Dragon's Lair Fans - Arcade Lifestyle
General Chat => Technical Area => Topic started by: mikemcbike on October 24, 2018, 01:45:53 PM
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Hybrid RCDM-I107 reverse engineered
for example with Caveman Ninja, Data East created a PCB filled up with custom ICs and funny ceramic hybride circuits...
If you connect the JAMMA the wrong way, at least one RCDM_I107 gets fried by the 12V audio supply voltage.
If you are unlucky, your custom 104 gets killed, too. You can rename it to 404 - function not found... ;D
I was curious, what's inside a I107 and how it can be replaced.
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a combination of 100R/1k (original) or 100R/10k (see photo) is perfectly working. You neither need the capacitors nor the protection diodes...
Here's the full story in German language: http://www.wolfgangrobel.de/arcadereps6/caveman.htm
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Nice work :)
You have a good website too, lots of good info and repair ;logs on there, I like your IC list PDF. Seems like a good quick reference for lots of devices.
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Thank you very much, smarty!
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👍 nice fix