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Sanyo C30 - restoration & modification

Sanyo C30 restoration modification

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#1 goodman

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Posted 30 November 2018 - 10:05 AM

You know that I love to repair and restoring boomboxes from time to time.
Here's the story of this Sanyo C30:
A friend of mine bought it this summer with the intention of restoring it.
The main problem is with the tuner - it does not accept the FM stations well.
My friend understands from computers, but not from repairs of audio equipment.
In the summer Sanyo carried a repair to a master and he tried to fix the tuner without much success.
I was also looking for some masters, but I did not find anyone, who wants to repair this Sanyo...
About a week ago, he brought me this boombox and I gave him a JVC RC-BX330,
which works well on tape, radio and CD, but it does not fit nicely in my collection.

JVC RC-BX330 is type "egg" boombox...



Sanyo C30 - 01 by ivosn


First Stage - cleaning and recovery:
I thought I had a foam ideal for insulation of the speakers and mounting it.
Now the sound will be more dense and qualitative.



Sanyo C30 - 02 by ivosn



Sanyo C30 - 03 by ivosn


I cleaned Sanyo from outside and inside, changed the belts of the cassette deck.
I cleaned the potentiometers and the keys, remove power supply and washed the rear casing.


Sanyo C30 - 04 by ivosn



Sanyo C30 - 05 by ivosn



Sanyo C30 - 06 by ivosn


Tomorrow - Second Stage


#2 goodman

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Posted 01 December 2018 - 06:44 AM

Second stage - modification:
Some time ago I had bought a Mp3 module and thought to attach it in a boombox.



Sanyo C30 - 07 by ivosn


I could not repair the tuner, so I decided to use this module for this Sanyo.
I wanted to use Sanyo's power, but have some parasitic noise.
I solved the problem by using an autonomous power supply for the mp3 module.
I connected the module to the line input and tested - everything worked fine.



Sanyo C30 - 08 by ivosn


I found a place for the module and through a hole into Sanyo's back case.



Sanyo C30 - 09 by ivosn


I mounted the power supply, the keys and the module into Sanyo's back case.



Sanyo C30 - 11 by ivosn



Here is two power switch and line in for mp3 module.



Sanyo C30 - 12A by ivosn,


When handle is open, I have access to the module.



Sanyo C30 - 13 by ivosn



When handle is closed the module is not visible.



Sanyo C30 - 14 by ivosn



Waiting for next stage.


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Posted 01 December 2018 - 09:35 AM

Ingenious, i like this!

#4 goodman

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Posted 03 December 2018 - 08:33 AM

This is the final stage - assembling and testing:



Sanyo C30 - 15 by ivosn



Sanyo C30 - 16 by ivosn



I forgot to mention - I installed 2 white LED that illuminate the cassette in play, ff or rew mode.


stop mode:



Sanyo C30 - 17 by ivosn


playback mode:



Sanyo C30 - 18 by ivosn


mp3 module in playback mode:



Sanyo C30 - 19 by ivosn


original service manual and demonstration cassette + mp3 module remote control:



Sanyo C30 - 20 by ivosn




#5 MyOhMy

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Posted 03 December 2018 - 11:42 AM

I can never seem to make my mind up about this model.  On the one hand it's not exactly high end, looks as if it was produced on a budget with a splash of colour that doesn't help and looks absolutely awful when grubby through neglect - but wait (I say aloud!) - as simple as this box is, therein lies the beauty of this box.  If you have a clean, working model that's presented well (just like in the first post of this thread) then you have a little gem that's a pleasure to behold.   :yes:  :thumbsup:

#6 goodman

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Posted 04 December 2018 - 03:13 AM

This Sanyo C30 (with 1cassette) is a little brother of Sanyo C35 (with 2 cassettes).
If you remembered, I Have 2 Sanyo C35 in grey and 1 Sanyo C36 in black:




With speaker upgrade and with mp3 module mod this boombox work very good now. :yes:

Don't forget that is free for me, I replaced one unused "egg" JVC for this Sanyo.

So, I think this was a good deal. ;-)


These days, I will upload a short demo video...  :yes:




#7 goodman

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Posted 19 December 2018 - 07:39 AM

Here is a short demo video with cassette, radio and mp3 module playback:




#8 deech

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Posted 19 December 2018 - 08:28 AM

That is such a nice modification goodman.

My thoughts were similar with M.O.M , i wasnt a big fan of this box since for me it represents the

decline of Sanyo from the glory early days of 1980s ,this was a mid 80s ugly 3 piece cheap plastic Sanyo .

I was passing each time i saw one for sale and i ve seen a lot.

Now this has changed and models like C-10 C-20 etc had grown on me.

Well Not much but if it happens to find one i will buy it.

You did a terrific job nevertheless.

#9 goodman

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Posted 29 December 2018 - 04:23 AM

Thank you, deech.

This restoration was a very good experience with MP3 module.


This boombox is part of my collection:  https://boomboxery.c...ction/?p=364378



Also tagged with one or more of these keywords: Sanyo C30, restoration, modification