Re: Major Havoc - No video

I haven't traced your symptoms, but I would suggest running through the Tempest troubleshooting guide (the html version online). Since the game plays blind, that means the AVG isn't hanging on you.. That might be a good sign. If you replaced all of those chips, I would double check your soldering to make sure you hit the traces on top of the board. I would also suggest checking your power supply. When big blue's die, they do some weird things. Check all of your voltages w/ a scope if you can and see if they are clean. etc. etc. etc.

Good Luck :)

Jon

At 11:40 PM 1/31/2001 -0500, you wrote:

>Hello folks,
>
> Got a new Major Havoc problem. No video - even in test mode. Game plays blind. When I turn up the brightness on the monitor, I see a red line that kind of looks like an L and seems to change a bit, but not much. Spot killer is on though under normal monitor conditions. Replaced about 85% of the chips on the board (including every chip in the to Video out section I mean 6012s, TL084s, 13201s, 082, all of them - with known working chips). The only chips on the board I didn't replace are some in the rows 5,4,3, 2, and 1 - higher than H. But according to the schematics, it looks like those are responsible for the actual code execution and that seems to be working fine since the game plays - but blind.
>
> I am out of moves. I don't know what to do next. I know the monitor works - tested with other board. The chips I used to replace were from a "new" stock - randomly tested in a working board - they work. ROMS, RAMS, CPUs, Pokeys, and AVG chips all known working - were tested in another board.
>
> At this point I am at a loss. Any help would be greatly appreciated.
>
>Thanks
>Andy
>
>Andrew Evrovski
>HPC Development Director
>Cyberplex
>t: 902.429.4721 ext.109
>f: 902.423.0899
>www.cyberplex.com

---------------------------------------------------------------------------
** To UNSUBSCRIBE from vectorlist, send a message with "UNSUBSCRIBE" in the
** message body to vectorlist-request@synthcom.com. Please direct other
** questions, comments, or problems to neil@synthcom.com.
Received on Thu Feb 1 08:05:35 2001