Just wondering. I keep reading that I should re-use the LED that came with the DTV and use it as a regulator for the supplied 5v input. However -- I am feeding my DTV with plain 5v from the USB from a PC and have never had any problems with this.
Can someone let me know why this works nice -- and why I should keep the LED when both solutions seems to work fine.
I just received a DTV2 (to hack) from UK and noticed the following: 1. That the negative wire is the one being switched. I was testing it (to combine) to a display unit so I used a common 5V from the host circuit..wired the neg (-) AND connected the composite out (both cvbs and gnd)...this is when I noticed that I cannot switch it off. I took out the GND wire from my Video out and is now OK. 2. Compared to the hummer (am I imagining?) but the Regulator seems HOT TER during operation. I am thinking of replacing it with a much higher rated regulator. 3. I read somewhere that the LED circuit drains whatever voltage is left when it is switched off.