Question about Toshiba Televison & Video

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I have a Toshiba DVD/VCR, Model D-VR35-S-TB (220-240 V), purchased November 2006. On 21 May 2009, there was a scheduled 6-hour mains power outage for maintenance of a local substation. During the outage, the recorder was on standby. When power was restored, the recorder was dead - no response to the ON/STANDBY button - nothing on the display. The power-cord fuse and the internal mains fuse are intact. There are no problems with other digital equipment in the house (in Croydon UK). Can you please suggest where the problem could be - and can it be fixed? Thanks.

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  • male_johnc Jun 19, 2009

    Yes, I appreciate that there could have been a power surge (presumably an increase in voltage). I was hoping that you could identify which bit of the electronics would be most vulnerable and possibly repairable. Is it likely, for example to be the internal power unit? Nothing mechanical is working, including the cooling fan.

    If I have an expert opinion on this, it will help me to ask the power company for compensation.

    Thanks if you can help.


  • male_johnc Jun 25, 2009

    Thanks for that. I've had a good look inside and there's no sign of any damage. Everything looks perfect and pristine. But I probed about with a multimeter and found several points on the circuit boards where the AC reading was about 3 Volts and the DC reading about 1 Volt (relative to the chassis) and in both cases there was about a 10 percent fluctuation on the reading with a frequency of about 3 Hz.
    Is this a useful clue?


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There is a possibility that a sudden surge in voltage can cause a damage to the electrical circuit, If the damage is caused inspite of the device having a mechanism to handle this sudden surge (eg SMPS) then you can surely claim the compensation as the voltage regulator mechanism itself failed to check the increase in voltage.

Posted on Jun 25, 2009

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Look for any capacitors that are puffy. Normal Capacitors have a flat silver top on it. Capacitors that go bad normally look puffy (pregnant) and normally would have a silver top that is not flat. You may find a bunch of these depending on how strong the power surge is.

Also you may find scorch marks if the board took a direct hit by lightning, it will be black marks and the chips will look burnt like a bad piece of wood.


Posted on Jun 20, 2009

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Yes the power surge fried the electronics. See this kind of post on a regular basis.

Posted on Jun 19, 2009

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