2-15
EMP-S4
SEIKO EPSON
Revision:B
2.7 Speaker
The projector has a single 1 W built-in speaker that is at the rear of the projector.
It can be used for monaural output of the sound that is input to the projector from a host
computer or video source.
The signal from the computer or video source is amplified by the audio control circuits on the
AV board and then output to the built-in speaker through connector CN1800.
Figure 2-17. Speaker
The following diagram illustrates the circuits that control the speaker.
Figure 2-18. Speaker Control Circuit Block Diagram
Speaker
IC1800
Aud
i
o
Amp
IC104
Aud
i
o
i
nput
port
CN101
CN1800
Speaker
Vo
l
um
up
/
down
Mute
Содержание EMP-S4
Страница 1: ...Service Manual Data Projector EMP S4 ...
Страница 13: ...Chapter 1 Product Specifications ...
Страница 25: ...1 13 EMP S4 SEIKO EPSON Revision B 1 5 External Views Figure 1 8 External Dimensions Unit mm ...
Страница 26: ...1 14 EMP S4 SEIKO EPSON Revision B Figure 1 9 External Dimensions Unit Inch ...
Страница 27: ...Chapter 2 Theory of Operation ...
Страница 49: ...Chapter 3 Troubleshooting ...
Страница 63: ...Chapter 4 Disassembly Assembly ...
Страница 97: ...Chapter 5 Appendix ...
Страница 102: ...5 6 EMP S4 SEIKO EPSON Revision B ...