Space invaders Deluxe

necroscope

New member
Joined
Sep 3, 2011
Messages
97
Reaction score
0
Location
romsey, victoria, Australia
Need some help with a space invaders deluxe pcb,It boots up and i get a picture with midway and player1 and 2 scores and credit 0A seems to be missing all the sprites,and i cant coin up and play blind,have just replaced all the ram and all the tantulam caps around the ram have tested fine and verified the roms with romident and the sound board has been tested at a freinds place with his pcb and was working,any help on where to start on the motherboard would be great,thanks.
 
Whoa...you replaced ALL the rams? Double-triple, then quadruple check your soldering to make sure there's no solder bridges. Thats a lot of not-very-fun soldering involved and even I have to triple check my work whenever I replace those. Very easy to make bridges the way the traces are laid out.
 
Your not wrong mate,seemed like it took an age too,and it seemed like every pin on this deluxe board was bent before being soldered in talk about a PIA to remove,will double check my work tonite after work,thanks for the suggestion.
 
Thanks heaps for the advice Orlon,re-checked my work and sure enough i found 3 bridged tracks all up,guess i must have lost some concentration when putting the sockets in.Anyway thank god it is working and i hope i never have to socket the ram on another spacies pcb ever.
 
Back
Top Bottom