John's Arcade Forum - Classic Arcade and Pinball Collecting and Restoring Discussion Forum - RETRO MAME - Nintendo Vs Forum

Tech and Marketplace => I need help with my game! - Technical Discussion => Topic started by: jessiewonka on March 21, 2015, 07:07:01 pm



Title: Strikers 1945 missing sprites
Post by: jessiewonka on March 21, 2015, 07:07:01 pm
Just received this board in the mail, which looks in good condition, and sold as 100% working. I tried reseating roms but nothing helps, it just stays like this.

(http://jessiejohnson.net/arcade/strikers-1945/IMG_5243.jpg)
(http://jessiejohnson.net/arcade/strikers-1945/IMG_5245.jpg)
(http://jessiejohnson.net/arcade/strikers-1945/IMG_5246.jpg)
(http://jessiejohnson.net/arcade/strikers-1945/IMG_5247.jpg)
(http://jessiejohnson.net/arcade/strikers-1945/IMG_5248.jpg)
(http://jessiejohnson.net/arcade/strikers-1945/IMG_5249.jpg)


Title: Re: Strikers 1945 missing sprites
Post by: jessiewonka on March 21, 2015, 07:36:11 pm
I think I found the culprit -- when I apply pressure to this chip all is well.

(http://jessiejohnson.net/arcade/strikers-1945/IMG_5250.jpg)


Title: Re: Strikers 1945 missing sprites
Post by: jessiewonka on March 21, 2015, 07:50:59 pm
I think it's just a cold solder joint, if I bridge the very corner of the chip leg it's fine every time.

(http://jessiejohnson.net/arcade/strikers-1945/IMG_5253.jpg)


Title: Re: Strikers 1945 missing sprites
Post by: tombutler on March 22, 2015, 10:24:06 am
Looks like you figured it out. 

Great choice on a game tho.  It is one of my fave shooters


Title: Re: Strikers 1945 missing sprites
Post by: jessiewonka on March 22, 2015, 01:15:44 pm
Well we'll see how I do, next to no soldering experience, and just ordered my first gun. Can't be too hard right! : )


Title: Re: Strikers 1945 missing sprites
Post by: iankellogg on March 22, 2015, 03:38:41 pm
good find!!! surface mount chips can be a real pain to solder. Be very careful and inspect your work afterwards.


Title: Re: Strikers 1945 missing sprites
Post by: jessiewonka on March 26, 2015, 03:03:26 am
Fixed!

(http://jessiejohnson.net/arcade/strikers-1945/strikers-fixed.jpg)

Honestly if it weren't for John this wouldn't have gone so smoothly, from narrowing down the problem to basic soldering. Thanks man!


Title: Re: Strikers 1945 missing sprites
Post by: offset on March 26, 2015, 09:51:01 am
Great work!