Sony WX-C570R Service Manual ▷ View online
– 40 –
Pin No.
Pin Name
I/O
Pin Description
71
GND
—
GND
72
(OPEN)
—
Not used.
73
GND
—
GND
74
AVDD
—
Power supply for A/D conversion.
75
AVREF
—
Reference voltage power supply for A/D conversion.
76, 77
NCO
I
Not used.
78
NIL
I
Not used. (Pull up 5 V.)
79, 80
NCO
I
Not used.
– 41 –
• IC501 MB90574PFV-G-118-BND (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1
—
—
Not used.
2
BUS CKO
—
Not used.
3
—
—
Not used.
4
LM-LOD
O
Tape loading motor control output (Loading direction)
5
LM-EJ
O
Tape loading motor control output (Eject direction)
6
CM-ON
O
Tape capstan motor control output
7
TAPE ON
O
Tape power control output
8
VCC
—
Power supply pin (+5 V)
9
PLL SI
I
PLL data input
10
PLL SO
O
PLL data output
11
PLL CKO
O
PLL clock output
12
FLA DI
—
Not used.
13
LED DATA
O
LED driver control serial data output
14
LED CLK
O
LED driver control serial clock output
15
BEEP
O
BEEP output
16
—
—
Not used.
17
SYSRST
O
System reset output
18
BUS ON
O
Bus ON control output
19
PLL CE
O
PLL chip enable output
20
BUS SI
O
Serial data input (for SONY BUS)
21
BUS SO
O
Serial data output (for SONY BUS)
22
BUS CKI/O
I/O
Serial clock input/output (for SONY BUS)
23
FLASH W
I
Flash write in mode detection input
24
SIRCS
I
Remote commander input (Not used in this set.)
25
—
—
Not used.
26
FL SO
O
FL serial data output
27
FL CKO
O
FL serial clock output
28
FL CE
O
FL serial chip enable output
29
FL BLK
O
FL blank control output
30 – 32
—
—
Not used.
33
VSS
—
GND
34
C
—
Power stabilization capacitor pin
35
AD ON
O
Power control output of A/D conversion.
36, 37
RE IN0, 1
I
Rotary encoder input 0, 1
38
DVCC
—
D/A converter VREF input
39
DVSS
—
GND of D/A converter.
40
ILL ON
O
Illumination power control output
41
TAPE ING
—
Not used.
42
AVCC
—
Analog power supply pin (+5 V)
43
AVRH
—
A/D converter VREF+ input
44
AVRL
—
A/D converter VREF- input
45
AVSS
—
Analog GND
46, 47
KEY IN0, 1
I
Key input 0, 1
48
KEY IN2
I
D-BASS switch input
49
RC IN0
I
Rotary commander input 0
50
DSTSEL0
I
Destination select input 0 (Fixed at “L” in this set.)
51
DSTSEL1
I
Destination select input 1 (Fixed at “L” in this set.)
52
RDS MTPH
I
Tuner multi-pass input
53
VSM
I
S-Meter voltage detection input
54
VCC
—
Power supply pin (+5 V)
55
RAM BU
I
RAM reset detection input
56
POW SEL
I
Power select initial setting input
– 42 –
Pin No.
Pin Name
I/O
Pin Description
57
SD IN
I
Signal detector input
58
WIDE
O
WIDE/NARROW select output (Not used in this set.)
59
LED OE
O
LED driver control over write output
60
LED LCK
O
LED driver control serial latch output
61
AM ST
I
AM stereo input (Not used in this set.)
62
FM ST
I/O
Used in conjunction with stereo input/monaural output (FM mode)
63
VSS
—
GND
64
SEEK OUT
O
SEEK OUT output
65
TU MUTE
O
Tuner mute output
66
VOL SO
O
Electric volume serial data output
67
VOL CKO
O
Electric volume serial clock output
68
VOL CE
O
Electric volume serial chip enable output
69
—
—
Not used.
70
RDS SDA
I
RDS serial clock input
71
RDS SCL
I
RDS serial data input
72
RDS DAVN
I
RDS IC data taking in detection input
73
X1A
—
Low speed oscillation input (32.768 kHz)
74
X0A
—
Low speed oscillation input (32.768 kHz)
75
—
—
Not used.
76
KEY ACK
I
Key input acknowledge
77
BU IN
I
Back-up power detection input
78
RC IN1
I
Rotary commander input
79, 80
—
—
Not used.
81
ACC IN
I
Accessory power detection input
82
—
—
Not used.
83
AF SEEK
O
AF SEEK output
84
MUTE
O
System mute control output
85
AMP ON
O
Power amplifier power control output
86
HSTX
—
Connect to power supply pin.
87
MD2
—
Connect to GND.
88, 89
MD0, 1
—
Connect to power supply pin.
90
RESET
I
Microcomputer reset input
91
VSS
—
GND
92
X0
—
High speed oscillation input (3.68 MHz)
93
X1
—
High speed oscillation input (3.68 MHz)
94
VCC
—
Power supply pin (+5 V)
95 – 99
—
—
Not used.
100
TEST
I
Test mode setting detection input
101
TEL MUTE
I
Telephone mute detection input
102
ILL IN
I
Illumination line detection input
103
—
—
Not used.
104
REEL
I
Tape reel table rotation detection input
105
POS0
I
Tape position detection input 0
106
POS1
I
Tape position detection input 1
107
POS2
I
Tape position detection input 2
108
POS3
I
Tape position detection input 3
109
TAPE MUTE
O
Tape mute output
110
AM IN
I
AM stereo detection input
111
F ROUT
O
Tape forward/reverse detection output
112
AMS ON
O
Tape AMS control output
113
MTL ON
I
Auto METAL detection input
114
DOL ON
O
Tape DOLBY control output
– 43 –
Pin No.
Pin Name
I/O
Pin Description
115
DOL B/C
O
Tape DOLBY B/C select control output (Not used in this set.)
116
FM ON
O
FM ON output
117
TU ON
O
Tuner ON output
118
P-ON
O
System power control output
119
VSS
—
GND
120
—
—
Not used.
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