Block Diagram - Sony SLV-772HF Service Manual

3-3. SERVO/SYSTEM CONTROL/TUNER BLOCK DIAGRAM
MA-341 BOARD
M12V
D109
CN101
VCC 1 1
M901
OUTPUT
D VS
2 2
M OUTPUT
DRUM PG
IC160 (º
REC/PB
HALL
MATRIX
DEVICE
4.4Vp-p
30Hz
D PG
3 3
PG
DRUM MOTOR
FG
D FG
4 4
M12V M12V SW5V
SW5V
CN102 PS101
VM 7 7
U+
VCC 1 1
U-
LIMITER
HALL TL 6 6
V+
DEVICE
V-
W+
W-
U
CVS
M902 V 5 5
CAP RVS
W 2 2
CAPSTAN
CAPSTAN CAP FG
3 3
MOTOR FG
CN161
1
CTL
HEAD
3
CAM
MOTOR CN103 CN103
1
M 2
3
S102
MODE1
4
CAM
MODE2
ENCODER 3
MODE3
MECHA 2
MODE4
POSITION
1
16
(SEE PAGE 4-11,15)
UNSW 5V
D5V
L161
D161
D6V
D162 L162 L163
IC162
IC160 (2/3)
SERVO CONTROL
RESET
5 PULSE 6
77 DRUM ERR
GEN.
POWER
7 FAIL 8
DET.
IC403
REMOTE
2 CONTROL 1
RECEIVER
90 DRUM PG
SW12V
PH102
89 DRUM FG
T REEL
FG
DRUM FG
IC160 *ª
REC/PB
PH101
S REEL
FG
4.0Vp-p
360Hz
Q101
D5V
TAKE END
SENSOR
D103 D103
T/S LED
76 CAP ERR
Q102
24 CAP RVS SUPPLY END
SENSOR
Q103
LED
87 CAP FG
DRIVE
4fsc (out)
IC160 #ª
REC/PB
S101
REC
PROOF
95
CTL +
5.0Vp-p
14.31818MHz
X160
94 CTL -
14.31818MHz
32kHz (OUT)
IC160 #§
REC/PB
IC101
X160
LOADING
32.768kHz
MOTOR DRIVE
2 CAM -
32.768kHz 2.9Vp-p
IN2 4
10 CAM +
MODE1
MODE2
MODE3
MODE4
OSC OUT
IC160 $∞
REC/PB
L500
24.9MHz 4.6Vp-p
IC201 25
Q VD
IC201 28 ,IC260 5 C SYNC
IC260 6 RF ENV
TO/FROM
VIDEO IC260 2 ENV SW
BLOCK
IC201 97 ,IC260 3 HA SWP
(SEE PAGE 3-4)
IC201 98 ,IC260 4 RF SWP
IC201 96
C ROT
IC201 20 I2C DATA
IC201 21 I2C CLK
IC360 42 I2C DATA
TO/FROM
IC360 43
I2C CLK
AUDIO
BLOCK
(SEE PAGE 3-7)
IC360 44 AF ENV
IC360 41 AF SWP
TO AUDIO BLOCK
Q301 B ,IC360 94 A MUTE
(SEE PAGE 3-8)
3-5
IC160 IC160
(3/3)
SYSTEM CONTROL
37 VCC
99 AVCC
98 AMP VCC
34 RST
78 POWER FAIL
14 REMCON
PLL DATA 60
80 T REEL FG
PLL CLK 59
PLL ENABLE 61
TU AFT 3
ANT SEL 21
STEREO 85
79 S REEL FG
86
SAP
MAIN/SAP 83
F MONO 84
TA MUTE 62
7 T SENS
IC420
FL DRIVER
S1 15
S IN 69 5 D OUT
S16 30
S OUT 68 6 D IN
6 S SENS S CLK 70 8 CLK
G2 43
FLD CS 66 9 CS
G7 38
20 END LED
30 REC PRF
38 4fSC IN
39 4fSC OUT
35 32kHz IN
36 32kHz OUT
S401,402,404,405
33 CAM
S408,412,422,423
FUNCTION
FUNC KEY1 5
KEY
29 MODE1
28 MODE2
FUNC KEY2 4
27 MODE3
26 MODE4
44 OSC IN
IC161
45
OSC OUT
I2C DATA 32 5
EEPROM
I2C CLK 31 6
C SYNC
IC160 %•
REC/PB
13
Q VD
58 C SYNC
8 V RF ENV
4.2Vp-p
H
17 ENV SW
16 HA SWP
18 RF SWP
15 C ROT
Q401
D405
72 I2C DATA
LED
P CONT M12 64
DRIVE
71 I2C CLK POWER
P CONT M12
TO
9 AF ENV P CONT SW12 65 P CONT SW12 POWER BLOCK
(SEE PAGE 3-10)
19 AF SWP
22 AF REC P
63 A MUTE
5 1 28 38 37
S701
TU701
RF UNIT
IN
3 CH 4 CH
VHF/
UHF
OUT
2 SW
13 12 11 27 4 32 33 34 35 36
ND420
VACUUM FLUORESCENT
INDICATOR TUBE
F – F +
DM-84 BOARD
(SEE PAGE 4-22)
CN404
REW
4 4
FF
FUNCTION
2 2
KEY
PB/STOP
3 3
CN471 S442,443,444,446
1
3-6
SLV-772HF/779HF
FROM
C
RF VIDEO Q500
VIDEO
BLOCK
TU VIDEO IC201 39
(SEE PAGE 3-3)
RF AUDIO IC360 13
TO/FROM
AUDIO
AUDIO L IC360 2
BLOCK
3
AUDI R IC360 (SEE PAGE 3-7)