Question about Hitachi 55HDS69 55 in. Plasma Television

1 Answer

Hitachi I dont have that meter?? but what can be??? ysus can't be because I have replaced that board and it didn't work xsus?? power board??? Main Logic Board ??? POWER FILTER BOARD??? DIGITAL PROCESSING HDMI??? Can you help me???

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  • you don't live in boca raton or fort lauderdale area do you???

  • I have replaced the xsus board and my tv start working than after 5 sec the screen come black again

  • Do you think the my xsus board burn out????

  • you don't live in boca raton or fort lauderdale area do you???

  • That tv only have capacitors at the ysus board power board and xsus board.

    I have replace the ysus and nothing happens than my friend exchange the board to me with zero cost with the xsus board.

    I think the I have to buy the power board

  • BUT how about my xsus board??

    You think the board burn out???

  • thanks

    Im gonna try to replace the power board

  • Now even with the new xsus board my tv is doing the samething it just flash the blue light at the front.

    Put old one back samething.

    Thats why Im ask you about the xsus

  • thanks

  • replace power board and xsus and still not working



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  • Hitachi Master
  • 8,617 Answers

Without the correct meters and equipment it can get exspensive replacing boards however it almost has to be located on the power filter or the power board. I would suggest the power board over the power filter.

Posted on May 16, 2008

  • 2 more comments 
  • Sonny Berry
    Sonny Berry May 22, 2008

    The capacitors are going to need to have the ESR checked or you can go broke replacing boards if the Xsus powerd it up for a minute something is forceing protective shutdown. my quess would be a capacitor or leaky diode as a capacitor could be lowering voltage causing shutdown, and a leaky diode could be raising voltage which would also trigger protective shutdown.

  • Sonny Berry
    Sonny Berry May 22, 2008

    That wasmy first response indicating either the power board or the power filter board. I think If you do the power board you should be allright

  • Sonny Berry
    Sonny Berry May 22, 2008

    No i believe you will find that the power board is going into shutdown. The other board would allow the set to operate untill it sensed the shutdown circuit kicking in. once you replace the power board I would think that you will be fine.

  • Sonny Berry
    Sonny Berry May 22, 2008

    The transistor that shuts down the set will have to have time to drain let it sit overnite unplugged then try in the morning to power up the set again. If it doesnt you may have damaged the new board.



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1 Answer

Samsung ps51d550c1k will not turn on

If the red light flashes for a while, with a clicking noise while trying to turn on. It's either the ysus or xsus board, they are both easy to replace, my xsus board has blown twice, last board I bought off ebay £35 lasted 2 years. Just bought another for £16 + free postage.

If you can use a screwdriver & disconnect/connect a few ribbon cables & connectors, you'll save yourself £££s

google or search youtube for video guides, you won't be disappointed ;)

telltale signs are when the tv starts to make a clicking off/on sound while watching tv, without actually turning off, That's the time to look for a spare ysus or xsus board, before it blows. It could last months or weeks but better to be safe.

Takes me 15mins to take the back off, replace the board & put the back back on. & I'm a novice.

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MY 50 inch Hitachi TV wont turn on and the on/off blue light at the bottom of the TV blinks 3 times then pauses and blinks another 3 times. This is non stop. The TV model # is P505601

Unfortunately, this indicates a technical fault with the TV which can only be fixed by a service engineer.
If the light is blue and blinks 3 times, it is indicating a fault with one (or both) of 2 circuit boards inside. They are the XSUS or YSUS boards and will possibly need replacing.
At least knowing this might help you ascertain a quote as too how much the repair will cost.

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I have my tv hitachi model no 55HDS69 i have sound no pictures heplp me thank

There are two boards that could get failed and cause of this problem, these are XSUS and YSUS boards, please replace them to solve tv problem.
Require board is available with

Mar 01, 2011 | Hitachi Televison & Video

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I had a company tell me that my power supply pcb needs replaced and the display voltages readjusted? Can I do this myself? How?

if you buy a new pcb it will allready be set to right display aslong as uv not touched pods on ysus or xsus boards

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very possible the YSUS board is going bad .If YSUS is going bad .I would also replace XSUS board since they are same age..Also whenYSUS is replaced make sure you make pot ajdustments as old YSUS and also with XSUS board

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1 Answer

The picture went out but sound is good

You can check the voltage through the X and Y sustain boards to see which is damaged.

Voltage travels the following direction on these TVs:

Power Supply: 075235-zenith.htm

Then through Y-SUSTAIN: C-p/vizio-sku9501.htm

Bythe way.. This is the MOST POPULAR failing part on these TV's... Abovelink has it for $154.99 and the quality and shipping time isoutstanding. Be careful buying from a used dealer or someone not as bigas Discount-Merchant is on parts. You may get a part that lasts 1/2 thetime. These boards are like DLP TV lamps, they have a limited lifetimeand if you buy from the wrong place, you will have to replace it moreoften and it can damage other components when it pops!

Next Power travels through X-SUSTAIN:

Again.. only $154.99 and this is the 2nd most common failing part on these TV's..


To test which board is bad you need a multimeter... then test for the following:

1.disconnect the power board from the y-sustain board.. Check input intopower board (is voltage coming in from the wall?) Next, test forvoltage going out of the power supply.

2. Next test voltagegoing to the Y-SUSTAIN BOARD by having everything connected except thelink between YSUS and XSUS. Check for voltage going into YSUS (if powersupply is putting out, then ysus shoudl be receiving).. Next, test forhigh voltage comming out of the YSUS... keep in mind, xsus isdisconnected.

If you get power comming out of the YSUS, this means your YSUS is GOOD and your XSUS is BAD....

If you get no power comming out of the YSUS this means that the YSUS isBAD.. in this case you need to replace your YSUS, however, you XSUS canalso fail when your YSUS blows out.

In order to test yourXSUS, you can use a multimeter to test breaking in the transistormodule that has the big Black or Silver heatsink on it. You can test itby using a multimeter and applying it to the bottom pins of the board.

Again, seems to have many of these boards in stock andthey are my lifesaver! The price is VERY LOW compared to anyone else,and the quality is outstanding. 1 year buying these boards from themwithout a single returned customer.

I bought one off of somejimmy guy on ebay and it blew in 1 month. I though i was saving myselfmoney but the customer was back and very upset. Be careful!

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1 Answer

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first thing that you can do is use the Google serch by just typing in lg 50px1d and see if you get any thing close to what you need.

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Auto st-by after 1hour

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