Question about SanDisk SDMX1 MP3 Player

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Opening Case for Repair, Defective Head Phone Port

The headphone port on my SDMX1 appears defective. It works intermitently on the left side only when the plug is at a certain angle and tilted that way. It does the same thing with new head phones. It has been suggested on this board that it can be repaired by resoldering. I can do this and other possible repairs to the metal contacts, but I can't figure out how to open the case. The only instructions on this board: "remove the battery, slide the plate down, and pop open the case" aren't good enough. What plate? Where does the case pop open? Please give me very specific instructions. With a $50 replacement cost I have very little to lose trying this repair.

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Re: Opening Case for Repair, Defective Head Phone Port

I had the same problem with my SanDisk SDMX1 player. After you remove the battery you can slide down the two plastic endcaps of the MP3 player shell (one end has the headphones and microphone and the other end has the usb input). After you slide both of them off the player can be pulled apart into the two peices of the outer shell and the internal "guts." The spot to resolder was hard to get to with a conventional soldering iron. Since I didn't have one I just heated up a paper clip tip on the stove to red hot and pressed it to the area that needed soldering and rubbed on the solder. My MP3 player now works fine (I was amazed it worked) If you need more detail please ask.

Posted on Nov 24, 2006

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If you've tried several different pairs of headphones and have encountered the same problem with every pair, you could possibly be looking at a defective headphone jack. In some cases when headphones are unable to make a secure connection within the jack, they may only receive an audio signal through one of the two speakers.

Unfortunately, this means that you may want to seek repairs on your iPod at this time. If you are still covered under the manufacturer's warranty, I would strongly suggest contacting Apple first for more information or further assistance. Many manufacturers may be able to provide faster solutions than third-party service facilities for problems with their products, but remember that it may be necessary to ship your iPod out for repairs.

Additionally, please keep in mind that you may always bring your iPod to your local Best Buy™ store for service. Geek Squad® agents are able to provide support for most products we sell, and can even honor existing factory warranties for products that were purchased through other retailers.

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I hope I can help you since so much time has passed. This is a rather common problem with the SDMX1 and that is because the headphone jack was installed with too little solder. Here is what you do.
1. Dismantle the player by removing 3 screws ( 2 at one end and 1 at the other).
2.Carefully pry the end caps away.they should pop off.
3.lift the upper half of the case from the joystick end gently.
4.lift the entire circuitboard out. watch where the battery terminals are.
5.look at the headphone jack where it is installed on the smaller circuitboard.
6.on both left and right sides of the jack down on the circuitboard you will see 2 solder connections.
7.these are for the left and right channels.
8.if you look carefully (you might need a magnifying glass), you will probably see a very small break in the connection.
9.using a pointed soldering iron (no soldering gun here!), simply resolder BOTH connections using a very small amount to solder. This will most likely solve your problem.
10.put everything back together and it's as good as new. VERY EASY.

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