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Panel En
L+R Audio
(L)
(R)
Switch
Logic
Header
Line Out
Audio
Bias
Mic In
PCI
Bus
AC’97
Audio
Cntlr.
MCP or MCP-2
AC97
Link Bus
PC Beep Audio
L+R (Mono)
Audio
+
-
Internal
Speaker
CD Audio (R)
CD ROM
CD Audio (L)
Audio
Bias
Mic In
Line In
(L)
(R)
Audio
Codec
HP Out
Audio (L/R)
(L)
(R)
Headphones/
Line Out
TDA
7056
Front Panel Assembly
Figure 5-10. Audio Subsystem Functional Block Diagram
Compaq D315 and hp d325 Personal Computers
Featuring the AMD Athlon XP Processor
Second Edition - April 2003
5-27