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Sylvania SSL2006 dead, won't turn on. fuse is ok,

Sylvania SSL2006 dead, won't turn on. fuse is ok, don't see any burned parts. Did TV repair in the good old days 60's - 80's
Please help

Larry

Posted by Larry Spivey on

  • Larry Spivey
    Larry Spivey Jul 22, 2012

    Replaced cracked D309 9.1v zener, power caps look good.
    TV Syl SSL2006 is completely dead. Circuit board looks over heated around
    R416/17 & Q402. Don't have print so unable to know what these items ??

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bruno nai

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If there is dc voltage before the switch mode transformer,Check if there is any voltage available after the it.for some models check for an open choke resistor(1.2k,3w) which supplies to the filter capacitors.if resistor is fine and no volage after the chopper,then test the power transistor.u may also remove this transistor and then check if the voltavge will cross the chopper

Posted on Jul 22, 2012

  • Larry Spivey
    Larry Spivey Jul 24, 2012

    Replaced cracked D309 9.1v zener, power caps look good.

  • Larry Spivey
    Larry Spivey Jul 24, 2012

    Circuit board looks over heated around R416/17 Q402. Won't turn on.

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Jacques Marin

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Hi larry
Since you know electronics that will make the explanation simpler;
On your tv model there is a very common problem that you may want to look at;
There is a small board on the right hand side(backlight inverter board),
Look for a shorted D309 , it is a 9.1volts 1watt zener diode.
As i said it is a common problem for your model.
But there is also the power supply;
All lcd tv`s nowadays it seems end up with bad capacitors in the power supply,
You can recognize them by their rounded tops and you`ll find them at the output of the power supply along the 5/12 and 24volts line.
But especially on the 5 volts line.
If your not sure which ones then replace them all (there might be 6 or 7 of them) it won`t hurt and eventually they will go anyway.
Hope this help good luck

Posted on Jan 08, 2010

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