Sony SLV-M20HF - Video Cassette Recorder, Service Manual

Page: 31 / 143

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
CJ570
VD
L
R
VIDEO
AUDIO
RF VIDEO
Q560
VHF/
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
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