C clarky Active Member Aug 9, 2010 #1 So finally my new screen turned up. So first things first, I hooked it up to my 7.4v battery and plugged into my n64........nothing!!! Took the screen out to the car to test on 12v, turns on fine. How do you guys get these dam screens to work on such a low voltage?
So finally my new screen turned up. So first things first, I hooked it up to my 7.4v battery and plugged into my n64........nothing!!! Took the screen out to the car to test on 12v, turns on fine. How do you guys get these dam screens to work on such a low voltage?
bentomo Frequent Poster Aug 9, 2010 #2 Check to make sure you have high enough amperage on the power supply, mine ran on 3 volts, but I think it drew about 500mA.
Check to make sure you have high enough amperage on the power supply, mine ran on 3 volts, but I think it drew about 500mA.
C clarky Active Member Aug 9, 2010 #3 The battery says its a 7.4v 5700mah li-po I would have thought that this would be enough :s
bentomo Frequent Poster Aug 9, 2010 #4 That should be enough, is it charged, it might just be your battery isn't working, check with a multimeter to see if you're getting power.
That should be enough, is it charged, it might just be your battery isn't working, check with a multimeter to see if you're getting power.
C clarky Active Member Aug 9, 2010 #5 Its reading 7v so its powered. I know theres different board variations for this screen and other 3.5" on ebay. I seem to always be getting the ones that wont power from anything under 12v
Its reading 7v so its powered. I know theres different board variations for this screen and other 3.5" on ebay. I seem to always be getting the ones that wont power from anything under 12v
R R00man Active Member Aug 9, 2010 #6 wait so the battery reads 7.0v on a multimeter give it a charge and try again. The screen is capable of running off lower voltages than 12v.
wait so the battery reads 7.0v on a multimeter give it a charge and try again. The screen is capable of running off lower voltages than 12v.
XCVG ModRetro Legend Aug 9, 2010 #7 7V for a 2-cell lithium battery is almost discharged. Fully charged, it will be around 8.4V.
C clarky Active Member Aug 10, 2010 #8 I'll give it a charge and see if that makes any difference. If not then someone suggested to use a ti step up regulator PTN04050C with a 7805 in line to provide the regulator with 5v.
I'll give it a charge and see if that makes any difference. If not then someone suggested to use a ti step up regulator PTN04050C with a 7805 in line to provide the regulator with 5v.
lyberty5 Well-Known Member Aug 10, 2010 #9 I thought you had to bypass a regulator in the screen to power it under 9V
