Question about HP iPAQ HX2110 Pocket PC
Hello experts, Another RX 3715 came to me, another problem. This one staid in a cold environment over the night and next day it begun to manifest the problem. It woun't allow the user to properly allign the screen, it will respond to taps with a certain delay but it woun't pass the "allign screen" setup. I managed to check up the display and it's ok, both digitalizer and connector, I have made a swich to another RX3715 and the problem is still there. Does anyone know what component could cause the problem. A full firmware reflash didn't do the job for this pda. Is there any other method to diagnosticate the motherboard, like running a console program like MTTY to acces the primary memory controller (firmware) in order to make a diagnostic of the motherboard? This problem and the solutions could help other users who have HP HX and RX series PDA's as most QVGA models use the same memory and display controllers. Have the same exact problem on mi iPAQ HX2110: touch screen doesn't recognize touches anymore. Is there anyone that knows a fix for this? Thanks in advance, Davide (email@example.com)
If I understand correctly your problem, the touch screen of your PDA is not working.
Well, this is a common IPAQ failure. When happens, the only options to repair it are:
1. Soft reset of the PDA. If still does not work, then go to next step.
2. Replace the top digitizer glass.
It requires a very skillful person to do it. If you have not experience with fixing electronic devices, then I do suggest you to send it to repair.
Besides that is necessary to open it, you will require a soldering iron, and desolder the digitizer part and remove it from the LCD screen, which if is not done properly with the right tools, it's easy to damage the LCD screen assembly.
Also, if it's not opened right, is possible to damage permanently the mainboard if is bent or warped.
Also, even though there are a lot of cheap digitizer replacement parts on-line (mainly from China), they have a compatibility issue that prevents to use them in the RX3715 (or RX3115) PDAs.
I have nothing against Chinese manufactured parts, but after buy around 10 digitizers in the last couple of years for different Ipaq PDAs, I found out that only 3 worked fine, so I know what I am talking about.
Posted on Jul 24, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
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