Sony SS-DX50, Руководство по обслуживанию

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42 42
HCD-DX50/RG80
6-22. PRINTED WIRING BOARD SWITCH SECTION • See page 20 for Circuit Boards Location.
(Page 33)
There are a few cases that the part printed on
this diagram isn’t mounted in this model.
6-23. IC PIN FUNCTION DESCRIPTION
• IC501 M30620MCA-A95FP (MASTER CONTROL) (MAIN BOARD)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
I/O
O
I
I
I
O
O
O
—
—
I
O
I
O
—
I
—
I
I
I
I
O
O
O
O
I
O
O
O
O
O
—
I
O
I
O
—
O
O
O
O
O
O
O
O
O
I
I
I
I
I
Pin Name
AUDIO-OUT
STEREO
TUNED
SIRCS
SUR1
SUR2
SUR3
N.C.
N.C.
XC-IN
XC-OUT
RESET
X-OUT
VSS
X-IN
VCC
NMI
RDS-INT
SCOR
RDS-DATA
ST-MUTING
ST-CE
ST-DOUT
BU-PWM3
ST-DIN
BU-PWM2
ST-CLK
BU-PWM1
IIC CLK
IIC DATA
N.C.
SQ-DATA
SQ-CLK
SENS
CD-DATA
N.C.
CD-CLK
CD-POWER
CLOCK-OUT
HOLD
M-RESET
XLT
XRST
LOAD-IN
LOAD-OUT
OPEN-SW
CLOSE-SW
BU UP/DOWN-SW
T-SENS
N.C.
Description
Audio out ON/OFF signal (H=ON,L=OFF)
STEREO detect signal input (L=ON,H=OFF)
TUNED detect signal input (L=ON,H=OFF)
Remote control receiver data signal input
Not used
Not used
Not used
Connected to ground
Connected to ground
Sub clock input
Sub clock output
System reset input
Main system clock output
Ground
Main system clock input
Power supply (+5V)
Not used (connected to Vcc)
RDS interrupt signal input
CD Q-data signal input
RDS data signal input
Tuner muting signal output
Tuner chip enable output
Tuner data signal output
BU PWM signal output
Tuner data signal input
BU PWM signal output
Tuner clock signal output
BU PWM signal output
IIC CLS output
IIC SDA output
Not used
CD SQ data input
CD SQ clock output
BD condition signal input
CD data signal output
Not used (connected to ground)
CD clock signal output
CD power control signal output (H=ON,L=OFF)
Test point (clock check)
MODE signal output
Display control IC reset signal output
CD LAT signal output
CD reset sgnal output
Loading motor control signal output
Loading motor control signal output
Tray open detect signal input
Tray close detect signal input
Pick-up up/down detect signal input
CD table detect signal input
Not used (connected to ground)