Sony ST-SE570 Service Manual ▷ View online
ST-SE570
13
13
5-5.
SCHEMATIC DIAGRAM – DISPLAY Section –
•
See page 9 for Waveform.
•
See page 14 for IC Pin Function Description.
R704
R763
R781
CNP703
CN703
CNP704
CN704
CN702
CN701
R727
R726
R732
R731
R730
R729
R728
R725
R724
R723
R722
R721
R711
R712
C709
C708
C710
R713
R709
C702
C704 C703
D702
R703
C705
C701
D701
S719
R771
R770
R773
S720
S721
R775
R776
R777
R778
R779
R780
R762
R761
R760
R759
R758
R757
R756
C717
R752
R753
R754
R755
R750
R751
R710
D705
R702
R701
C706
C707
TP1
TP2
TP3
R707
R706
D703
D704
C713
Q701
C714
R708
R705
FL701
IC701
X701
S701
S702
S703
S704
S705
S706
S707
S708
S709
S710
S711
S712
S717
S718
R772
S722
S723
S724
R774
IC702
S727
S713
S714
S728
RV701
R764
S715
JW754
JW753
JW752
JW751
C711
C712
47k
3.9k
1.2k
3P
3P
4P
4P
8P
9P
470
470
470
470
470
470
470
470
470
470
470
470
100k
100k
0.01
0.01
0.01
100
100
0.01
27p
27p
1SS133T
10k
0.01
0.01
1SS133T
120
100
150
220
270
330
470
560
820
2.2k
1.2k
820
560
470
330
270
220p
120
150
180
220
100
120
10k
1SS133T
1.5k
1.5k
0.1
47
35V
1k
22k
1SS133T
1SS133T
0.01
2SC1740S
0.47
50V
47
470k
F-040-3BA
4.192MHz
120
180
NJL64H400A-1
12k
0.1
0.22F
5.5V
K1
K2
P1
P2
P3
P4
G
1
G
2
G
3
G
4
G
5
G
6
G7
G
8
G
9
G
10
G
11
G
12
G
13
G
1
4
G
15
P1
P
2
P
3
P
4
P
5
P
6
P
7
P
8
P
9
P
1
0
P1
1
P1
2
P
13
P14
P
15
P16
P
17
P18
P19
P20
P21
P22
P2
3
P24
P25
P
26
P
27
P28
P
29
P
30
P
32
P33
P31
P
34
P
3
5
P
3
6
Z1
Z2
Z3
Z4
Z5
Z6
Z7
Z8
Z1
Z2
Z
3
Z
4
Z5
Z6
Z6
Z7
Z7
Z
8
Z7
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G13
G14
G15
P36
P35
P34
P5
P6
P7
P
8
P
9
P10
P11
P
12
P
13
P14
P
15
P
16
P17
P18
P
19
P20
P
21
P
22
P
23
P
24
P
25
P
26
P
29
P
30
P
31
P32
P33
P
27
P
28
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y
1
Y
2
Y3
Y4
Y5
Y
6
Y7
Y
8
Z9
Z10
Z9
Z10
X1
X2
X3
X
1
X
2
X
3
K1
K2
POWER
CLK
DATA
D-IN
RDS-C
CE
ST
AST
MUTE
EON
RDS-D
SI
F
F
G16
P37
GND
+5V
-30V
ENCODER
P36
P35
P34
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G13
G14
G15
P
5
P
6
P
7
P
8
P
9
P
1
0
P
1
1
P
1
2
P
1
3
P
1
4
P
1
5
P
1
6
P
1
7
P
1
8
P
1
9
P
2
0
P
2
1
P
2
2
P
2
3
P
2
4
P
2
5
P
2
6
P
2
7
P
2
8
P
2
9
P
3
0
P
3
1
P
3
2
P1
P2
P3
P4
FLUORESCENT INDICATOR TUBE
SYSTEM CONTROL
RESET
SHIFT
DIRECT
0
9
8
7
6
5
4
3
2
1
PTY
MEMORY
FM MODE
BAND
DISPLAY
AUTO-BETICAL
SELECT
NEWS
/INFO
TA
EON
G
O
U
T
5V
REMOTE SENSOR
CHARACTER
MENU
RETURN
TUNE MODE
TUNING
/SELECT
ENTER
µ
PD780205G
(Page 11)
(Page 11)
ST-SE570
14
14
3
6
11
2
5
8
1
4
14
15
12
9
10
16
13
7
FM IF AMP
LIMITER
AF/NULL
METER
QUADRATURE
DET
AF AMP
IF OFF
NULL METER
SHORTING
LEVEL
DET
METER
DRIVE
MUTING
CIRCUIT
CIRCUIT
DETUNE
DET
GND
B+
1
2
3
4
REG
GND
CONTROL
REG
5
6
7
IC901 LA5667
ANALOG
DIGIT
AL
RCLK
NC
XO
XI
VSS2
T2
VDD2
T1
QUAL
RDA
T
VREF
MUX
VDD1
VSS1
VSS3
CMP
1
4
3
6
5
8
7
2
14
15
16
13
12 11 10
9
CLOCK
PLL 57kHz
RDS/ARI
COMPARATOR
8th SWITCHED
CAPACITOR
FILTER
ANTI-ALIASING
FILTER
BIPHASE
DECODER
PLL
1187.5Hz
DEFFERENTIAL
DECODER
TEST
IC801 BU1924
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC201 LA1235
5-6.
IC PIN FUNCTION DESCRIPTION
•
DISPLAY BOARD IC701 (
µ
PD780205GF-040-3BA)
Pin No.
Pin Name
I/O
Description
1
VDD
—
Power supply terminal (+5V)
2
ANT
—
Not used (open)
3
ANT
—
Not used (open)
4
BAND1
—
Not used (open)
5
BAND2
—
Not used (open)
6
IF-B
—
Not used (open)
7
N.C.
—
Not used (open)
8
MONO
—
Not used (open)
9
TUN
—
Not used (open)
10
RESET
I
System reset signal input terminal “L”: reset
11
X2
O
Main system clock output terminal (4.19MHz)
12
4.19MHz
I
Main system clock input terminal (4.19MHz)
13
GND
—
Ground terminal
14
N.C.
—
Not used (open)
15
LOCK
I
Lock signal input terminal
16
VDD
—
Power supply terminal (+5V)
17
CLK
O
Serial data transfer clock signal output to the PLL IC on tuner pack (TB101) “L”: active
18
DATA
O
Serial data output to the PLL IC on tuner pack (TB101)
19
D-IN
I
Serial data input from the PLL IC on tuner pack (TB101)
20
CE
O
Serial chip enable signal output to the PLL IC on tuner pack (TB101)
21
BLN
—
Not used (open)
22
ST
I
Stereo detection signal input from the tuner pack (TB101)
23
CAL
—
Not used (open)
24
AST
I
Tuned display detection signal input from the tuner pack (TB101) “L”: tuned
25
AVSS
—
Ground terminal
26
MUTE
O
Muting on/off control signal output terminal
27
EON
O
EON output control terminal
28
PGM
—
Not used (open)
29
DATA RDS
I
RDS data input from the RDS decoder (IC801)
30
R2
O
Rotary encoder phase detection
31
KEY2
I
Key input terminal (A/D input)
32
KEY1
I
Key input terminal (A/D input)
33
SI
I
Signal input terminal
34
AVDD
—
Analog power supply terminal (+5V)
35
AVREF
I
Reference voltage (+5V) input terminal
36
RIN
I
Remote control signal input from the remote sensor (IC702)
37
R1
I
Rotary encoder number of rotation detection
38
RDS CLK
I
RDS serial clock signal input from the RDS decoder (IC801)
39
POWER
I
Power supply ON/OFF monitor
40
GND
—
Ground terminal
15
ST-SE570
41, 42
IS5, IS4
I
Setting terminal for the model
43 to 45
IS3, IS2, IS1
I
Setting terminal for the destination
46
VDD
—
Power supply terminal (+5V)
47 to 78
P1 to P32
O
Segment drive signal output to the fluorescent indicator tube (FL701)
79
VLOAD
—
Negative power supply terminal for the fluorescent indicator tube drive (–30V)
80 to 84
P33 to P37
O
Segment drive signal output to the fluorescent indicator tube (FL701)
85
G16
—
Not used (open)
86 to 100
G15 to G1
O
Grid drive signal output to the fluorescent indicator tube (FL701)
16
ST-SE570
6-1. CASE SECTION
SECTION 6
EXPLODED VIEWS
The components identified by
mark 0 or dotted line with mark
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Accessories and packing materials are given
in the last of the electrical parts list.
• Accessories and packing materials are given
in the last of the electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
2
4-232-149-11 CASE (407026)
3
4-210-291-01 SCREW (CASE 3 TP2)
4
X-4953-448-1 FOOT ASSY
#1
2
3
3
3
4
5
FRONT PANEL SECTION
CHASSIS SECTION
5
4-232-237-01 FOOT (DIA. 30)
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
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