Sony SLV-M20HF Service Manual ▷ View online
SLV-M20HF
3-3. SERVO/SYSTEM CONTROL BLOCK DIAGRAM
3-5
3-6
DRUM MOTOR
OUTPUT
HALL
DEVICE
CAPSTAN MOTOR
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
IC100
CAP ERR
INTEG
D107
1
3
2
REF 2.5V
(2/2)
IC100
CAP ERR
INTEG
7
5
6
REF 2.5V
(1/2)
D109
1
2
3
4
CN101
M12V
M12V
D VS
D PG
D FG
6
1
3
IC141
CTL AMP
CTL
REC/PB
AMP
GAIN
SW
Q140
7
2
IC140
CN301
5
CTL
HEAD
1
CN103
3
2
M
LOADING
MOTOR
4
2
3
1
CAM
ENCODER
MECHA
POSITION
(
(
CN103
MODE1
MODE2
MODE3
MODE4
IC161
SERVO CONTROL
(1/2)
DRUM DA
74
DRUM PG
68
DRUM FG
69
STEP PLS
99
CAP STOP
35
CAP DA
73
CAP RVS
72
CAP FG
70
REC CTL
7
PB CTL
67
CAP TRQ PWM
84
CTL HYSHIGH
92
CTL RESET
8
L101
LOADING
MOTOR DRIVE
IC101
VCC1
8
VCC2
9
CAM+
2
CAM-
10
3
IN1
4
IN2
M12V
IC161
SYSTEM CONTROL
(2/2)
S REEL FG
63
PH102
T REEL
FG
LED
DRIVE
Q103
L161
AVREF
53
AVDD
54
VDD
89
5V
90
D161
D6V
T REEL FG
64
XTAL
42
SW12V
PH101
S REEL
FG
T/S LED
D103
T SENS
61
S SENS
62
T/E LED
32
Q101
TAKE END
SENSOR
D103
D6V
Q102
SUPPLY END
SENSOR
REC PRF
15
EXTAL
43
X160
16MHz
REC
PROOF
S101
CAM2
9
22
21
20
19
MODE1
MODE2
MODE3
MODE4
MODE1
MODE2
MODE3
MODE4
28
SDA 0
30
SCL 0
31
A MUTE
59
AF ENV
100
AF SWP
2
AF REC P
96
AF REC
12
S VHS
60
RF ENV
66
V SYNC
80
DATA(SSB)
81
CLOCK(SSB)
1
RF SWP
77
REC CONT
45
S IN 0
4
Q VD
P CONT1
P CONT2
IC980
SIRCS/CBC
I/O
REG
ON/OFF
ON/OFF
12
STATUS
6
S IN
4
S OUT
5
9
CONTROL
S OUT
11
CONTROL
S IN
1
REG OUT
IN
OUT
CABLE BOX
CONTROL/
CONTROL S
CNJ981
CNJ980
46
S OUT 0
47
S CLK
40
ASURA RESET
44
ASURA CS
26
TV/VTR
11
TA MUTE
50
F MONO
5
I2C CLOCK1
IC360 42
FROM/TO
VIDEO
BLOCK
I2C DATA1
IC360 41
A MUTE
IC201 70
AF ENV
IC360 39
AF SWP
IC340
1
AF REC P
IC340
4
AF REC
IC340
5
Q214
I2C DATA VIDEO
IC201 64
I2C CLOCK VIDEO IC201 63
RF ENV
IC260 26
C SYNC
IC201 37
S OUT1
IC260 19
S CLK1
IC260 20
RF SWP
IC260 17
Q VD
IC201 33
FROM/TO
AUDIO
BLOCK
,IC260 18
,IC360 40
S O 0
IC500 23
S I 0
IC871 17
S CK 0
IC500 22
SYS RESET
IC871 19
VSET CS
IC871 32
H DET
IC501
8
CG CS
IC500 24
CG V
IC500 11
P CONT1
Q503
Q604
IC601
4
,IC871 16
,IC871 15
TO
POWER
BLOCK
49
CBC POWER
48
NICOLON
STEREO
IC733 11
TU AFT
TU700 33
PLL DATA
TU700 21
PLL ENABLE
TU700 22
TV/VTR
TU700 4
SAP
IC733 10
MAIN/SAP
IC733
8
F MONO
IC733
7
TA MUTE
IC733
5
PLL CLOCK
TU700 20
FROM/TO
TUNER
BLOCK
2
3
22
21
23
12
2
18
20
6
8
7
19
15
14
13
11
16
17
4
9
10
CN162
LANC OUT
LANC IN
SIRCS OUT
SIRCS IN
P CONT2
P CONT1
CG V
CG CS
H DET
VSET CS
SYS RESET
S CK 0
S O 0
S I 0
ASURA CS
PLL ENABLE
PLL CLOCK
PLL DATA
TU AFT
MAIN/SAP
SAP
STEREO
BLOCK
TO/FROM
MODE
CONTROL
3
4
D6V
CN165
FOR
CHECK
16
(SEE PAGE 4-8, 11, 26)
(SEE PAGE 3-8)
(SEE PAGE
3-3, 4)
3-3, 4)
(SEE PAGE 3-9)
(SEE PAGE 3-12)
S VHS
,IC201 65
MA-335 BOARD
IC161
1
REC/PB
IC161
IC161
$£
REC/PB
3Vp-p
16MHz
16MHz
5Vp-p
30Hz
30Hz
IC161
&º
REC/ PB
IC161
^•
REC/PB
IC161
^ª
REC/PB
IC161
&£
REC/PB
IC161
&¢
REC/PB
IC161
7
REC
IC161
^¶
REC
5Vp-p
360Hz
360Hz
5Vp-p
360Hz
360Hz
5Vp-p
1.078kHz
1.078kHz
5Vp-p
30Hz
30Hz
5Vp-p 360Hz
4Vp-p 30Hz
5Vp-p
30Hz
30Hz
100
SLV-M20HF
3-4. AUDIO BLOCK DIAGRAM
3-7
3-8
BOARD
AJ-2
3
CJ801
CN801
L2 R
CN423
LINE 2
IN
CJ570
LINE
OUT
OUT
AUDIO
R
L
MA-335 BOARD
2
1
3
3
CN260
DRUM
AUDIO
HEAD
CH1
CH2
17
4
REC MUTE
IC340
AFM
REC/PB
AMP
L341
18
24
20
AGC
DET
DET
13
14
16
VCC
SW5V
3
9
1
H SW
5
REC
CA
HA
HA
REC ON
EP
SP
AGC
AMP
PB ON
VCC
VCC
1
CN341
FM PB
HF ADJ
FOR
CHECK
36
37
AGC
AMP
VCO
HF
LPF
PNR
L
MUTE
OUTPUT
SEL
INPUT SEL
LEVEL
DET
VCO
HF
LPF
PNR
L
15
14
MUTE
16
17
MUTE
12
13
NORMAL IN
NORMAL OUT
21
20
35
SW12V
SW12V
SW12V
FM PB
FM REC
IC360
AUDIO
PROCESSOR
(HIFI)
39
5
6
3
4
SCL
42
SDA
41
AF SWP
40
AGC
R
L
AUDIO
CJ570
LINE 1
IN
R
L
AUDIO
5
L2 L
3
5
BIAS
ERASE
OSC
T331,Q331
CN301
1
2
4
ERASE
ERASE
HEAD
AUDIO
REC/PB
HEAD
NOMAL
AUDIO
HEAD
SW
4
2
IC301
1
FULL
HEAD
CN302
HEAD
SW5V
SEL
1
2
IC201
AUDIO
PROCESSOR
(MONO)
MUTE
CTL
MUTE
LINE
AMP
77
PB
PB
ALC
10
11
8
9
PB:
LP,SP
EQ
76
AVCC
REC
SW5V
REC
REC
79
1
5
REC:EP,LP
PB:EP
4
3
AUTO
BIAS
BIAS
SW
Q301
6
70
7
80
AUTO
A-H SW
75
73
71
MUTE
MUTE
SW
MUTE
Q387
Q386
Q379
RF AUDIO
TU700 1
FROM/TO
TUNER
BLOCK
BLOCK
TU AUDIO L
IC733
3
TU AUDIO R
IC733
4
(2/2)
FROM/TO
SYSCON
BLOCK
16
A MUTE
IC161 31
I2C DATA1
IC161 28
I2C CLOCK1 IC161 30
AF ENV
IC161 59
AF SWP
IC161 100
AF REC P
IC161
2
AF REC
IC161 96
(SEE PAGE 4-5, 21)
(SEE PAGE 4-32)
(SEE PAGE 3-11, 12)
(SEE PAGE 3-6)
SLV-M20HF
3-5. MODE CONTROL BLOCK DIAGRAM
3-9
3-10
CN460
31
EXTAL
SCL 0
26
FROM/TO
SYSCON
BLOCK
SIRCS OUT
SIRCS IN
P CONT 2
P CONT 1
CG V
CG CS
H DET
VSET CS
S CK 0
S O 0
S I 0
SYS RESET
ASURA CS
PLL ENABLE
PLL CLOCK
PLL DATA
TU AFT
LANC IN
LANC OUT
FR-139 BOARD
F+
F-
-30V
VACUUM FLUORESCENT
INDICATOR TUBE
ND420
FROM
POWER
BLOCK
6
SIRCS OUT
SIRCS IN
P CONT 2
P CONT 1
CG V
CG CS
H DET
VSET CS
S CK 0
S O 0
S I 0
SYS RESET
ASURA CS
PLL ENABLE
PLL CLOCK
PLL DATA
AFT
LANC IN
LANC OUT
4
79
78
80
27
3
40
10
12
11
77
76
37
35
36
23
14
15
TIMER/TUNER
MODE CONTROL
IC460
REMOTE
CONTROL
RECEIVER
2
5
SDA
RESET
PULSE
PULSE
GEN.
POWER
FAIL
DET.
6
8
5
7
1
IC463
IC464
29
JOG LED
20
A/D 4
19
A/D 3
42
DMS 2
41
DMS 1
REW
S411
18
A/D 2
CH+
S407
COMMAND
MODE
VTR 1/2/3
17
A/D 1
16
A/D 0
S405
LED
DRIVE
Q460
POWER ON
D460
D5V
SDA 0
28
BUZZER
7
6
SCL
7
MODE
WP
13
IC462
EEPROM
BZ460
32
XTAL
73
TX
74
TEX
X460
16MHz
X461
32.768kHz
JOG LED
CN461
CN440
4
3
1
2
4
3
1
2
PAUSE
A/D 4
DMS 2
DMS 1
26
24
25
12
13
17
18
19
21
23
22
10
11
9
20
14
27
29
30
5
3
5
1
7
5
LED
DRIVE
Q440
JOG
D440
PAUSE
S444
S442
S443
JOG
REC
DM-81 BOARD
2
3
4
5
1
CN441
STOP
COM
DMS 2
DMS 1
PLAY
PLAY
STOP
DUAL MODE
SHUTTLE
16
L182
71
62
D462
D463
D6V
AVDD
24
VDD
72
VPP
75
RST
34
POWER FAIL
2
AV REF
25
MAIN/SAP
SAP
STEREO
MAIN/SAP
SAP DET
STEREO DET
38
39
5
16
15
28
44
59
G1
G10
SEG1
SEG16
CH
S409
S410
S406
INPUT
SELECT
CURSOR
S404
OK
S403
S408
EASY
SETUP
FF
S412
S441
EJECT
SMART
FILE
21
ML LED
LED
DRIVE
Q461
SMARTFILE
D464
D5V
S1
22
X CS
MUTE
CN464
CN004
2
3
5
1
6
7
8
4
SCK0
SO0
SI0
RESET
MUTE
SDA0
SCL0
X CS
SCK0
SO0
SI0
RESET
G RESET
X CS
8
7
5
9
4
3
2
6
CPD
IN
CNJ001
BOARD
AN-17
MG-21 BOARD
Q015
DSS IN
56
SCK0
48
SI0
49
31
32
SO0
50
RST
30
CS0
47
80
78
SDA0
SCL0
IC004
EEPROM
5
6
IC003
SMARTFILE CONTROL
IC002
53
SO1
52
SI1
51
SCK1
8
X RST
7
ANT SEL
9
REQ
10
TOTAGZ
60
SINT
14
GUIDE ON
15
MUTE
SI
44
SO
43
CLK
42
RST
5
ANT SEL
4
REQ
41
TOTAGZ
40
SINT
7
3
30
15 16 18
27
26
2
4
1
7
(FRONT)
SMARTFILE
SENSOR
(INNER)
SMARTFILE
SENSOR/WRITER
27
CAR L+
23
CAR L-
20
ANT L SW
21
MD L
31
CAR S+
29
CAR S-
37
ANT S SW
36
MD S
19
RD
IC001
Q001-003,005
Q007,010,016,017
Q004,006,008,009
Q011,012,018,019
Q011,012,018,019
CN001
2
1
2
1
1
VL+
VL-
CN101
BOARD
AN-16
CN002
2
1
2
1
1
VS+
VS-
CN201
15
XTAL
14
EXTAL
MUTE
BUFFER
IC502
IC331
IC401
IC311
IC311
IC311
IC301
IC402
X001
(SEE PAGE 4-31)
(SEE PAGE 3-6)
(SEE PAGE 4-29)
MANCHESTER CODE MOD./DEMOD.
/SERIAL TRANSFER CONTROL
13.56MHz
3
4
X502
4.03MHz
11
12
X501
14.31818MHz
30
26
30
71
70
69
36
39
26
66
67
X301
RAM
75
G LINK IN
G LINK OUT
OSCI
OSCO
76
77
78
79
1
(SEE PAGE 4-39,41,43)
(SEE PAGE 4-34)
(SEE PAGE 4-33)
8
48 49 50
53
H.VCO1
H.VCO2
CHR.VCO1
CHR.VCO2
VC.V.OUT
R.V.IN
VIDEO ENCODER
VIDEO SW
Q505
BUFFER
SYNC
SEP
Q351.352
2
11
·
14
21
22
33
30
·
·
25
23
ROM
G-LINK
CS0
D0
D7
A0
A17
RAS
NWE
CAS0
CAS1
Q302
CNJ301
R
G
B
DVL ENBL
R
G
B
DVL
Q353.354
EXTAL
XTAL
X002
16MHz
SDA
SCL
OSD V IN
TO/FROM
VIDEO
BLOCK
VIDEO
BLOCK
OSD V OUT
OSD V SYNC
OSD M SYNC
(SEE PAGE 3-4)
VIDEO H IN
VIDEO L IN
VIDEO IN
V SYNC IN
H SYNC IN
G RESET
SDA
SCL
GUIDE PLUS DECODER
C SYNC IN
IC502
3
H.VCO1
0.4Vp-p
4.03MHz
4.03MHz
IC502
!¡
CHR.VCO1
40mVp-p
14.31818MHz
IC002
!∞
3.3Vp-p
13.56MHz
13.56MHz
IC003
#™
3Vp-p
16MHz
16MHz
IC301
^§
OSCI
3.6Vp-p
4.0MHz
IC460
#™
REC/PB
4Vp-p
16MHz
IC460
&¢
REC/PB
2Vp-p
32.768kHz
32.768kHz
SLV-M20HF
3-6. TUNER BLOCK DIAGRAM
3-11
3-12
SPLITTER
RF
MOD
IN
OUT
TV
VTR
VHF/
UHF
TU700
2
5
1
4
TUNER/MOD/IF
7
F MONO
18
19
3
20
21
22
36
33
35
CH 4
CH 3
S701
RF CH
L704
L703
L731
SW5V
30V
MA-335 BOARD
IF
MPX
AFT
RF
30V
5V
5V
ENABLE
CLOCK
D
ATA
RV731
SEPARATION
VCC
1
MPX IN
12
IC733
ST/BILINGUAL
PROCESSOR
3
L
10
SAP IND
4
R
11
ST IND
8
MS0
5
MS1
5
MUTE
FROM/TO
SYSCON
BLOCK
RF AUDIO
IC360 12
RF VIDEO
Q560
FROM
VIDEO
BLOCK
FROM
AUDIO
BLOCK
TU VIDEO
IC201 32
TU AUDIO L
IC360
1
TU AUDIO R
IC360
2
F MONO
IC161 50
TA MUTE
IC161 11
MAIN/SAP
CN162 16
SAP
CN162 17
STEREO
CN162 4
TV/VTR
IC161 26
TU AFT
CN162 11
PLL DATA
CN162 13
PLL CLOCK
CN162 14
PLL ENABLE
CN162 15
TO
VIDEO
BLOCK
TO
AUDIO
BLOCK
16
(SEE PAGE 4-23)
(SEE PAGE 3-4)
(SEE PAGE 3-8)
(SEE PAGE 3-3)
(SEE PAGE 3-8)
(SEE PAGE
3-6)
3-6)
Q731
Click on the first or last page to see other SLV-M20HF service manuals if exist.