Read Sony MHC-SV7AV / ST-SV7 Service Manual online
ST-SV7
20
20
5-10.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC501 M30622MGA-A69FP (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
AMP-DATA
O
Serial data output to the M61512FP (IC607)
2
AMP-CLK
O
Serial data transfer clock signal output to the M61512FP (IC607)
3
AMP-LAT
O
Serial data latch pulse signal output to the M61512FP (IC607)
4
SIRCS
I
Remote control signal input from the remote control receiver (IC101)
5
DIG-TX
O
Serial data output to the CXD9617R (IC601), digital audio interface receiver (IC604) and digital
filter (IC606)
filter (IC606)
6
DSP-RX
I
Serial data input from the digital audio interface receiver (IC604)
7
DIG-CLK
O
Serial data transfer clock signal output to the CXD9617R (IC601), digital audio interface receiver
(IC604) and digital filter (IC606)
(IC604) and digital filter (IC606)
8
GND
—
Ground terminal
9
CNVSS
—
Not used
10
XCIN
I
Sub system clock input terminal (32.768 kHz)
11
XCOUT
O
Sub system clock output terminal (32.768 kHz)
12
RESET
I
System reset signal input from the reset signal generator (IC551) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
13
XOUT
O
Main system clock output terminal (16 MHz)
14
VSS
—
Ground terminal
15
XIN
I
Main system clock input terminal (16 MHz)
16
VCC
—
Power supply terminal (+5V)
17
NMI
I
Non-maskable interrupt input terminal Fixed at “H” in this set
18
RDS-INT
I
Serial data transfer clock signal from the RDS decoder Not used (open)
19
—
—
Not used (open)
20
RDS-DATA
I
Serial data input from the RDS decoder Not used (open)
21
ST-MUTE
O
Tuner muting on/off control signal output to the FM/AM tuner unit “L”: muting on
22
ST-CE
O
Chip enable signal output to the FM/AM tuner unit
23
ST-DOUT
O
Serial data output to the FM/AM tuner unit
24
—
—
Not used (open)
25
ST-DIN
I
Serial data input from the FM/AM tuner unit
26
—
—
Not used (open)
27
ST-CLK
O
Serial data transfer clock signal output to the FM/AM tuner unit
28
—
—
Not used (open)
29
IIC CLK
I/O
Communication data reading clock signal input or transfer clock signal output with the display
controller (IC601) and MCE-SV7
controller (IC601) and MCE-SV7
30
IIC DATA
I/O
Communication data bus with the display controller (IC601) and MCE-SV7
31 to 34
NO-USE
—
Not used
35 to 40
—
—
Not used (open)
41
M-RESET
O
Reset signal output to the display controller (IC601) “L”: reset
42 to 50
—
—
Not used (open)
51
NO-USE
—
Not used
52 to 57
—
—
Not used (open)
58
EXP-IN DATA
I
Serial data input from the I/O expander in the TA-SV7AV
59
EXP-OUT DATA
O
Serial data output to the I/O expander in the TA-SV7AV
60
EXP-LAT
O
Serial data latch pulse signal output to the I/O expander in the TA-SV7AV
61
EXP-CLK
O
Serial data transfer clock signal output to the I/O expander in the TA-SV7AV
62
VCC
—
Power supply terminal (+5V)
63
SOFT-TEST
I
Soft test output terminal Not used (open)
Pin No.
Pin Name
I/O
Description
64
VSS
—
Ground terminal
65 to 70
—
—
Not used (open)
71
LINE-MUTE
O
Audio line muting on/off control signal output to the audio line circuit “L”: muting on
72
—
—
Not used (open)
73
DISPLAY KEY
I
DISPLAY switch (S601) input terminal
74
POWER KEY
I
Power on/off switch in the TA-SV7AV input terminal
75
DIR-UNLOCK
I
PLL lock error and data error flag input from the digital audio interface receiver (IC604)
76
DIR-CS
O
Chip enable signal output to the digital audio interface receiver (IC604)
77
DIR-XSTATE
I
Source clock switching monitor input from the digital audio interface receiver (IC604)
78
DIR-RX
I
Read data input from the digital audio interface receiver (IC604)
79
CODEC-SMUTE
O
Soft muting on/off control signal output to the A/D, D/A converter (IC605) “L”: muting on
80
DSP-ACK
I
Acknowledge signal input from the CXD9617R (IC601)
81
DSP-CS
O
Chip select signal output to the CXD9617R (IC601)
82
DSP-DECODE
O
Decode signal input from the CXD9617R (IC601)
83 to 86
—
—
Not used (open)
87
STEREO
I
FM stereo detection signal input from the FM/AM tuner unit “L”: stereo
88
TUNED
I
Tuning detection signal input from the FM/AM tuner unit “L”: tuned
89 to 91
—
—
Not used (open)
92
MODEL-IN
I
Model setting terminal
93
SPEC-IN
I
Specification setting terminal
94
—
—
Not used (open)
95
V-MUTE
O
Video muting on/off control signal output terminal “L”: muting on Not used (open)
96
AVSS
—
Ground terminal
97
—
—
Not used (open)
98
VREF
I
Reference voltage (+5V) input terminal
99
AVCC
—
Power supply terminal (+5V)
100
AC-CUT
I
AC cut on/off detection signal input from the reset signal generator (IC551)
“L”: AC cut on, “H”: AC cut off or checked
“L”: AC cut on, “H”: AC cut off or checked
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