Default [Q] Enabling HDMI on recovery

Hi! I have a chinet tablet with A10 Allwinner CPU. The LCD is broken so I've decided to build and Andrioid TV Box with it.
I've rooted the phone and I am ready to flash Cyanogenmod (also, I've flashed CWM).
The tablet is connected to my Smart TV with the HDMI cable. The problem is that on recovery, there is not HDMI output. Is there a way to enable HDMI on Recovery?

Thanks.