Sony SLV-772HF - Video Cassette Recorder User manual

US Model
SLV-779HF
Canadian Model
SLV-772HF/779HF
SERVICE MANUAL
VIDEO CASSETTE RECORDER
MICROFILM
S MECHANISM
SLV-772HF/ 779HF
RMT-V266
Refer to the SERVICE MANUAL ofVHS
MECHANICAL ADJUSTMENT for
MECHANICAL ADJUSTMENTS. (9-921-647-11)
SPECIFICATIONS
Photo: SLV-779HF
RMT-V266
G
j

SLV-772HF/779HF
4-7 4-8
VIDEO
MA-341(1/7)
MA-341 (1/7) (VIDEO) SCHEMATIC DIAGRAM
— Ref. No. MA-341 Board; 1,000 Series — For schematic diagram
• Refer to page 4-5 for printed wiring board.
• Refer to page 4-2 for waveforms.
MA-341
VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER, POWER SUPPLY
MF-316
(POWER, EJECT SWITCH)
DM-84
(TAPE OPARATION)
GND
EP_L_IN
_EP_OUT
PB FELT
EP_H_IN
10
11
20
13
MA-341 BOARD
CN101 H-9
CN102 F-3
CN103 B-6
CN104 B-12
CN161 A-13
CN260 I-10
CN270 I-11
CN301 G-12
CN302 G-12
CN403 B-12
CN404 B-1
CN423 I-12
CN600 I-3
D103 D-7
D109 G-4
D161 D-8
D162 D-8
D420 B-6
D561 I-4
D600 H-1
D601 G-3
D602 F-2
D603 G-2
D604 G-2
D605 F-1
D606 D-1
D607 E-1
D608 E-2
D609 E-2
D610 B-2
D611 C-3
D612 C-3
D618 C-3
D619 C-1
D702 H-13
IC101 A-4
IC160 C-10
IC161 C-12
IC162 C-12
IC201 F-10
IC260 H-10
IC331 G-11
IC360 J-9
IC420 A-7
IC601 B-2
IC602 E-1
IC980 H-4
PH101 C-9
PH102 C-6
PH600 F-1
Q101 E-3
Q102 E-11
Q103 E-7
Q201 H-9
Q202 G-8
Q203 F-9
Q302 G-11
Q303 G-12
Q380 J-8
Q381 J-7
Q382 J-8
Q500 C-9
Q502 C-8
Q561 I-6
Q601 G-2
Q602 H-1
Q603 C-3
Q604 B-1
Q605 C-1
Q607 B-3
Q608 F-6

SLV-772HF/779HF
MA-341 (2/7) (AUDIO) SCHEMATIC DIAGRAM
— Ref. No. MA-341 Board; 1,000 Series —
4-9 4-10
For schematic diagram
• Refer to page 4-5 for printed wiring board.
• Refer to page 4-2 for waveforms.
AUDIO
MA-341(2/7)
17
15
14
8
20
11

SLV-772HF/779HF
4-11 4-12
MA-341 (3/7) (SERVO/SYSTEM CONTROL) SCHEMATIC DIAGRAM
— Ref. No. MA-341 Board; 1,000 Series — For schematic diagram
• Refer to page 4-5 for printed wiring board.
• Refer to page 4-2 for waveforms.
SERVO/SYSTEM CONTROL
MA-341(3/7)
20
17
13
9
8
15
9
OSD
Note :
The components identified by
mark !or dotted line with mark
!are critical for safety.
Replace only with part number
specified.
Note :
Les composants identifiés par
une marque !sont critiques
pour la sécurité.
Ne les remplacer que par une
pièceportant le numéro spécifié.

SLV-772HF/779HF
4-13 4-14
AUDIO PROCESS
MA-341(4/7)
MA-341 (4/7) (AUDIO PROCESS) SCHEMATIC DIAGRAM
— Ref. No. MA-341 Board; 1,000 Series — For schematic diagram
• Refer to page 4-5 for printed wiring board.
8
11
20 10

SLV-772HF/779HF
4-15
MA-341 (5/7) (TUNER) SCHEMATIC DIAGRAM
— Ref. No. MA-341 Board; 1,000 Series — For schematic diagram
• Refer to page 4-5 for printed wiring board.
TUNER
MA-341(5/7)
4-16
10
11
20
10
Note :
The components identified by
mark !or dotted line with mark
!are critical for safety.
Replace only with part number
specified.
Note :
Les composants identifiés par
une marque !sont critiques
pour la sécurité.
Ne les remplacer que par une
pièceportant le numéro spécifié.

SLV-772HF/779HF
4-17 4-18
MA-341 (6/7) (MODE CONTROL) SCHEMATIC DIAGRAM
— Ref. No. MA-341 Board; 1,000 Series — For schematic diagram
• Refer to page 4-5 for printed wiring board.
MODE CONTROL
MA-341(6/7)
22
6P
2.7k
27k
11
20
23
23
10
MF-316
491
MF-316
461
1.5k
RD5.6ES-T1B3
10
50V

SLV-772HF/779HF
4-19 4-20
MA-341 (7/7) (POWER SUPPLY) SCHEMATIC DIAGRAM
— Ref. No. MA-341 Board; 1,000 Series — For schematic diagram
• Refer to page 4-5 for printed wiring board.
POWER SUPPLY
MA-341(7/7)
6.8M
1000p
0.0022
4.7
50V
120
200V
2SC4054P
100p
0.033
120
620 56
50V
0.0047
50V
AU02A-V0
0.47
1/4W 47
50V
470
10V
2.7
2W 1uH
1uH
0.01
22 1/4W
15
MPG06D-6052PKG3
AGC1A-V0
47
50V
15
13
8
11
9
17
DIA.5
Note :
The components identified by
mark !or dotted line with mark
!are critical for safety.
Replace only with part number
specified.
Note :
Les composants identifiés par
une marque !sont critiques
pour la sécurité.
Ne les remplacer que par une
pièceportant le numéro spécifié.

SLV-772HF/779HF
XX
XX
XX
XX
XX
XX
XX
6P
S463
R474
33 STOP
S467
S468
S469
S471
PLAY
XX
4-224-21
DM-84 (TAPE OPARATION) PRINTEDWIRING BOARD
— Ref. No. DM-84 Board; 2,000 Series —
DM-84 (TAPE OPARATION) SCHEMATIC DIAGRAM
— Ref. No. DM-84 Board; 2,000 Series —
There are few cases that the part printed on this diagram isn’t mounted in this model.
TAPE OPARATION
DM-84
!¶ IC201 2REC
!• IC201 7REC
!ª IC201 @£ PB
@º IC201 @• REC/PB
@¡ IC201 @ª PB
@™ IC201 (•
@£ IC201 #¶ REC
@¢ IC201 ^¶ REC/PB
@∞ IC201 1PB
480mVp-p 2.3Vp-p
1.5Vp-p
1.0Vp-p
460mVp-p
0.4Vp-p
H
0.1µsec/div
0.1V/div
480mVp-p
4.2Vp-p
H
H
H
30Hz
H
@¡ IC201 @ª REC
2.2Vp-p
H
3.579545MHz
RF SW P
REC/PB
MA-341 BOARD (AUDIO BLOCK (IC201))
MA-341
VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER, POWER SUPPLY
MF-316
(POWER, EJECT SWITCH)
DM-84
(TAPE OPARATION)

SLV-772HF/779HF
4-23 4-24E
MF-316 (POWER/EJECT SWITCH) PRINTEDWIRING BOARD
— Ref. No. MF-316 Board; 2,000 Series —
MF-316 (POWER/EJECT SWITCH) SCHEMATIC DIAGRAM
— Ref. No. MF-316 Board; 2,000 Series —
POWER/EJECT SWITCH
MF-316
There are few cases that the part printed on this diagram isn’t mounted in this model.
MA-341
VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER, POWER SUPPLY
MF-316
(POWER, EJECT SWITCH)
DM-84
(TAPE OPARATION)
LED DRIVER
REMOTE
CONTROL
RECEIVER
IC461