Pioneer VSX-D506S Service Manual page 55

VSX-D506S, VSX-456
fom [rears ow
34 DC.DETECT input Input of the protection circuit as DC DETECTOR.
35, 36
When Lo is input, this port opens relays other than the AC relay.
"POWEROFF" flashes on the 8th digits of the FL display.
VIDEO IC eee ara parallel control for the video function IC.
eee Sana on LA7952 Refer to SW specification.
RESET Same specification as VSX-605S
Oscillation input 7.7MHz {ASS 1055)
Oscillation output
VIDEO signal MUTE Lo active Output for muting MOTOR OUT
output Becomes H when in the audio FUNCTION.
ROS decoder VDD ON/| H active Turns ON/OFF the RDS decoder Tr switch for VDD.
OFF and FM/AM Lo when in AM and Hi in FM of the function tuner. Lo when the
selection power is OFF.
H at other times even when functions other than TUNER are set.
TC9299 ST output Depending on TC9299 Serial control] STROBE for the electric volume (for REAR, CENT.,
SUB WF) TC9299 (x2).
3 lines of 58, 61, and 62 (AC-3 model only).
TC9162 ST output Depending on TC9162 Serial control STROBE for the function IC TC9162.
3 lines of 59, 61, and 62 (AC-3 model only).
TC9273 ST output Depending on TC9273 Serial control STROBE for the function IC TC9273.
3 lines of 60, 61, and 62.
SYS.DATA output Depending on TC9273, Controls PLL IC, AUDIO FUNC. IC, E.VOL. IC with a serial control
TC9162, TC9299, and data.
LM7001 (TC9162 and TC9299 are only for AC-3 model)
SYS.CK output Depending on TC9273, Controls PLL IC, AUDIO FUNC. IC, E.VOL. IC with a serial contro!
TC9162, TC9299, and clock.
LM7001 (TC9162 and TC9299 are only for AC-3 model)
PLL CE. output Depending on LM7001 CHIP ENABLE for the tuner PLL IC serial control.
3 lines of 61, 62, and 63
T.MUTE ON/OFF Muting control for the tuner output.
output Muting timing is the same as the conventional model.
Set to H in functions other than TUNER.
TUNERT forcible
monaural ON/OFF
output
Set to H when the forcible monaural is ON in the MPX mode of the
TUNER function.
SP-A RY
Turns ON/OFF the Tr switch for the front SP to be connected in
SP-B RY series. Logic is as follows.
FRONT RY 52 50 49
ON/OFF output SP-A ON H Lo
SP-B ON Lo H
4,B ON Lo Lo
Hi Hi
rIrtrt
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