Troubleshooting an NES Game Cart - A cart with a blue screen problem

This video shows the my full attempt at repairing an NES game (Amagon) that for all accounts appears to be in wonderful condition, but loads a solid blue screen when testing. I decided not to shorten this video and just upload the full process so that you can see all my troubleshooting.

My original post for this can be found at https://www.tzirf.com/nintendo-consol...

For additional resources & guides you can visit my website https://www.tzirf.com. It is a forum based website where I post all the repairs I am working on so that the resources are there for others to do the same repairs. If you are working on a repair and want to share it, or need help with your repair I encourage you to join and make a post.

0:01 Intro (The blue screen of death problem) ]
0:29 Opening Amagon
1:30 Initial inspection of spins/PCB
3:00 inspecting traces with microscope
4:30 inspecting pins with microscope
8:50 checking pins & traces are connected with multimeter
13:50 What I use to polish/clean pins on game carts
16:15 Using deoxit & magic eraser to clean pins
20:25 Removing corrosion/pitting with pick under microscope
28:00 Testing game after some cleaning
29:14 Further testing of capacitor on board
30:00 Explaining how to test a capacitor
32:00 de-soldering capacitor
34:14 Testing capacitor with multimeter
35:50 results of testing and my theory of the problem
37:55 Testing the game for the final time
38:32 Outro & explanation

Music by: bensound.com
License code: Z2EMDMRZ1W9IR2ZL