I set up a remote control type in the system settings set to NEC the remote control below I set-top box can not be used to guide the setting does not have the key channel key can not use keys set good.
You go to the system settings, the remote control type to all, and then click OK, the system settings password is 4321, nothing, do not go to the system settings inside chaos.
At the same time, press and hold the settings key and number 2, switch to the RC5 protocol, or press the settings key and the number key 1 at the same time, switch to the PZ-OCN protocol. Since you don't know which protocol your set-top box belongs to, try the two one.
Maybe the board is broken. Change it, and it's cheaper
