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Messages - Cosmic Alien

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1
GENERAL RETRO CHIT CHAT / Re: Retro computing survey
« on: April 30, 2012, 06:23:29 PM »
Done  ;)

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GENERAL RETRO CHIT CHAT / Re: Birmingham Retro-Gaming Nights
« on: April 30, 2012, 06:10:18 PM »
Sounds interesting,i am a retro gamer in West Brom but are not too familiar with Kings Heath, as an ale drinker i have heard of the cricket club though lol

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ARCADE / Re: Gates of Doom / Dark Seal Repair Log
« on: May 26, 2011, 03:35:29 PM »
The way you repaired that custom ic was awsome  8)

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ARCADE / Re: Ironman Ivan Stewart's Super Off Road-no Sync
« on: May 12, 2011, 12:06:43 PM »
Hi Porchy
Sorry i should of mentioned this i know,i do appear to have what i see as strong sync signals on both H/V sync and i do have a copy of the manual,as i purchased this in a joblot it it quite possible to be faulty but then again being a somewhat dedicated board it may of been salvaged from a wrecked cab or just lost favour with an arcade owner and the pcb dumped in a box.
I will run both H/V signals through a 74LS04 and then into the 7408 and i will take it from there and let you know,although can i not just invert the combined signal using the 7404 after the 7408? or should i invert both signals before they are combined?,i will prob try all ways anyway  ;D
I have a Gladiator board on the test rig at the moment so when i have dealt with this i will swifty retrun to looking at offroad.

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ARCADE / Ironman Ivan Stewart's Super Off Road-no Sync
« on: May 10, 2011, 08:04:23 PM »
Hi all
I have on my test rig a Super Off Road pcb and have been making a Jamma adaptor but i notice it uses Cinemat System and the H/V sync signals are separate,can anyone tell me the best way of converting these signals to comp sync for Jamma,i have tried combining both signals in to a 74LS08 without success.
Someone has told me i may need to invert the signals with this system,can anybody confirm this?
thanks -Steve.

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Hi Everyone
I am Steve from the West Midlands in the UK,although i do play the odd recent game i am 90% a retro gamer and have been gaming in one form or another since 1983.My heart lies with my first systems- Atari 2600,Zx Speccy and arcade games of course and i enjoy playing retro games upto the Jag/Dreamcast era and i am a member of 20+ retro gaming and arcade collecting forums.
I own 6 u/r arcade cabs and a somewhat battered HotRace Cocktail but despite having some qualifications in electronics but my knowledge in arcade board repair is average to below so i may be asking a few questions no doubt. ::)
regrds Steve

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