Proview rx-326 model 3200 lcd tv, has sound, but no picture. . . When powered up the screen flicks on for a split second . . . Is this most likely a micro-fuse on the backlight inverter board? or is it the actual light source? Should I replace the entire inverter board? It goes for about $60. Any help here would be greatly appreciated and thanks . . . . I listed all models with this inverter board in case there are any parallel issues for the models other than my ProView 3200.

SOURCE: proview rx 326 model 3200 tv sound but no picture

If the sound is working, I doubt the power supply is at fault. You can check with a simple voltmeter - red is positive, black negative - there should be 24VDC. There is an on-board regulator to drop the voltage for the CPU, etc, . THere is a green LED on the main board, so even if you don't have a Voltmeter, there is a visual indication that the power supply is somewhat functional.

I found a poor connection from the 24V power supply over to the inverter boards. I re-crimped the IDC connectors to the 24V supply and all was happy-town.

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it's your control board.......Cost as much as a new TV

SOURCE: screen goes dark after few minutes

check your LCD inverter maybe there is loss connection or some parts damage from inverter.

SOURCE: LCD tv powers on, no picture with sound

The problem is not with the inverter circuit. If that was the problem, you would not see the polaroid screen either. The problem is within the video path of the set. This is not a homeowner repair as the ICs involved here are surface mounted and require specialized equipment to replace. You should request an estimate from a local servicer ($50 or so) and report the results here. We can then guide you through the actual replacement of the correct board(s).

Please keep us posted,

Dan

SOURCE: polaroid LCD TV Model 3200 - Will not turn on

you have a power supply problem.. I have fixed serveral tvs with this problem. normally you have to replace busted capacitors in the power supply board.