I wonder how you put MC78M05BDTRKG in sega nomad.
Please I ask that you put a picture or photograph of what he did.
I need this information to bring my Sega Nomad for life.
(I am brazilian)
I wonder how you put MC78M05BDTRKG in sega nomad.
Please I ask that you put a picture or photograph of what he did.
I need this information to bring my Sega Nomad for life.
(I am brazilian)
Jb143, you're awesome, my sega nomad is with this problem.
You must have had a lot of work to find and fix the defect.
I ask you please help because I am not able to understand how to weld the voltage regulator (MC78M05BDTRKG or even another)
I will be waiting for your help.
I just wanted to say a massive thanks to jb143 for all the info posted in this thread . Thanks to you my Nomad is now working again! I made a quick video to show how I repaired mine so hopefully others can use it to help fix their own. Details about parts etc are in the video description.
http://www.youtube.com/watch?v=SDo3o2no770
Thanks again, jb143!
Great video! This is an awesome piece of info to have out there.
Hey, thanks for putting together that great video. I tried to take a picture way back then but my old camera was horrible at close up shots. Your video is way better than my blurry pictures ever could be.
"Game programmers are generally lazy individuals. That's right. It's true. Don't let anyone tell you otherwise. Since the dawn of computer games, game programmers have looked for shortcuts to coolness." Kurt Arnlund - Game programmer for Activision, Accolade...
I am hoping—as I know this is a very old post now—I can get some help on my nomad.
After a screen mod like found on nobitleftbehind, my regulator stopped working. I replaced it for a NTE 960 and when the replacement screens driver board is unplugged I get 5v out of the regulator.
This is where things get strange. When I plug in the lcd driver board, the voltage coming out of the regulator dips below 2v and the low batt light shines as if to mock me.
I'm confused, want to save my nomad, and hope someone out there can offer some wisdom.
Thanks in advance.
Last edited by that1crzywhtguy; 07-30-2015 at 12:41 AM. Reason: Update
Can you post a link to the replacement parts you used? The lcd driver may be wired incorrectly or faulty, if you turn on the nomad without the driver board can you hear the game playing?
A photo of your setup would help too
Last edited by phreak97; 07-30-2015 at 07:35 AM. Reason: Update
Regulator: http://www.alliedelec.com/nte-electr...e960/70215297/
Screen found here: https://nobitleftbehind.wordpress.com/store/ and is just like this: http://pages.ebay.com/link/?nav=item...572849&alt=web
I have had the speakers unplugged while I've been testing. When I get home tonight I will try to power up with the driver unplugged and see if I hear audio.
I am including some pictures as well. Thanks for the help.
https://app.box.com/s/yiytjs1mvij2ay8vv59j8nvw9olbpfjo
https://app.box.com/s/206bwr9t2fvnu9ah9fdwgc26qvfxk9hx
https://app.box.com/s/2rlak303l1v5pzvyimrp6v6ihirjiu78
https://app.box.com/s/goqxvbsmjcl4655uc2we2kvc40gfxwut
Thanks!
Last edited by that1crzywhtguy; 07-30-2015 at 03:38 PM.
Alright, what's the red jumper wire on the driver board doing?
I think the driver board is expecting 12vdc, you might need to rework it a bit to accept 5v instead.
What's going on with that voltage regulator?
The 7805 looking one? I only see 2 wires going to it
The centre pin is soldered to ground on the pcb.
Sounds like theres a problem with the driver board for sure. Triple check the dc-dc bypass
I think that jumper was done poorly maybe, (I purchased it pre jumpered) as when I desoldered it and resoldered it, now the system works (I can hear the speaker playing game audio and the board is receiving ~5V) with the driver board still plugged in. The screen still does not function however. I'm thinking maybe something shorted out, which is a little surprising since it did work initially, however it certainly isn't working now.
Another thing that I find peculiar, is that when I plug the av out through a genesis 2 RF cable and switch the nomad on, the TV goes black. No more white fuzz but also no game sound or display, also I still hear the nomad speaker playing audio. This make any sense?
Thanks
I noticed the track on the pcb going to the composite video output has been cut, did you do that intentionally?
alas, I did not... I originally had the composite out wire soldered there and the pad got pulled off... I saw others who had done this mod had their's soldered to the pin right above it, so I attached mine there. I didn't think it would effect the nomad's ability to send an AV signal out of that port though, am I wrong? I get no audio or video out of that port.
Last edited by that1crzywhtguy; 07-31-2015 at 12:34 PM.
Darn I was worried about that. Which through hole? I'm including a close-up. Do I solder a jumper from the little hole between the text TP244 and TP241 to the pin?
Thanks
https://app.box.com/s/p5prucd1ylp51kr6izf6cbluqnlxtrxw