Question about Hitachi UltraVision 55HDS69 55 in. Plasma TV

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Hitachi 55hds69 no video or sound

The blue light ont the front flashes 7 times then turns steady after a few minutes it goes orange. I have a service manual and multi meter. I have checked voltages and I have no voltage on terminals CN64 on the power supply also CN63 is missing voltage from fin #8 wich is a power on from main digigal board also CN68b is missing voltage on pins 1 2 3 4 and 5 I am thing main digital board for starters any thoughts suggestions or Help Thanks Kevin

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6ya6ya
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Posted on Jan 02, 2017

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Basti
  • 1447 Answers

SOURCE: 55hds69 hitachi plasma

First, try the unplug it, wait a few minutes, plug it in trick, several times. If that doesn't work try pressing the power button and slap the back left side of the set several times. Sometimes, this will shock the ballast and/or lamp into working.

Try checking the wires as well if its pinch or not and try to take out all cables from other devices from the back

Posted on May 14, 2008

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jdvillanueva
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SOURCE: i have a hitachi 42hds69

Hi,

May I know if CN63 is the only connector connected to the power supply board before the fuse blew?

Jdvillanueva

Posted on Sep 01, 2011

spr1949
  • 1182 Answers

SOURCE: Power supply board troubleshooting - p50x01au

If you have a service manual, please match the voltages as per that and problems might be in areas where these do not match. But read on what condition these voltages are to be checked, this is usually written in a service manual, i.e, without any signal or feeding some signal etc.

Posted on Aug 06, 2012

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First of all, thank you for posting your question here at Fixya.

I'm assuming here that your TV is Hitachi 55HDS69.

Yes, the digital main board has 5 LED called "knight rider". After "power on" these LED will be turned on in sequence, it may take a few seconds then after the program is loaded without error, all LED will be turned off. All LED should not lit. If some errors occur, it will give an error code through the LED(s).

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