Bose 3-2-1 Repair

today we're going to be working on a bose 3-2-1 system this is i want to say it's their first uh generation 3-2-1 the problem i had here is that i turn it on one day and it just no longer powered up i didn't get any display on the screen i didn't get anything so it just stopped working all together now real quick anybody who's looking at buying a bose system know that there's a large community of people out there that just do not like bose period they don't sound well and from my experience i would i would have to agree i probably don't have as discerning as an ear as most folks do who really appreciate fine music but this certainly is not um anywhere near the kind of sound quality that you'd get with what i would expect from a like a three-way speaker system well i see it say three-way i'm thinking the the floor stand speaker system it's missing it seems to be missing something it's it's hard to say what it is but it just definitely doesn't have the i want to say like all the the middle tones or the mid-range in a song so you seem to be missing just a lot of like acoustics in the middle but what you get is that a lot of low a lot of lows and a lot of highs but nothing in between all right the first thing you'll notice is i took out the main electrical system out of there uh you can see this big cooling shroud here or the cooling fins and when you look inside of this thing it's actually came out pretty easy it's secured here by these four points one two two on this side here's the screws and you can see them back there how they are screwed bit in back here there up here there's still one in the corner there it was kind of tricky to fish it out i think what i had to do was actually kind of uh i think it came out through the bottom here we'll find out when i put it back together again the other thing you're going to notice here is there's not much to this i guess maybe the magic of the sound is in the inside of the box but when i look at this it just does not seem to be a very sophisticated piece of um a sophisticated build and i don't think this is atypical of most speaker systems but for the cost the price that i had to pay to have the system for as proprietary it as it is and it's it doesn't work with other systems so again if if you have a problem with one of these you are sh you are out of luck so just note that you're paying a lot of money for something that just doesn't look to be all that sophisticated you're probably paying for the fact that it's bose and that it is a proprietary piece of equipment so what's wrong with this thing well the first thing i came across is the the circuit board here and the main fuse now to pull this thing what i actually did was just took up an iron and just press that iron against this point one right there and one over here and while i held this iron on it here's the iron when i held that soldering iron on it what i did is i pulled up gently pulled the uh cold on it with a small plier here needle nose plier and just pulled each end one at a time and what you ended up getting when we actually look at it as you can see the middle of that now you can't see it real well but the middle of it is the fuse is blown well here's the new fuse ordered from a park center out of eden prairie i believe it's sears parts center it was only like two or three bucks the shipping was seven or eight dollars okay i dabbed a little flux on those the terminal reinserted it in those holes from the previous fuse taped it to hold it now i'm going to take a look here at the other side okay i'm just cleaning up this with uh the flux i have i can just clean it up with a little a little bit of water here a little damp okay what we're doing now is we're just screwing those in and what you'll find is you don't have a lot of it's not easy just get those screws all the way down down and between this so what you're gonna have to do is take those screws and just tape it on just tape it enough to hold it like that and that'll get you down there and you'll be able to screw that in okay now that i got this uh i got all four points screwed down uh actually to get this unit back in there all you have to do is just kind of hook this uh the lower plate here the circuit board right around the uh right around the top side if you can imagine it just kind of going in like this that makes sense so your heat sink that's uh pressed up against the board it's bolted down now let's just get these all these plugs put in the right place if i can remember where and how they go in now let's see just take a quick survey what i got well as you can see it powered right up check it out no problem what i've done is i rigged it up to uh apple tv device put a little uh tv up here with some speakers because i don't think i'll ever use this in my entertainment system again in the home

Channel: mahnly

Views: 263,711

Keywords: Bose, 321, 3-2-1, Bose Repair, fix it yourself, Bose won't work, Bose sucks, Blown fuse

Id: YA4DBVnadko

Length: 6min 56sec (416 seconds)

Published: Sat Jan 12 2013