Sony SLV-M20HF Service Manual ▷ View online
2-3
2-6. INTERNAL VIEWS
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— Bottom View —
M901
Drum Assembly DZH-94A/Z-RP
8-839-044-02
Drum Assembly DZH-94A/Z-RP
8-839-044-02
FE head
1-500-144-11
1-500-144-11
Reel (S) table
3-977-507-01
3-977-507-01
FL complete assembly
A-6759-619-C
A-6759-619-C
Reel (T) table
3-977-508-01
3-977-508-01
Pinch press block assembly
A-6759-615-A
A-6759-615-A
ACE head block assembly
A-6759-620-A
A-6759-620-A
M902
DC motor (capstan)
1-698-971-11
DC motor (capstan)
1-698-971-11
M901
Drum Assembly
DZH-94A/Z-RP
8-839-044-02
Drum Assembly
DZH-94A/Z-RP
8-839-044-02
Rubber belt
3-977-510-01
3-977-510-01
M903
Cam motor assembly
X-3947-577-1
Cam motor assembly
X-3947-577-1
2-4E
2-7. CIRCUIT BOARDS LOCATION
MA-335B
REC/PB AMP, VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER
REC/PB AMP, VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER
FR-139B
(MODE CONTROL)
(MODE CONTROL)
DM-81A
(OPERATION SWITCHES)
(OPERATION SWITCHES)
POWER BLOCK SR821
AJ-2A
(LINE-2 IN)
(LINE-2 IN)
MG-21
SMART FILE,
GUIDE PLUS
SMART FILE,
GUIDE PLUS
AN-17A
FRONT
SMART FILE
SENSOR
FRONT
SMART FILE
SENSOR
AN-16A
INNER SMART FILE
SENSOR/WRITER
INNER SMART FILE
SENSOR/WRITER
SLV-M20HF
SECTION 3
BLOCK DIAGRAMS
3-1. OVERALL BLOCK DIAGRAM
3-1
3-2
BOARD
AJ-2
LINE 2
IN
CJ801
VIDEO
MA-335 BOARD
LINE 1
IN
CJ570
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 ROT
C SYNC
CH 1
CH 2
AUDIO
HEAD
AFM
REC/PB
QAMP
IC340
VIDEO
HEAD
BOARD
AJ-2
LINE 2
IN
CJ801
LINE 1
IN
CJ570
AUDIO
L 1(L)
R
L
L 1(R)
AUDIO
L 2(L)
R
L
L 2(R)
AF SWP
AF REC
REC P
FM PB
FM REC
AUDIO
PROCESSOR
IC360
(HIFI)
AUDIO
PROCESSOR
(MONO)
IC201
(2/2)
NORM IN
NORM OUT
AF ENV
AF SWP
I2C CLOCK 1
I2C DATA 1
A L
A R
RF AUDIO
TU L
TU R
S OUT 1
S CLK 1
RF ENV
RF SWP
REC/
PB
ERASE
HEAD
BIAS
ERASE
OSC
T331,Q330
HEAD
NORMAL
AUDIO
FULL
ERASE
HEAD
VIDEO
AMP
IC403
A HEAD PB
A HEAD REC
OSD
IC500
AFC
IC501
HD
H DET
VIDEO
SCK 0
SO 0
I2C DATA VIDEO
I2C CLOCK VIDEO
TU VIDEO
Q VD
1H
DELAY
IC202
LINE
OUT
OUT
CJ570
VD
L
R
VIDEO
AUDIO
RF VIDEO
Q560
VHF/
UHF
UHF
RF CH
S701
3CH
4CH
IN
OUT
IN
RF
TU700
TUNER/MOD/IF
RF VIDEO
TU VIDEO
RF AUDIO
MPX
AFT
PLL CLOCK
PLL ENB
TV/VTR
S VHS
S OUT 1
S CLK 1
RF ENV
RF SWP
AF ENV
AF SWP
I2C CLOCK 1
I2C DATA 1
ST/BILNG
PROCESSOR
IC733
AF SWP
AF REC
REC P
F MONO,MAIN/SAP
SAP,STEREO
MPX
PLL DATA
Q VD
AFT
REC P
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
IC100
CAPSTAN
FG
DRUM
PG
DRUM
FG
M
DRUM
MOTOR
M
CAPSTAN
MOTOR
CAP FG
CAP VS
D FG
D PG
D VS
IC100
DRUM MOTOR
CAPSTAN MOTOR
CTL
AMP
LOADING
MOTOR
IC140
IC141
IC101
M
LOADING
MOTOR
CTL
AMP
ROTARY
SWITCH
SWITCH
CTL REC/PB
CAM +,-
MODE1-4
SERVO
CAPSTAN
SIRCS
CBC I/O
IC980
NICOLON
CBC POWER
IN
OUT
CABLE BOX
CONTROL/
CONTROL S
CNJ981
CNJ980
FAIL DET
POWER
IC463
PULSE GEN
RESET
INDICATOR TUBE
FLUORESCENT
ND420
-F
+F
IC464
CONTROL
REMOTE
RECEIVER
BLOCK
DMS
KEY
FUNCTION
KEY
FUNCTION
KEY
FUNCTION
S411,412
S441-443
S403-410
BOARD
DM-81
PAUSE
A/D0-2
A/D3
DMS1,2
IC460
CONTROL
MODE
IC462
EEPROM
SI 0
SO 0
SCK 0
H DET
SIRCS
SIRCS IN
SIRCS OUT
16
SI 0
SO 0
SCK 0
(SEE PAGE 4-32)
(SEE PAGE 4-5,8,11,15,17,19,21,23,25)
(SEE PAGE 4-32)
S VHS
C SYNC
FR-139 BOARD
(SEE PAGE 4-29)
(SEE PAGE 4-31)
IN
CPD
CNJ001
G-LINK
CNJ301
IC003
SMARTFILE
CONTROL
IC402
RAM
IC002
IC001
SMARTFILE
SENSOR
BLOCK
BOARD
AN-16
BOARD
AN-17
IC401
ROM
SI 0
SO 0
SCK 0
BOARD
MG-21
(SEE PAGE 4-37)
(SEE PAGE 4-34)
(SEE PAGE 4-33)
/SERIAL
TRANSFER
CONTROL
MANCHESTER
CODE
MOD./DEMOD.
IC502
VIDEO
ENCODER
IC331
VIDEO SW
IC301
GUIDE
PLUS
DECODER
SLV-M20HF
3-2. VIDEO BLOCK DIAGRAM
3-3
3-4
IC500
OSD
BOARD
AJ-2
VIDEO
MA-335 BOARD
1
CJ801
CN801
L2 V
1
CN423
TU700 36
FROM/TO
TUNER
BLOCK
BLOCK
TU V
CLP
CLP
CLP
34
28
32
30
35
DRUM
VIDEO
HEAD
SP
CH1
SP
CH2
EP
CH1
EP
CH2
CN260
ENV
DET
DET
3
2
5
6
13
14
11
10
18
SW7
SW3
SW3
PB
PB
SW8
SW4
SW10 SW6
PB
PB
SW9
SW5
4
12
SW1
SW2
REC
REC
COMP
LOGIC
HPF
REC
IDEL
26
16
29
19
20
17
21
VCA
C SYNC
DATA
CLOCK
RF SWP
C ROT
L263
L262
SW5V
2
3
CN261
CHECK
PIN
REC CURR
PB RF
RF SWP
10
7
6
9
8
13
12
11
1
IC260
VIDEO REC/PB AMP
Y/C 1
Y/C 2
Y/C 3
IC201
Y/C PROCESSOR
VIDEO
AGC
SUNC
SEP
37
Y/C
MIX
R
P
R
P
QH/QV
INS
R
P
VIDEO
AMP
SEP
Y NR
CLP
38
40
42
43
NT
R
P
5
12
1H
DL
7
10
CLK
Q209
BUFFER
IC202
(1/2)
Q505
BUFFER
C ROT
66
15
PB Y/C
KIL
SEQ
C
LPF
14
20
P
R
P
R
ACC
AMP
MAIN
COMV.
N
S
P
R
16
18
REC RF
FM
AGC
DEM
P
R
BPF
DL
EQ
3
1H
DL
DL
13
Q210
BUFFER
48
25
IC202
(2/2)
1
50
DE
EMPH.
Q208
52
26
CLP
DE
EMPH.
FM
MOD
REC
EQ
R
P
R,A
B
R
P
VXO1
56
55
X201
10 VCO I
(1/2)
L206
L204
47
C VCC
36
Y VCC
SW5V
V IN
3
13
10
V SYNC
12
H SYNC
H SYNC
25
8
DET
IC501
AFC
EXS
8
XS
9
X500
14.318MHz
18
CS
22
S CLK
23
S IN
11 VCO O
X501
11
V SYNC
VIDEO
2
YOUT
30
RF ENV
IC160 60
C SYNC
IC160 66
S OUT1
IC160 80
S CLK1
IC160 81
RF SWP
IC160
1
FROM/TO
SYSCON
BLOCK
Q810
BUFFER
Q809
SW
BUFFER
Q804,D801
Q806-808
Q805
21
SP
SW
WAVE
SHAPER
PB RF
EQ AMP
Q851-854
CLAMP
Q855-857
Q802,803
Q260
BUFFER
C
TRAP
22
28
PB RF
REC RF
Q201
BUFFER
24
AGC
27
Q801
BUFFER
3.579MHz
Q211
BUFFER
VD 5
HD 9
FSC
BPF
BPF
46
45
33
Q502
BUFFER
Q503
BUFFER
Q560
P CONT1
CN162 21
RF VIDEO
TU700 5
HDET
CN162 2
CG CS
CN164 12
CG V
CN164 23
Q VD
IC160
4
I2C DATA VIDEO
IC160 28
SERIAL
DECODER
64
I2C CLOCK VIDEO
IC160 30
63
FROM/TO
SYSCON
BLOCK
TO
TUNER
BLOCK
BLOCK
LINE 2
IN
CJ570
LINE 1
IN
VIDEO
CJ570
LINE
OUT
OUT
VIDEO
Q204
Q214
BUFFER
S VHS
DET
68
65
69
SW 5V
S VHS
IC160 12
IC201
@•
REC
1Vp-p
H
IC260
#º
REC
0.5V/Div
0.1
µ
sec/div
IC260
@•
REC
20mV/Div
0.1
µ
sec/div
IC260
@™
PB
200mV/Div
0.1
µ
sec/div
IC260
!•
REC/PB
IC260
!¶
REC/PB
2.3Vp-p
H
5Vp-p
30Hz
30Hz
5Vp-p
30Hz
30Hz
IC201
#¶
REC/PB
4Vp-p
H
IC201
$∞
PB
500mVp-p
H
IC201
#∞
REC
1Vp-p
H
IC201
#•
REC/PB
2Vp-p
H
IC201
%§
REC
3.579545MHz
550mVp-p
550mVp-p
IC201
%§
PB
3.579545MHz
500mVp-p
500mVp-p
IC201
$•
REC
IC201
%º
REC
0.23Vp-p
H
IC201
$•
PB
IC201
%º
PB
340mVp-p
H
IC201
@∞
REC
0.5Vp-p
H
IC201
!∞
PB
200mV/Div 0.1
µ
sec/div
CN261
3
PB
200mV/Div 0.1
µ
sec/div
CN261
1
REC
IC260
4
REC
1V/Div
0.1
µ
sec/div
CN261
2
PB
Q802
0.2V/Div
0.1
0.1
µ
sec/div
B
PB
IC500
3
,
@∞
REC/PB
2Vp-p
H
IC501
!º
REC/PB
503.5kHz
0.65Vp-p
IC500
9
REC/PB
5Vp-p
14.31818MHz
Q810
E
PB
0.1V/Div
0.1
µ
sec/div
(SEE PAGE 4-32)
(SEE PAGE 4-5,8,15,17,19)
(SEE PAGE 3-12)
(SEE PAGE 3-6)
(SEE PAGE
3-6)
3-6)
(SEE PAGE
3-11)
3-11)
SO 0
CN162 8
SCKO
CN162 6
3
5
1
7
CN501
TO/FROM
MG-21
BLOCK
MG-21
BLOCK
OSD V IN
OSD V OUT
OSD V SYNC
OSD H SYNC
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