MSI LPX ZX4 User Manual page 27

The mainboard provides two TV-Out Connector: S-Out and AV-Out.
C_Out Y_Out
Comp_Out
GND
GND
AV_Out
S_Out
Note: You need to connect the TV-Out Connector (S-Out or AV-Out)
to your television before turning On the system. In case TV-Out is not
properly connected to the television, only a blank screen will appear.
2-22