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How to get inside a TDK boombox!


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#1 blu_fuz

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Posted 28 January 2012 - 03:41 PM

As a lot of you know I recently purchased a TDK 2 speaker boombox that had a wonky volume knob. The pot itself was wiggly and the switched "on/off" part of the knob didn't work so I had to unplug the box everytime I stopped using it. I purchased a replacement volume pot/circuit from someone on ebay to swap out with my broken one thinking it wouldn't be too hard :lol: .


So, not knowing how to open the boombox, I asked the ebay seller that I got my parts from :thumbsup: . If it wasnt for him, there is no way I would have got into it. He gave me some great tips.

These steps are for OPENING THE BOOMBOX COMPLETELY! If you need to remove just the speakers, follow steps 6 & 7

1. remove handle allen bolts
2. remove strap bracket allen bolts
3. remove side plastic trim that curves around to the bottom with allen screws
4. pull the volume knob away from the face and wiggle the LED circuit board from the knob
5. pull the selector knob away from the face while wiggling it - there are little clips that release
6. pull the decorative rings off from around the speakers
7. remove the 4 phillips screws holding in the speakers, pull the speakers out, and slide off the quick connectors,
8. you can see 5 more screw holes that were buried below the lip of the speakers, inside those are more phillips screws


this is where it gets tricky...


9. to axcess the other 16 screws you have to pry off the shiney black face of the boombox
10. gently start wedging something behind the plexi at a top corner
11. use a hairdryer on hot/low to soften the double sided sticky tape that holds the plexi on
12. work slow and carefull all the way around the boombox to pry the plexi away from the front case
13. once the plexi is off, set it aside face down so you don't accidently stick the plexi to something
14. remove the remainder of phillips screws on the front case (1 is extra long top center, a few short ones on the bottom, and the rest around the perimeter are all the same length)
15. if you look behind the left speaker you can see a gray ribbon band that tethers the rear case to the front circuitry - pull it out of the connector on the front side of the case
16. the top and bottom of the boombox has rubber stuck to it, pull up the rubber just away from the front side of the case
17. pull the front of the case straight off from the rear side
18. there are still some cables tethered, but you should be able to work from there



GOOD LUCK!

#2 baddboybill

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Posted 28 January 2012 - 04:18 PM

Great info Joe :thumbsup:

#3 skippy1969

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Posted 28 January 2012 - 04:35 PM

Geez,sound like a lot of work......... :hmmm: :thumbsdown:

#4 bklyn sound

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Posted 28 January 2012 - 05:08 PM

hey joe they do make medication for this........lololol great writeup :breakdance: :breakdance:

#5 -GZ-

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Posted 28 January 2012 - 05:17 PM

hey joe they do make medication for this........lololol great writeup :breakdance: :breakdance:

Sure do...johnny walker black...neat :-D

#6 MasterBlaster84

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Posted 28 January 2012 - 05:35 PM

That's got to be the most complicated box to disassemble. :-O

#7 Jboogie2384

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Posted 28 January 2012 - 05:39 PM

Wonder if this would work on the 3 Speaker as well. One of my daughters pushed in the woofer cap :thumbsdown: :bang:

#8 BoomboxLover48

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Posted 28 January 2012 - 06:21 PM

:-O :-O :-O

May be it is not designed for repairs or service.. :lol: :lol:

what a pain :hmmm: :hmmm:

#9 Fatdog

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Posted 28 January 2012 - 08:18 PM

Sticky :-D

#10 blu_fuz

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Posted 28 January 2012 - 09:19 PM

Yeah, it was a doozie :dunce: . Thanks for popping it up for a sticky! :thumbsup:


Boogie, the speaker removal is probably the same for the 3 speaker TDK. Just catch the lip of the trim ring just outside the speaker flexible surround and pull it towards you. Should pop right out with no force.


I was going to take pictures but I was so involved with getting into the box, soldering the new circuit board in, and hoping to get it back together with no problems.


It was the worst boombox I have ever tried to open but is VERY simple inside...... one circuit board for the main functions and a couple small ones but there is TONS of room in it :hmmm: .

The magnets on the back of the speakers are almost the size of a softball! :lol:

#11 blu_fuz

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Posted 18 April 2012 - 07:01 PM

1. remove handle allen bolts
Posted Image


2. remove strap bracket allen bolts
Posted Image


3. remove side plastic trim that curves around to the bottom with allen screws
Posted Image
Posted Image


4. pull the volume knob away from the face and wiggle the LED circuit board from the knob
5. pull the selector knob away from the face while wiggling it - there are little clips that release
Posted Image
Posted Image
Posted Image



6. pull the decorative rings off from around the speakers
Posted Image
Posted Image
Posted Image



7. remove the 4 phillips screws holding in the speakers, pull the speakers out, and slide off the quick connectors,
8. you can see 5 more screw holes that were buried below the lip of the speakers, inside those are more phillips screws
Posted Image
Posted Image
Posted Image



9. to axcess the other 16 screws you have to pry off the shiney black face of the boombox
10. gently start wedging something behind the plexi at a top corner
11. use a hairdryer on hot/low to soften the double sided sticky tape that holds the plexi on
12. work slow and carefull all the way around the boombox to pry the plexi away from the front case
Posted Image
Posted Image
Posted Image
Posted Image
Posted Image
Posted Image
Posted Image
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12020.jpg
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12021.jpg
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12022.jpg



13. once the plexi is off, set it aside face down so you don't accidently stick the plexi to something
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12023.jpg



14. remove the remainder of phillips screws on the front case (1 is extra long top center, a few short ones on the bottom, and the rest around the perimeter are all the same length)
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12024.jpg
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12025.jpg
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12026.jpg



15. if you look behind the left speaker you can see a gray ribbon band that tethers the rear case to the front circuitry - pull it out of the connector on the front side of the case
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12028.jpg
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12027.jpg



16. the top and bottom of the boombox has rubber stuck to it, pull up the rubber just away from the front side of the case
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12029.jpg
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12030.jpg
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12031.jpg
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12032.jpg



17. pull the front of the case straight off from the rear side
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12033.jpg
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12034.jpg



18. there are still some cables tethered, but you should be able to work from there
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12035.jpg
http://i49.photobucket.com/albums/f253/blu_fuz/4-18-12036.jpg

#12 selah

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Posted 18 August 2012 - 11:06 PM

this is fantastic (esp. w/ the pictures)

VERY well done!

#13 Reli

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Posted 12 March 2013 - 10:52 AM

Nice write-up. Love the funky curved bass port!

#14 AE_Stereo

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Posted 12 March 2013 - 01:06 PM

OMG!!!

You got a Ph. D now. Thesis titled "How to open a TDK"

Many 80's boxes had a little arrow marked on the screws for opening the box.

#15 oldskool69

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Posted 12 March 2013 - 07:55 PM

:-O :-O :-O

May be it is not designed for repairs or service.. :lol: :lol:

what a pain :hmmm: :hmmm:


BINGO!!! They don't want you to repair it! They want you to buy another! :lol:

#16 blu_fuz

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Posted 12 March 2013 - 08:18 PM

It does seem they don't. Want you to fix them, just steal the speakers and junk the rest :lol:

#17 Brutus442

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Posted 16 March 2013 - 10:47 AM

BINGO!!! They don't want you to repair it! They want you to buy another! :lol:[/quote]


A sad but true reflection of our audio equipment these days :sadno: :sadno: :sadno: :sadno:

#18 Mistahkeith

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Posted 02 May 2013 - 06:04 PM

Cool Man



#19 blu_fuz

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Posted 02 May 2013 - 06:05 PM

Glad you got on the site keith!

#20 Reli

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Posted 02 May 2013 - 06:59 PM

Been tempted to buy one of these, but what's the deal with the problems they've been having?  Something to do with circuit boards or USB ports failing?  Anyone know?



#21 riker1068

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Posted 08 August 2014 - 01:35 PM

The usb has to be updated with software, But overall it will still cut out from time to time. When I use the line in. All is well, and who really needs to use the usb any ways. Sure its nice, but you can get by without. The sound is superb, but it just comes up a little short on volume. It's loud! But for the coin, i'd expect more from it.    I wonder if the speakers would fit into a 777 0r 1000 :frankenstein:   



#22 caution

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Posted 26 October 2014 - 01:04 PM

Does the stereo quality take a hit with having the speakers so close together?



#23 blu_fuz

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Posted 26 October 2014 - 06:24 PM

I dont use my usb jacks at all just because i dont want to chance having it lock up and stop working like a lot of other members. Line in mini jack or rca jacks only for me.

#24 Martin123

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Posted 31 March 2016 - 07:42 PM

Is there a big difference from the 2 speaker and the 2 speaker A73?



#25 blu_fuz

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Posted 31 March 2016 - 07:54 PM

Yes, very different setup. Someone else will have to explain how to open one of those.

#26 sbb2112

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Posted 26 September 2017 - 04:18 PM

I know this is pretty old but maybe someone might see this. I have the 2 speaker tdk box and it seems to have developed volume control issues. It turns on and off and volume is able to be turned up and down but every few minutes it will get really loud for a second or two and go back to normal. It happens when connected via usb and also on fm. I havent tried the line in or the rca but I suspect it is the volume control circuit. If anyone has a similar experience and has fixed it (it sounds similar to the OP), what was done and where were the parts sourced? Thanks in advance. Also, as with other sites I am on, the photobucket pics. are broken.



#27 jimmyjimmy19702010

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Posted 26 September 2017 - 04:32 PM

The TDK BT speakers have proprietary volume controls that aren't available as 'parts' from TDK. You may have to find a junker box for parts.

#28 blu_fuz

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Posted 27 September 2017 - 07:11 AM

All TDK boxes need to be fixed with good parts from a donor box. Best chance is to buy a smashed one on ebay and hope the parts you need are good. You could wire a separate switch for on/off and a normal volume potentiometer. It won't really fit nice to the existing holes in the TDK, but it could get it working again.

 

Sorry for the broken pic links, photobucket wants to charge me to upgrade my account. I think I still have the pictures somewhere......



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#29 sbb2112

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Posted 27 September 2017 - 07:20 AM

Thanks for the photos. This is way cool info. I really like the box and am going to spend the time to repair it. Looked on ebay and only see one unit and it is a working one and $$. Maybe I will get lucky and there is just some crap inside the wiper that I can clean out.



#30 blu_fuz

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Posted 27 September 2017 - 08:01 AM

The volume pots on the TDK are tricky to deal with.....

 

good luck.

 

 

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