MHC-S9D, ST-S9 - Sony Audio Service Manual (repair manual). Page 17

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ST-S9
17
17
5-7.
SCHEMATIC  DIAGRAM  – DSP Board (2/2) –
 See page 11 for Waveforms. 
 See page 11 for IC Block Diagram.
(Page 16)
(Page 12)
ST-S9
18
18
5-8.
PRINTED  WIRING  BOARDS  – PANEL Section –
 See page 10 for Circuit Boards Location.
FL601
FLUORESCENT
INDICATOR
TUBE
S611
JW45
S610
S604
S605
S609
S608
S606
S607
S601
S602
S603
R620
X601
C608
C607
C606
R628
R629
R630
R607
R632
R604
R634
R631
R636
R633
R638
R635
C601
R603
JW8
JW6
R605
R618
R619
R627
R621
R622
R623
R624
R625
R626
C610
NO601
R637
R617
C652
JW10
R608
R616
CN602
C605
C653
C654
C655
C656
C657
C658
C659
C660
C661
C662
JW3
C651
R639
R606
D601
JW11
JW57
JW31
JW33
JW36
JW24
C649
C650
JW1
JW4
JW601
JW602
R677
JW114
R602
R601
C603
C663
C664
C669
JW5
IC601
NO101
R101
R102
C101
IC101
C665
C666
C615
C614
(AEP, UK)
(AEP, UK)
PANEL BOARD
S601 – 612
ENTER
PRESET
TUNER MEMORY
STEREO/MONO
TUNER/BAND
+
+
TUNING
D
MAIN BOARD
CN502
TIMER SELECT
CLOCK/TIMER
DISPLAY
1
3
1-680-696-
11
(25)
1-680-697-
11
(25)
1
1
3
3
SIRCS
BOARD
A
B
C
D
1
2
3
4
5
6
7
8
9
10
PTY
S612
• Semiconductor
Location
Ref. No.
Location
D601
C-5
IC101
C-10
IC601
B-5
(Page 14)
ST-S9
19
19
5-9.
SCHEMATIC  DIAGRAM  – PANEL Section –
 See page 11 for Waveform.
(Page 13)
ST-S9
20
20
5-10.
IC  PIN  FUNCTION  DESCRIPTION
 MAIN BOARD  IC501 M30622MGA-A77FP (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)
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)
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”
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 input from the RDS decoder on the FM/AM tuner unit
(Used for the AEP and UK models)
19
Not used (open)
20
RDS-DATA
I
Serial data input from the RDS decoder on the FM/AM tuner unit
(Used for the AEP and UK models)
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 DVP-S9
30
IIC DATA
I/O
Communication data bus with the display controller (IC601) and DVP-S9
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-S9D
59
EXP-OUT DATA
O
Serial data output to the I/O expander in the TA-S9D
60
EXP-LAT
O
Serial data latch pulse signal output to the I/O expander in the TA-S9D
61
EXP-CLK
O
Serial data transfer clock signal output to the I/O expander in the TA-S9D
Pin No.
Pin Name
I/O
Description
62
VCC
Power supply terminal (+5V)
63
SOFT-TEST
O
Soft test output terminal    Not used (open)
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-S9D 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
I
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

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