Jungle Lord locks up during attract mode

If reseating the rom chip fixes it, have you tried replacing the socket? If it's original it's pretty much always needed to be replaced. Especially if you've been pulling the rom all the time.

1 week later

#4 6 years ago

ZAC

zacaj

OP
Quoted from Jakers:
Any ideas?

Quoted from zacaj:
If reseating the rom chip fixes it, have you tried replacing the socket? If it's original it's pretty much always needed to be replaced. Especially if you've been pulling the rom all the time.

#6 6 years ago

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zacaj

OP
Quoted from Jakers:
I've only pulled those two chips 3 times. The third time didn't help the situation. I pulled all 4 chips this last time and it didn't help.

If reseating the rom fixed the issue even once, replace the socket.

#10 6 years ago

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zacaj

OP
Quoted from Jakers:
Another thing I recently noticed is that it boots into audit mode every time it's powered on now. Sometimes it takes cycling though 50 twice to get it into attract mode. Once in attract mode, the light show and attract sounds work fine, but once you push the start button it goes crazy as mentioned in the post above this one. The batteries are brand new so does this indicate that the 5101 CMOS RAM (IC19) is bad?
I'm putting together an order from Marco and want to have all the possible problem parts ordered at once.

With the power off, check the voltage on the ram, to ensure the battery voltage is actually reaching it. I'd so, I'd suspect the ram

2 weeks later

#12 6 years ago

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zacaj

Usually it won't boot without the driver board. I don't know what the test points are on that board, but you should be getting 5v between pins 1 and 5 of J2.

#14 6 years ago

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zacaj

OP
Quoted from Jakers:
On J2, pins 1 2 3 are ground. Pins 4 5 6 read 4.93 volts. Pin 9 is 12.5 volts.

That's a bit low, but not horribly....

#16 6 years ago

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zacaj