joseluisjazz
Member
- Joined
- Oct 2, 2008
- Messages
- 399
So I "Sherlocked" on this mistery for a while and made some interesting discoveries. Just by observing from the outside. B)
After watching more closely the half-open screen it soon became clear that green is the missing color. Strong reds & blues, no greens. And it got somehow confirmed when I opened the lid veeery slowly (1 mm/s) to the exact point at which the signal is lost, and there the screen flickers on green, and it goes quickly to black.
I took a look to the Pandora hackers manual and saw that the green signal is driven by pins 19-26 from the LCD cable, which has a total of 51 pins. In the picture the connector has only 25+1 visible pins so I suppose there are distributed 26 one face & at 25 the other face of the cable.
So following that lead, on the same side as the green-signal pins, but on the opposite face, we could find the Digital-GND (50-51) pins, Led Backlight (48-49) pins and Touchscreen coordinates(44-47) pins. It all begins to make sense now. So the Backlight signal is the one that's lost when the lid is opened up to certain point. But the touchscreen coordinates are not lost, since the taps are detected no matter how open it is, even when there's no Backlight. So it seems the pins 27-47 and 1-22 are not affected.
My hypothesis is either one side of the cable went loose on the socket, or the cable has a crack on that side. I think it's probably loose and when the screen is opened it goes more out of the socket from that side, and when it is closed it goes in a bit again, but I can not prove it.
Since I don't wanna open it and void my warranty, this is just guesswork. Oh man, I almost wish it came without warranty, so I could take a look now
PS Good, when I was finishing writing this post I received an email response. I'll send it tomorrow to the UK! Crossing fingers!
EDIT: I couldn't wait to tomorrow, so I googled for postal offices in my zone, found one open until 22, drove to it, arrived 5 minutes before closing and sent it Epic ending. The pandora is now in destiny's hands!
After watching more closely the half-open screen it soon became clear that green is the missing color. Strong reds & blues, no greens. And it got somehow confirmed when I opened the lid veeery slowly (1 mm/s) to the exact point at which the signal is lost, and there the screen flickers on green, and it goes quickly to black.
I took a look to the Pandora hackers manual and saw that the green signal is driven by pins 19-26 from the LCD cable, which has a total of 51 pins. In the picture the connector has only 25+1 visible pins so I suppose there are distributed 26 one face & at 25 the other face of the cable.
So following that lead, on the same side as the green-signal pins, but on the opposite face, we could find the Digital-GND (50-51) pins, Led Backlight (48-49) pins and Touchscreen coordinates(44-47) pins. It all begins to make sense now. So the Backlight signal is the one that's lost when the lid is opened up to certain point. But the touchscreen coordinates are not lost, since the taps are detected no matter how open it is, even when there's no Backlight. So it seems the pins 27-47 and 1-22 are not affected.
My hypothesis is either one side of the cable went loose on the socket, or the cable has a crack on that side. I think it's probably loose and when the screen is opened it goes more out of the socket from that side, and when it is closed it goes in a bit again, but I can not prove it.
Since I don't wanna open it and void my warranty, this is just guesswork. Oh man, I almost wish it came without warranty, so I could take a look now
PS Good, when I was finishing writing this post I received an email response. I'll send it tomorrow to the UK! Crossing fingers!
EDIT: I couldn't wait to tomorrow
, so I googled for postal offices in my zone, found one open until 22, drove to it, arrived 5 minutes before closing and sent it Epic ending. The pandora is now in destiny's hands!
