Downunder35m wrote:1. If you can get your hands on a good scanner you can place the circuit board on it and scan it in high resolution.
Gives a better and more detailed result than taking a picture with your cam.
In case you have visible damage to parts I might be able to assist finding a replacement.
2. It is higly unusal for the electronics of the digitiser to die, in fact you're the first case I jeard of!
3. You do know that the connectors are pretty sensitive and if the cable is not inserted 100% correctly closing the safety clip will not make a working connection?
4. When switching panels/digitiser it s advised to disconnect the battery or at least to press the rest button before disconnecting to make sure the standby power is not making a mess with you.
Downunder, first of all thanks very much for following my thread. I'm pretty sure I've exhausted the avenue's of diagnoses available to my level of competence.
1. Unless you can diagnose a Go730 mainboard to determine if my unit has a bad or defective resistor/capacitor/etc, I'm not sure a high-res scan will yield any results. Please correct me if I'm wrong. If you have the know-how to diagnose based on such an image, I will endeavour to get said image.
2. Let me say that at all times during diagnosis I have not separated the digitiser from the LCD at all. I have tested with 3 unique screens, each with their own original digitisers. All three of these 'complete' LCD's were tested successfully with the new Dell.ca Go730 bought recently. So it is no way a digitiser fault.
3. I understand the ribbon cable connector is sensitive, during my diagnosis I have probably no less than 50 times inserted/removed the ribbon cable from the various LCD's I've had into 2 separate Go730 mainboards. Even used compressed air to blow out any debris (if there was any to begin with, all to no avail).
4. I have also pressed that reset too many times to remember, every time before disconnecting the screen ribbon cable. I have not tried to remove battery as yet, might be worthwhile. However I have tried to let the battery drain out a number of times by leaving the unit running with no external power source (but then again I'm not sure if there is an idle timeout preset that kicks in and turns the unit off to discourage accidental discharge).
Maybe I should just shop around for a spare working mainboard? I have also changed the subject.