Sony SLV-772HF / SLV-779HF Service Manual ▷ View online
SLV-772HF/779HF
SECTION 3
BLOCK DIAGRAMS
3-1. OVERALL BLOCK DIAGRAM
3-1
3-2
BOARD
MF-316
LINE 2
IN
CJ801
VIDEO
MA-341 BOARD
LINE 1
IN
CJ561
VIDEO
L VIDEO 2
L VIDEO 1
SP
CH 1
SP
CH 2
EP
CH 1
EP
CH 2
VIDEO
REC/PB
QAMP
IC260
Y/C
PROCESSOR
IC201
PB Y/C
(1/2)
REC Y/C
C SYNC
CH 1
CH 2
AUDIO
HEAD
VIDEO
HEAD
BOARD
MF-316
LINE 2
IN
CJ801
LINE 1
IN
CJ561
AUDIO
L 1(L)
R
L
L 1(R)
AUDIO
L 2(L)
R
L
L 2(R)
AUDIO
PROCESSOR
IC360
(HIFI)
AUDIO
PROCESSOR
(MONO)
IC201
(2/2)
NORM IN
NORM OUT
AF ENV
AF SWP
I2C CLK
JS321
I2C DATA
TU R
TU L
A L
A R
RF AUDIO
HA SWP
RF ENV
RF SWP
REC/
PB
ERASE
HEAD
BIAS
ERASE
OSC
T301,Q303
NORMAL
AUDIO
FULL
ERASE
HEAD
HEAD
SW
IC331
A HEAD PB
A HEAD REC
OSD
IC160
VIDEO
I2C DATA
I2C CLK
TU VIDEO
Q VD
LINE
OUT
OUT
CJ561
L
R
VIDEO
AUDIO
RF VIDEO
VHF/
UHF
UHF
OUT
IN
TU701
RF VIDEO
TU VIDEO
RF A
UDIO
PLL CLOCK
PLL ENB
TV/VTR
HA SWP
RF ENV
RF SWP
AF ENV
AF SWP
I2C CLK
I2C DATA
PLL DATA
AFT
DRIVE
LED
Q103
T REEL
PH102
S REEL
PH101
T SENS
Q101
S SENS
Q102
(T/S LED)
D103
SW12V
T REEL FG
S REEL FG
T SENS
S SENS
T/S LED
IC160
CONTROL
SYSTEM
SERVO
DRUM
CONTROL
SIGNAL
CAPSTAN
FG
DRUM
PG
DRUM
FG
M
DRUM
MOTOR
M
CAPSTAN
MOTOR
CAP FG
CAP VS
D FG
D PG
D VS
DRUM MOTOR
CAPSTAN MOTOR
LOADING
MOTOR
IC101
M
LOADING
MOTOR
CTL
AMP
ROTARY
SWITCH
SWITCH
CTL REC/PB
CAM +,-
MODE1-4
SERVO
CAPSTAN
FAIL DET
POWER
IC162
PULSE GEN
RESET
INDICATOR TUBE
FLUORESCENT
ND420
-F
+F
IC403
CONTROL
REMOTE
RECEIVER
KEY
FUNCTION
KEY
FUNCTION
DM-84 BOARD
FUNC KEY 1
16
C SYNC
JS202
(1/2)
RF CH
S701
3CH
4CH
Q VD
IC161
EEPROM
(2/2)
DRIVE
FL
IC420
FUNC KEY 2
S408,412,422,423
S401,402,404,405
(SEE PAGE 4-23)
(SEE PAGE 4-24)
(SEE PAGE 4-7,9,11,13,15,17,19)
(SEE PAGE 4-22)
(SEE PAGE 4-23)
SLV-772HF/779HF
3-2. VIDEO BLOCK DIAGRAM
3-3
3-4
MA-341 BOARD
MF-316
BOARD
BOARD
FROM
TUNER
BLOCK
BLOCK
TU VIDEO
CLP
CLP
CLP
32
35
37
39
31
DRUM
VIDEO
HEAD
SP
CH1
SP
CH2
EP
CH1
EP
CH2
CN260
16
19
24
21
5
SW3
PB
PB
PB
PB
17
22
REC
REC
COMP
AGC
DET
DET
13
L270
SW5V
2
3
CN270
CHECK
PIN
PB RF
RF SWP
10
7
6
9
8
13
12
11
IC260
VIDEO REC/PB AMP
IC201
Y/C PROCESSOR
VIDEO
AGC
SYNC
SEP
28
Y/C
MIX
R
P
R
P
LPF
1H
DL
Q203
BUFFER
2
KIL
C
LPF
P
R
P
R
ACC
AMP
N
S
P
R
16
7
REC Y RF
DOUBLE
LIM
DEM
BPF1
DL
EQ
55
1H/2H
DL
52
59
53
61
MAIN
EMPH.
FM
MOD
REC
EQ
VXO1
(1/2)
1
C SYNC
IC160 58
RF ENV
IC160
8
ENV SW
IC160 17
HA SWP
IC160 16
RF SWP
IC160 18
FROM/TO
SYSCON
BLOCK
7
9
PB RF
REC RF
BUFFER
Q500
TO
TUNER
BLOCK
BLOCK
CJ561
LINE 1
IN
VIDEO
CN423
CN491
CJ801
LINE 2
IN
VIDEO
CJ561
LINE
OUT
OUT
VIDEO
AGC
ATT
11
10
12
REC H
REC C
REC CUR ADJ
TRICK H
HA
CONT
ENV
DET
DET
6
2
3
4
TU701 28
P
R
PIC
CONT
DHP
NC
N.L
De-EM
CHARA
INS
FBC 1/2
6dB
AMP
R
P
YNR
29
KIL
B.D
23
24
43
46
47
CLP
41
INV
63
50
CLK IN
AMP
LPF
R
P
BPF2
MAIN
CONV.
BACK UP
AMP
SUB
BPF
BPF
SUB
COMV.
1
FM
AGC
4
SQPB
EQ
PB
EQ
6
8
BUFFER
Q201
SUB
LPF
LPF
R
P
Q202
BUFFER
CLP
10
17
95
N.L
EMPH.
DETAIL
ENH
REC H
REC CUR ADJ
TRICK H
REC C
16
99
PB
BGA-B
REC
BGA
PB
BGA-A
B
PA
REC
APC
APC
67
66
VCO
65
62
60
SLD
X201
3.579545MHz
RF SWP
RF ENV
ENV SW
HA SWP
C SYNC
98
RW SWP
97
HA SWP
96
C ROT
SERIAL
DECODER
20
21
C ROT
IC160 15
I2C CLK
IC160 71
I2C DATA
IC160 72
JS202
Q502
OSD
OSD
OSD V IN
50
C VIDEO IN
56
52
OSD V OUT
IC160
(1/3)
BUFFER
Q561
RF VIDEO
TU701 5
25
Q VD
Q VD
IC160 13
BLOCK
FROM
SYSCON
(SEE PAGE 3-6)
(SEE PAGE 3-5)
1
1
(SEE PAGE 4-23)
(SEE PAGE 3-5)
(SEE PAGE 3-6)
(SEE PAGE 4 – 7, 9)
IC201
#¶
REC
1.0Vp-p
H
IC201
@•
REC/PB
4.2Vp-p
H
IC260
4
REC/PB
3.6Vp-p
V
IC260
!º
REC
480mVp-p
H
IC260
9
REC
0.1
µ
sec/div
50mV/div
IC260
7
PB
0.4Vp-p
V
IC201
1
PB
0.4Vp-p
IC260
@™
REC
0.1
µ
sec/div
0.5V/div
IC201
2
REC
480mVp-p
H
IC201
@£
PB
480mVp-p
H
IC201
@ª
REC
2.2Vp-p
H
IC201
@ª
PB
2.3Vp-p
H
IC160
%™
OSD V OUT PB
2.3Vp-p
H
IC160
%™
2.2Vp-p
H
OSD V OUT
REC
REC
IC160
%º
OSD V IN REC
IC160
%º
OSD V IN PB
2.2Vp-p
2.3Vp-p
H
H
IC160
%§
2.1Vp-p
H
C VIDEO IN
REC/PB
REC/PB
IC201
^¶
REC/PB
460mVp-p
3.579545MHz
IC201
(•
1.5Vp-p
30Hz
RF SW P
REC/PB
REC/PB
SLV-772HF/779HF
3-3. SERVO/SYSTEM CONTROL/TUNER BLOCK DIAGRAM
3-5
3-6
MA-341 BOARD
DRUM MOTOR
OUTPUT
HALL
DEVICE
M901
M902
HALL
DEVICE
U+
OUTPUT
MATRIX
M
VCC
1
2
3
4
PG
FG
CAPSTAN
FG
U-
V+
V-
W+
W-
U
LIMITER
SW5V
V
W
VM
VCC
TL
1
6
5
2
3
7
1
6
5
2
3
7
CN102
SW5V
M12V
PS101
CVS
CAP RVS
CAP FG
D109
1
2
3
4
CN101
M12V
M12V
D VS
D PG
D FG
1
CN161
3
CTL
HEAD
1
CN103
3
2
M
CAM
MOTOR
4
2
3
1
CAM
ENCODER
MECHA
POSITION
CN103
MODE1
MODE2
MODE3
MODE4
IC160
SERVO CONTROL
(2/3)
DRUM ERR
77
DRUM PG
90
DRUM FG
89
CAP RVS
24
CAP FG
87
CTL +
95
CTL -
94
LOADING
MOTOR DRIVE
IC101
CAM -
2
CAM +
10
4
IN2
SYSTEM CONTROL
(3/3)
S REEL FG
79
PH102
T REEL
FG
LED
DRIVE
Q103
T REEL FG
80
4fSC IN
38
SW12V
PH101
S REEL
FG
T/S LED
D103
T SENS
7
S SENS
6
END LED
20
Q101
TAKE END
SENSOR
D103
D5V
Q102
SUPPLY END
SENSOR
REC PRF
30
4fSC OUT
39
X160
14.31818MHz
REC
PROOF
S101
CAM
33
29
28
27
26
MODE1
MODE2
MODE3
MODE4
MODE1
MODE2
MODE3
MODE4
16
CAPSTAN
MOTOR
CAP ERR
76
S102
REMOTE
CONTROL
RECEIVER
2
RESET
PULSE
PULSE
GEN.
POWER
FAIL
DET.
6
8
5
7
1
IC162
IC403
L162
D162
D6V
VCC
37
AVCC
99
AMP VCC
98
RST
34
POWER FAIL
78
32kHz IN
35
32kHz OUT
36
X160
32.768kHz
REMCON
14
L161
D161
L163
UNSW 5V
D5V
S401,402,404,405
CN404
CN471
S408,412,422,423
OSC IN
44
OSC OUT
45
L500
Q VD
13
C SYNC
58
V RF ENV
8
ENV SW
17
HA SWP
16
RF SWP
18
I2C DATA
72
I2C CLK
71
C SYNC
,IC260 5
Q VD
IC201 25
RF ENV
IC260
6
ENV SW
IC260
2
HA SWP
,IC260 3
RF SWP
,IC260 4
I2C DATA
IC201 20
I2C CLK
IC201 21
IC201 97
IC201 28
IC201 98
AF ENV
IC360 44
AF ENV
9
I2C DATA
IC360 42
I2C CLK
IC360 43
AF SWP
19
AF REC P
22
A MUTE
63
AF SWP
IC360 41
A MUTE
,IC360 94
TO/FROM
VIDEO
BLOCK
TO/FROM
TO AUDIO BLOCK
AUDIO
BLOCK
Q301 B
3 CH
4 CH
S701
RF UNIT
IC160
IC160
5
VIDEO
1
A
UDIO
28
DET
37
R
IN
OUT
VHF/
UHF
TU701
D
ATA
13
CLOCK
12
ENABLE
11
AFT
27
CONT
4
SW
2
38
L
ST IND
32
SAP IND
33
MODE
34
F MONO
35
MUTE
36
59
PLL CLK
60
PLL DATA
61
PLL ENABLE
3
TU AFT
21
ANT SEL
85
STEREO
86
SAP
83
MAIN/SAP
84
F MONO
62
TA MUTE
31
I2C CLK
32
I2C DATA
5
6
EEPROM
IC161
VACUUM FLUORESCENT
INDICATOR TUBE
ND420
69
S IN
IC420
FL DRIVER
68
S OUT
70
S CLK
66
FLD CS
15
30
43
38
D OUT
5
D IN
6
CLK
8
CS
9
S1
S16
G2
G7
F –
F +
FUNCTION
KEY
5
FUNC KEY1
4
FUNC KEY2
RF VIDEO Q500
C
TU VIDEO IC201 39
RF AUDIO IC360 13
AUDI R
IC360
3
AUDIO L
IC360
2
FROM
VIDEO
BLOCK
TO/FROM
AUDIO
BLOCK
3
3
4
2
4
2
REW
PB/STOP
FF
FUNCTION
KEY
S442,443,444,446
DM-84 BOARD
1
LED
DRIVE
Q401
64
P CONT M12
65
P CONT SW12
P CONT M12
P CONT SW12
POWER
D405
TO
POWER BLOCK
C ROT
15
C ROT
IC201 96
(SEE PAGE 4-22)
(SEE PAGE 4-11,15)
(SEE PAGE 3-4)
(SEE PAGE 3-7)
(SEE PAGE 3-8)
(SEE PAGE 3-10)
(SEE PAGE 3-3)
(SEE PAGE 3-7)
IC160
(º
4.4Vp-p
DRUM PG
REC/PB
REC/PB
30Hz
IC160
*ª
4.0Vp-p
360Hz
DRUM FG
REC/PB
REC/PB
IC160
#ª
5.0Vp-p
14.31818MHz
4fsc (out)
REC/PB
REC/PB
IC160
#§
2.9Vp-p
32kHz (OUT)
REC/PB
REC/PB
32.768kHz
IC160
$∞
4.6Vp-p
24.9MHz
OSC OUT
REC/PB
REC/PB
IC160
%•
4.2Vp-p
H
C SYNC
REC/PB
REC/PB
SLV-772HF/779HF
3-4. AUDIO BLOCK DIAGRAM
3-7
3-8
CJ561
LINE
OUT
OUT
AUDIO
R
L
MA-341 BOARD
2
1
3
CN260
DRUM
AUDIO
HEAD
CH1
CH2
PNR
L
MUTE
INPUT SEL
LEVEL
DET
VCO
MUTE
IC360
AUDIO
PROCESSOR
(HIFI)
44
6
7
3
2
SCL
43
SD
A
42
R
L
AUDIO
CJ561
LINE 1
IN
BIAS
ERASE
OSC
T301,Q303
CN301
4
3
1
ERASE
AUDIO
REC/PB
HEAD
NOMAL
AUDIO
HEAD
SW
4
2
IC331
1
FULL
HEAD
CN302
HEAD
IC201
AUDIO
PROCESSOR
(MONO)
MUTE
LINE
AMP
ALC
93
92
EQ
REC
REC
REC
84
87
REC:EP,LP
PB:EP
86
85
AUTO
BIAS
89
88
AUTO
A-H SW
74
76
78
MUTE
Q382
(2/2)
16
37
35
36
H
L
BPF
VCO
PNR
R
10 11
41
OUTPUT SEL
MUTE
NA IN
NA OUT
16
15
17
18
14
13
22
21
L1
L2
TU
BIAS
SW
Q302
AUDIO
ERASE
HEAD
P
R
A MUTE
VREF
80
94
81
82
1
CN270
CHECK
HF ADJ
MUTE
Q381
MUTE
SW
Q380
C389
RF AUDIO
1
TU701
TO
TUNER
BLOCK
A MUTE
IC160 63
FROM
SYSCON
BLOCK
FROM/TO
SYSCON
BLOCK
TU AUDIO L
TU701 38
I2C DATA
IC160 72
I2C CLK
IC160 71
AF ENV
IC160
9
AF SWP
AF REC P
IC160
IC160
19
TU AUDIO R
TU701 37
FROM
TUNER
BLOCK
22
(SEE PAGE 4-9,13)
(SEE PAGE 3-6)
(SEE PAGE 3-5)
(SEE PAGE 3-5)
(SEE PAGE 3-6)
BOARD
MF-316
3
CNJ491
CN491
L2 R
CN423
LINE 2
IN
R
L
AUDIO
5
L2 L
3
5
(SEE PAGE 4-23)
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