So I have fairly intact versions of both of the 17" necks and they are VERY EASY to tell apart - even if you don't know which 17" iMac the neck originally came from. They are also VERY DIFFERENT - so know which one you are using before proceeding. These are the only two part numbers for 17" necks I have been able to find. Other variations or small differences may exist, I can not be certain. Remember, you always have the option of opening up the monitor and looking at the JAE connector. Because they all use the same LCD, the pin number/position will always be the same. I will focus on the differences.
My previous post/17" pinout detailed what I will call:
NECK A: This is part #661-2825 and is the for the 1ghz and 1.25ghz 17" iMac G4.
|DVI pinout A - 1 or 1.25ghz iMac neck
|Inverter Pinout A: 1 or 1.25ghz Neck
So here again is the DVI and Inverter pinouts for Neck A recognizable by:
1) Part #661-2825
2) Comes from a 1 or 1.25ghz 17" iMac G4
3) Has a black/silver JAE 30 pin connector to LCD
4) Has an Orange Wire in the inverter cable
5)??Has the number 620-2305 on the motherboard side of the video cable
NECK B: This is part #661-2716 and is the for the 800mhz 17" iMac G4.
I have peeled back the aluminum foil, but you can see that the JAE connector that connects to the LCD is one where the pins snap into a beige connector and there are no clasps on the side.
Here is the inverter (LCD side). Notice the colors from left to right (Blue, Black, Red, Green, Purple, OFF-WHITE)
So here is the new TMDS to DVI and Inverter pinouts for Neck B recognizable by:1) Part #661-2716
2) Comes from a 800mhz 17" iMac G4
3) Has a beige JAE 30 pin connector to LCD
4) Has an Off-White Wire in the inverter cable
5)??Has the number 620-2122 on the motherboard side of the video cable
|DVI pinout B - 800mhz iMac neck
|Inverter pinout B: 800mhz neck
There are so many differences, there is a Brown cable in one, an Orange in the other. The order of the rest of the wires is completely different. Even the Clock/Data cables are reversed White/Black. While I myself have set up Neck A, a reader of my blog has gotten it working with neck B. Obviously the color of the wires really doesn't matter its what pin they connect to thats important. As there may be a slight difference in what I call "blue vs. purple" etc. Here is a close up of the 2 JAE connectors and the order of their wires (pin 1 position is on the left to pin 30 on the right).
|NECK A: 1 or 1.25ghz 17" iMac