Pulled the pinout for the PSP Slim serial from PS2DEV mirror as it PS2DEV is dead.
http://lukasz.dk/mirror/forums.ps2dev.o ... c1c0d.html
Took some time to find. But on the acidmod.com forum it says 50k component to GND yet one user there measured 42k to GND so im assuming you you could remove the PSP slim proprietary connector and connect the:
(3) Cable detect input ( 42k to gnd= component cable present )
(15) Enable Component Video Out
(Resistance 50k to GND)/ (or possibly 42k to GND)
Enable Composite/S-video Video Out
(Resistance 5,5k to GND)
by just soldering the correct wire i bet they use the same resistance settings.
other than that im also guessing that you would study each connector and find and the correct pins to solder to correct cable wire by cable wire.
Maybe this will help someone.
Here's the post from the PS2DEV mirror:
Well after much research i can confirm the following pi-out for a PSP SLIM remote connector
1 2 3 4 5 6
7 8 9 10 11 12
LOOKING AT THE PSP REMOTE PLUG FROM THE TOP, REMOVED FROM PSP,
2) +vs ( this behaves as a psp phat, ie see all other threads for sce remote device power behaviour )
3) Cable detect input ( 42k to gnd= component cable present )
4) remote detect line ( cts )
7) Mic input
9) Dgnd ( Agnd in Comp Cable mode )
10 ) Y
Have confirmed the remot pins cos have stable comms to the psp from a pc.
Note some comp cables have dc blocking caps on the component lines so prvent buzzing through, but ripped mine appart to check !!, all have the 42k to earth to signal their presenc