Uploaded November 2025 | Updated September 2026, 2 weeks ago
Electronics repair, vintage keyboard restoration, and power supply troubleshooting come together in this step-by-step revival of a Yamaha synth found in a Minnesota puddle 18 years ago. Watch as I rebuild a destroyed PSU, track down failing regulators, fix broken traces, replace capacitors, and restore this classic keyboard back to life.
In this video you’ll see:
✔ Power supply repair & diagnostics
✔ How bad regulators behave under load
✔ Restoring smashed PCB sections
✔ Recapping, regulator replacement & live voltage tests
✔ Full Yamaha keyboard revival with sound test
If you enjoy electronics repair, retro tech resurrection, or satisfying “before and after” saves — this one’s for you!
Chapters:
00:00 Vintage Yamaha Keyboard Street Find
00:31 Assessing the Smashed Power Supply
01:01 Opening and Inspecting the PSU Damage
01:52 Rebuilding the Broken PCB Sections
02:40 Repairing Traces & Power Connections
03:26 Cleaning the Board and Fixing Loose Components
04:06 Installing a Period-Correct Mains Cord
04:32 First Voltage Test: +12V, −12V, 5V
05:03 Discovering the 5V Fault
05:20 Replacing the 7805 Regulator
06:17 Wiring Up the Power Outputs
06:26 First Reinstall Test in Keyboard
07:06 Suspecting Bad Capacitors
07:31 Replacing Electrolytic Capacitors
08:00 Voltage Drop Under Load Explained
08:30 Using Arcade PSU Regulators for Repair
09:52 Installing New Regulators
10:26 Full System Reboot Test
11:30 Audio Output Test & Final Fix
12:08 Keyboard Running Successfully After 15 Minutes
Enjoy my Playlists -
Wireless Electricity: youtube.com/watch?v=yYoYyuR1KuI&list=PLIhGrBMUdssWpFSLW1hznwNqXWpCxhDRQ
Electronics Projects: youtube.com/watch?v=F4nfaYkGvQI&list=PLIhGrBMUdssWLQWtW4dWWGgh25XG3HXek
Solar Projects: youtube.com/watch?v=nmKfxI4MTTs&list=PLIhGrBMUdssXu9Pmduvopm02_7IMz8d3M
Reviews: youtube.com/watch?v=8jAJysXXsw8&list=PLIhGrBMUdssUYzRgA1mrp18zwpTtClmov
💼 Business and reviews email:
youtube.scoop273@passinbox.com
#electronicsrepair #vintagetech #keyboardrepair #synthrepair #restoration #retrotech #repairtutorial #fixit #electronicsdiy #psurepair #vintageelectronics #righttorepair #techtok #repaircommunity
Electronics repair, vintage keyboard restoration, and power supply troubleshooting come together in this step-by-step revival of a Yamaha synth found in a Minnesota puddle 18 years ago. Watch as I rebuild a destroyed PSU, track down failing regulators, fix broken traces, replace capacitors, and restore this classic keyboard back to life.
In this video you’ll see:
✔ Power supply repair & diagnostics
✔ How bad regulators behave under load
✔ Restoring smashed PCB sections
✔ Recapping, regulator replacement & live voltage tests
✔ Full Yamaha keyboard revival with sound test
If you enjoy electronics repair, retro tech resurrection, or satisfying “before and after” saves — this one’s for you!
Chapters:
00:00 Vintage Yamaha Keyboard Street Find
00:31 Assessing the Smashed Power Supply
01:01 Opening and Inspecting the PSU Damage
01:52 Rebuilding the Broken PCB Sections
02:40 Repairing Traces & Power Connections
03:26 Cleaning the Board and Fixing Loose Components
04:06 Installing a Period-Correct Mains Cord
04:32 First Voltage Test: +12V, −12V, 5V
05:03 Discovering the 5V Fault
05:20 Replacing the 7805 Regulator
06:17 Wiring Up the Power Outputs
06:26 First Reinstall Test in Keyboard
07:06 Suspecting Bad Capacitors
07:31 Replacing Electrolytic Capacitors
08:00 Voltage Drop Under Load Explained
08:30 Using Arcade PSU Regulators for Repair
09:52 Installing New Regulators
10:26 Full System Reboot Test
11:30 Audio Output Test & Final Fix
12:08 Keyboard Running Successfully After 15 Minutes
Enjoy my Playlists -
Wireless Electricity: youtube.com/watch?v=yYoYyuR1KuI&list=PLIhGrBMUdssWpFSLW1hznwNqXWpCxhDRQ
Electronics Projects: youtube.com/watch?v=F4nfaYkGvQI&list=PLIhGrBMUdssWLQWtW4dWWGgh25XG3HXek
Solar Projects: youtube.com/watch?v=nmKfxI4MTTs&list=PLIhGrBMUdssXu9Pmduvopm02_7IMz8d3M
Reviews: youtube.com/watch?v=8jAJysXXsw8&list=PLIhGrBMUdssUYzRgA1mrp18zwpTtClmov
💼 Business and reviews email:
youtube.scoop273@passinbox.com
#electronicsrepair #vintagetech #keyboardrepair #synthrepair #restoration #retrotech #repairtutorial #fixit #electronicsdiy #psurepair #vintageelectronics #righttorepair #techtok #repaircommunity
