You're currently viewing posts by Pinsider wayout440.
Click here to go back to viewing the entire thread.
Even if new batteries, check with a DMM or voltmeter to make sure the standby power is getting where it needs to go.
From PinWiki:
The battery voltage is not reaching the 5101 CMOS RAM (check Test Point TP7, which should measure 4.3v with the power on and 3.9v (or so) with the power off.
Blocking Diode D18 (1N5817) has shorted, and the batteries are trying to run the MPU board when the game is off.
Quoted from csdoplr:I checked my 5101 Rom
How did you check this?
Quoted from csdoplr:I am pretty new to all this so I figured if I did the diagnostics test and it said I was good then the 5101 Rom was good. How do I check this?
The only practical way to check the 5101 RAM is install it in a working game.. (not ROM - a ROM is a permanent storage device. RAM is temporary storage. A typical RAM loses memory when power is disconnected. Hence the backup battery circuit.)
If you are going to work on solid state electronics in games, you'll need the DMM/Voltmeter, the knowledge how to use it, some basic electronics theory, some background on the fundamentals of your games specific circuits, and the ability to interpret electronic schematics.
You're currently viewing posts by Pinsider wayout440.
Click here to go back to viewing the entire thread.
Wanna join the discussion? Please sign in to reply to this topic.
Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!
This page was printed from https://pinside.com/pinball/forum/topic/jungle-lord-audit-mode-stuck?tu=wayout440 and we tried optimising it for printing. Some page elements may have been deliberately hidden.
Scan the QR code on the left to jump to the URL this document was printed from.
Berea, OH