Arcade Collecting > Merit/JVL Touchscreen

Megatouch Auto Test

<< < (3/12) > >>

didgey101:
Thanks to your replies im getting somewhere.  Ive just connected a wire between the green wire on the psu and earth and the motherboard and fans all come to life but the screen still says auto test any ideas what I can do now. .thanks

ed12:
hook the video output of the game to a normal lcd and see what u get
this will point u in the right way,have no worries about the touch screen at this point
just leave all else hooked as normal,expect u are putting the video from the board into a normal lcd,no need for spec's at this point as u are olny testing for boot

ed

lilshawn:
can you post a photo of the motherboard here? that way i can tell you where to look and also we can try to spot any problems.

didgey101:
Hi again.  Tried to post a picture but it says its too large so will take another picture later at a lower resolution.  Seeing as the motherboard anf fans come to life when I earth the green wire does that not give us any idea what is wrong?  Thanks. .tim

smartbomb2084:
Motherboard is probably junk if it looks like this...

http://www.ebay.com/itm/Merit-Megatouch-Force-motherboard-board-repair-service-EVO-PCB-/200915844717?pt=LH_DefaultDomain_0&hash=item2ec7847e6d#ht_1495wt_891

When the fans came on was there a RED LED and a GREEN LED lit on the board?  Probably just the RED one was lit.

Also...Gentlemen...Aren't ATX power supplies supposed to run from 90 VAC to 240VAC making them plug and play world wide?  No need for country specific voltages anymore.....

Not a big fan of outright grounding the 'Green' Power Supply Turn-On lead to troubleshoot unless I know the problem is CMOS related.... The system shut down because of a problem and defeating the safety circuit can cause you you even more trouble than you may already have.

Navigation

[0] Message Index

[#] Next page

[*] Previous page

Go to full version