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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...

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...

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...

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...

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...

Guerilla War - only 1 LED lights, garbled frozen screen - PCB or PowerSupply problem? Hi, I have got a Guerilla War PCB, which seems to be not working OK. At startup I get only garbled frozen screen (I can do a photo if helps). No self test, just that random background graphics pieces pattern...

Arcade regions (Europe, USA, Japan, etc.) and licenses explanation Hi, please, can you give me some explanation about the Arcade regions (Europe, USA, Japan, etc.) and regional licensess? When (which year) did the arcade region licence differentation (separate version/licence for Japan...

Hi, please, I am an arcade novice and I just want to make sure about the JAMMA standard audio output. If I understand it correct, the JAMMA audio pins have already amplified signal and there should be connected a speaker directly to it without any other amplifier. Is it correct and is this true...

Hi, please, is it possible to get somewhere only the 5 PIN JAMMA arcade monitor connectors (R,G,B,Sync,Ground)? What is the certain name/model type of that 5 PIN connector? Looks similar to molex. Thanks very much.

Please, can you name and recommend some interesting (preferably historical) books about the arcades and videogames? Thanks a lot for your tips

please, are there some historical arcade videogames price lists? I mean how much did certain new videogame kit/cabinet cost back in the day. I found only very little information about this topic. I think that a common cabinet was something like 2-3k bucks. Is it correct? How much did usually a...

Hi, I am pretty amazed with the tech. specs of some arcade machines. For sure, there were also some home technologies used in arcades - Playchoice, Megatech, etc. Also, not all machines were oriented at state of art technology (some types of games did not need it at all, and some manufacturers...

Hi, I have quite big headaches about proper PCB handling. :-) Please, can you give some general advices for this topic? a) how to hold the PCB in your hands properly? I think, that the best way is to hold it in both hands by the external board edges, is that right? b) When you want to...

Vigilante on TV - constant picture roll-up problem - maybe the vsync? please help Hi, please, do you have some experience with picture rolling up (or say jumping) problem when running a PCB on a TV? I connected my Vigilante JAMMA PCB to the older 72" PAL CRT TV trough the RGB SCART connector...