Extra Control Port:
Extra control port:
This interface has released a lot of hidden functions, so the 3rd party can use it
for various usages.
The Extra control port close to the power connector
1
the 4-pin in the up row touch screen 4Pin input, when in DVD or TV,
the touch foil can be switched and connected to these 4Pin, so the
controller inside can read the touch operation and location and
generate the IR code for DVD etc.
2
the 5
th
Pin(TXD2Navi) the input pin to take external control data for
internal navi, to replace the touch control
3
the 6
th
Pin (TXD.Status) the interface tells the outside its internal
status.
4
the 7
th
Pin
5V_SW
: this pin can output 5V with 1A max, which is
enough for a relay pull, when in inserted video this pin=5V, when in
OEM video, this pin=0V.
5
the 8
th
Pin
5V_AV1/2
this pin can output 5V with 1A max, which is
enough for a relay pull, when in AV1/2 video this pin=5V, otherwise
this pin=0V. it can be used to switch the 4Pin touch so one touch foil is
shared by navi, and DVD/TV.
The 5
th
pin in the Video input port (RXD.Term)
This interface can work in terminal mode, a 3
rd
developer or installer can send
commands into this pin. E.g. when he sends “switch Input 1\r”, the interface will
switch into RGB navi, “switch Input 2\r”, the interface will switch into AV1, when
he sends “Help\n” the interface will tell a list of available commands. This Pin
works in 11.5K baud rate and it loses all sent commands when drops power.
