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  1. How fragile are the PCBs generally?

    thanks for the information. so the older 80ties boards seems to not be as ESD sensitive as the late 90ties, right? The ESD is most dangerous/often in direct physical contact (by touching the chips by hand when you are charged) or without direct contact (transfered by air in certain distance)? I...
  2. Is it me or there was an boom in pcb prices on ebay?

    Hi, I think the same, but probably its not just current state, but it lasts and rises some 2-3 years or not? Maybe thanks to all the retro articles and hype on the web there are many newcommer collectors rising the demand :-)
  3. What is considered "extreme" temperature for videogame cartridge or PCB

    What is considered "extreme" temperature for videogame cartridge or PCB I am wondering, what is generally considered to be an "extreme" temperature for a videogame cartridge or PCB. There is often a warning to protect it from extreme temperatures. Its well known, that high temperatures...
  4. Big bold sprites and "16-bit graphics"

    thanks for information, thats interesting
  5. Big bold sprites and "16-bit graphics"

    Thanks for information. I think, that if the system is strong enough to offer very many smaller sprites (16, 32 pixel) and link them together, then its fine. The objects will be big and bold. From a gamer viewpoint it does not matter too much.
  6. Big bold sprites and "16-bit graphics"

    thanks very much for that great tips. I forgot, I was thinking of 64pixel big sprites at a standard resolution, so approx. 1/5 of screen size. But it seems that the typical "16-bit look" is probably not only about the sprite size. The color pallete (at least 4 bit/16 colors per sprite or tile)...
  7. Big bold sprites and "16-bit graphics"

    hi, I am wondering when did the "big and bold" sprites first time appear... I think, that a big sprite means something like 64 x 64 pixels and more to me. Games of the early 80ties had mostly smaller sprites. When did the "16-bit quality" graphics appear? I dont mean a 16bit color depth, but...
  8. Arcade and home technology

    I understand, but wait, the Atari 2600 wasnt the best what they offered back in the day, there was much better graphics and sound on the 400/800 series computers from 1979. It was considered nearly identical to arcade (well, at least close to arcade).
  9. Arcade and home technology

    Yes, Sega Genesis promised to bring the arcade experience home and they really did it. Well from todays view, it could not exactly cope with some high-tech arcade machines with hardware scaling, colors, etc., but at least at the first sight this was arcade-like graphics and sound back in the day.
  10. Streets of rage COIN-OP

    sorry for reviving such an old topic :-D, but I am really interested in.:-) IMHO there was no "special" arcade version of Streets of rage made in 1989. IMHO there was just the Megadrive/Genesis version adapted for coin-op usage in Megatech/Megaplay hardware made (anyway not before 1990/91).
  11. Arcade and home technology

    Yes, its also mine opinion. Home consoles offered the (almost, at least at first sight) arcade perfect conversion at the time of Playstation and Saturn. Before this, the arcade games conversions were rarely "arcade perfect" and often it was almost 1 computer generation behind. I mean there were...
  12. Arcade regions (Europe, USA, Japan, etc.) and licenses explanation

    cade regions (Europe, USA, Japan, etc.) and licenses explanation Hi, please, nobody has any information on this topic (arcade regions and regional licences explanation)? Thanks very much.
  13. ESD vs home console carts, is storage in plastic boxes dangerous?

    thanks a lot. So it seems that the cased home console cartridges are usually much more resistant than a plain PCB. Probably except the Microvision carts - I red somewhere they were very ESD sensitive. When was I a child, I also did not care very much about such things. Unfortunatelly, the more...
  14. ESD vs home console carts, is storage in plastic boxes dangerous?

    ESD vs home console carts, is storage in plastic boxes dangerous? Hi, please, I am wondering how much is the ESD (Static electricity) dangerous for the home console cartridges (like SNES and Genesis). I store my carts in closeable plastic boxes. I always try to discharge the box before putting...
  15. GWAR GFX problem

    Thanks very much. You are probably right. I also forgot, that at startup are probably ony main/basic CPUA and CPUB RAM and ROM tested. And its too fast to be precise. Not the whole (sprite/tile) ROM.
  16. GWAR GFX problem

    Hi and thanks. I renewed the broken connection I pictured, but the problem still remains :-) The RAMs and ROMs are tested at the startup and it shows RAM OK, RAM OK. I did not yet another test. Is it not reliable enough test? I am not sure, how does the boards memory test works - it runs in 1-2...
  17. GWAR GFX problem

    Hi, thanks very much. I did just a basic visual check and found this - one of the PCB trough hole connection seem to be missing. I did not yet the continuity check with multimeter, but I hope this can be the problem. Can it be so easy? :-)
  18. GWAR GFX problem

    Hi, please, any idea what can cause this problem? ;-) the title screen has some line-like bugs, during gameplay, some sprites are OK, but bullets also have line like bugs. Interesting is, that the player looks OK, tank looks OK, but when he get in tank, it has linelike artefacts. Probably only...
  19. 6 V on PS, but only 4,8 V on the harness, can I still safely rise the voltage?

    Thanks, well, of course I will check the harness connection. But I tought, that some voltage loss on the harness (compared to the voltage measured directly on PowerSupply) is normal and depends (IMHO) on the power requirements of the PCB. The more PCB requires, the bigger voltage drop on...
  20. 6 V on PS, but only 4,8 V on the harness, can I still safely rise the voltage?

    6 V on PS, but only 4,8 V on the harness, can I still safely rise the voltage? Please, when I have already increased the 5V voltage to over 6 V on the power supply, the voltage on the harness rose from 4,3 V to approx. 4,8 V. But the PCB is still not working properly (and it probably needs more...
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