CMO I420B1-16A (27-D012836) backlight inverter master and slave

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  • crushkittykitty
    Member
    • Sep 2015
    • 41
    • usa

    #1

    CMO I420B1-16A (27-D012836) backlight inverter master and slave

    origanlly the backlight would come on and go off in my great ability to repair I hooked up a test light per instructed master side top 6 would only partially light slave side lit test light fine, pulled tv down to bulbs, same bulbs inside only halve lit. seems master inverter at fault tested all transformers all seem fine, pulled top transformer from master double checking test points reinstalled cleaned up all connections noted on back of master center of board dark spot, checked around that area everything on top of board seems fine, resoldered the 0 resistors plugged everything back in turned on tv treated to a spark center of master between the transformers. check shop jimmy they dont have master or slave,
    start checking voltages on the master and slave noted that slave now has 2 blown fuses and the backlight doesnt light at all.
    Found replacements on fleabay can just buy them but I would like to repair the ones I have. More of a hobby then a need the tv itself have the repair guild and schematics but the the inverter boards are not included.
    Does anyone have the schematics for these?
    or can someone push me in the right direction so I dont kill what is left of the boards,.
    I figure I killed the 8 pin mosfits on the slave and blew the fuses will check the mosfits dont have any fuses so I will have to order parts might just order the 8-pins for the slave but that would leave the original issue of the master not lighting the test light except the bottom plug.
    I just thought about something should the test light have one wire going to the master and one going to the slave of same bulb. I think my test is flawed.
    blahhh
    http://assets.shopjimmy.com/media/ca...012836-top.jpg
    are the boards.

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