Uploaded February 2022 | Updated September 2026, 1 hour ago
In this video:
We have what I thought would be some fairly straight forward repairs. However, the Metronome ended up being a bit of a nightmare. Lot of corrosion due to bad batteries that remained inside the device for way too long. I think a lot of people would just throw the device in the bin. However, that is not what we do on this channel. We get to see several methodologies for corrosion removal. We also get to see LCD signal tracing on an oscilloscope and some rather unorthodox methods to restore carbon pads and bad termination points on a passive LCD display. Culminating in a devise that still has arguable usability. Hopefully you find this video entertaining. Apologies for the length of the video. However, I felt it was best to fully represent the troubleshooting, diagnostics, and repairs I performed. These could have applicability with other devices that have similar issues and not necessarily the device of this video.
---Break---
Chapters
00:00 Intro
01:20 Flashlight Disassembly
02:42 Flashlight Diagnosis
07:54 Flashlight Repair
09:02 Flashlight Reassembly & Testing
09:45 Korg Metronome
10:51 Visual Inspection
13:07 Disassembly
13:44 Corrosion Nightmare!!!!
15:12 Corrosion Removal & Cleaning
19:24 PCB Trace Testing
32:12 PCB Button Pad Repairs
40:07 Button Functional Tests
41:40 LCD Diagnostics & 1st Attempt Repair
44:30 More LCD Diagnostics & 2nd Attempt Repair
47:50 XTAL & LCD Signal Analysis
55:45 LCD PCB Pad Oxidation Removal Methods
01:02:48 Mores Signal Analysis
01:07:20 Resistance Measurement PCB LCD Pads
01:10:32 Final LCD Signal Analysis
01:14:05 Yikes!!! LCD Damage!!!
01:15:45 3rd Attempt LCD is it Finally Repaired...?!?
01:19:50 Outro
---Break---
Video editing and music via Cyberlink PowerDirector365 at link below:
cyberlink.com/products/powerdirector-video-editing-software/overview_en_US.html
---Break---
Enjoy this video? Check out my Google site page for more! Including basic electronics guides.
sites.google.com/view/havingfunrepairs/home
---Break---
More Playlists?
Vehicle Repairs:
youtube.com/playlist?list=PLJiUNvL4lwvFKnJ6Wjsy32dzu6qLrWZ_K
Consumer Electronic Repairs:
youtube.com/playlist?list=PLJiUNvL4lwvHQjfGphg9t_8QlL9FmIMit
Game Console Repairs:
youtube.com/playlist?list=PLJiUNvL4lwvEW1dIzfpQdeCNduAqUg-P4
Odd Electronic Repairs:
youtube.com/playlist?list=PLJiUNvL4lwvHe_xMQuUdzgG-B1FL5YFGP
Toy Repairs:
youtube.com/playlist?list=PLJiUNvL4lwvGArIU6iFOTqbdnK9l5wXQ3
Cell Phone Repairs:
youtube.com/playlist?list=PLJiUNvL4lwvEBGfKXDPDt0kkCslix_RHk
Kids STEM Projects:
youtube.com/playlist?list=PLJiUNvL4lwvE97hyQsOXFNrL8XgfGI6rM
---Break---
As always be excellent to each other!
#electronics #repair #STEM
In this video:
We have what I thought would be some fairly straight forward repairs. However, the Metronome ended up being a bit of a nightmare. Lot of corrosion due to bad batteries that remained inside the device for way too long. I think a lot of people would just throw the device in the bin. However, that is not what we do on this channel. We get to see several methodologies for corrosion removal. We also get to see LCD signal tracing on an oscilloscope and some rather unorthodox methods to restore carbon pads and bad termination points on a passive LCD display. Culminating in a devise that still has arguable usability. Hopefully you find this video entertaining. Apologies for the length of the video. However, I felt it was best to fully represent the troubleshooting, diagnostics, and repairs I performed. These could have applicability with other devices that have similar issues and not necessarily the device of this video.
---Break---
Chapters
00:00 Intro
01:20 Flashlight Disassembly
02:42 Flashlight Diagnosis
07:54 Flashlight Repair
09:02 Flashlight Reassembly & Testing
09:45 Korg Metronome
10:51 Visual Inspection
13:07 Disassembly
13:44 Corrosion Nightmare!!!!
15:12 Corrosion Removal & Cleaning
19:24 PCB Trace Testing
32:12 PCB Button Pad Repairs
40:07 Button Functional Tests
41:40 LCD Diagnostics & 1st Attempt Repair
44:30 More LCD Diagnostics & 2nd Attempt Repair
47:50 XTAL & LCD Signal Analysis
55:45 LCD PCB Pad Oxidation Removal Methods
01:02:48 Mores Signal Analysis
01:07:20 Resistance Measurement PCB LCD Pads
01:10:32 Final LCD Signal Analysis
01:14:05 Yikes!!! LCD Damage!!!
01:15:45 3rd Attempt LCD is it Finally Repaired...?!?
01:19:50 Outro
---Break---
Video editing and music via Cyberlink PowerDirector365 at link below:
cyberlink.com/products/powerdirector-video-editing-software/overview_en_US.html
---Break---
Enjoy this video? Check out my Google site page for more! Including basic electronics guides.
sites.google.com/view/havingfunrepairs/home
---Break---
More Playlists?
Vehicle Repairs:
youtube.com/playlist?list=PLJiUNvL4lwvFKnJ6Wjsy32dzu6qLrWZ_K
Consumer Electronic Repairs:
youtube.com/playlist?list=PLJiUNvL4lwvHQjfGphg9t_8QlL9FmIMit
Game Console Repairs:
youtube.com/playlist?list=PLJiUNvL4lwvEW1dIzfpQdeCNduAqUg-P4
Odd Electronic Repairs:
youtube.com/playlist?list=PLJiUNvL4lwvHe_xMQuUdzgG-B1FL5YFGP
Toy Repairs:
youtube.com/playlist?list=PLJiUNvL4lwvGArIU6iFOTqbdnK9l5wXQ3
Cell Phone Repairs:
youtube.com/playlist?list=PLJiUNvL4lwvEBGfKXDPDt0kkCslix_RHk
Kids STEM Projects:
youtube.com/playlist?list=PLJiUNvL4lwvE97hyQsOXFNrL8XgfGI6rM
---Break---
As always be excellent to each other!
#electronics #repair #STEM
