Question about Insignia 32" 720p Flat-Panel LCD HDTV

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Will not turn on, red light as off, when I push power the red light goes off but

I was given a insignia 32 inch tv, just out of warranty, I am sure it is the power supply and I need help. I have great soldering skills and can follow instructions. HELP. I have replaced almost all components on borad, except the large capacitor, I have yet to get the 24 volts. If anyone has a any info that can help?

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  • David Johnson
    David Johnson Jan 12, 2009

    Jaime867, I will double check those when i get a chance to work on it, I was hoping someone might actually have a schematic of the switching power suplly, that would be very helpful. I know for sure the primary transistor and the zener going to it were blown, I have replaced them and am getting 60 to 82 dc volts past the bridge.



    Thanks

  • David Johnson
    David Johnson Jan 13, 2009

    I actually checked the fuses and they are good, I think the regulator is bad, but I sure wish I had a schematic. :)

  • David Johnson
    David Johnson Jan 31, 2009

    Hey I appreciate your help, but I really could use more info, like a schematic

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Look for 2 pico fuses in the secondary section of the power supply. I'm sure one of them is blown, that is why the 24 volts are missing.
I will let you know the locations later when I get home.
Good Luck.

Posted on Jan 12, 2009

  • Jaime Hernandez Feb 07, 2009

    I do not have any schematics for this brand. If you are only getting 60 to 82 volts after the bridge rectifier; check all the associated parts before the bridge or the bridge itself can be defective. You should be getting around 165VDC after the bridge.

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I have a 32 inch insigna tv when pwer is on the red light is on when i try to turn tv on the blue light comes on then flicks off and then the red light blinks
hope its a fuse but think it my be the start up cap ..any help ??

Posted on Feb 25, 2010

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