2001 Mazda Protoge MP3 input

Once I gutted the box and had just the pcb board left in my hands, it was easy enough to locate the FM module protruding from the main board just behind the antenna plug.
As you can see the module is shielded, which makes it next to impossible to see whats going on behind the board. I say next to impossible because i am weary of de-soldering components just to get a peek back there. When i flipped the board to reveal the connections, it didn’t look much better as there were no clear markings for the different pins of the FM module.
Luckily I could read the markings on the two chips on the FM module and quickly found their data sheets,
Not quite sure what the first chip is for, however the second one seems to have a Demodulation component with a L-Out and R-Out at pins 9 and 10. This sounded very similar to what Jordan has on his radio. So I followed those pins and found out where they connect on the pcb.
(This is the working circuit by Jordan)
So I am happy to say that it works. The volume is a bit low but thats not a big deal other than when i change between the radio and the aux in i have to turn it down first.
The only thing left for me to do now is get some epoxy to secure the jack in the panel because the hot glue i used is complete rubbish.


Thank you Deyan for allowing me to share this. I’m sure it can help someone else out there to enjoy their MP3 collection.

If any one has any questions, concerns or praise to give, please leave a comment below.


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7 responses to “2001 Mazda Protoge MP3 input”

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    25th Sep, 12

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