer monitor model:710B,chassis:710B,year:Jan
    >1999,P/N:507-308-128,CSA file #:LR59636,UL Listed:54K9,FCC ID
    >Code:C5F7NFCMC1710B same as 17" Compaq MV700 model:CO1021T.
    >When the power button is pressed loud arcing noise is heard and smell
    >comes from these two parts which are on fire:
    >
    >R939=100 K Ohm,1/6 watt
    >R940=100 K Ohm,1/6 watt


    The only monitor I saw, during my limited experience, who
    demonstrated excessive power on that part of its interiors had a
    defective flyback/HVdiode/s.
    You might, however, try to proove that C267 is still ok, though
    I doubt that 12V DC would ever cause fireworks with 100k resistors.
    Did you measure the resistance between the crt-anode-connector
    and ground?
    Once you replaced the flyback, be sure to check all other parts
    in the ABL-circuitry for damage by overvoltage.

    My heartfelt consolations to having a 710 on your bench:
    These devices imho are not manufactured to be repaired :).

    The board sits within a metallic tub, which is hell to dismantle.
    I did not figure out yet, how one could ever do any measurement
    during operation, because once you have stripped everything
    to gain access, all parts are flying around loosely on the bench.

    >If you techs need help in finding any free service manuals just ask
    >me.


    You wouldn't happen to know where to find a Belinea 108015
    schematics :)?

    Crossing my thumbs for Your 710,
    H.
     
    Heinz Schmitz, Apr 10, 2004
    #2
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  3. Sidney

    Rono Guest

    With the Daewoo 710 B 17" monitor that has
    the ABL resistor burning, the flyback is bad for
    sure! There are two different types of flybacks!
    Not really worth repairing! Ron.


    "Sidney" <> wrote in message
    news:...
    > 17" Daewoo computer monitor model:710B,chassis:710B,year:Jan
    > 1999,P/N:507-308-128,CSA file #:LR59636,UL Listed:54K9,FCC ID
    > Code:C5F7NFCMC1710B same as 17" Compaq MV700 model:CO1021T.
    > When the power button is pressed loud arcing noise is heard and smell
    > comes from these two parts which are on fire:
    >
    > R939=100 K Ohm,1/6 watt
    > R940=100 K Ohm,1/6 watt
    >
    > which are the ABL resistors next to the flyback and going to one of
    > the flyback pins.Anyone know what could be causing these two parts to
    > light up like a camp fire?.Thanks.
    >
    > For free computer monitor service manual downloads:
    >
    > http://www.geocities.com/monitorss/schematics.html
    >
    > Also tons more here:
    >
    > http://www.fieni.3x.ro/
    > http://www.schema99.d2.cz/monitory/t.htm
    > http://rv6llh.rsuh.ru/shema2.htm
    > http://www.megadoizer.narod.ru/monitor.htm
    > http://www.infocoal.ru/rclub/schemes/monitor/
    > http://tibor56.hyperlinx.cz/
    > http://www.wimtv.be/forum/index.php?
    > http://www.wimtv.be/techniforum/index.php
    > http://www.mcu.cz/atm/index.php?direction=0&order=&
    > http://www.bastleni.cz/schemata/#monitory
    > http://www.bastleni.cz/schemata/
    > http://www.kacha.cz/schema.html
    > http://www.kruso.narod.ru/poiska.htm (lots of links)
    > http://www.radiosvalka.narod.ru/schemes/tv_e.htm
    > http://www.rlocman.com.ru/en/
    > http://sasna.narod.ru/shemy.html
    > http://cxema.ru/VIDEO.htm
    > http://www.promelec.ru/schemes_list.html?3
    > http://www.promelec.ru/schemes_list.html
    > http://www.radiofan.gaw.ru/circuit1/c1.htm
    > http://telek16.chat.ru/
    > http://televideo.al.ru/
    > http://www.telemaster.ru/
    > http://www.teleradiocom.ru/homes/tv/
    > http://amt.ural.ru/electronics
    > http://schematics.chat.ru/aschemes.htm
    > http://www.narod.yandex.ru/100.xhtml
    > http://www.carsoft.ru/avtorepair/caraudio.html
    > http://www.geocities.com/bucovalov
    >
    > If you techs need help in finding any free service manuals just ask
    > me.
    >
    > Sidney
    > Dartmouth,Nova Scotia
    > Canada
    > http://disc.server.com/Indices/211975.html
     
    Rono, Apr 12, 2004
    #3
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