Epson PowerLite 5000 Service Manual page 47

EPSON PowerLite 5000 Service Manual
The only circuits that the interface signal lines for S-Video and Video In have are noise
filter circuits, therefore they output signals to the main board through the connector CN101.
Audio input signals from computer 1/2 (via Audio In 1/2) or from a video device (via Audio
In L/R) are input to the sound controller and amplified by the sound preamplifier. Then they
are output to the "Audio Out" interface or the built-in speaker through the sound controller
again.
The sound controller performs the audio-signal output selection based on the SCL/SDA
(serial clock /data) signals provided from the main board. The sound volume control uses 8
levels (mute ~ max.) based on the signals (SPAC 0/1) from the main board.
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