Southbury, CT
For some reason, my Black Knight goes through this long sound startup sequence every time it starts up (like 10 minutes long). Does anyone know why it might do this? I created a short video so you can hear what I'm talking about.
(Topic ID: 281812)
Linked Games
Black Knight
Williams, 1980
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Quoted from Shewmanga:That sounds like a meth'd up horror movie soundtrack
Yeah, it's freaky. I recently was trying to take the machine out of "attrack mode" and I'm wondering if there isn't a setting I might have set by accident.
Quoted from klatos:For some reason, my Black Knight goes through this long sound startup sequence every time it starts up (like 10 minutes long). Does anyone know why it might do this? I created a short video so you can hear what I'm talking about.
Sound signal is pulsed in sync with displays alternating:
Suspect a corrupt PIA ic 36
39bc5f6eec5c01af7ce238c3e190637e8075f26d (resized).jpgIf this were mine I would start by replacing the capacitors, header pins, crimp contacts in the header housings and maybe the chip sockets on the sound board(s)
So you press start, it does the noises for 10 minutes, then eventually serves a ball and the game plays fine, or (?)
Quoted from sixpakmopar:If this were mine I would start by replacing the capacitors, header pins, crimp contacts in the header housings and maybe the chip sockets on the sound board(s)
While that's generally a good practice for bulletproofing a game, I don't think that's what is causing the wonky behavior at startup. It seems like it's a logic problem/failure somewhere.
1 month later
Quoted from PINTEC:Sound signal is pulsed in sync with displays alternating:
Suspect a corrupt PIA ic 36 [quoted image]
Does anyone know if they made replacement boards for Black Knight? This is my son's favorite machine. This issue got worse and now it never comes out of this demonic test mode.
Quoted from klatos:I found one place that has replacement boards.
http://pinballpcb.com/products/williams-system-3-thru-7-driver-board/
Has anyone bought from them before and used their replacement boards?
Yes, these are the best replacement system 3-7 boards on the market IMO. First choice to go to if I need a set.
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