Yamaha DSP-A1 Owner's Manual page 19

Connecting an external sound processor, decoder, amplifier, etc. to this unit
This unit is equipped with additional 6-channel audio signal
input terminals (for left main, right main, center, left rear
surround, right rear surround and subwoofer channels)
available for inputting signals from your existing amplifier,
sound processor, decoder, etc. to this unit.
To listen to a sound by reproducing signals input to these
terminals, press the TAPE 2 MON/EXT. DECODER button on
the front panel once or more so that "EXT. DECODER IN"
appears on the display. By doing so, the signals input to these
terminals are sent to the corresponding SPEAKERS terminals
and OUTPUT terminals of this unit.
DIGITAL
(AC-3) RF SIGNAL
DIGITAL SIGNAL
AUDIO SIGNAL AUDIO SIGNAL
GND
PHONO
LD
1
CD
CD
2
TV/DBS
TUNER
3
DVD/
VCR 3 PLAY
COAXIAL
MD/TAPE 1
OPTICAL
4
CD
REC
3
PLAY
PLAY
MD/TAPE 1 TAPE 2
4
REC
REC
LD MAIN
SUB
TV/DBS
CENTER
WOOFER
DVD/
SURROUND
VCR 3
EXTERNAL DECODER INPUT
Note
When signals input to these terminals are selected, the digital
sound field processor cannot be used.
(General model)
VIDEO SIGNAL
VIDEO S VIDEO
MAIN
LD
TV/DBS
IN
VCR 1
FRONT
OUT
IN
VCR 2
OUT
IN
DVD/
VCR 3
DVD/VCR 3 OUT
CAN BE USED AS A SECOND
OUT
MONITOR OUT, IF SELECTED
BY SET MENU.
MONITOR
PAL NTSC
OUT
MAIN OUT
CENTER OUT
SURROUND OUT
SUBWOOFER OUT
External sound processor,
decoder, amplifier, etc.
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