Thread: Kenwood DNX 4230Bt Black Screen

Hi Guys!
We have a DNX-4230Bt head unit. It was working fine until recently. It started with the unit freezing, and power off. I changed the fuse in the car, then it was powered up again, and on the next trip it froze again, and it can't be powered up. The little red led is lit up for 3min, but there is black screen, and nothing works. I tried to reset the unit, with no luck. I can hear the fan working. Yesterday i took it to a local electrician, who checked the voltages, cables in the unit, he says it should work fine, it could be a software issue. After 3minutes, the voltage drops to 0 (i guess because it can not boot up it goes to stand-by).
I've seen a black screen topic here for a DNX7220 unit, but i guess the solution won't work for this one, as its an older unit with different firmware. Do any of you guys have a solution??
Thank you!
Gergely

Hi, did you find out what the problem was? I'm having the same problem with this unit. Thanks

Hi! It's been sent to official distributor in my country. They couldn't solve it, so they sent over to Germany (directly to kenwood). They could not repair as well. I've been told that its some panel issue. So i'm about to buy a plain double din head unit from ebay or somewhere else.

Well, that's not what I wanted to hear. Thank you anyway!