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Laser Show Systems - Pinouts

DISCLAIMER: The pinouts shown here were contributed by manufacturers, vendors and individuals. While every effort has been made to insure accuracy, LaserFX.com can not be responsible for any errors or omissions.

 

Cambridge Technology Inc. logo

Cambridge Technology Inc., Series 678XXX Single Scan Amp Board

Pinout for the Cambridge technology 678XXX single axis scan amp board used to drive CTI 6800 series galvos.  This is not an official CTI document, for the latest version, contact mcasey@camtech.com

CTI 678XXX scan amp diagram

J1 - 10 pin Power and Input

Pin Number Signal Name
1 - Drive [-24 VDC]
2 - Drive return [-24 supply ground]
3 Mute
4 Command [input] ground
5 Command [input] +
6 Command [input] -
7 N/C
8 N/C
9 + Drive return [+24V ground]
10 + Drive [+ 24 VDC]

J2 - DB9 Scanner connector

Pin Number Signal Name
1 Motor drive +
2 Motor Shield
3 AGC return
4 Diode Common
5 1A [PD output]
6 Motor drive -
7 PD shield
8 AGC out
9 1B [PD output]

Trimmers

Trimmer Function
R60 Position Detect Linearity [Lin]
R13 Position Detect Scale factor [PSC]
R25 Low Frequency Damping [LED]
R28 Servo Gain [SGA]
R42 High Frequency Damping [HFD]
R69 Position In Offset [IOF]
R70 Position In Scale [ISC]

Test Points

Test Point Function
TP1 Position Signal, VP
TP2 Ground
TP3 Current Monitor
TP4 Motor Voltage , +M
TP5 AGC Out
TP6 Summing Amp Input
TP7 Notch Filter Output

J4 - 4 pin

Pin Number Signal Name
1 Position Out
2 Velocity Out
3 Error Out
4 Ground

 

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