WG6100 Star Wars weirdness

voltron88x

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Just got my monitor back from Chad E. and I emailed him about it, but I know sometimes it takes him a little time to get back via email. So to satisfy my instant gratification itch I'm trying the board also :) FYI, the game plays blind.
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I installed everything back together and fired it up last night, but got some weird activity. Here's a video on youtube that I took of it. It should be just the regular attract mode here.

http://www.youtube.com/watch?v=LTxmmj4CWdo

Now I probably have messed something up on the reinstall, or need to adjust a setting, so I was hoping you may have some insight or advice.

Thanks!
 
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The boardset is having some kind of error, and constantly resetting itself. Can be a power supply problem, or a bad chip on the motherboard.
 
Hi - picked most of this info up in the last week since i am having some SW issues on my upright (unrelated to what you may be having).

There are two distinctly different measures the SW will take to protect itself - Watchdog or Spot Killer.

Watchdog is a hard reset by the CPU when something is wrong on the ROM set.

Spot killer is a different measure taken to protect the monitor. It shuts down the "Z amp" (the part responsible for drawing the X / Y to the right point on the monitor). This shuts down if the X / Y circuits go bad enough to move the light around - protective enough so that the X /Y doesnt burn you monitor out! It could be caused by the logic board having an issue too - since that also drives Z Amp positioning.

Which one is it? Looks like a Spot killer - since it draws the XY dot it seems, and the Z doesnt seem to position, which leads to the spot killer - find the spot killer light on the monitor PCB (i have an Amplifone - its on the amp deflection board - C23 i think - near the center of the board). If that is on, then you have a monitor issue (clearly!) - but the game is not watchdogging so at least you know what direction to go in to research it.

When you go into test mode, do you hear anything (the diagnostic beeps?)? High or Low tones?

I guess if its a Spot killer (IF), see if you get proper voltage at the X / Y outputs (thats my newb take on it).
 
Ok - well, first - let me correct my post!

Spot killer can be caused by Watchdog - for example on my SW this week, a have a bad chip, watchdog kicks in and kicks off the spot killer. So spot killer can be independent of Watchdog (meaning - you have no main PCB issue - good - you dont need to troubleshoot that, its something on the monitor side) or its a main PCB issue causing it.

When you get those beeps - it plays 16 times - do you get high tones throughout or high with low mixed in? You want High tones... a low tone means a chip is bad on main PCB.

Another measure i learned - you can turn the brightness all the way up - if you see rasters / dot in the center - then - its most likely something in the monitor rig (connection? Deflection board? HV board?)
 
(besides connection on the monitor rig, issue on the deflection board, or HV board - also low voltages - i would also check the voltages on the main PCB (there are test points there)).

Again, just went through this so, just explaining how i went through it.
 
Well according to the RAM and ROM self-test beeping, I have failures at

RAM 4P(AVG) - Vector RAM 5
&
EPROM 1L (AVG) - Vector ROM, has writing on it "SW 105".

Are these chips replaceable or am I in trouble here :( ?
 
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