The Bose 3-2-1 Home Entertainment System is a series of DVD-based home media systems in the Bose 2.1 home theater line. The Bose 3-2-1 Home Entertainment System was sold between 2001 and 2006 and was available in black and graphite colors.
My unit has failed after so many years of use. I’d like to open it up and see what I see to try and fix it.
How do you open it without breaking clips or marking the plastics? I can’t find an obvious way to disassemble the main unit.
There are only a couple videos on YouTube showing how to open this device and they all use a flat screwdriver to pry against the plastic which leaves serious marks and dents in the device. I have tried prying there with my ifixit plastic tools but no luck: I can’t get it to open.
I can un clip the front faceplate (the gray one) but can’t fully remove it because the DVD tray door is stuck shut and holds it. The unit won’t power so I can’t open the DVD tray and I don’t see any manual release for it.
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Ok I have figured it out. The service manual says:
1. Top Cover Removal
1.1 Place the console on the bench with the
front facing toward you. On the rear of the
console and using finger pressure only,
press inward in the center of the rear panel
just below the edge of the top cover (2).
When you have pressed the rear panel in
approximately 1/4", lift upward on the top
cover and release the pressure on the rear
panel of the console. The finger in the center
of the top cover should be sitting on top of
the corresponding latch hole in the rear
panel. Once the center finger has cleared, lift
upward on the rear edge of the top cover
until the four tabs to the sides clear the
console rear panel.
1.2 Slide the top cover to the rear of the
console approximately 1/2". Lift off the top
cover.
It wasn't very clear to me. Basically, the top cover slides off the device through the rear (where the connections are). But it has 4 triangular "fingers" holding it in place. These fingers are butting flat side against the rear "wall" of the device (the plane where the connectors are located). They're thin (maybe a millimeter thick) but rather tall (5ish millimeters).
To open it, you're supposed to unhook them with finger force so that the top plate then slides off... I couldn't do it like they describe, I had to use all my spudgers and guitar pics to lift the rear of the top cover so that these triangular fingers cleared the back wall and then slide the cover off. I used the blue "iFixit Opening Tool - plastic prying levers" to slide under the top cover and then lift the top cover. While holding it lifted, I slid a pick in the space to prevent the triangular finger from butting against the wall again. When doing all four like that, I was able to unlock the top cover. Be careful because in the middle there is a tab going through a hood and if you lift this one you'll snap the hook: that one has to slide off.
It's a crappy design to say the least. But I managed to open it without snapping anything; I'm surprised how flexible and forgiving the plastic is even after 20 years...
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I have also added all the service manuals, schematics, and test procedure documents I could find on this model to the ifixit page. I hope this helps someone :)
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