Question about Creative Labs Nomad Jukebox Zen Xtra MP3 Player
Hi MY 40gb Nomad Zen Extra had a problem with the headphones. The part that you plug your headphones into came away from the board. I repaired Solder)this but now my Backlight has stopped working. Does anyone know what I might of done to make it stop working and if so how do I fix it. Just please remember if you can answer this that I am no electronic whizz kid Thanks for reading this Peter
Hi Peter...I'm shameful to admit that I have very little optimism that my suggestion will remedy your issue, but let me begin by sharing my reasoning with you. According to the chronology of events, your backlight only began malfunctioning after your soldering mend. So let's just keep it simple and deduce that the solder you applied may be shorting another connection, or you may have applied too much heat for too long a period, which may have caused some delamination of the board, or perhaps, melted pre-existing solder which in turn ran and caused a short. So, if you understand and agree with my reasoning, and would like to confirm it by process of elimination, here is my pitiful suggestion..... Let's open your player and reverse your fix while simultaneously employing the art of investigation. Before "getting in there", I highly suggest that you have a magnifying glass handy, or a pair of reading glasses with adequate magnification. If possible, I suggest doing this outdoors when there is adequate natural sunlight. If you must do this in artificial lighting, try to avoid fluorescent tubes as your light source, the exception being Compact Fluorescent Bulbs. Begin by using a flat and stable surface, covered with a neatly flattened towel. The purpose of the towel is to prevent any accidentally dropped screws or parts from bouncing into a proverbial haystack which you will then, have to find a needle in. After opening your player, carefully and methodically examine the immediate area that you worked on, while mentally recalling the possible defects that I mentioned in the 2nd paragraph. Do you see any evidence of any of the scenarios? Do you see any, regardless of how slight, discoloration of the board which could indicate delamination? Manipulate the lighting on the board by turning and skewing your view of it, again, looking for signs of possible delamination. If you easily detect what you think might be delamination, let's just call it quits, reassemble your player and celebrate the fact that your player can still perform all of it's primary functions, which were good enough to make you buy it. Unless of course, you bought it for the backlight. If you see no indication of any of the possible defects mentioned, and would like to continue, our next goal is to remove all of the solder that you applied in the smallest increments possible. Begin by visually scrutinizing your solder, until you can pinpoint a specific area that looks like a prime suspect in causing a short and begin there. If your solder cannot be easily manipulated or removed, you will need to purchase a Solder Wick, which, as the name implies, will allow you to absorb and pull away solder as it liquifies. Keep a mental tab of how much heat you are applying, and for what duration, to minimize possible delamination. Once you have your most likely suspected area of conflict cleaned up, minimally, but adequately reassemble your player and power it up to see if your backlight is once again....backlighting. If it does light properly, and you believe that your headphone jack is adequately secured, pack it up and run for the hills while listening to backlit music. However, if your backlight is still defective, repeat the process, starting with your next most likely culprit area. Well, I've given you enough information enabling you to know exactly what my theory and fall-into-place solution is. If it turns out that I have provided the only response to your issue, please don't use that as justification to follow my instructions. However, if you choose to give it a go, re-read my 1st paragraph immediately prior to commencement.....Please update your post with any developments, whether positive or negative so that I may learn from this too....good luck my friend.
Posted on Aug 03, 2007
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