Commodore Amiga 1200 Internal Audio Paula CD mixer HI-FI
A very small circuit that allows a volume-perfect mix between CD audio and Paula.
A great trade-off between soundtracks and effects.
The potentiometer is not required.
Crystal clear stereo audio!
Order the PCB with a thickness of 0.8mm or 1.0mm, 1oz.
Tested on Amiga 1200 (PAL) M/B revisions 1D.1 and 2B with CD-ROM Toshiba Samsung TS-L462.
Use shielded cable for headphones/mic or speakers.
Make connections as much shorter as possible.
The following passives must be removed from the motherboard:
R327, R337
C324, C334
Wires should be connected to:
POWER SECTION
-AV to C304 negative
+AV to C303 positive
GND to C303 negative OR C304 positive
INPUT SECTION
LEFT AUDIO input to the pad 1-2 of U15
RIGHT AUDIO input to the pad 6-7 of U15
OUTPUT SECTION
LEFT AUDIO output to the negative pad of C324 (removed)
RIGHT AUDIO output to the negative pad of C334 (removed)
Please refer to the photos in the attachment.
Commodore Amiga 1200 Internal Audio Paula CD mixer HI-FI
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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Jan Lunitz
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abdulhafizh
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Engineer
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Roman Kovář
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Daishi
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