Star Wars
Data East, 1992There have been 5 images uploaded to this topic. (View topic image gallery).
My DESW stopped on me suddenly last week with no power. I looked in the power box and resoldered a broken ground wire and replaced the power switch and still nothing. 8A fuse checks out with a meter. I'm also getting nothing from the service outlet either. Help!
Verify your power cord is good up to the transformer and switch. If not sure where they are at, follow the power cord in the machine, and use a meter to check hot, neutral, and ground from the plug to the machine. Also, verify there is high (infinite) resistance between each of these.
Quoted from t2:
How about the thermistor?
How would I check that? The connection reaches all the way through to the connector. Would I test that differently?
Quoted from PinballManiac40:
I had found a bad power cord on my JP project game recently.
I tested continuity on each end and found it. Could not see any reason for it as there were no kinks in the cord anywhere. I also found another cord bad on a different DE game for someone else.
Quoted from Billc479:
OK - I'm a bit confused. Did you use a meter to check continuity of the power cord, or just do a visual inspection? AC power does not have a "positive".
Sorry - I'm still pretty new to electronics. I tested all 3 leads from the end of the power cord that plugs into the wall, through the power box, and all checked out for continuity through to the connector at the transformer.
OK - you have verified the power cord is good, so unless there's something really screwed up with the wiring, you should be able to plug in the machine, (Verify there's power at the outlet first), remove F8, then plug something into the service outlet and verify you have power there. If you don't have power, then there's something wrong with the wiring.
BTW - the schematics can be found at IPDB.org Just look up Data East Star Wars and find the schematic.
OK - you have verified the power cord is good, so unless there's something really screwed up with the wiring, you should be able to plug in the machine, (Verify there's power at the outlet first), remove F8, then plug something into the service outlet and verify you have power there. If you don't have power, then there's something wrong with the wiring.
Thank you. I will try this when I get home this evening.
When you say you did not get power to the game, I assume you installed a verified good F8 fuse. If so, then the next option is the line filter and/or the thermistor is bad. I assume you already checked the on/off switch.
Is the thermistor burned? They are usually a bright red color. I'm not sure how to check the line filter, there might be other threads here that can help. But, since we've eliminated the power cord and fuse, those are the only two devices left that would keep the machine from getting power.
Keep us informed.
Good deal - so you're working now. I was concerned about how you got shocked. I couldn't see how it was possible unless something was really screwed up or you touched where nobody normally touches.
When I had everything open, I left the switch ungrounded and accidentally touched both leads with my finger while trying to turn the game back off. Sent a good one up my arm!
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Fultondale, AL