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Trunk's Technical Blog

How to Really Fix a Mini Cooper Harman Kardon Amp

Posted by Mark Kirschenbaum on

My girlfriend's mini cooper amp recently died after being stored for a while. Basically the head unit would power on and act normal, but nothing would come out of the speakers. I heard people also having the amp cut in and out everyonce in awhile. After some research I found this hardon-kardon amp costs $1050usd new and $500usd used. Obviously replacing the whole head unit and bypassing the amp would cost less than either solution. Being the hacker type I...

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How to fix GoPro Footage that Doesn't Play

Posted by Mark Kirschenbaum on

my image My team and I typically mount GoPro's on objects we are sure will get destroyed after we throw them out of a plane. Be it poker tables, bathroom setups, cars, or pianos; the GoPro footage we get from these objects impacting the ground is worth the $300 cost of the camera. To us, GoPros are semi-disposable and even better, the footage normally is salvagable! (Photo: GoPro Screen Grab courtesy Joe Jennings) This is a guide on how I've been able...

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Damaged GoPro File Repair Utility (HERO2)

Posted by Mark Kirschenbaum on

This is a re-post with permission from GoProUser Forums on how to repair a damaged MP4 file from a GoPro camera that was shutdown improperly. tchiers was kind enough to allow us to re-post this here since GoPro Forums requires you to register. For questions about this utility please see the original forum at this link. After I run a GoPro file through this utility I do do some other things, please read my full repair post here.  FROM tchiers:...

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Adding a Wired Shutter Release to the Sony NEX-5

Posted by Mark Kirschenbaum on

my image The Sony NEX5 is an amazing replacement for standard SLR cameras. In sports such as Paragliding, skydiving and B.A.S.E. jumping where the user is wearing their camera on their helmet, a lightweight high quality camera has always been sought after. The NEX5 is close to the perfect camera for these sports. It's super fast, high quality, and light. Unfortunately it's missing a wired shutter release switch. An IR shutter release mechanism can by hacked to allow for shutter release but in...

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Modifying a NEX7 with a hardwire shutter release jack

Posted by Mark Kirschenbaum on

my image This article will cover how to add an hardwired shutter remote 2.5mm jack to a Sony NEX7 Camera. This jack will allow you to fire a NEX-7 continuously and precisely with an external pocket wizard, tongue switch, timer, etc. The mod is a lot easier than the Sony NEX-5 but it takes just as much time to make it look pretty. You will need: #0 Philips screw driver 2.5mm jack. Used here is a "CONN AUDIO JACK 2.5MM STEREO SMD...

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