Technical information

AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN, EL PASO, TEXAS 79936 • [phone] • FAX [phone]
www.msdignition.com email: [e-mail]
88
SHIFT LIGHT PN 7552 TO
MSD RPM ACTIVATED SWITCH
IGNITION
TM
Multiple
Spark
Discharge
BLACK
RED
RED
ORANGE
HEAVY RED
HEAVY BLACK
TO BATTERY
TO BATTERY
MAGNETIC
PICKUP
WHITE
TO POINTS
OR AMPLIFIER
WHITE
GRAY
PN 8950
ON OFF
RPM
ACTIVATED
SWITCH
AUTOTRONIC CONTROLS CORPORATION
1490 HENRY BRENNAN DR., EL PASO, TX. 79936
BLACK
NOT USED
12 VOLTS
TO GROUND
TACH
OUTPUT
RPM
SWITCH
PN 8950
YELLOW
YELLOW
PN 7552
SHIFT LIGHT
+
+
IGNITION
TM
DIGITAL-7
Programmable
12 VOLTS
PN 7552
SHIFT LIGHT
PROGRAMMABLE
MSD IGNITION
OR CONTROL
PN 7530 ellow
PN 6562 - Orange/Yellow
PN 6563 Orange/Yellow
PN 8977 Orange/Yellow
PN 8979 Orange/Yellow
PN 6212 Has a matching two pin connector with
a Red/Green wire and an Orange/Yellow
- Y
-
-
-
-
ACTIVATION WIRES
RED
YELLOW
YELLOW
SHIFT LIGHT PN 7552
The MSD Shift Light, PN 7552, features a bright LED that will alert you to shift at an rpm point. The Shift Light
requires a 12 volt source (maximum of 18 volts) and ground. It is activated when a ground is supplied to
complete the circuit. There is no polarity to the Light’s two Yellow wires. This LED system is not sensitive to
polarity, unlike other LED circuits.