Sony SLV-662HF Operating Instructions (SLV-662HF / 679HF / 679HF PX VCR), Service Manual

Page: 33 / 72

SLV-662HF/679HF
3-3. SERVO/SYSTEM CONTROL 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
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
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
DS-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 4-9,13)
(SEE PAGE 3-4)
(SEE PAGE 3-7)
(SEE PAGE 3-8)
(SEE PAGE 3-10)
(SEE PAGE 3-4)
(SEE PAGE 3-8)
IC160
#¢
5.0Vp-p 14.31818MHz
4fsc (out)
REC/PB
IC160 $∞
4.6Vp-p 24.9MHz
OSC OUT
REC/PB
IC160
%•
4.2Vp-p H
C SYNC
REC/PB
IC160
*ª
4.0Vp-p
360Hz
DRUM FG
REC/PB
IC160
(º
4.4Vp-p
DRUM PG
REC/PB
30Hz
IC160
#§
2.9Vp-p
32kHz (OUT)
REC/PB
32.768kHz