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Pin No.
Pin Name
38
N/R OUT
39
MTLON
40
CM ON
41
TAPON
42
PW SEL
43
RC IN1
44
TEST
45
EQSEL
46
BEEP
47
MUT
48
VOLCE
49
SUBCE
50
VOLCKO
51
SUBCKO
52
VOLSO
53
TAPMUT
54
DOLON
55
DOLBC
56
AMSIN
57
DIMMER
58
AD ON
59
TIRIND
60
RESET
61
SIRCS
62
BU IN
63
DOORSW
64
ACCIN
65
NOSESW
66
TELMUT
67
KEYACK
68
VDD
69
X OUT
70
X IN
71
GND
72
XT OUT
73
XT IN
74
AVDD
75
AVREF0
I/O
Forward/reverse direction control signal output to the CXA2511AQ (IC231)
O
"H: forward direction, "L": reverse direction
O
METAL on/off control signal output to the CXA2511AQ (IC231) "H": METAL on
O
Capstan/reel motor (M901) drive signal output terminal "H": motor on
O
Tape system power supply on/off control signal output terminal "H": tape on
I
Power select switch (S501) input terminal "L": off (halt mode), "H": on (operation mode)
I
Rotary remote commander shift key A/D input terminal
I
Setting terminal for the test mode "L": test mode (normally fixed at "H")
I
Equalizer selection input terminal (fixed at "H")
O
Beep sound drive signal output terminal
Muting control signal output to the line muting circuit and power amplifier (IC701)
O
"H": muting on
O
Chip enable signal output to the main electrical volume (IC301)
O
Chip enable signal output to the sub electrical volume (IC382)
O
Serial data transfer clock signal output to the main electrical volume (IC301)
O
Serial data transfer clock signal output to the sub electrical volume (IC382)
O
Serial data output to the main electrical volume (IC301) and sub electrical volume (IC382)
O
Tape muting on/off control signal output to the CXA2511AQ (IC231) "H": tape muting on
O
Dolby on/off control signal output to the CXA2511AQ (IC231) "H": dolby on
Dolby B/C selection control in/out terminal
At initial mode: dolby B only/dolby B and C type selection input ("L" input: dolby B and C)
I/O
At normal mode: dolby type selection signal output to the CXA2511AQ (IC231)
"L": dolby B, "H": dolby C
Whether a music is present or not from CXA2511AQ (IC231) is detected at auto music sensor
I
"L": music is present, "H": music is not present
O
Dimmer control signal output terminal
O
Power supply on/off control signal output for the A/D converter "L": power on
O
LED drive signal output for the TIR indicator "L": LED on Not used (open)
System reset signal input from the reset signal generator (IC551) and reset switch (S551)
I
"L" is input for several 100 msec after power on, then it changes to "H"
I
Sircs signal input from the remote control receiver (IC702)
Battery detect signal input from the SONY bus interface (IC571) and battery check circuit
I
"H": battery on
I
Door open/close detect input "L": door close
I
Accessory detect signal input terminal "L": accessory on
I
Detects the removal of the attaching and removing type front panel block "L": attaching
I
Telephone muting signal input terminal At input of "L", the signal is attenuated by –20 dB
Input of acknowledge signal for the key entry Acknowledge signal is input to accept function
I
and eject keys in the power off status On at input of "L"
—
Power supply terminal (+5V)
O
Main system clock output terminal (5 MHz)
I
Main system clock input terminal (5 MHz)
—
Ground terminal
O
Sub system clock output terminal (32.768 kHz)
I
Sub system clock input terminal (32.768 kHz)
—
Power supply terminal (+5V) (for A/D converter)
I
Reference voltage input terminal (+5V) (for A/D converter)
Function
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