Mod aux input old cd player?[LA4227 Sanyo] - diyAudio
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Old 23rd November 2014, 08:01 PM   #1
ByoXFPD is offline ByoXFPD  Mexico
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Join Date: Nov 2014
Default Mod aux input old cd player?[LA4227 Sanyo]

Hello, Ive been working on adding aux inputs to some old cd players, so far i got the required info and i understand a good portion of it:


LA4227 datasheet(3/4 Pages) SANYO | Audio Output for Radio Cassette Recorders 3W 2ch Power Amplifier

The In1 and In2 are obviously L/R channels but i got a bit lost on the GND one, should i use the PREGND or im missing something?

I've read that the audio GND is the same as any ground, but i highly doubt its the same as the device GND or VCC GND
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Old 24th November 2014, 01:36 AM   #2
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Join Date: Feb 2011
The application circuit shows all GND tied together.
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