Arcade Collecting > Pinball
VND acting up
LLUncoolJ:
--- Quote from: pinballjim on July 21, 2010, 12:17:50 pm ---No offense, but you're borderline impossible to help.
--- End quote ---
I hate you. I really do.
lilshawn:
:banghead:
the 5 volt runs EVERYTHING computerized on the machine, if the 5 volt is low or the flaking out stuff won't even start up. Should be 4.92 to 5.1 volts DC. If this is below 4.92 volts, the game will most certainly reset easily, as this is the voltage the "reset watchdog" examines. Often the problem is bridge rectifier measure it from various places and see if it is 5 volts. if it's low or zero try replacing the rectifier bridge and the cap for the 5 volt line.
a detailed explanation of how to do that is available at pinrepair.com
LLUncoolJ:
Alright, according to the manual, BRDG 21 (yellow arrow) is the 5 volt bridge rectifier and C203 (green arrow) is the capacitor. Where do I measure the voltage? Keep in mind, I am an extreme novice...do I put a lead on a ground, the other on some point in the pic?
I tried removing and inspecting the connections, same results...unfortunately...I was hoping for the easy fix.
studmuff:
--- Quote from: LLUncoolJ on July 21, 2010, 09:29:25 pm ---Alright, according to the manual, BRDG 21 (yellow arrow) is the 5 volt bridge rectifier and C203 (green arrow) is the capacitor. Where do I measure the voltage? Keep in mind, I am an extreme novice...do I put a lead on a ground, the other on some point in the pic?
I tried removing and inspecting the connections, same results...unfortunately...I was hoping for the easy fix.
--- End quote ---
Hi,
There really isn't a quick fix. But it can probably be an easy fix. I recommend you check out this website and this page:
http://www.pinrepair.com/de/index2.htm#reset
If it's over your head and you don't understand it try to find someone who is a pinhead in your area that can help via Mr Pinball Classifieds or maybe the pinball newsgroup. If you have basic knowledge of pinballs and feel comfortable removing boards and working on them (desoldering and resoldering new parts, you will be ok. My guess is it is either the 5 volt capacitor going bad or one of the bridge Rectifiers. With out the pinrepair guide most of us would be lost. Hope this helps you.
LLUncoolJ:
--- Quote from: studmuff on July 21, 2010, 10:37:17 pm ---There really isn't a quick fix. But it can probably be an easy fix. I recommend you check out this website and this page:
http://www.pinrepair.com/de/index2.htm#reset
If it's over your head and you don't understand it try to find someone who is a pinhead in your area that can help via Mr Pinball Classifieds or maybe the pinball newsgroup. If you have basic knowledge of pinballs and feel comfortable removing boards and working on them (desoldering and resoldering new parts, you will be ok. My guess is it is either the 5 volt capacitor going bad or one of the bridge Rectifiers. With out the pinrepair guide most of us would be lost. Hope this helps you.
--- End quote ---
I looked at this last night. Going by what the guide says, I have to agree that the 5 volt capacitor is the culprit. The symptoms all point to it, specifically the resetting when both flippers are pushed. I think I am up to at least trying to replace it, it doesn't look too daunting. If that fails, I may go the PBJ route and call in the cavalry. Is the capacitor something I can find locally at a Radio Shack or will I have to order it in?
Thanks for the help guys.
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