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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.

Tropel single channel scan amp card

Click on the diagram to see a larger version

Card edge connector pinout and controls on the Tropel single channel scan amp. This amp is a 'clone' of the GS amplifier and is found in the used/surplus market. This is NOT an official Tropel document - for the latest info, contact Tropel directly.

Card edge connector

Tropel Amp Pinouts (Revision B - 44 pin edge card connector).

Letters go from Z to A from left to right with the component side UP and the edge connector toward you.
Numbers go from 1 to 22 from left to right with the component side DOWN and the edge connector toward you.

Pins not listed can be presumed to have no connection.

Pin Number	Signal description
A, B and Z	Power ground
3	Position Sensor minus (-)
4	Position Sensor plus (+)
8	Position Sensor - Ground
6	Position Sensor Power
18	Signal Input
N	External Offset Input (leave open if not used)
M	Servo error output for testing (oscilloscope tuning)
5	Position error output for testing (oscilloscope tuning)
17	Velocity error output for testing (oscilloscope tuning)
11	Galvo coil Output (high side or positive)
L	Galvo coil Return (low side or negative)
A	+20 VDC Power Input
20	-20 VDC Power Input

NOTES

1/ Connect Galvo AGC lead to position sensor ground. Note on some cards position sensor ground is not connected, connect instead to normal ground.

2/ Fuse one and fuse two are 2A long AGC type.

CONTROLS

Trimmer controls, going from edge of card towards heatsink (L to R) viewed from the component side.

1	Damping control
2	Gain control (input attenuation - image size control)
3	Offset control
4	Servo control

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