TEMPEST PCB all test digits aligned (solved)

[vernimark]

Just for your info.
I bought a Tempest PCB a couple of months ago on ebay us.

Initial conditions:
some 137004-001 missing,
3 not working PROMs on aux board
Vector prom on main board missing

So thanks to ebay and arcadechips I completed the board with missing parts, reprogramming the PROMs when needed...
Once it was completed I had this test screen (not in test the game reset).
In the beginning looking at all of those "0" aligned I thought to a problem related to the bus between program data and vector data

[vernimark]

Then I checked again all EPROMs and I found that one of them had to be replaced. Doing that the pattern during test didn't changed but the game started without any problem, even if the graphic was corrupted

[vernimark]

Getting older and older I have to tell you I need good glasses  to do this job now and actually I think 10 years ago I could repair this board in 3 minutes and not in 3 nights.

Here is the picture of the problem

[vernimark]

Now the game works

[Superully]

Getting older and older I have to tell you I need good glasses  to do this job now

same here - apart from the fact that i couldn't do what you are doing. but my eyesight is getting really bad when it comes to reading / seeing stuff that is close to your eyes. damn it, the human body is one big faulty design!!!

[vernimark]

absolutely true.

[Luigi]

same here - apart from the fact that i couldn't do what you are doing. but my eyesight is getting really bad when it comes to reading / seeing stuff that is close to your eyes. damn it, the human body is one big faulty design!!!

I have the same problem. IMHO the human body isn't a faulty design at all. It's just not designed to last that long. In medieval time with 40 years you were an old man

[Superully]

IMHO the human body isn't a faulty design at all.

you can't eat whatever you want whenever you want - nuff said!

[Andreas_AUT]

Congrats to that repair. How did you fix the broken traces, resoldered it or did it with wires?

[vernimark]

Traces were not broken but shorted, si I used a cutter to remove the undesidered contacts

[Muerto]

Great repair! - happen to have a Tempest myself, that stopped working after 4 hours on Friday 
Hopefully it's just "a fuse" 

[vernimark]

Tempest is a great game. My board stopped working a couple of years ago. I gave it to repair because in that period I hadn't a place where to repair boards but I think it still is on the repair queue. In the mean time I bought another one and repaired on my self