Messages

1

Cxx0 General discussions / C860 Charging Problem (not Battery)

« on: May 21, 2006, 10:29:46 pm »

I just got my z apart, and the 630mA fuse is blown.  I ordered the fuses from the K.. sg. web site (mentioned on the previous pages), hope they'll arrive in a few weeks.
Anyway, thanks to this topic, there is still hope, that i don't have to send my z to service...
Thanks a lot!
[div align=\"right\"][a href=\"index.php?act=findpost&pid=125549\"][{POST_SNAPBACK}][/a][/div]

Did you order the fuses to Hungary?  Will they actually ship there?  If not, PM me your address.

2

C1000/3x00 Hardware / Sl-c3300

« on: May 11, 2006, 02:30:57 pm »

The Zaurus in the picture is totally what the current Zauruses should look like, though. The widescreen would be great, and a lot better looking than the fat bezel we have now.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=125809\"][{POST_SNAPBACK}][/a][/div]

It was a quick Gimp job to point out what I would like next Zaurus to look like.

3

General Discussion / New Zaurus Sl-c3200

« on: March 08, 2006, 02:51:11 am »

An 800x480 screen would have been nice...

4

C1000/3x00 General discussions / Sl-c3200?

« on: March 07, 2006, 04:30:30 pm »

Not a very exciting update, it should have been built-in bluetooth, wi-fi and ev-do, as well as 800x480 screen, something like this:

5

Cxx0 General discussions / C860 Charging Problem (not Battery)

« on: February 15, 2006, 09:19:19 pm »

To those who PMed me, fuses are in the mail, sorry for the delay.

Edit, Feb 21: Hey, I just mailed another set and I am out of 0.63A fuses (I want to keep a few spares for myself), so I suggest everyone request a bunch of samples from KOA Speer and post here if you are willing to ship them out to other Zaurus users.

6

General Discussion / I've A Colleague Going To Japan

« on: February 15, 2006, 09:07:22 pm »

Just go to Akihabara, there is a web site, sort of like pricewatch, that let's you find the cheapest place to buy electronics in Akihabara or walk just walk around.

I was in Tokyo a few weeks ago, and I bought 2 C3100 for friends, found them for Y575500, which is something like $500, from a place caled PC Select on the 2nd floor or some building. The C1000 was something like $300.

Remember it's 5% higher with a credit card order.

Oh, here's their web site http://pcselect.co.jp/

P.S. I just checked, it's Y33200 for C1000 right now, which according to Google is $283.

7

Cxx0 Hardware / Zaurus Repairal Service ?

« on: February 08, 2006, 03:05:27 pm »

Did you see this thread?

8

Cxx0 General discussions / C860 Charging Problem (not Battery)

« on: January 20, 2006, 10:46:52 am »

Those fuses are much smaller in real life then in those pictures...  I blew both the 2A main and the .63A charging.  I was wondering if I could get a few of those fuses from anyone that has them and would be willing to send, otherwise I'll have to make a sample order.  Edi800, could I see some pics of of the conductive glue repair.  I'm not the greatest solderer, and if it doesn't look too bad, that may be how I repair mine.  Thanks all in advance.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=111702\"][{POST_SNAPBACK}][/a][/div]

Private message me your shipping address.

9

Cxx0 General discussions / C860 Charging Problem (not Battery)

« on: January 17, 2006, 06:33:40 am »

Thanks to everyone involved, in particular to maslovsky for the fuse information and dbowden for the information on where to find the fuses.  Had I been a bit more adventurous or a bit more experienced with this sort of thing, I could have figured it out much sooner, there are no more than 5-6 fuses total on the entire board, testing each would have taken well under an hour.

I requested samples and after a few weeks I assumed they are not coming in, contacted dbowden through private message and he has mailed me 3 of each fuse, on the same day his fuses came in the samples from KOA Speer came in (12 of each).

Taking apart the Zaurus was fairly easy, however, I don't have much experience in soldering, and while desoldering didn't take that long, actually soldering the tiny (1mm x 0.4 mm or so) fuse was pretty difficult for me (you will need a magnifying glass, I was using a small one from a "Swiss"-army knife).

First thing I did was test each fuse mentioned for continuity, which showed that only the 0.63A was bad, so I only needed to replace that.

Also, the "trick" I ended up using, this may be helpful to those who suck at soldering, is to cut a bit of solder with wire cutters and place them on the board, melt each piece of solder in place a bit, then place the fuse on top and melt each solder chunk while softly pushing the fuse down.

Thanks again everyone, I took a bunch of pictures if anyone needs additional reference, and If anyone needs fuses sent to them faster than 3 week via KOA Speer sample order, drop me a note.

This thread should be stickied and moved to the hardware section!

10

Cxx0 General discussions / C860 Charging Problem (not Battery)

« on: June 08, 2005, 12:15:40 pm »

Normal Zaurus:
   Charge off: 0.4V (or something close to that)
   Charge on: 4.2V

I don't know what you were measuring, but battery voltage doesn't drop to 0.4 on a normal zaurus - the battery would have to be completely wrecked to have such a quick loss of charge...
[div align=\"right\"][a href=\"index.php?act=findpost&pid=83335\"][{POST_SNAPBACK}][/a][/div]

... thanks for reading before posting.

I was measuring the charging circuit not the voltage from the battery.

P.S. JapanDirect didn't even bother to reply when I asked them to help me fix the Zaurus (and sent them a link to this thread), you may want to keep that in mind when you consider whom to purchase your next toy from.

11

Cxx0 General discussions / C860 Charging Problem (not Battery)

« on: May 19, 2005, 12:51:49 pm »

Seva did you ever have any luck getting your unit repaired or replaced??
[div align=\"right\"][a href=\"index.php?act=findpost&pid=80550\"][{POST_SNAPBACK}][/a][/div]

No, I've been pretty annoyed by this and haven't sent it back yet.

I'll try today.

12

General Discussion / New HOW-TO=Fixing Non-Charging CX00 Battery

« on: March 24, 2005, 01:14:37 pm »

Oh, as a side note, forcing the charge through D+M menu option "Charge" is apparently a good alternative to charging the battery by directly messing with the wires, at least it helped me enough.

You can also tap on "CHARGE: OFF" in the bottom right.

However, that doesn't actually charge my battery, https://www.oesf.org/forums/index.php?showtopic=11539

13

General Discussion / Battery or recharge circuit problem - C860

« on: March 24, 2005, 01:13:06 pm »

Any updates on the possibly fried charging circuitry, has anyone tried replacing it?

Also, https://www.oesf.org/forums/index.php?showtopic=11539

14

Cxx0 General discussions / non-booting C700

« on: March 24, 2005, 01:06:11 pm »

Sounds good. I was planning on changing the current charger ICs that are in the zaurus though - i've found out which ones, and I think the broken part is probably just an FET. have you had any experience with repairs on the Z?

Totally changing the charge circuit may well prove to be the best idea though. I was however worried about getting it to work nicely with the rest of the Z - for example the charge light couldn't easily be connected using that chip (others available use a pull-down output though so if i looked around i might find a reasonable replacement).

- Gordon
[div align=\"right\"][{POST_SNAPBACK}][/a][/div]

Do you have any updates on this?

Take a look at [a href=\"https://www.oesf.org/forums/index.php?showtopic=11539]C-860 charging problem (not battery)[/url]

15

Cxx0 General discussions / C860 Charging Problem (not Battery)

« on: March 24, 2005, 11:31:26 am »

(This is going to sound like a lot of other posts, but read on for more details)

Recently I got my C-860 back from Sharp via Japan Direct, I wanted them to look at the CF port, which may or may not have had a problem, anyhow everything was working fine in regards to charging before that, but after I got it back I couldn't turn the Zaurus on.

I thought this was my battery, so I ordered a new one, Zaurus turned on.  After the battery discharged it wouldn't charge anymore, that's when I started looking on the forums about other similiar sounding problems.

I know there are a lot of people reporting problems charging, and have often found odd solutions, like flashing the current state of the battery into the D+M Batt Voltage Adjust menu.

However, it seems like I have a hardware issue, I measured voltage across positive and negative terminals on a normal Zaurus C-860 (my friend's) and mine; here's what I got:

Code: [Select]

Normal Zaurus:
    Charge off: 0.4V (or something close to that)
    Charge on: 4.2V

My Zaurus:
    Charge off: 3.0V
    Charge on: 2.5V[/b]

What is going on here? Any suggestions? I don't really want to send it back to Japan, because last time it took 3 months?!

For the record, my new battery seems to be fine, when charged in my friend's Zaurus, I can use it just fine until it's drained.

Thanks for reading, as a bonus here's a picture of two C-860s side by side, click for a larger version:
[img]http://sevatech.com/tmp/zaurusi-thumb.jpg\" border=\"0\" class=\"linked-image\" /]

[span style=\'font-size:8pt;line-height:100%\']P.S. I meant to post this in the hardware sub-forum, mods feel free to move.[/span]