Sony SLV-772HF / SLV-779HF Service Manual ▷ View online
SLV-772HF/779HF
3-5. POWER BLOCK DIAGRAM
3-9
3-10E
MOTOR
12V SW
Q604,605
12V
REG
2
1
4
IC601
SW 5V
REG
Q607
PS600
R705
VCC
40
AFM.
AUDIO PROC
IC360
T/S
REEL
CAPSTAN
MOTOR
IC160
SERVO/SYSTEM
CONTROL
LOADING
MOTOR
DRIVE
VCC1
8
VCC2
9
IC101
PS101
D109
CN101
MTR 12V
MTR 12V
SW 5V
CN102
DRUM
MOTOR
RESET
PULSE
GEN.
POWER
FAIL
DET.
VCC2
5
VCC1
7
IC162
FLUORESCENT
INDICATOR TUBE
ND420
F-
F+
7
1
1
L604
MA-341 BOARD
BIAS
SW
Q302
IC331
P CONT
P CONT
SW5V
MTR12V
SW12V
+30V
D6V
HEAD SW
VCC
1
T/S
SENSOR
Q101,102
PH101,102
L101
16
LINE
FILTER
RECT
F600
AC
IN
D600
LF600
+B
ADJ
IC602
PHOTO
INTERRUPTER
PH600
D609
3
1
CN600
SWITCHING
REG.
Q601,602
L601
D608
L602
D607
L603
D606
POWER
TRANS
T600
NA 5V
REG
Q608
NA5V
REG
CONT
Q603
30V
17
5V
3
5V
15
TU701
L704
L703
L304
L203
L206
L205
L204
Y VCC
9
C VCC
58
CCD VCC
56
SW VCC
40
A VCC
75
Y/C PROC
AUDIO PROC
IC201
BIAS
ERASE
OSC
T301,Q303
VCC
34
L360
P CONT SW12
65
P CONT M12
64
AMP VCC
98
L161
D161
L162
D162
L163
5
8
VCC
37
AVCC
99
RESET
5
P FAIL
78
L501
OSD VCC
53
IC161
EEPROM
VCC
8
IC420
FL DRIVER
L420
VDD
14
VDD
33
VDD
45
VEE
34
POWER
D405
IC403
REMOTE
CONTROL
RECEIVER
VCC
2
MTR 12V
R614
L606
L605
(SEE PAGE 4 – 19)
4-1
SLV-772HF/779HF
SECTION 4
PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
(For printed wiring boards)
•
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Through hole is omitted.
• Circled numbers refer to waveforms.
• There are few cases that the part printed on diagram
• Circled numbers refer to waveforms.
• There are few cases that the part printed on diagram
isn’t mounted in this model.
• Chip parts.
(For schematic diagrams)
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF :
µµ
F.
50V or less are not indicated except for electrolytics and
tantalums.
tantalums.
• Chip resistors are 1/10W unless otherwise noted.
k
Ω
=1000
Ω
, M
Ω
=1000k
Ω
.
• Caution when replacing chip parts.
New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum capacitor, Be-
Be careful not to heat the minus side of tantalum capacitor, Be-
cause it is damaged by the heat.
• Some chip part will be indicated as follows.
Example
C541
L452
22U
10UH
TA A
2520
• Constants of resistors, capacitors, ICs and etc with XX indicate
that they are not used.
In such cases, the unused circuits may be indicated.
• Parts with
★
differ according to the model/destination.
Refer to the mount table for each function.
• All variable and adjustable resistors have characteristic curve B,
unless otherwise noted.
• Signal name
XEDIT
→
EDIT
PB/XREC
→
PB/REC
•
2
: non flammable resistor
•
1
: fusible resistor
•
C
: panel designation
•
: internal component.
•
U
: B+ Line.
•
V
: B– Line.
• Circled numbers refer to waveforms.
• Readings are taken with a color-bar signal input.
• Voltage are dc between ground and measurement points.
• Readings are taken with a digital multimeter (DC10M
• Readings are taken with a color-bar signal input.
• Voltage are dc between ground and measurement points.
• Readings are taken with a digital multimeter (DC10M
Ω
).
• Voltage variations may be noted due to normal production
tolerances.
•
C
: adjustment for repair.
• Circled numbers refer to waveforms.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
C
B
E
5
6
4
2
1
3
5
4
6
2
3
1
4
5
2
3
1
1
2
4
5
3
3
2
1
3
2
1
3
2
1
Transistor
Diode
Kinds of capacitor
Temperature characteristics
External dimensions (mm)
When indicating parts by reference
number, please include the board name.
number, please include the board name.
Note :
The components identified by
mark
The components identified by
mark
!
or dotted line with mark
!
are critical for safety.
Replace only with part number
specified.
specified.
Note :
Les composants identifiés par
une marque
Les composants identifiés par
une marque
!
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
Ne les remplacer que par une
pièce portant le numéro spécifié.
4-2
1
IC260
4
REC/PB
2
IC260
5
REC/PB
3
IC260
7
PB
4
IC260
9
REC
5
IC260
!º
REC
6
IC260
@™
REC
3.6Vp-p
V
3.4Vp-p
H
0.4Vp-p
V
480mVp-p
0.1
µ
sec/div
50mV/div
0.1
µ
sec/div
0.5V/div
H
MA-341
BOARD
(VIDEO BLOCK (IC260))
7
IC160
#ª
8
IC160
$∞
9
IC160
%º
OSD V IN REC
9
IC160
%º
OSD V IN PB
!º
IC160
%™
OSD V OUT PB
!¡
IC160
%§
!™
IC160
%•
!£
IC160
*ª
!¢
IC160
(º
!∞
IC160
(¶
!§
IC160
#§
5.0Vp-p
2.1Vp-p
4.2Vp-p
4.0Vp-p
4.4Vp-p
4.0Vp-p
2.9Vp-p
360Hz
14.31818MHz
4.6Vp-p
24.9MHz
2.2Vp-p
2.3Vp-p
H
H
H
H
2.3Vp-p
H
4fsc (out)
REC/PB
REC/PB
OSC OUT
REC/PB
REC/PB
!º
IC160
%™
2.2Vp-p
H
OSD V OUT
REC
REC
C VIDEO IN
REC/PB
REC/PB
C SYNC
REC/PB
REC/PB
DRUM FG
REC/PB
REC/PB
DRUM PG
REC/PB
REC/PB
30Hz
30Hz
CTL AMP OUT
REC/PB
REC/PB
32kHz (OUT)
REC/PB
REC/PB
32.768kHz
MA-341
BOARD (SERVO/SYSTEM CONTROL BLOCK)
SLV-772HF/779HF
4-3
4-4
4-1. FRAME SCHEMATIC DIAGRAM
FRAME SCHEMATIC DIAGRAM
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