i have a broken craig jukebox and want to salvage speakers and case to make a working one

i have a broken craig jukebox Bluetooth speaker system, it wont turn on at all bought for 8$ and i am trying to figure out if i can salvage the speaker and possible the lights. i thought i could use something like a breadboard to rewire the speakers and lights to make it work at least of a aux cord and if possible Bluetooth. this is a link to the speaker https://craigelectronics.net/product/cht935bt/   its got (4 x 5w rms output) speakers. i'm looking for a cheap alternative to get it working, again i don't know why its not working i put the cord in and it doesn't do anything from a quick look i saw nothing in the circuits that's broken or burnt out.

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Jack A Lopez3 months ago

The symptoms you describe,

i.e. "i put the cord in and it doesn't do anything"

these symptoms suggest your gizmo is not getting any power.

I am guessing the "cord" you refer to is the AC adapter.

Could you tell us more about that? I mean the product page you linked to (and I thank you for having the courtesy to link to that for us), the product page mentions the existence of an AC (to DC) adapter, but no specs for this. But, you know, since you've actually got the thing in your hands, it maybe has some hieroglyphics printed on it? Numbers for DC voltage (in volts, V) or maximum current (in amperes, A).

You know, the gizmo shows no signs of getting power, so the power supply ( which in this case is an AC adapter) is the place to check first.

Do you have a multimeter in your toolbox? You know something to at least check out the DC side of the AC (to DC) adapter, and at least observe if there is some DC voltage there.

By the way, if you can find an actual manual for this gizmo, (I have searched a little bit, but I have not found one yet.) or something with a little more info than just the product page, there might be some clues to be found there.

Rogardin. (author)  Jack A Lopez3 months ago

sorry for late response, and thank you for taking the time to answer, its dc power at 12v 2a and the cord i have is rated for that although the cord isnt the one that came with it. the device does get power but like i said it doesn't turn on at all so i thought maybe a fuse or something blew but cant find any thing that suggest that happened. the cord works too i have another device that uses it at same power ratio and it works fine.

Still there? Um... have you looked at the manual,

http://craigelectroni.wpengine.com/wp-content/uplo...

On page 9, there is a table titled "troubleshooting guide", with a bunch of different stuff to try. Holding the the whatchacallit, "standby", button down for a couple of seconds, is one of those ideas that looks promising.

Also there is maybe the possibility that maybe the volume is turned all the way down to zero, necessitating pushing the "volume up" button a bunch of times.

Forgive me if any of this seems obvious, or if this is stuff you have tried already.

Also if pushing buttons is not going to make it work, then maybe deeper analysis is required. I mean: Take the cover off. See if you can identify what parts are there on the circuit board; like particular ICs. Then look up the data sheets for those ICs, to see if you can discover how they're supposed to work; i.e. which wire goes where, and which pin does what.

I know that is very generic advice, but I do not have anything specific I can say about this amplifier gizmo. I've never taken this particular one apart. So all I can do is point you towards the manual, and suggest that this amplifier is probably like other audio amplifiers out there; i.e. it uses the same ICs. Although I cannot guess which ones.

I mean, if you cannot find a way to make it work, either by pushing buttons, or by soldering, and unsoldering, wires, in that case what can you do?

Mourn the loss of your eight dollars? That plus the time wasted. Or this amplifier thing could be used as a doorstop, or perhaps as a paperweight?

;-)

Jack A Lopez3 months ago

Link to all manuals (it is in -->retro-classics-->jukeboxes)

https://craigelectronics.net/product-manual-downlo...

Direct? link to CHT935BT-IM.pdf

http://craigelectroni.wpengine.com/wp-content/uplo...

rickharris3 months ago