Contacts are numbered 1-11 counterclockwise, looking straight at the female end of the cable or the back of your keyboard, presumably. Index mark between pins 1 & 11.

Pin #	Function in a 900 series cabinet
1	Rotary (brown)
2	Main (if equipped)
3	Aux (if equipped)
4	circuit ground (yellow)
5	control supply common (green)
6	Cabinet on/off (Short to pin 5 to turn on) (blue)
7	fast motor control (violet)
8	slow motor control (gray)
9	n/c
10	n/c
11	+28.5v (white)

Motor speed control table:

motor mode	short pin #5 to:
off	pins #6 only
slow	pins #6 and #8
fast	pins #6 and #7

This is the most dangerous one because there are so many different pin assignments there is almost no standard 9 pin connection.

Pins are numbered counter-clockwise, viewing the rear of the male connector. Index mark between pins 1 & 9.

Pin #	Function in a 900 series cabinet
1	Ground
2	Signal input
3	No Connection
4	Reverb/Aux control. Goes to ground, ground thru a diode, or open.
5	+28V out.
6	Goes to ground for FAST.
7	Goes to ground for SLOW.
8	120/220V in.
9	120/220V in.

Pins are numbered counter-clockwise, viewing the rear of the male connector. Index mark between pins 1 & 6.

Pin #	Function
1	Ground
1	balanced input signal
2	gnd
3	120/220V AC input
4	120/220V AC input
5	310VDC Output (through 10kohm) for control voltage and early Hammond preamps
6	balanced input signal

Bias pins 1 and 6 to 70V for slow speed, gnd for fast. This must be done through an R-C network to develop a .5 to 1 second time constant to prevent switching transients from coupling to the input stage of the amplifier. If you do not understand the above statement, consult with a qualified service technician.

Pins are numbered counter-clockwise, viewing the rear of the male connector. Index mark between pins 1 & 6.

Pin #	Function
1	Ground
2	120/220V AC to relay solenoid
3	120/220V AC input
4	120/220V AC input
5	120/220V AC to relay solenoid
6	unbalanced input signal

Pins are numbered counter-clockwise, viewing the rear of the male connector. Index mark between pins 1 & 6.

Pin #	Function
1	Ground
2	120/220V AC to relay solenoid
3	120/220V AC input
4	120/220V AC input
5	unbalanced secondary channel signal
6	unbalanced input signal

Pins are numbered counter-clockwise, viewing the rear of the male connector. Index mark between pins 1 & 6.

Pin #	Function
1	Speaker
2	120/220V AC to relay solenoid
3	120/220V AC input
4	120/220V AC input
5	120/220V AC to relay solenoid
6	Speaker

Key	Part num	Details
A	514-141153	2.52 inch - 8 ohm
B	514-137316	3 inch- 8 ohm
C	514-043125	6 inch x 9 inch - 8 ohm
D	514-138879	6 inch x 9 inch - 8 ohm
E	514-140431	6 inch x 9 inch - 8 ohm
F	514-031062	6 inch x 9 inch - 16 ohm
G	514-058214	6 inch x 9 inch - 16 ohm
H	514-137610	8 inch - 8 ohm
I	514-130540	10 inch - 4 ohm
J	514-017202	10 inch - 8 ohm
K	514-141069	12 inch - 4 ohm
L	NLA	12 inch - 6 ohm
M	514-137348	12 inch - 8 ohm
N	514-031070	15 inch - 4 ohm
O	514-052308	15 inch - 16 ohm
P	514-140491	Treble Driver (3/4 inch Throat
Q	NLA	5 inch x 7 inch - 16 ohm
R	NLA	Treble Driver
S	514-058214	PN: 514-031062 w/ cover
T	NLA	15 inch - 4 ohm
U	NLA	Treble Driver
V	014-056646	PN: 514-138879 w/ cover
W	014-056941	PN: ? w/ cover
X	NLA	15 inch - 16 ohm Electro Dynamic

Type 'X' can be replaced with a type 'O' with a separate choke of 2580 DCR.