My upright has been sitting without and video for about 5 years now. When I first got it about a year before then it had some monitor issues so I capped the monitor and HV unit and replaced all the bottle caps. I also checked all the fuses with a DMM, unseated, cleaned and replaced all chips, bought a new interconnect cable from Spaeth, reflowed the solder joints on the monitor and interconnect cable pins and tried as best as possible to clean the pcb edge connectors and at the time this was about the extent of my electronics know how and abilities. After all that game worked fine. As time went on though once in a while the images on the screen would get a little flaky or sometimes go blank completely so I would reach in the coin door and give a shake/wiggle on the boards and connectors and that would solve the issue. This went on for a while and continued to get worse until one day no matter how much jiggling/adjusting the monitor would not come back on.
I would really like to get this up and running again so I've been searching through the archives here trying to figure out what could be the problem but I'm even more confused now after reading all the threads here? To make matters worse my electronics know-how and abilities have not gotten any better and in fact have regressed since I haven't touched any vids in several years. Things like scoping chips and such is way above my pay grade (I think). That all said here is the current state of affairs:
-the game plays blind (it always has)
-the red LEDs are lit on the main, aux and monitor pcb's
-the tube neck glows but no dot in center of screen
-start button LED flashes when powered up
-the two lamps that look like x-mas lights on the monitor pcb are not lit
Here's what I've done recently in my attempt to get the monitor working:
-lifted and reseated any removable chips on the main and aux pcb's again
-metered all fuses in the power block and on the monitor pcb
-cleaned the edge connectors
-tried starting in test mode
-checked several 5V checkpoints on the main and aux boards and they were all good
I did not reflow the header pins as I had done that when I first got the game but will gladly try that again if you think it could help.
Do you know if there is a trouble shooting guide/waterfall that is available to walk the diagnostic steps? Any help/insight would be greatly appreciated.
Thanks
I would really like to get this up and running again so I've been searching through the archives here trying to figure out what could be the problem but I'm even more confused now after reading all the threads here? To make matters worse my electronics know-how and abilities have not gotten any better and in fact have regressed since I haven't touched any vids in several years. Things like scoping chips and such is way above my pay grade (I think). That all said here is the current state of affairs:
-the game plays blind (it always has)
-the red LEDs are lit on the main, aux and monitor pcb's
-the tube neck glows but no dot in center of screen
-start button LED flashes when powered up
-the two lamps that look like x-mas lights on the monitor pcb are not lit
Here's what I've done recently in my attempt to get the monitor working:
-lifted and reseated any removable chips on the main and aux pcb's again
-metered all fuses in the power block and on the monitor pcb
-cleaned the edge connectors
-tried starting in test mode
-checked several 5V checkpoints on the main and aux boards and they were all good
I did not reflow the header pins as I had done that when I first got the game but will gladly try that again if you think it could help.
Do you know if there is a trouble shooting guide/waterfall that is available to walk the diagnostic steps? Any help/insight would be greatly appreciated.
Thanks

