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How to get inside a TDK boombox!

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#31 BoomboxLover48

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Posted 28 September 2017 - 11:00 AM

It is better to buy a Samsonite Fiberglass luggage box and put those components and speakers there. Opening becomes so easy! Can put a battery pack, and all goodies in it.


It will transform to an  AIWA wheelie! Spins too! 

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#32 sbb2112

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Posted 05 October 2017 - 08:54 AM

Update, sorry about the hijack of the thread, the box came apart just as the photos showed. I bent the tabs back on the pot and desoldered the 3 pins to remove the guts. I think things were just a little covered with gunk and I took a strip of paper and placed under the wiper fingers and turned the shaft back and forth and repeated holding the paper so it moved with the finger to clean off the board traces. The paper was black both times. Put a meter on the pins both ways and didn't see any big swings so back together it went. The tabs that held down the shaft flange were a little loose when I disassembled, so I made sure they were down tight. The knob play went away and so did the volume problem. Not sure I'd tear apart again but I really like the box and it catches everybody's eye setting on the desk. Lots of comments. Was glad to plug in the new walkman to it instead of the computer speakers I was forced to listen to while she was down. A big hats off for the help on this everyone!



#33 blu_fuz

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Posted 05 October 2017 - 08:59 AM

Super glad to hear!

#34 jimtran93

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Posted 08 October 2017 - 11:04 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




Thanks for this guide! You're amazing!!

#35 riker1068

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Posted 09 October 2017 - 12:02 PM

I would have smashed it and took a video of it on fire!

#36 sbb2112

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Posted 09 October 2017 - 12:08 PM

I would have smashed it and took a video of it on fire!

I still might. My cleaning only lasted 2 days. It went back to the same crap. I think I can find a new pot. I did some looking and found the same style just have to take apart all the way (removing the entire pot off the board) and verify the specs. Only took off the top section before.

#37 andyt2256

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Posted 22 January 2018 - 09:54 AM

Hi there I have the same problem with my 3 speaker tdk the volume led has stopped working and the volume at the lowest setting is very loud . Firmware update ? Or just the pot malfunction

#38 blu_fuz

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Posted 22 January 2018 - 10:33 AM

I would guess a pot malfunction. I have never done the firmware update on my TDK 2 or 3 speaker boxes and they all still work.

#39 Billy Bill

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Posted 23 August 2018 - 07:51 AM

Clearly potentiometer, Firmware update will not help. Got mine replaced few mounts ago - 50K linear from ebay for less than 2 pounds.


Does any one experienced issues with the selection wheel (the right one)? Like not moving the selection or moving it in the wrong direction? Any fix eventually?



#40 Reli

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Posted 14 June 2019 - 08:07 AM

Legendary thread!  These things are built like tanks.  The 3-speaker one weighs 27 lbs!  That's gotta be similar to a Conion C100!

#41 pasta

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Posted 10 November 2019 - 11:02 PM

I have the Cube (non-wireless version). There is power but no sound after several years of stellar performance. Does anyone know a fix?



#42 Transistorized

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Posted 23 November 2019 - 01:37 PM

I would have smashed it and took a video of it on fire!


I remember that video of the C100 on YouTube.

#43 bryce0lynch

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Posted 02 December 2019 - 01:19 PM

I bricked my pristine 2-speaker TDK trying to flash the firmware to fix the annoying auto-off issue.  Bought a used but working one off of eBay that was in TERRIBLE shape. Tore it apart to get at the boards with the flash. It seems like there are two that have the potential for the board I need, so I'll move both. 



*) Prying off the faceplate is anxiety ridden. I was terrified I would crack it. And that was the junky unit!

*) The connectors, board, etc are heavily super glued/mastic'd. They did a decent job trying to vibration-proof the thing. Makes it a pain to disassemble though.

*) But there are also weird jumper wires that look hand soldered after the fact. Really out of place. 

*) In retrospect, I should have just moved the trim pieces off of my unit to the junky one instead of messing around with the boards.


I'mm be trying to complete the project tonight or tomorrow night.

#44 caution

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Posted 02 December 2019 - 01:40 PM

TDK designed a contingency for that, you didn't have to tear it apart to un-brick it.

I had a flash update go bad, and had to go through this procedure, but it works.