Speaker Unit - Epson PowerLite 5000 Service Manual

2.10 SPEAKER UNIT

Inside the upper case are two, upward-facing speakers. Audio signals from the computer
or AV devices are output through these speakers. If an external speaker is connected to
the Audio Out terminal, the built-in speakers are disabled.
Left Speaker
Speaker Control Circuit Block
Computer 1
Board Audio In
Computer 2
Audio In
Audio
Audio In L/R
The audio input signals from computers or an audio device are first amplified by the
control circuit on the AU board, then output to the speakers via the main board. The
speakers are connected to CN601/602 on the main board. The main board detects the
Figure 2-22
AU Board
J101
Sound Controller
Volume Control
J102
Amplifier Circuit
J100
J103
Figure 2-23
2-23
EPSON PowerLite 5000 Service Manual
Right Speaker
CN100 CN603
CN601
EXT.SP
Right Speaker
Audio Out
Main Board
CN602
Left Speaker