Question about Hitachi 42 in. Plasma TV

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Blue power light stays on my plasma hitachi tv but no picture

The other day my tv would not power on. the blue light came on, blinked three times, briefly heard audio, no picture, and then went over to the red standby light. i powered off, held power button 10 second, and no improvement. Today, i unplugged the cord for a second on the back of the tv and plugged it back in. now it no longer blinks, but the blue light stays on at all times, and I cannot power off unless i pull the plug. HELP!!!

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  • Hitachi Master
  • 33,359 Answers

Evidently power supply failure.

Posted on Nov 24, 2013

5 Suggested Answers

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Posted on Jan 02, 2017

Slinteriors
  • 8617 Answers

SOURCE: 55hds69 hitachi plasma

I have had some issues with high ESR readings in the capacitors in the scaler circuits in those units. Do you have an ESR meter to check the caps in circuit?

Posted on May 16, 2008

  • 8457 Answers

SOURCE: I have the same problem blue power light blinks 3 times

Ur power board inverter is dead.
U need a new board.

Posted on Aug 20, 2009

  • 8457 Answers

SOURCE: Hitachi Plasma 50 inch H4011 series just went off

Power supply board is dead.Replaced the power supply board,Ur tv will get the power back.Tries Shopjimmy.com,Ebay.com to buy a refurbish power supply board for replacement.

Posted on Feb 21, 2010

Testimonial: "Thanks. It must be pretty easy if a teenage boy can do it. "

lovejoy91
  • 691 Answers

SOURCE: Hitachi Plasma model P50V701 -

(Green Power LED will go Green the Go Off) Brief rise then collapse of the Vs and Va voltages.

This indicates a "Load" on the line.

Pull the CN-64 connector feeding Vs/Va voltages to the X-SUS.

Take an ohmage reading from the Va and Vs lines on each PWB.

This means you have to read the Connector on the Power Supply and the pulled connector going to the X-SUS.

See if there is a low value. Low value indicates a defective PWB.

Normal reading should be infinity. (Using the diode mode on the DV/Voltmeter, there will be a brief charge

time, then infinity.) In other words, it may appear as a low ohm reading, but should rise to infinity or open.

(Also not, if there is a charge on the line, the meter may show a low. You must Pull the CN68 connector and take

a reading again).

The line should now be infinity when reading the Power supply pins for Va and Vs and when reading the

connector going to the X-SUS PWB.)
If a Low is see on the connector, pull the CN32 Connector. (Bottom right hand plug on the Y-SUS PWB)

Posted on Jan 12, 2011

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