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Line level (unamplified ) audio from Jackie Chan arcade boards


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The Jackie Chan fighting game arcade boards produced by Kaneko (Kung Fu Master and Fists of Fire) both only output amplified stereo audio output - both from the Jamma header and from a 4-pin header on the motherboard near the amplifier heatsink.

Many arcade cabinets and supergun setups these days...

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SEGA Master System 1 VA3 PAL 50/60Hz mod


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I was recently asked to modify a fellow's Master System 1 and add a 50/60Hz switch, so I had a look around at MS1 mods and found a nice and easy guide, which mentioned the solder points are clearly labelled 'NTSC' and 'PAL'. Upon opening this particular MS1, I found no such thing - but there was a s...

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Line level (unamplified) sound from Midway Wolf Unit/UMK3


Categories: [blog]

Obtaining unamplified audio from arcade game PCBs is a fairly common goal. The JAMMA standard only allows for amplified mono audio, and if your arcade cabinet is wired up for stereo, chances are it'll have its own amplifier as well, meaning you won't be very interested in the audio available on the...

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