RC-MJ70 Line In DIN question

[Dancorp]

Thanks a lot Goodman
For now, the Bluetooth device is not integrated. I will take picture later.
I use a 5vdc powered one to use the same power supply with my led mod. (30W 5V6A)

 

[Dancorp]

Here a new and easy way to switch on the DIN connector/function on any M70L. Simply use the DIN position like a LINE IN one.
- No holes to dig
- Just a a female RCA to male DIN adapter.
- Embedded system will also be switched off when a DIN connector is plugged
- U only need to remove the back cover, a cutter and a iron solder.

I am sure that this modification can be made on other JVC type L boombox.

Dan

 

[Fatdog]

 

[sernas88]

Thanks

 

[donahuest]

I am not a specialist but I understand a bit of it to say it in your words. Do you confirm that I can also do my next proposal of which I think that it is actually just the same as your solution, or better a variation of it:
I just take a regular cable with a 3.5 plug (for MP3 unit) on one , and 2 Cinch plugs at the other end. Then I cut the cable and apply the 2 10k Ohm resistors in between. That should be the same as yours with the built in jack, right?

This is impracticable and I think would not work...
This is an attempt to do attenuator,
but he does not only consist of 2 resistors...
Attenuator is specifically designed scheme.
Therefore, it is placed in such a case.

My Idea is to bypassing the phono amp.
In this case, you must open the radio, drill hole for 3.5mm jack,
find 8 pin connector, with a soldering gun making electrical connections.


If you don't want to open the radio and keep it in its original form,
you must buy attenuator, just like this:

Does anybody know where to get one?
I am not a specialist but I understand a bit of it to say it in your words. Do you confirm that I can also do my next proposal of which I think that it is actually just the same as your solution, or better a variation of it:
I just take a regular cable with a 3.5 plug (for MP3 unit) on one , and 2 Cinch plugs at the other end. Then I cut the cable and apply the 2 10k Ohm resistors in between. That should be the same as yours with the built in jack, right?

This is impracticable and I think would not work...
This is an attempt to do attenuator,
but he does not only consist of 2 resistors...
Attenuator is specifically designed scheme.
Therefore, it is placed in such a case.

My Idea is to bypassing the phono amp.
In this case, you must open the radio, drill hole for 3.5mm jack,
find 8 pin connector, with a soldering gun making electrical connections.


If you don't want to open the radio and keep it in its original form,
you must buy attenuator, just like this:

 

[goodman]

donahuest, this idea with phono attenuator is easy way to resolve this problem.
The best way is to opem box and made this mod:
http://boomboxery.com/forum/index.php/topic/24985-rc-mj70-line-in-din-question/?p=313825

or try this mod by Dancorp:

http://boomboxery.com/forum/index.php/topic/24985-rc-mj70-line-in-din-question/?p=366074