VuDuo Front panel board connector U711 information.

Information about the front panel motherboard connector U711, can be useful if your receiver refused to turn on.
5VS and Con is the On/Off switch circuit.

An IC on the front panel, must give the 5v voltage (5VS) to the Con psu pin.
If not, then the PSU/Receiver will not turn on, you will only see the red led.

Check the voltage, also check if you have the voltage on the 5vS to Con pin.

Good luck..

Note:
You can also bypass the front panel by bridging the Con with 5vS.
But if you do, do not, and I repeat.. do not.. connect the front panel to the motherboard if you bridge the Con to 5vS.
Because if you do, a chip on the front panel may burn, and you probably damage the mainboard.

But this way you can turn on the motherboard, and see if it works.
But be careful with this, stay with it, and pull the plug out if something goes wrong.

All the best about hardware/support from Johnny_B, link :
http://jb8a8f8.com
http://jb8a8f8.nl