Uploaded May 2025 | Updated September 2026, 8 hours ago

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In this video:

I have another car subwoofer amp that needs repair.

As always feel free to comment and open discussion on the content in this video in the comment section. Thank you for watching!

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Business:
In need of repair, restoration, or data recovery please visit
sites.google.com/view/havingfunrepairs/business-repairs

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Chapters
00:00 Intro
00:23 Overview
01:14 Power-up & Initial Checks
03:44 Verifying No Audio Out
05:28 12, +5, -5VDC Rail Checks
07:39 Audio at Pre-amp (Op-amp Checks)
09:14 Toning to Drive Board
10:28 Power Amp Board Checks
13:07 MOSFET Replacements
16:50 Post Repair Power-up Check
18:03 Audio Out Check (Womp Womp)
19:39 More Troubleshooting
21:47 SMD Replacements (10 Ohm/603 Resistors)
22:21 Final Checks & Audio Analysis
25:12 Outro

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Video editing and music via Cyberlink PowerDirector365 at link below:

cyberlink.com/products/powerdirector-video-editing-software/overview_en_US.html

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Enjoy this video? Check out my Google site page for more! Including basic electronics guides.
sites.google.com/view/havingfunrepairs/home

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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

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As always be excellent to each other!

#electronics #repair #STEM