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TV is plugged in wall. I turned it on this morning and it didn't do anything. We haven't had bad weather or any power outages. I have tried leaving it unplugged, plugging into another outlet, and unplugging from back of tv, but no luck. Could it be the power supply cord? This tv was a wedding gift and only used 1 and 1/2 years. The manufacture date is May 2008, model 32CV51OU, CHASSIS No. TAC0814, Serial No. AM407025781. If it is something simple, can I do it myself? I have some electrical knowledge, but limited. Thank you. Johanna

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  • jlbfast Sep 29, 2010

    Thanks, this did help and I think it is the PSU. I will have to take it in, but at least I know what I am looking at in terms of repair. Thanks for the prompt attention.

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Hi Johanna.

If the TV is completely dead , then it is usually either power cord, power outlet or PSU. Other faults are quite unlikely to cause no power.

Start checking the fuse in the power plug if the power cord is fused (eg. in UK the power cord is fused). In that case the problem is likely the fuse.

Test the wall plug using a different appliance.

The rest will require technical training. The power cord is tested reading Ohms between each prong and its respective soldering joint on the PSU board.

The PSU is tested reading Ohms and volts in different points, there is also a diode in proximity of the AC joint that must be tested.

If the TV is completely dead and power cord is OK, then you can risk replacing PSU, but there is always a little chance that problem is other (digital board, even if very uncommonly can cause no power), lose connector etc).

If the TV is completely off, check also if there is a main switch at the back of the TV, some of this Toshiba have a main on off switch at the back or on one side.

If the TV is in standby, then things are much different. In that case the problem has been detected by the main controller board inside the TV, and TV has been forced to stand by. In that case the problem can be anything and TV must be tested thoroughly.

Check the power cord, if that is OK, then PSU will probably need replacement. Price of the part is $80, labor may vary. I suggest calling Your local Toshiba service number, the number is listed on the TV manual. Discuss with them the repair or ask their price for the replacement PSU. The TV is surely worth repairing, and cost is probably less than you are expecting.

Here replacement parts: 32CV510U.

Posted on Sep 28, 2010

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