LDM #248: Panavia Tornado Gr.4 Laser Head LRMTS Mk3 - Part 6: head rotation test

This video shows how to control the rotation of the head. The first part shows the teardown and reverse engineering of a servo amplifier which will be used for the servo control loop of the head. At the end the test is performed. 00:00 - Intro 00:15 - Pinout of the synchro-transformer/motors connector 01:35 - Teardown of an AUTOFLUG HSI Amplifier Module 02:54 - Reverse engineering of the amplifier 04:56 - Head rotation test Pinout of the amplifier sub-d connector: pin 1: input #1 (position, R=14K7) pin 2: input ground pin 3: input #2 (generator, R=39K) pin 4: not connected pin 5 or pin 9: (2 diodes common cathode) power supply, for AC power supply pin 6: output, AC coupling, connected to AC motor control winding pin 7: power supply ground pin 8: DC power supply ( 28V) Reference winding os AC motor should be connected to a 400Hz AC voltage (generally 26Vac) with a series capacitor (generally between 0,5 and 1µF)