Sony ST-D777ES Service Manual ▷ View online
ST-D777ES
17
17
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM
3G
+5V
REG
3
1
IC110
+B4(9V)
+B3(9V)
FE101
DAB FRONTEND
IC101
IF OUT
NUL
+B2(5V)
+B1(5V)
+B5(5V)
7
5
IC102
CH1
1
6
DATA
4
BCLK
5
LRCK
AFC CONTROL
IC103
AFC
SDA
SCL
SDA
SCL
DAB+9V
DRAM
IC105
IC105
24
25
2
.
.
.
1
9
12
14
18
5
.
9
.
.
47
44
41
43
50
.
51
.
.
54
.
59
60
57
.
.
.
58
4
RAS
23
CAS
3
WE
22
OE
NRRAS
55
NRCAS
53
NRAWME
56
NRAMOE
52
CTL DATA
73
CTL CLK
72
CTL LR
71
RDT0
RDT3
RAD0
RAD9
A0
A9
DQ1
DQ4
VREF
83
AD IN
80
NUL DET
77
DAB DECODER
IC104
16
DA OUT
29
RDI OUT
21
SDAT
20
SCLK
19
SLRCK
14
MCLK2
13
VDD0
31
VDD1
49
VDD2
75
VDD3
DATAI
48
BCKI
49
LRCKI
50
LVCKO1
45
CKVDD
37
DATAVDD
54
DINIT
40
Q501
AVDDL1
4
AVDDL2
5
AVDDR1
21
AVDDR2
20
CTLVDD
36
XVDD
11
VDD
55
VDD
78
+3.3V
REG
3
1
IC106
DAB+5V
82
AVDD
6
MPU MOD
5
MPU TX
4
MPU RX
3
MPU CLK
2
MPADRDY
1
MPU SYNC
11
NRST
MPU MOD
MPU TX
MPU RX
MPU CLK
MPADRDY
MPU SYNC
NRST
DIGITAL FILTER
IC501
8
NSDOL1
6
NSDOL2
3
NSDOL3
1
NSDOL4
17
NSDOR1
19
NSDOR2
22
NSDOR3
24
NSDOR4
13
XIN
10
64FSI
29
SYSM
30
INIT
31
LATCH
32
SHIFT
33
SC DATA
DF DA
DF CLK
DF CE
DA RST
DA MUTE
D/A CONV
IC502
NSDTIL1
56
NSDTIL2
57
NSDTIL3
58
NSDTIL4
59
NSDTIR1
49
NSDTIR2
48
NSDTIR3
47
NSDTIR4
46
CS12FSO
51
NSBCK0
54
MUTE
39
79
L1(+)
76
L1(-)
2
L2(+)
5
L2(-)
26
R1(+)
29
R1(-)
23
R2(+)
20
R2(-)
IC505
IC507
IC507
IC505
LINE AMP
IC506
IC508
IC508
IC506
10
XVDD
74
AVDDPL1
75
AVDDML1
7
AVDDPL2
6
AVDDML2
31
AVDDPR1
30
AVDDMR1
18
AVDDPR2
19
AVDDMR2
13
XIN
+5V
REG
3
1
IC503
DAB+12V
X501
49.152M
+5V
REG
1
3
IC504
FM
TM201
AM
RELAY
DRIVE
Q201
RY201
+B SWITCH
Q210,212
AM+12V
FMAM+12V
Q208
AM
FRONTEND
Q203
Q204
MW/LW
SWITCH
SWITCH
Q205
RF AMP
Q202
5
9
3
19
18
20
10
IF AMP
Q206
13
16
15
CF201
450kHz
IFT201
AM RF/IF AMP
IC202
AM METER
LEVEL
RV201
FE201
IFIN
12
IFREQ
11
AMIN
14
MW/LW
9
AOUT1
17
AIN1
18
PD1
19
FM/AM
8
ATT
7
AOUT2
22
AIN2
21
PD2
22
FMIN
15
PLL
IC201
FMAM+12V
IF OUT
OSC OUT
VT
+B
ANT
FM FRONTEND
FE202
EEPROM
IC602
IF AMP
Q207,209
CF202
10.7MHz
IF AMP
Q211,213
CF203
10.7MHz
IF AMP
Q214
CF204
10.7MHz
IF AMP
Q215,216
CF205
10.7MHz
10
NA/WD
6
DO
4
DI
5
CL
3
CE
AP DO
AP DI
AP CL
AP CE
13
MONO
FM/IF AMP
IC203
1
15
STEREO
LEVEL
RV203
FM METER
LEVEL
RV207
13
12
8
IF AMP
Q302
6
Q401
T201
AM+12V
Q301
FM
2
AM
1
5
L1
6
L2
8
R1
7
R2
4
13
ST
STEREO
SPARATION
RV301
FM MPX
IC301
VDD
21
CF301
456kHz
SDA
SCL
LPF302
LPF
IC302
MUTE
Q304,306
LPF302
LPF
IC302
MUTE
Q303,305
IC108
IC109
MUTE
Q502
RY501
MUTE
Q504
FMAM+12V
L
R
PJ501
ANALOG
OUT
DAB
DIGITAL OUT
(OPTICAL)
DAB
DIGITAL OUT
(COAXIAL)
DAB
RDI OUT
(OPTICAL)
79
FL DA
DA MUTE
77
IC601
SYSTEM CONTROL
DA RST
76
DF CF
75
DF CL
74
DF DA
73
NRST
90
DA MUTE
DA RST
DF CF
DF CL
DF DA
MPU SYNC
94
MPADRDY
95
MPU CLK
88
MPU RX
86
MPU TX
87
MPU MOD
89
DP SDA
31
NRST
MPU SYNC
MPADRDY
MPU CLK
MPU RX
MPU TX
MPU MOD
11
10
IC603
DP SCL
32
13
12
IC603
1
2
IC603
STEREO
47
4
13
14
2
16
X401
4.332MHz
RDS
IC401
A STP
46
RD DO
85
RD CL
84
SDA
29
XTAL
66
VCO
17
AP CE
37
AP DI
34
AP CL
36
AP DO
35
3
4
5
6
AP CE
AP DI
AP CL
AP DO
SIGNAL
52
EXTAL
68
SCL
30
X601
10MHz
5
6
16
50
SIRCS
81
FL CLK
82
FL ENB1
83
FL ENB2
78
FL RST
IC802
FL DRIVER
DA
63
CP
62
CS
61
RESET
60
4
AD1
3
AD2
BUFFER
Q803,804
5
39
40
55
SEG1
SEG35
COM1
COM16
BUFFER
Q805,806
16G
FL801
IC803
FL DRIVER
DA
63
CP
62
CS
61
RESET
60
4
AD1
3
AD2
BUFFER
Q801,802
5
39
SEG1
SEG35
FF1
FF2
SIRCS
IC801
IC801
2
3
53
KEY1
+3.3V
54
KEY2
55
KEY3
FUNCTION
KEY
ROTARY
ENCORDER
RV801
S801-813
T901
D906
FF1
FF2
AC
IN
S901
POWER
-30V REG
Q912,913
IC906
+5V
REG
2
3
-30V
5V SW
Q908
SWITCH
Q909
5
8
3
6
POWER
CONT
IC906
IC906
3.3V SW
Q910
FMAM +5V
DAB +5V
+3.3V
D901-904
IC901
+12V
REG
2
3
-12V SW
Q907
-12V
DAB -12V
IC903
-12V
REG
REG
2
3
Q906
+12V SW
Q903
SWITCH
Q904
+12V SW
Q902
FMAM +12VV
DAB +12V
SWITCH
Q901
D905
IC902
+9V
REG
5
3
4
2
DAB +9V
POWER
CONTROL
Q905
96
DAB/FMAM
63
POWER
RESET
Q911
62
RESET
9
8
IC603
MUTE
CONTROL
Q503
AF MUTE
72
: DIGITAL OUT
• Signal Path
: FM
: ANALOG OUT
1
2
IC107
J101
18
18
4-2. CIRCUIT BOARDS LOCATION
• Waveforms
MAIN board
MAIN board
•
U
: B+ Line.
•
V
: B– Line.
• Voltages and waveforms are dc with respect to ground under
no-signal (detuned) conditions.
no mark : FM
( ) : MW
< > : LW
no mark : FM
( ) : MW
< > : LW
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production tol-
erances.
erances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production tol-
erances.
erances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: FM
f
: AM
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
• b
: Pattern from the side which enables seeing.
Note:
The components identified by mark
The components identified by mark
0
or dotted line with
mark
0
are critical for safety.
Replace only with part number specified.
• Indication of transistor
C
These are omitted
E
B
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in
each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in
each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV
• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV
or less are not indicated except for electrolytics and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise speci-
fied.
•
f
: internal component.
•
C
: panel designation
AC SW board
KEY SW board
POWER board
DISPLAY board
ENCODER board
MAIN board
1
IC201
wf
4.6Vp-p
222.2ns
2
IC401
qf
2.2Vp-p
230.8ns
3
IC501
rg
3.3Vp-p
40.7ns
4
IC502
qd
6.0Vp-p
20.3ns
5
IC502
ta
5.6Vp-p
40.7ns
6
IC502
tf
6.0Vp-p
162.7ns
7
IC601
yk
3.5Vp-p
100.0ns
ST-D777ES
19
19
4-3. PRINTED WIRING BOARD MAIN SECTION
Ref. No.
Location
D201
E-2
D202
C-9
D203
D-9
D204
E-7
D301
E-9
D302
C-5
D501
B-4
D502
B-4
D503
B-3
D601
D-12
D602
B-11
IC101
H-4
IC102
H-2
IC103
H-3
IC104
I-3
IC105
J-5
IC106
I-5
IC107
I-2
IC108
I-2
IC109
J-2
IC110
H-6
IC201
E-3
IC202
C-8
IC203
E-7
IC301
C-5
IC302
C-3
IC401
E-8
IC501
I-6
IC502
I-9
IC503
G-9
IC504
G-9
IC505
J-11
IC506
H-11
IC507
J-12
IC508
H-12
IC601
C-12
IC602
D-12
IC603
E-11
Q201
E-2
Q202
D-6
Q203
C-6
Q204
C-7
Q205
D-7
Q206
C-9
Q207
G-5
Q208
E-4
Q209
F-5
Q210
F-5
Q211
G-6
Q212
F-5
Q213
F-6
Q214
F-6
Q215
E-5
Q216
E-6
Q301
D-9
Q302
F-9
Q303
C-2
Q304
D-2
Q305
C-2
Q306
D-2
Q401
E-7
Q501
I-7
Q502
B-3
Q503
B-4
Q504
B-3
• Semiconductor
Location
(Page 27)
(Page 27)
(Page 25)
1
2
A
B
C
D
E
F
G
H
I
J
K
3
4
5
6
7
8
9
10
11
12
13
• Refer to page 18 for Circuit Boards Location.
ST-D777ES
20
20
4-4. SCHEMATIC DIAGRAM MAIN SECTION (1/4)
• Refer to page 19 for Printed Wiring Board.
• Refer to page 18 for Waveform.
• Refer to page 18 for Waveform.
• Refer to page 28 for IC Pin Function Description.
• Refer to page 31 for IC Block Diagrams.
• Refer to page 31 for IC Block Diagrams.
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