SX66 Broken Touch Screen

[bigbluemnm]

Alright... so the other day i take my sx66 out of my pocket, only to see the touch screen cracked... the phone still works, most of the time, and you can still use like half of the screen. So i need to know, how hard is it to actually change out touch screens. Ive heard it is difficult, and would really like to know how to do it.

Thanks

-Greg

[lwesson]

Alright... so the other day i take my sx66 out of my pocket, only to see the touch screen cracked... the phone still works, most of the time, and you can still use like half of the screen. So i need to know, how hard is it to actually change out touch screens. Ive heard it is difficult, and would really like to know how to do it.

Thanks

-Greg

We can repair the system for you. We do not have DIY kits for the TS repair though.

http://www.pocketpctechs.com/main~unit~Siemens_SX-66-293~area~repairs-Full+Service+Repairs~item~XDA-TS03.htm

[bigbluemnm]

wow, wayyyy to expensive... you can almost buy another unit for that... i mean, i can buy the touch screen for ~$40, and do it myself. i heard it requires some soldering, and what else?

[lwesson]

wow, wayyyy to expensive... you can almost buy another unit for that... i mean, i can buy the touch screen for ~$40, and do it myself. i heard it requires some soldering, and what else?

You can do it yourself. We've had people do it before. Some are successful, most end up causing more damage and have to ship it in anyway.

Here are some tips:

First, double-check the new TS. There are few different mfg of the TS. Some that we evaluated have fibers & dirt between the layers of the TS.

Be very careful with the flex cable coming off of the LCD. It runs through the slide mechanism and tears easily. You'll need to remove the LCM assembly from the top cover/slide assembly.

Use a soldering iron to desolder the TS cable from the back of the flex cable of the LCD. Use a xacto knife or something similiar to seperate the TS from the frame of the LCD. Usually the TS will shatter during this process. If you push the blade in too far, you'll scratch the top of the LCD which cannot be repaired. If you get the glue from the seal of the TS onto the LCD, you'll need to use 99.9% alcohol to clean the top of the LCD using a microfibre cloth. Having tweezers handy helps.

When you go to install the TS, start at the top and then slowly lower it onto the frame of the LCD. Do not push it all the way down. You'll probably have several bits of dust and debris that has been attracted to the TS. You'll need to have moisture free air to gently blow out the dust before pressing down and sealing the TS. We actually use grade 5 nitrogen to blow out the area.

When resoldering the cable do not apply too much heat since the mylar of the cable melts easily.

Hopefully with these tips and others on the board, you'll be successful.

[bigbluemnm]

thet doesnt sound hard at all. last night i already took it all apart, and didnt mess up anything. so hopefully i can get a new ts and get it back on without damaging anything. thanks so much for the info.

[nique]

I got something really weird..

I have opened the unit and checked the configuration..

The old TS versus the new TS is totaly opposite?

Old 1 2 3 4

New 4 3 2 1


Pin configuration..

I manage to hook it up but it won't get pass the alignment screen.. is there a way to re-teach it?

Please help..

[lwesson]

I got something really weird..

I have opened the unit and checked the configuration..

The old TS versus the new TS is totaly opposite?

Old 1 2 3 4

New 4 3 2 1


Pin configuration..

I manage to hook it up but it won't get pass the alignment screen.. is there a way to re-teach it?

Please help..

If it will not align, then the pins are hooked up out of order or the TS is defective.

[JDark]

The interesting thing, there are different touchscreens, have different pinouts. The most important thing (from my experience) is to connect pairs properly. So, you have on touchscreen top, bottom (vertical pair), left and right (horizontal pair). If you'll look at touchscreen, you'll see how your cable is wired to glass/film. At first, you definitely need to put pairs properly. vertical to vertical (on board) and horizontal to horizontal. If you'll mix up wires - you'll fail calibration procedure.

By the way: if you'll mix up top and bottom or left and right - touchscreen will work and pass calibration. Of course, calibration values in registry will be hmm... other, than usual, but touchscreen will work.

If you have multimeter, you can easily check your tuuchscreen. Horizontal pair should be 250..400 Ohm, vertical - 300..800 Ohm. If your touchscreen is not tapped, there should be infinity (not connected) resistance between pairs.

[octapc]

Where can you buy replacement touchscreens or housings?

[willpower102]

ebay. search for all the different models and use worlds like broke, dead, fix repair, etc. And if you buy the right touch screen then you don't need to do any soldering. It's a really simple job. The hardest part is the disasembly, but just take your time and for god sakes tape all your screws to a white peice of paper and label them :roll: i can't tell you how many integral screws i've lost doing stuff like this.

[bigbluemnm]

alright, so im getting ready to buy a new TS... the SN of my phone is... HT509D615597. so what TS would i need?

this one...

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=001&item=110024651851&rd=1&sspagename=STRK%3AMEWA%3AIT&rd=1

or this one...

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110004590937&ssPageName=MERC_VI_ReBay_Pr4_PcY_BIN_Stores_IT&refitem=110024651851&itemcount=4&refwidgetloc=active_view_item&usedrule1=CategoryProximity&refwidgettype=cross_promot_widget

Thanks!!