Pioneer VSX-D506S Service Manual page 56

VSX-D506S, VSX-456
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48 R.C. RY
ON/OFF output
_ a
Turns ON/OFF the Tr switch for AC power RY. 47 AC RY ON/OFF output
Lo when stand by, H when power ON.
65 A.MUTE output Lo active Controls the audio system muting.
Muting timing is the same as the conventional model.
LOUDNESS ON/OFF Turns ON/OFF the Tr switch for LOUDNESS.
"LOUDNESS? lights up on the FL display when ON.
Forcibly turned OFF when DIRECT ON.
DIRECT ON/OFF output! H active
When DIRECT ON (port High), character "DIRECT" lights up on the FI
display.
TC4052 CONTROL H/L Control output for the IC TC4052 for selecting FRONT signal.
output
M51132 ON/OFF Lo active Control output for the IC M51132L for 5-D THEATER.
output When ON (port Low), character "5-D THEATER' lights up on the F
display.
M65846 ST output Depending on M65846 STROBE for the serial control of DSP IC M65846.
Three lines of 19, 20, and 21.
SURR.CK output Depending on LV1030 CLOCK for the serial control of PRO-LOGIC IC and DSP IC.
and M65846
27 PRO-LOGIC CE output | Depending on LV1030 CHIP ENABLE for the serial control of PRO-LOGIC IC LV1030.
Three lines of 19, 20, and 27.
SURR.DT output Depending on LV1030 DATA for the serial control of PRO-LOGIC IC and DSP IC.
and M65846
5D-CONT Turns ON when the 5D-THEATER surround is effective.
Turns ON/OFF the Tr switch for the rear, center SP RY.
RY for protection is not provided for this model. The following
functions are performed by setting ports 58 to 62 to Lo.
Muting when power ON
Instantaneous shut-off when power OFF
AMP DOC protect
AMP over loading protect
FL driver
Main unit KEY SCAN output
81 is dedicated for selecting a destination.
FL drive segment
output
Also serves as 72 to 81
KEY SCAN
FL driver
(91 is for AC-3 model only)
FL drive grid output
/HY mode! only.
Turns ON/OFF the DIRECT Tr switch.