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Go Back   1src Forums > Sony > Clie TJ-series
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Old 12-05-2003, 11:07 AM   #1
Tokio la Palm Tech-Lab.
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Lightbulb cause of backlight problem

I found that this problem was caused by the hardware.
Because I wrote in Japanese, you may see the following site through the translation engine.

http://tokiolapalm.cool.ne.jp/giken/index.html

This problem depends on that the flexible cable bends to the acute angle in the narrow space of the battery and the metal frame. Therefore the cable which joins a backlight unit and an drive circuit was broken.

Already the cable of Japanese edition TJ25 was modified.
TJ35 the problem occurred to must be exchanged with the corrected cable.
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Old 12-05-2003, 12:36 PM   #2
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Good work that man!

I'm hoping that as my back light is ok after a month it'll stay ok,

but just to be safe I registered for the extended warrany
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Old 12-05-2003, 04:03 PM   #3
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Thank you very much! I figured it must have been a hardware problem. Weird that TJ25's don't get it; or maybe the absence of audio jack hardware gives the cable more room to wiggle, thus they have less backlight problems.
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Old 12-05-2003, 06:05 PM   #4
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I use my backlight all the time, with my hardware setup mod (its called AutoDimmer, which will dim the backlight after a set time to a set level), and I am always listening to music. I have never had any problem with the backlight. I bought my TJ-35 originally for school use (high school isnt the easiest thing) but all the other features were very useful. I use it now to test my old programs, to see if they are compatible with OS 5.2.1 . The handheld is on the charger at night and in my hand all day.
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Old 12-05-2003, 06:41 PM   #5
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Thank You very much for posting that information for us.

David
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Old 12-06-2003, 03:36 AM   #6
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Smile

That's really good news! I'm changed my mind to buy T E(i prefer TJ-35), because "It's a SONY!"
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Old 12-06-2003, 08:56 AM   #7
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Finally....someone from outside SONY has the answer! Good work Tokio. Thanks.. Now that we know the problem, let's see what is SONY going to do about it!

Yannis
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Old 12-06-2003, 09:16 AM   #8
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Has anyone looked at the diagrams? Tokio did a wonderful job of displaying some pretty detailed pictures of the inside of the TJ series and comparing the innards of the 25 and 35. Also has a good diagram of what is actually causing our problem. He really did his homework. Now, if only I can read Japanese. Can anyone translate his web pages or anyone know how? Google won't translate japanese.

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Old 12-06-2003, 09:53 AM   #9
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Rats....If I could read Japanese, I would not be flying airplanes for living...

And I thought the Boeing 767 electrical wiring was complex! In any case, Tokio's diagrams show clearly where the problem is. It does not seem like a difficult fix to me. But, I would not open my unit's inards yet, as this would invalidate the warranty. After the warranty expires I don't mind taking them apart and fixing them myself. I did this few times with my old S-320 (Gosh, I miss that little rascal).

But again: THANKS TOKIO... Great job!

Yannis

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Old 12-06-2003, 10:40 AM   #10
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If you go here:

http://babelfish.altavista.com/

And type in the webpage in the webpage box, then select Japanese-to-English, you'll get a passable Translation.

That being said it will hilarious in many ways but it will still give you an idea of what can be done to fix it.
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Old 12-06-2003, 12:07 PM   #11
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Thanks Daggerlee, the translation is a bit funny but useful. When you look at the diagrams, it somewhat explains why some of the people that had the problem could push on the back of their clie and the backlight would either go off or come back on. Looks like a poor design/design flaw. Also, from the diagrams, you can see that the headphone jack is near the ribon cable that connects to the backlight which would explain why only the tj35 is having the problem and it seems like moreso the users that had recently plugged in their headphones. (looks like I just translated this too )

David
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Old 12-07-2003, 11:43 AM   #12
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so are you saying that pluggin in your headphones will mess it up
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Old 12-07-2003, 01:33 PM   #13
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I just opened the unit that I have here (TJ25) to see if those pictures match and sure enough my problem was exactly like in those pictures. I poked in there to move that little cable around so I could see it and it broke into 2 pieces - looks like it was ready to come unattached at any moment - I just gave it a final jolt. Oh well, now my backlight is completely out and I have voided the warranty... I wonder how much they would charge me for that kind of a repair?
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Old 12-07-2003, 01:38 PM   #14
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dang, sorry to here that alsa, but i think ill leave my probs tot he pros.
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Old 12-07-2003, 01:42 PM   #15
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Aha, at least we know that Tokio is correct and I am the sacrificial lamb

I still have another unit (NX) to work with so I am not really worried about this, but still...

When I opened the unit up and found the little cable that Tokio was talking about on the pictures I could see how the battery was pressing on it, and eventually it would have come unattached on its own (maybe another couple of weeks). That little cable was literally hanging on nothing. I touched it slightly with the little screwdriver I used and it broke right there... No wonder so many people are having problems. This was really easy to break. It's the wrongful placement of the battery that causes the problem in my opinion.
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