LDM

This video shows the analysis and reverse engineering of an electronic assembly which was supposed to be inside a Ukrainian "Stugna-P" missile launcher.
One board contains an Atmel ATMEGA168 micro-controller which is connected to a MEMS rate gyroscope and one MEMS accelerometer. The gyroscope is soldered on a small pcb which is mounted on a small mechanical assembly. The angle of the gyroscope can be adjusted using two screws.
Another board permits the servo control of the position of something linked to a brushless motor.

00:00 - Intro
02:04 - Gyro and accelerometer processing board
04:45 - Interface / DSP / CPU board
03:36 - Brushless motor servocontrol
05:39 - Reverse engineering: MEMS Gyro assembly
06:04 - MEMS Accelerometer
06:28 - Microcontroller Atmega168
07:12 - Ribbon cable interface
08:04 - Servo control board overview
08:49 - MC33035 Brushless DC motor controller
10:15 - DAC circuits
11:27 - Summing amplifier and phase correction
12:47 - Absolute value circuit