Tutorial: Speaker Mod for the PSPCredits to mootoo for the tutorial for the PSP Phat. I'm such a bum until he noted me to credit first. Teehee..
https://www.acidmods.com/forum/index.php?topic=19329.0and thanks to folklord36 for the pin on the headphone jack explanation. 
https://www.acidmods.com/forum/index.php?topic=22014.msg166854#msg166854sorry for the bad quality eh.
Speaker used:
Sony Ericsson MPS-70 Portable Phone Speakersit really booms the sound, but drains your battery like a vampire.
will post a mini tut shortly after i disassemble it. Last night I've conducted a little experiment. leaving your psp switched off throughout the night consumes 7% of the battery. this is because the speaker is directly connected to the battery and grounded. meaning it keeps discharging the battery though turned off. you can place a switch to cut it off at the ground point, or you can find an alternate 3.6V point on the mobo that has current only when you turn it on. but i dont know where it is. T_TDo note though that I only did this mod. How you wanna customize it, place it, modify it, is fully up to you. I got no resource to make a new backplate to house the newly placed speakers, that's why its sticking out like that.now, lets get started shall we?.
items:
a Sony Ericsson
MPS-70 Speakers
a meter of different coloured
30gauge kynar* wires (depends, if you dont wanna color code, you can use only one color)
a soldering kit consisting of
soldering iron,
solder,
soldering paste (flux), a
damp cloth (to wipe off the bit of the soldering iron.makes the soldering process cleaner without black carbons)
tweezers if you have a hard time handling small parts
wire
cutter, wire crocodile
pliers a
solder wick if you got any
and of course, a psp. haha :lol:
*30 gauge is the size of the wire.please follow the exact steps in this tut as you can possibly damage your psp
permanently.
Warning, massive pict bomb.The speaker part.first of all, you wanna strip the speakers naked first. to do this, pry along the area.
and then continue to unscrew the visible screws in there. should be no problem at all.
these will be the internals of the speakers
that little circuit beside it is indeed the amp circuit for the speakers. that means you dont need to buld one from scratch like the soundmod. :nod: moreover, it uses 3.6V, just like the psp. it eases the process as you dont need to do any calculations to make it work.
after disassembly, desolder the wires that goes to the phone jack. (that part where you stick into the cellphone. )
a closer look at the circuit.
the points from left to right:
+, -, C, L, R, RAnote the
C and
RA? well, me and the guys failed to register the use of it. so we concluded its a Sony Ericsson exclusive point. no need to solder them.
the
+ should be the
+3.6V and is the power in for the amp. the
- is the
ground.
L and
R are obviously the input for the amp.
the
L+, L- and
R+, L- are the pins for the speaker output. cut off the wire from the speakers. it eases the fitting.
now, that should clear the speaker part. moving on to the psp part.
The psp part.dissassemble the psp, this guide might help:
PSP Slim Dissassebly Guide.please make sure you've read and fully understood the process. a wandering mind can really screw things up.in order to give way to the speakers, the umd reader have to be taken out. i dont think it will be much problem as you guys must've tons of .iso games.
also, holes must be drilled on the umd door to locate the speakers.
the
amp will be placed under the
d-pad, at the left side of the backplate. there is
ample space under the mem stick reader, and coincidentally, the amp doesnt bother the mem stick reader at all. just enough space.
cut off the
minor supports in that area.
drill a hole on the wall beside it to route the wires to the speaker outside. this should do the trick
Soldering the amp to the motherboard.take the
headphone jack fom the psp, and
short the pin
3 and
4. shorting them tricks the psp that there is a headphone jacked in. you
can add a switch there to enable on/off functions. but too bad i got none now.
the
1 pin is the
Left input, and the
2 pin is the
Right input. solder them to the
L and
R pins on the
speaker amp.
connect the
+ pin on the amp to the
battery connector on the psp motherboard.
make sure you solder it to the
lower pin on the right connector.
*make sure u dont over use the solder and cause it to touch the other tiny components. that'll be bad*
connect the - pin on the amp to a
ground point on the motherboard. now, there are a few ground points on the motherboard also the headphone jack board. but in this case, i soldered them to the motherboard's ground point, easier.
after all that had done, place them orderly in the space we've cleared.
a pict might help.
remember to
insulate the exposed circuit from the mem stick cage. they
might short out. for low voltage electronics like this, a simple masking tape is enough. but for safe, use an insulating tape.
note how clean the wires are?. it may take some time for you to tidy up. but trust me, its worth it.
run the speaker wires out the hole in the wall we made earlier to the umd slot, and solder the speakers respectively to their connectors.
After all that is done, reassemble the psp carefully. try not to break anything in the process.
test the speaker.
done.
***addedremade the cage for the speakers using the stock case for the speakers. gotta trim off some areas to fit it in and the great thing is it can close properly now.
though just supported by some double sided foam, it can close well and less 'ghetto' looking. haha. now im looking for fiber putties to remould the new plate.
hey anyone know where they sell those?
