MpMan MP-F70 Hardware

I decided to take my player apart to have a look inside, this page tells you what I found :)
Ofcourse I strongly recommend you do not try this, since you might break things and you're definatly voiding warranty ;)

Follow this link if you'd rather go to the MpMan MP-F70 software page.

What did it take to open it?

Well, it's not to hard to open, except there's a tiny spring on the flap of the SD card slot which very easily falls out and gets lost. I only found it back the next day ;)
You just need to loosen the three screws, and carefully pry the front cover off. Note I say -carefully-, brute force is not needed and will break the player!
Both the front and back covers have one corner which has a bigger hook keeping it in place. This corner always needs to go last, when the remainder of the cover is already loose.

What did you find?

Once it's open you'll find two PCB's sandwiched together, with stuff on the outside and inside. I didn't pry the pcb's from eachother since I was affraid I'd really break something. So I'm not sure what components are hidden inbetween. I could make out two chips, a tiny and a large one. I figure the large one is the actual flash memory.
On the outside I found these two chips:

• The main controller chip is a SANYO LC87F5664A Microcontroller, this is a generic controller with USB1.1 port, the .hex files with firmware updates are actually compiled code for this thing.
• The audio driver is a SANYO LA4802 Headphone Stereo Power Amplifier.

Any pictures?

Heck yeah! :)
The total size of the pictures on this page is about 500kb, sorry about that, I got excited ;)

This is the back cover, this is the first part to remove when opening the player. You can see the inside of the 'lock' slider.


This is the front cover, You can see the inside of the volume buttons. The screws here are only to hold the shiny front of the display in place.


Some small parts, in order they're: the screws you need to loosen to open the player, the plug of the USB port, the little flap of the SD port, and the spring which closes the flap and jumps away and hides itself when you open the player. :)




Now the interesting stuff. First the front PCB. You see the display, volume buttons, springs for the battery, the audio driver/amp chip, LCD display, and a revision/date which is kinda cool. :)


And the back PCB, note that this is a seperate PCB! The two are sandwiched together, and connected via a wide connector/bridge between them. Here you can see the SD card slot, the sliding lock switch, and the main controller chip, the heart of the machine.. :)


Time for some extreme closeups! First the audio driver chip, the LA4802.


Next up the beating heart of the player, the LC87F5664A Microcontroller.


And finally a closup of the revision info, this is the version of mine. :)



Hope you enjoyed that! If anyone ever makes any pics of the inside of the PCB's I'd love to have copy of those pictures ;) But I wouldn't recommend anyone prying the PCB's apart really, don't know what kind of connector it is, how firm it is, and too many tiny components around to damage. :)

Follow this link to return to the software page.