Ic Pin Function Description - Sony HCD-VX3A Service Manual

7-27.
• MAIN BOARD (4/4) SYSTEM CONTROL IC501 M30622MA-A09FP
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IC PIN FUNCTION DESCRIPTION

Pin Name I/O
STK-MUTE O STK ON(H)/OFF(L)
POWER O POWER ON(H)/OFF(L)
F-RELAY O FRONT-RELAY ON(H)/OFF(L)
R-RELAY O REAR-RELAY ON(H)/OFF(L)
CD-RELAY O CD-POWER ON(H)/OFF(L)
LINE-MUTE O TA LINE-MUTE ON(L)/OFF(H)
DBFB-H/L O DBFB-HIGH(L)/LOW(H)/OFF(H)
GND — Ground
GND — Ground
Xcin I SUB CLOCK IN
Xcout O SUB CLOCK OUT
RESET I SYSTEM RESET IN
Xout O MAIN SYSTEM CLOCK OUT
Vss — Vss
Xin I MAIN SYSTEM CLOCK IN(16MHz)
Vcc O POWER SUPPLY(+5V)
NIMI I PULL UP(EVER+5)CAN'T USE
WAKE_UP I WAKE UP(L)
SCOR I CD Q-DATA REQUEST
RDS-INT I RDS INT
RDS-DATA I RDS DATA
AC-CUT I AC CUT ON(L)/OFF(H) CHECK
PL-CLK O PRO-LOGIC CLOCK
PL-DATA O PRO-LOGIC DATA
PL-LAT O PRO-LOGIC LATCH
TIMER LED O TIMER LED ON(H)/OFF(L)(forFH)
PROTECTOR IN I SPEAKER PROTECT ON(L)/OFF(H)
V_MUTE O VIDEO MUTE ON(H)/OFF(L)(for LBT)
IIC_CLK O IIC SCL
IIC_DATA O IIC SDA
N.C. — Not used
SQ-DATA-IN I CD DATA IN
SQ-CLK O CD DATA CLK
N.C. — Not used
CD-DATA O CD DATA
HEAD PHONE I HEAD PHONE detection Detected (H)/Not detected (L)
CD-CLK O CD CLK
493-LT O 62493 LATCH
CK-OUT/STBY O CLOCK CHECK/STBY-LED(H)(FH)
VC L+R/L–R O VIRTUAL CINEMA L+R/L-R(FH LCD)
VC BYPASS O VIRTUAL CINEMA BYPASS(FH LCD)
FL SW O FL FILAMENT ON(L)/OFF(H)(for ECO)
STBY_RELAY O MAIN POWER ON(H)/OFF(L)(for ECO)
BASS_FREQ O FREQ High(H)/LOW(L)(for SYNC BASS)
FUNC_SEL1 O FUNC_SEL1(LBT)
FUNC_SEL0 O FUNC_SEL0(LBT)/OPT SEL(AMD, MK33)
493-DATA O 62493 DATA
493-CLK O 62493 CLOCK
ST-MUTE O TUNER MUTE
STEREO I STEREO IN(L)/OFF(H)
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Description
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