I am running headless Titanium Powerbook 800MHz. I have got a bare broken logic board off eBay. Somebody spilled scented vodka in it and must have been using it until corrosion broke few power traces. I have found (duh!) and repaired the traces and now run it with external screen, firewire drive and Dell laptop 20V power supply. Had to bolt small Celeron heatsink on G4. Works fine! In fact I am writing this from it.
However I want to make it think that its screen lid is closed so that I don't have to use mirror mode as it appears as a letterbox format on external display with max resolution of 1280x854. Again, I don't want mirrored mode, I want full external display with the "lid" closed.
Where is the close lid sensor located? I assume it will be a reed sensor or just a microswitch. Is it inside the lid itslef and wired via the big connector together with LVD signals from the screen?
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Well learned fact:
If you ever spill anything into any electronics, NEVER LEAVE it that way even if it seems to work fine.
Take it fully apart and wash PCBs under warm tap water. Yes, just wash it under water. That is part of the manufacturing process in fact.
Leave it dry or better use vacuum cleaner to remove visible water and dry it for a day to be safe.
Tea, soft drinks, coffee, salt water, juice, etc will ruin electronics beyond repair if left to corrode inside. Notebooks are specifically bad as they stay under voltage from the battery 24x7, day and night. I have seen 5 laptops killed that way so far. They all worked fine for some time immediately after an incident.
This is Titanium Powerbook G4 800MHz DVI model.
Here is the picture: http://www.applefritter.com/node/7382
The micro-reedswitch is part of the trackpad assembly.
The magnet is taped to the back of the LCD. Looking at the back of the LCD with the top edge up, the magnet location relative to the upper LH corner:
400 and 500 - right 4 3/4" and down 1 1/4"
550 and later - right 7 3/4" and down 2 3/4"
dan k
Thanks a lot, Dan! I would expect magnet to be on the edge, not behind the screen!
Could please somebody trace it? If not I will just have to trial and error its connector - small square push-in connector under RAM slot... Must be activated by grounding one of the pins.
Just glue a little bit of magnet to it?
I would if I had anything else apart from bare logic board... I don't want to buy trackpad module just for that!
I have found the sensor line!
http://www.applefritter.com/node/7393
Now TiBook totally forgot that it had internal screen and I can work at full native external monitor resolution (e.g. 1280x1024). It also shows all the boot screens, Open Firmware, option boot, etc.
Perfect!
Thanks all for help and especially dan k for pushing me in the right direction!
Leo