USSR Military Laser RangeFinder To Repair !!!!

[battery.13v]

Hi Everyone ... i want a help in knowing how this thing work (in the circuit level electronically) to know how to repair it myself ... i know that it cost so much but i want to repair it myself ... ;D ... So this is a USSR Military Laser RangeFinder that i found it in the dark market >
So this is my questions :
1- How to Know The Voltage that this will work on it ??? Cause it work on Military Batteries and i don't know how much voltage does this provide
2- I think the Capacitor is Not Working
3- In the images below i want to know what does every circuit or module do ???? ^-^
4- Could i put the laser transmitter in Arduino ??? Or could i make with this parts a new rangefinder but with arduino or raspberry Pi ... This RangeFinder work on the analog system how could i make a new one on digital system with Arduino ???
5- Enyone how know anything about this device : please share with us your experience !!! and Thx !!!

 

[pedropt]

I think that the first thing you should do is to watch ICS reference and google them to know what are their purpose .
You should have a module that does the frequency oscillation .

On this image : https://postimg.org/image/hwjveyjqj/
you have an eprom with some program on it , using an eprom reader you can extract the program and study its function .

To know witch voltage that works you have to analyse the circuit of the power supply if it have any voltage regulators , basically you have to check if the power to ICS there come from the output of the voltage regulators .
Most ICS there are tll , wich work between 3V and 14V max .
However i believe that it wont work without the aditional hardware that must be connected to send data or whatever .
You have there a lot of unconnected plugs .
https://postimg.org/image/44a1x2icr/