Sunday, March 17, 2013

Fix for Insignia portable HD radio

If you have a NS-HD01 04.00.14 or NS-HD01A with no sound, you may send the radio to me for repair:

http://www.kots.us/index.php?id=services

My two radios have been working daily, 7/24, without a problem since I fixed them last November.

Other NS-HD01 versions are not fixable and the NS-HD02 garbage does not worth of any work. More details here.

38 comments:

  1. Thx Sean, will give it a try and let you know the outcome. Appreciate your willingness to share. Love the radio, hate the silence.

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  2. Sean, two questions. Based on your comments you said when you saw the chip you knew what to do. Do you have experience with this chip? Can you explain functionally what the 1K resistor and wire it doing to the chip and under what conditions? Thx.

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    1. I've used this chip and some other D/A chips. The Insignia engineer did not use this necessary resistor (to cut down cost?). This chip outputs to the headphone jack. Without this resistor, the chip may enter an endless loop of reseting, therefore no audio.

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  3. Sean, interesting. So why wouldn't removing the power stop the endless loop?

    Does it matter how many watts for the resister? I noticed the resisters I saw at Radio Shack were a bit bigger. Choices were 1/4, 1/2 and 1 watt.

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    1. The reset pin needs to be pulled up to.3.3v to not reset. When you remove power, the pin gets zero voltage. Any resistor will do, as long as small enough. Note the photo is misleadingly zoomed, the resistor is shorter than 0.1 inch.

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  4. Thx Sean. I sure have learned a bunch for your blog post. There are many others in the same situation and would benefit from what you have shared.

    What equipment would you recommend and where can one purchase the necessary tools and resistor? I have looked at the chip via a magnifying glass. I suspect you need a hands free magnifying glass, a fine point soldering iron say 15 watts, silver solder and a tiny resistor. Appreciate any guidance you can provide.

    If I decide to take you up on your 20 dollar offer to fix both my NS-HD01 and my NS-HD01a (which is still working at the moment), I do I go about sending you the radios?

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    1. Before you try anything else, first use a wire to short pin 25 to a nearby 3.3v to bring audio back.

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  5. note: sent a request for fix to your posted email yesterday. Thx.

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  6. OK, did some additional research. I am new to this hardware thing (software developer by trade) so I needed to understand the drawing. The resistor in the picture is a surface mount resister. The number on the resister is as follows, first two digits is the ohms and the last digit is the number of zeros to add, thus 1000 ohms or 1K ohm of resistance.

    Not sure about the solder but what I have read is that silver solder is best for surface mount components. Wire is wire but in this case getting a small enough gauge for the wire is important.

    Regarding the soldering iron, it needs to handle the small sizes for the soldering on the board. There are soldering irons with smaller watts and needle points that will help given the small size. I found one at 12 watts http://www.amazon.com/Antex-M-12w-Soldering-Iron/dp/B005ZDJ9Y0/ref=sr_1_5?s=hi&ie=UTF8&qid=1363717325&sr=1-5&keywords=antex+soldering+iron with needle tips http://www.amazon.com/0-012in-Unplated-Needle-Antex-Soldering/dp/B000AS1X2G/ref=sr_1_3?s=hi&ie=UTF8&qid=1363717325&sr=1-3&keywords=antex+soldering+iron

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  7. Hey Sean..

    Thanks in advance.

    How can i get a Pantech Element?

    http://kingoftweaks.blogspot.ca/2013/01/pantech-element-1st-ideal-tablet.html
    Dung Ngo Viet <-------is he legit? Is he around?

    Cheers

    Thanks

    Johnny in Canada

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    1. All I can say is I've bought several unlock codes from him and all were delivered within minutes and worked.

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  8. Sean,
    Thanks for the quick and high quality fix to my Insignia HD radio. I would recommend your fix to anyone.

    Art

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  9. Sean, I just need a 1k resistor right? I don't need any other wire?

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  10. Thank you Sean for providing such a great service. I just received my Insignia portable HD radios from you. It is so nice to be able to use them again. The turn-around time was amazingly fast.

    Colleen E.

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  11. I can appreciate the level of technical expertise in making these radios usable again for people who paid some significant money for them only to have them just up and quit functioning. I have not (yet) had the problems described and addressed here. My problem is that the battery in my NS-HD02 does not hold a charge. Any idea where I can get a replacement?

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    1. You may try buy a cheap radio on eBay and use its battery. I have two that crash often, I keep them for their battery. If you want one or two, I can sell to you for $10/ea shipped.

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    2. OK, will e-mail you about details

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  12. How do you open the case without breaking it?

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    1. Use a thin guitar pick and be very careful.

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  13. Any suggestions on where I could send my NS-HDO1 for repair?

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  14. Thanks, Sean, for the radio repair! I had my HD radio for less than 2 years when the sound stopped. It didn't make much sense to keep on buying a new radio every 1-2 yrs. I had the repaired radio back in one week and it is working perfectly! I highly recommend your repair service. Thanks again, Sarah White

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  15. Thanks SO MUCH for this info. I fixed 3 of them so far

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  17. what is the address so I can mail my NS-HD01?

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  18. What is the mailing address for sending in defective units for repair?

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    1. http://www.kots.us/index.php?id=services

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  20. The no sound happend just recently after owning this radio for 4 1/2 years. I temporarily connected a wire from pin 25 from the chip to another area and it reset the volume back. To make this permanent, I'll most definitely will need your help, since it's too small for me to work on. I'll mail it to mail to you in time. My battery connector also broke a while ago after falling to the ground. I did manage to solder a new connection for the lithium battery, so I still have battery power. Amazing how you figured this chip issue out. That's genius. I wonder how many have been tossed these radios into the landfills over the years.. I also noticed very few of these radios sold on Ebay lately..

    Question, by disabling the reset to the chip, does this cause the battery to use more power?

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    1. No any disabling, just fixing a design flaw made by an idiot and returning the circuit back to what it should have been done in the first place. No any side effect.

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  21. Thanks for providing the fix

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  22. I think Sean Chen must know his stuff as gurus do. I love, love, love my Insignia HD radio and have only owned the NS-HD02 until now. The volume-down button quit working. The rattle inside tells me the mount inside must have collapsed... now it's full throttle only which I remedies with a cord to the headphones which has a volume control. I since bought a lot of three NS-HD01 with NOS. Now I hope Sean is still monitoring this BLOG because from what he says, the HD01 is superior... I will know for sure once I get his helpful expertise in remedying the design flaw. Kudos Sean!

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    1. Only two versions are good: HD01 04.00.14 and HD01A. Other versions are all garbage.

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    2. Are you still repairing these?

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