Pioneer TX-720 - AM/FM Stereo Tuner Troubleshooting

Troubleshooting of the Pioneer TX-720 Synthesized Stereo Tuner.
Note: If you are not able to completely recreate a failure, it can be very hard to figure out the root cause with certainty. In this video a qualified guess was made and acted upon, based on the initial measurements.
00:00 Introduction
00:18 Disassembly
01:07 Side Note: Nice Schematic Feature
01:45 Troubleshooting
03:58 Preventive Repair
04:47 Testing
05:52 Conclusion
06:33 Reassembly
07:58 Demonstration

[@Drakir91]

7:35 The pain...

[@robertdavis5714]

Enjoyed your EQ test vibration, have lived through 2 (close to epicenter) and that was pretty damn close.