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How do I replace the Power/scan board on my Dishnetwork HD34-300 Monitor

The television won't turn on. It tries 3 times and then remains off. In a previous post you mentioned the Power/scan board might need to be replaced. Where do I purchase such a board and is it possible to replace myself? Thanks.

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  • 6 more comments 
  • sharbs63 Sep 20, 2008

    Dishnetwork HD34-300 flat screen television. My Directv guy told be it's an RCA television even though I bought it through Dishnetwork and it has the Dishnetwork logo on it. Thanks.

  • sharbs63 Sep 20, 2008

    There is no RCA model number. What I gave you is all I have.

  • sharbs63 Sep 20, 2008

    I took the back off and on the tube it says Toshiba LR27012. I don't know if that helps or not.

  • sharbs63 Sep 20, 2008

    Here are some picks. I hope they help.















  • sharbs63 Sep 20, 2008

    Is this the component you are talking about?






  • sharbs63 Sep 20, 2008

    You rock!!! Thanks man!!!

  • sharbs63 Sep 22, 2008

    Were you able to locate the part? I can't seem to find a flyback part with the numbers shown. Thanks.

  • jemt05 Mar 23, 2009

    My HD#$-300 power light will come on and go off 3 times before it turns off completely. I have to continue to try to turn the TV on for about 1/2 hour before it finally stays on. I was thinking it was a capacitor but this post mentions a flip back transistor. Does anybody know what the actual problem is before I tear it apart and go poking around?

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  • Flat Panel T... Master
  • 8,617 Answers

Please respond to this same post with your model number and I will assist you with your problem.

Posted on Sep 19, 2008

  • 3 more comments 
  • Sonny Berry
    Sonny Berry Sep 20, 2008

    I would need the RCA model number in order to help you, as the dishnetwork TVs have no service info available at all.

  • Sonny Berry
    Sonny Berry Sep 20, 2008

    I am sorry, but the problem with off brand TVs is that they are almost impossible to service as there isnt any service info available, and its next to impossible to locate parts as most off brand manufacturers purchase X amount of chassis then sell the units, and just replace the set if it malfunctions within the warranty period. Unfortunately the parts are nonexistant unless you can actually determine the correct OEM model number of the chassis that was used. I have been unable to find out any info on dishnetwork Tv models.Is it possible for you to take a picture of the chassis and post it. Perhaps I can identify the chassis for you if you can post a picture of the Chassis.

  • Sonny Berry
    Sonny Berry Sep 20, 2008

    Ok thats the ATC221. Now we can get somewhere. You mentioned that your led power light tried to power up 3 times then go out correct? If thats the case youre only needing to replace the flyback which is a very easy component to replace.its the transformer on the far right side with the large red wire. That will have a paper label on it with numbers. Can you post the number?

  • Sonny Berry
    Sonny Berry Sep 20, 2008

    yes thats it I will cross reference those numbers in the morning and post a link where you can get the replacement and free installation instructions.

  • Sonny Berry
    Sonny Berry Sep 20, 2008

    your welcome. I will send a response in the morning for you.

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I have an akai 21' tv. I cannot program my dish network remote to work with the tv. None of their codes work. Do you have codes I might try


Hi my name is Mike Houston of DISH Network and I see youwant to program you're Akai TV to our DISH Network remote. There are some easysteps to allow setup to your TV and I will send the link, http://www.dishnetwork.com/SupportSection/remote-setup.Please select the receiver you have and it will take you to a help page. I willsend a link for a Power Scan and the power scan will find the remote code foryou; http://www.dishnetwork.com/SupportSection/power-scan-instructions.If you have any questions or concerns please e-mail me at michael.houston@dishnetwork.com.

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The clicking sound is from the main power supply relay being turning on and off, it is driven by hte main board and it gets the power from the standby power supply board.
You need to check the main powwer supply board and the standby power supply board voltages.
Check the resistor in the main power supply board also
Please see my pictures here: http://s807.photobucket.com/albums/yy352/budm/Philips/Philips%2037PF9631D_37/

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
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Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
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Try this link it contains instructions for a "Power Scan" this should get it working if it is compatible.
http://www.dishnetwork.com/SupportSection/power-scan-instructions

Daniel Busa
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1 Answer

I am trying to program my DishNetwork remote to work with my Aventura television


Power scan instructions:

Step 1:
Press and hold the TV mode button until all mode button back lights illuminate,then release.

Step 2:
Press and release the Power button.

Step 3:
Press the Up button once a second while pointing the remote at the desiredequipment. If the code for the equipment comes up, the equipment will poweroff.

Step 4:
Press the pound (#) button. If the code entered is valid for the remote, themode light flashes three times.

After doing the power scan please remember to put the remote back into SATmode.

We hope this helps. Thank you for being a valued DISH Network customer!


Phillip Chang
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I hope that this has been resolved, but if not, here are some simple steps to help you out. The link below will walk you through a power scan. The power scan scans through the codes on the tv until it reaches the correct one.
Power scan:
http://www.dishnetwork.com/SupportSection/power-scan-instructions

Here is another link to the codes for each brand of tv. You will need to follow these steps:
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5. Once all functions work, press the SAT button on your remote, and you are all set
http://tech.dishnetwork.com/departmental_content/techportal/content/tech/remotes/TechRemo5.3Code.shtml


Becki Barned
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After 4 months, I hope this has been resolved, but if not, or if you have any questions, here are some steps. Below are links from the DISH Network website. The first link is to a power scan, where the remote scans through all of the codes on the tv until it reaches the correct one. The second is codes for each brand of tv. If you choose to use the codes, you will need to follow these steps:
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Power scan:
http://www.dishnetwork.com/SupportSection/power-scan-instructions

Codes:
http://tech.dishnetwork.com/departmental_content/techportal/content/tech/remotes/TechRemo5.3Code.shtml


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If you have not gotten the code, or are still having problems, I can help you out. Follow the link below which will walk you through a power scan, which will scan the tv until the correct code is found.
http://www.dishnetwork.com/SupportSection/power-scan-instructions

If you would prefer, the next link has steps for the codes. So instead of a power scan, you can input the 3-digit codes.
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If this has not yet been resolved, here are some simple steps to run through. I provided two links below. The first, is to a power scan, where you can scan through the codes on the tv until you get the right one. The second, is the codes to each brand of tv. If you choose the second option, you will need to follow these steps:
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http://tech.dishnetwork.com/departmental_content/techportal/content/tech/remotes/TechRemo5.3Code.shtml


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If this has not been resolved, I have some information that will help you out. I have enclosed two links, one of which you will find the directions to a power scan, which scans the tv for the correct code for the remote. The other link is for the codes for each particular brand. If you choose to go with the codes, then you will need to follow these simple steps:
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http://www.dishnetwork.com/SupportSection/power-scan-instructions

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Power scan:
http://www.dishnetwork.com/SupportSection/power-scan-instructions

The second, is a list of codes. If you choose to go this route, then you will need to follow these steps:
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