Seeking pinout for 20 Pin J14 connector on imac G3 motherboard

Greetings I am seeking a pinout for 20 Pin Audio connector (J14 connector) on imac G3 motherboard 820-0980-A
I believe it connects to the iMac Audio/ Video Interconnect Board and contains the power on and power led wires, which is what I am interested in.
Thanks in advance!

I have traced the power on is pins 19 & 20 on the Audio connector, a start, gets me a green LED on the 820-0980-A motherboard.
I only have the motherboard, powersupply, IrDA board, and 50 pin CD drive adapter (no 50 pin cable) so now to see if I can get some kind of display?
Seems like it is possible to adapt the 16 pin video connector to VGA. However I wonder what proper settings for a modern LCD would be?