Faulty Focal Dome Active Subwoofer | Can I Fix It?

A viewer called Alan asked if I could take a look at his Focal Dome Active Subwoofer. These were quite expensive when they came out at around £1500 for the full setup. When it's turned on, there's a brief flash from the power light, then it fades out, and does nothing else.

Let's take it apart, see if we can figure out the problem and hopefully repair it!

I'm not an expert, but I do enjoy trying to fix things.

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Some of the tools and equipment that I use:

KAIWEETS KTI-W02 Pro Thermal Camera:
***UNFORTUNATELY THERMAL CAMERAS ARE OUT OF STOCK***


15% off other Kaiweets products code: BIFI15
(Available sitewide at kaiweets.com and it never expires.)
https://kaiweets.com/en-gb/collection...


TOMLOV 4K AF Microscope:
10% Discount use code: BUYITFIXIT

TM4K-AF Flex: 8" screen
Official Website: https://bit.ly/3ZUMEe8
Amazon UK: https://amzn.to/4dFLyGn
Amazon USA: https://amzn.to/3KYm920

TM4K-AF Max: 10.1" screen
Official Website: https://bit.ly/3Yg68bZ
Amazon UK: https://amzn.to/4eyDGYj
Amazon USA: https://amzn.to/47ZJ5FB


FNIRSI HS-02 Soldering iron with toolbox and 6 tips: (use code: BuyItFixIt for 6% off)
https://www.fnirsi.com/products/hs-02...

Cheaper Alternative HS-02 link (without the toolbox and only 1 tip use code: BuyItFixIt for 6% off):
https://www.fnirsi.com/products/hs-02...

Link to other FNIRSI products (BuyItFixIt for 6% off)
https://www.fnirsi.com/buyitfixit

The Famous Blue Mat: https://amzn.to/47bPNGK
De-Soldering Station: https://amzn.to/48bnpIL
Engineer SS-02 Solder sucker: https://amzn.to/4fM9gS6
Infiray P2 Pro Thermal Camera: https://amzn.to/47c05Xm
170 piece electronics tool kit (security bits): https://amzn.to/3VnmHBh
SMD Tweezer set: https://amzn.to/3t9GlW4
Aixun T3A Soldering Station: https://amzn.to/3Xa8HMe
Soldering Flux: https://amzn.to/3DLhIE9 Alternative: https://amzn.to/4dVRdcN
Low Melt Solder: https://amzn.to/3QICZ5r : Cheaper Alternative https://amzn.to/3G4L3XK
Grinding pen: https://amzn.to/4aaocZq
Component Tester: https://amzn.to/46UcHm6 alternative (slightly cheaper) https://amzn.to/49yZSzJ
Overhead Camera Mount I Use: https://amzn.to/3tX8Ar4
Microscope Light (I use on my Trinocular): https://amzn.to/3FEAPgy
AD409 Pro Microscope 10" Screen: https://amzn.to/3G0CI7P
Extra Long Torx Drivers(used on Milwaukee radio): https://amzn.to/40siUU3
DC Power Adapter plugs 38 PCS: https://amzn.to/40mgUy9
USB Power Meter Tester: https://amzn.to/3R6NX4g
SMD Component ruler 3x (for sizes of SMD components): https://amzn.to/3TvfcWO

Rework station: I was using a 858D clone but now using an ATTEN ST-862D .

Capacitor Discharger by Dan Wilson: https://github.com/wilsondr9999/1024-...

Other Equipment:
Main Overhead camera: Sony HDR-CX450 with 3rd party remote and RODE VideoMic Pro
Other cameras: Canon G7X, iPhone 6s, Go Pro Hero Silver 7 (which repaired)
Microscopes: Amscope trinocular (clone) with FHD 48MP Camera V8
& TOMLOV TM4K-AF Max.
Bench PSUs: TTI EX4210R & TTI TSX3510P

Editing Software: DaVinci Resolve

The above links are amazon affiliate links, and I may receive a small amount from Amazon at no extra cost to you, if you choose to purchase an item.


#electronics #electronicsrepair #repair #repairing
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