The following section explains how the utilize
the DLYON signal on the P1260 to turn on
or off your +5V Lilli mod. It requires cutting
2 traces on the LilliPCB and soldering a
wire to the P1260 PCB. This should only be
attempted if you have good soldering skills.
Remove your previously modified LilliPCB
and flip it over to the bottom. You are now
going to cut the two traces that connect
Pin5 of the LM2596 to ground. Cut where the
black lines cross the traces. Be careul not
to slip with your knife and cause red blood
drops to appear on your PCB.
Cut another piece of wire (green) about 8
inches. Strip and tin one end and solder
to Pin 5 of the LM2596. Be careful not to
short this pin to ground or your DLYON function
will not work!
Now tie-wrap this new wire into the cable
bundle with the wires from your previous
mod. Keep your work neat so your friends
will be impressed...;)
Now, locate R22 on the P1260 PCB and solder
the other end of the green wire to the TOP
solder pad of R22 (the end closest to the
fan header). These are very small (0805)
surface mount devices. Be careful not to
damage them or their solder joints! Also,
be very careful of shorting your connection
to the adjacent resistor. FYI, the tab of
Q5 is connected to R22, so touching it is
OK.
Re-attach the P1260 PCB to the chassis and
heatsink. You are now ready to roll! The
+5V output will now follow the DLYON signal.
This means that your USB devices will not
receive power until 3 seconds after your
P1260 comes on. The +5V output will also
turn off when you turn off your ignition,
unless you have selected the jumper option
to keep DLYON on during shutdown delay.
Have fun!
