Sony HCD-C990 Service Manual - Page 103

Sony HCD-C990 - Compact Audio And Video System Manual

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HCD-C770/C990 Pin No. Pin Name I/O Description 43 DIP-RST O Reset signal output to the power amplifier "L": reset 44 DIP-OCP I Protect signal input from the power amplifier 45 ST-POWER O System power on/off control signal output "H": power on 46 HP-MUTE O Headphone muting on/off control signal output "L": muting on 47 AU-MUTE O Audio line muting on/off control signal output "L": muting on 48 AV-SEL2 O Audio/video selection signal output 49 PROG SW I SCAN SELECT switch input terminal "L": SELECTABLE, "H": INTERLACE 50 TU-ON O Power supply for tuner pack on/off control signal output 51 TUNED I Tuning detection signal input from the tuner unit "L": tuned 52 TUN-DI I Serial data input from the tuner unit 53 TUN-CE O Chip enable signal output to the tuner unit 54 TUN-DO O Serial data output to the tuner unit 55 TUN-CLK O Serial data transfer clock signal output to the tuner unit 56 FL-MUTE O Reset signal output to the fluorescent indicator tube driver "L": reset 57 FL-CLK O Serial data transfer clock signal output to the LED driver and fluorescent indicator tube driver 58 BVDD - Power supply terminal (+5V) (for bus interface) 59 BVSS - Ground terminal (for bus interface) 60 FL-DATA O Serial data output to the LED driver and fluorescent indicator tube driver 61 FL-CS O Chip select signal output to the fluorescent indicator tube driver "L" active 62 LED-CS O Standby signal output to the LED driver "L": standby 63 LED-CLR O Reset signal output to the LED driver "L": reset 64 HPSW I Connection detection signal input of the headphone jack "L": no connected, "H": headphone connected 65 DFIL RST2 O Reset signal output to the digital audio processor "L": reset 66 SP RELAY O Relay drive signal output terminal for the speaker protect Not used 67 PARA-DO2 I Serial data input from the changer controller (rotary encoder) 68 PARA-RST O Reset signal output to the changer controller (motor, switch) and changer controller (rotary encoder) "L": reset 69 PARA-LT1 O Serial data latch pulse signal output to the changer controller (motor, switch) 70 PARA-LT2 O Serial data latch pulse signal output terminal Not used 71 PARA-CLK O Serial data transfer clock signal output to the changer controller (motor, switch) 72 PARA-DATA O Serial data output to the changer controller (motor, switch) 73 PARA-DO1 I Serial data input terminal Not used 74 AVDD - Power supply terminal (+5V) (analog system) 75 AVSS - Ground terminal (analog system) 76 AVREF I Reference voltage (+5V) input terminal (analog system) 77 NO USE - Not used 78 OPT-SEN2 I Not used 79 OPT-SEN I Disc insert detection signal input from the disc sensor 80 AREA1 I Destination setting terminal 81 SEN2 I Disc loading detection signal input 82 to 84 KEY0 to KEY2 I Key input terminal (A/D input) 85 EN-A I Jog dial pulse input from the rotary encoder (A phase input) 86 EN-B I Jog dial pulse input from the rotary encoder (B phase input) 87 MODEL I Model setting terminal 88 RDS-DATA I RDS serial data input from the RDS decoder (Used for the AEP model) 89 DVD-POWER O DVD power on/off control signal output "H": power on 90 STOP I System stop signal input 103

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103
HCD-C770/C990
Pin No.
Pin Name
I/O
Description
43
DIP-RST
O
Reset signal output to the power amplifier
“L”: reset
44
DIP-OCP
I
Protect signal input from the power amplifier
45
ST-POWER
O
System power on/off control signal output
“H”: power on
46
HP-MUTE
O
Headphone muting on/off control signal output
“L”: muting on
47
AU-MUTE
O
Audio line muting on/off control signal output
“L”: muting on
48
AV-SEL2
O
Audio/video selection signal output
49
PROG SW
I
SCAN SELECT switch input terminal
“L”: SELECTABLE, “H”: INTERLACE
50
TU-ON
O
Power supply for tuner pack on/off control signal output
51
TUNED
I
Tuning detection signal input from the tuner unit
“L”: tuned
52
TUN-DI
I
Serial data input from the tuner unit
53
TUN-CE
O
Chip enable signal output to the tuner unit
54
TUN-DO
O
Serial data output to the tuner unit
55
TUN-CLK
O
Serial data transfer clock signal output to the tuner unit
56
FL-MUTE
O
Reset signal output to the fluorescent indicator tube driver
“L”: reset
57
FL-CLK
O
Serial data transfer clock signal output to the LED driver and fluorescent indicator tube driver
58
BVDD
—
Power supply terminal (+5V) (for bus interface)
59
BVSS
—
Ground terminal (for bus interface)
60
FL-DATA
O
Serial data output to the LED driver and fluorescent indicator tube driver
61
FL-CS
O
Chip select signal output to the fluorescent indicator tube driver
“L” active
62
LED-CS
O
Standby signal output to the LED driver
“L”: standby
63
LED-CLR
O
Reset signal output to the LED driver
“L”: reset
64
HPSW
I
Connection detection signal input of the headphone jack
“L”: no connected, “H”: headphone connected
65
DFIL RST2
O
Reset signal output to the digital audio processor
“L”: reset
66
SP RELAY
O
Relay drive signal output terminal for the speaker protect
Not used
67
PARA-DO2
I
Serial data input from the changer controller (rotary encoder)
68
PARA-RST
O
Reset signal output to the changer controller (motor, switch) and changer controller (rotary
encoder)
“L”: reset
69
PARA-LT1
O
Serial data latch pulse signal output to the changer controller (motor, switch)
70
PARA-LT2
O
Serial data latch pulse signal output terminal
Not used
71
PARA-CLK
O
Serial data transfer clock signal output to the changer controller (motor, switch)
72
PARA-DATA
O
Serial data output to the changer controller (motor, switch)
73
PARA-DO1
I
Serial data input terminal
Not used
74
AVDD
—
Power supply terminal (+5V) (analog system)
75
AVSS
—
Ground terminal (analog system)
76
AVREF
I
Reference voltage (+5V) input terminal (analog system)
77
NO USE
—
Not used
78
OPT-SEN2
I
Not used
79
OPT-SEN
I
Disc insert detection signal input from the disc sensor
80
AREA1
I
Destination setting terminal
81
SEN2
I
Disc loading detection signal input
82 to 84
KEY0 to KEY2
I
Key input terminal (A/D input)
85
EN-A
I
Jog dial pulse input from the rotary encoder (A phase input)
86
EN-B
I
Jog dial pulse input from the rotary encoder (B phase input)
87
MODEL
I
Model setting terminal
88
RDS-DATA
I
RDS serial data input from the RDS decoder (Used for the AEP model)
89
DVD-POWER
O
DVD power on/off control signal output
“H”: power on
90
STOP
I
System stop signal input