Question about Apex Digital GB4308 43" Rear Projection EDTV-Ready Television

1 Answer

Random Blue Lines

I have much the same problem as another person did on this page. 1. When the T.V> is plugged in it come on automatically. 2. There are blue lines racing all over the screen (like x'sfrom one corner to the other) looks like the old Vsync. 3. No volume / menu / video select will change but still blue lines everywhere other than one setting. I have pulled out the power supply board and saw the 3300 uF capacitor mentioned in the other post but was not sure that it was bad / not leaking. not sure where the pico fuse is exactly as i have no diagram and not much exp working with TV's. I found that the power supply was available from www.bestbuy.com for 69$ but wanted some opinions on this before i spend money i dont have to spend. Do you think replacing the power supply will fix this or have you ever seen this before? Thanks in advance. sorrowfull APEX T.V. owner...

Posted by Anonymous on

  • Anonymous Aug 22, 2006

    O.K. The voltages are listed there on the board. I will measure them tonight and if any of them is off then I guess without a doubt it should be the PS. I also found a circuit diagram of it as well. I will let you know what I find.

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Anonymous

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You should'nt replace anything untill you get a multimeter and measure the voltages on the Power supply PCB. Call Apex in your owners manual and see if they will supply a service manual so you know what the voltages are suppose to be. Or that manuel is avail as a download at http://www.servicemanuals.net/ for 15.00 bucks! Then you will get a better idea on what needs to be done , instead of shotgunning the repair. Good Luck

Posted on Aug 22, 2006

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4-Vehicle Speed Sensor open or shorted - No signal from speedometer.
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31 Automatic transmission B signal
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41 Primary oxygen sensor heater
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58 TDC sensor #2
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