superzaxxon, screen is full of garbage when turned on

elnuno71

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superzaxxon, screen is full of garbage when turned on

Got this superzaxxon 3 weeks ago, it was fine until one day the screen was full of random garbage on screen, reseated chips and dc is at 5.3 on the board. Has anybody seen this before.
 
i have seen that plenty of times, ur board is trying to boot up then gets stuck. you can try to replace some of the main chips, dont recall if zaxxon has a z-80. but besides that you can send it out to be repaired..eldoorado games does pretty good work. or some guys in the forum are good too.
 
just remembered, there is a red test button on zaxxon boards. you can try pressing that to get into test mode.ts worth a try if you didnt try it yet
 
I had a similar expierience with a Zaxxon PCB (which is the same IIRC). 2 of the smaller chips are notorious for dirty legs. I cleaned them up with no difference.... at first. A few days later the board decided to start working.
 
thanks.. i appreciate that.. ill try that. luckily when i got the game the guy threw in a regular zaxxon board too.. I noticed those two smaller chips they had a coat of black on the legs but just resat them but ill clean them too.. thanks guys.
 
For me, booting errors are always gremlins - I've been lucky. A little cleaning, futzing, squeezing connections tight, and they disappear. Good luck!
 
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