Ensoniq SQ-R Synth Repair without a schematic | How to test capacitors

In this video I'll show you some tips to help repair audio equipment without the circuit schematic.
In this video I'll be repairing my Ensoniq SQ-R synth module from 1990.
I'll trace the fault and test and replace the components quickly and cheaply.
The main points:
*How I quickly narrow in on a circuit
*How I test capacitors

Index:
0:00 intro
0:46 The problem
1:21 Inside and tracing
3:27 Transistor Check
4:37 Capacitor Check
5:15 Test with new components
6:00 Checking the capacitors out of the circuit
6:37 More capacitor checks and how to test them
9:51 Final Synth test

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P.s. here’s the Ensoniq SQR schematic if you get stuck :) https://archive.org/details/sm_Servic...