Sony SLV-L56AR User manual

MICROFILM
SERVICE MANUAL
Argentina Model
VIDEO CASSETTE RECORDER
SLV-L56AR/L76HFAR/L86HFAR
RMT-V247E/V247F
SPECIFICATIONS
G
S MECHANISM
– Continued on next page –
* The abbreviations of L56, L76HF and L86HF contained in this service manual
are indicated when these models are common to all their corresponding mod-
els as given below.
L56AR
L56
Abbreviated
model name
All model
names
SLV- L76HFAR
L76HF
L86HFAR
L86HF
• Refer to the SERVICE MANUAL of VHS MECHANICAL
ADJUSTMENTS VI for MECHANICAL ADJUSTMENTS.
(9-921-647-11)
Photo: SLV-L86HFAR

4-8
• Waveforms
1IC501 4REC 5IC501 !• REC/PB
6IC501 !¶ REC/PB
2IC501 @• REC
3IC501 @™ PB
4IC501 @¡ REC/PB
2.8 Vp-p (H)
100 mVp-p (H)
800 mVp-p (H)
4.6 Vp-p (2 V)
2.2 Vp-p (H)
5.2 Vp-p (2 V)

SLV-L56/L76HF/L86HF
4-9 4-10 HEAD AMP
MA-323 (1/10)
MA-323 (HEAD AMP) SCHEMATIC DIAGRAM • See page 4-5 for printed wiring board.
– Ref. No.: MA-323 board; 1,000 series –

SLV-L56/L76HF/L86HF
4-11 4-12
MA-323 (VIDEO, AUDIO) SCHEMATIC DIAGRAM • See page 4-5 for printed wiring board.
– Ref. No.: MA-323 board; 1,000 series –
VIDEO, AUDIO
MA-323 (2/10)
Note:The components identified by mark !or dotted line
with mark !are critical for safety.
Replace only with part number specified.

4-13 4-14
• Waveforms
!∞ IC201 @§ REC/PB
REC: 470 mVp-p (H)
PB : 260 mVp-p (H)
1.1 Vp-p (3.579545 MHz)
1IC201 4PB 6IC202 1REC/PB !¡ IC201 ^º REC
!™ IC201 %¶ REC/PB
!£ IC201 %£ REC/PB
!¢ IC201 %º PB
7IC202 5REC/PB
8IC202 4REC/PB
9IC201 &¶ REC/PB
!º IC201 &¡ REC/PB
2IC201 6REC
3IC201 7PB
4IC201 !∞ REC
5IC202 8REC/PB
840 mVp-p (H) 1 Vp-p (H)
2.2 Vp-p (H)
5 Vp-p (H)
640 m Vp-p (H)
400 mVp-p (H)
360 mVp-p (H)
560 mVp-p (H)
840 mVp-p (H)
370 mVp-p (H)
440 mVp-p (H)
REC:
250 mVp-p (H)
PB : 300 mVp-p (H)
REC:
400 mVp-p (H)
PB : 500 mVp-p (H)
!§ IC201 #º REC/PB
1.1 Vp-p (3.582056 MHz)

4-16
• Waveforms
1IC161 @¢ REC/PB 6IC161 $º REC/PB
7IC161 $£,$∞ REC/PB
8IC161 %™ REC/PB
9IC161 ^ª REC/PB
!º IC161 &™ REC/PB
2IC161 #¡ REC
3IC161 #™ REC
4IC161 #• REC/PB
5IC161 #ª REC/PB
4.9 Vp-p (2 V)
5 Vp-p (2 V)
5 Vp-p (2 V)
4.2 Vp-p (360 Hz)
4.7 Vp-p (2 V)
4 Vp-p (1 kHz)
2 Vp-p (H)
2.4 Vp-p (17.734475 MHz)
2.2 Vp-p (32.768 kHz)
3.2 Vp-p (10 MHz)

SLV-L56/L76HF/L86HF
4-17 4-18
MA-323 (SYSTEM CONTROL) SCHEMATIC DIAGRAM • See page 4-5 for printed wiring board.
– Ref. No.: MA-323 board; 1,000 series –
SYSTEM CONTOROL
MA-323 (3/10)

SLV-L56/L76HF/L86HF
4-19 4-20
SERVO CONTROL
MA-323 (4/10)
MA-323 (SERVO CONTROL) SCHEMATIC DIAGRAM • See page 4-5 for printed wiring board.
– Ref. No.: MA-323 board; 1,000 series –
Note:The components identified by mark !or dotted line
with mark !are critical for safety.
Replace only with part number specified.

SLV-L56/L76HF/L86HF
4-21 4-22
MA-323 (Hi-Fi AUDIO) SCHEMATIC DIAGRAM • See page 4-5 for printed wiring board.
– Ref. No.: MA-323 board; 1,000 series –
Hi-Fi AUDIO
MA-323 (5/10)

SLV-L56/L76HF/L86HF
4-23 4-24
MA-323 (IO) SCHEMATIC DIAGRAM • See page 4-5 for printed wiring board.
– Ref. No.: MA-323 board; 1,000 series –
IO
MA-323 (6/10)

SLV-L56/L76HF/L86HF
MA-323 (TUNER) SCHEMATIC DIAGRAM • See page 4-5 for printed wiring board.
– Ref. No.: MA-323 board; 1,000 series –
4-25 4-26 TUNER
MA-323 (7/10)

SLV-L56/L76HF/L86HF
4-27 4-28
MA-323 (MODE CONTROL) SCHEMATIC DIAGRAM • See page 4-5 for printed wiring board.
– Ref. No.: MA-323 board; 1,000 series –
MODE CONTROL
MA-323 (8/10)

SLV-L56/L76HF/L86HF
4-29 4-30
MA-323 (FL DRIVER) SCHEMATIC DIAGRAM • See page 4-5 for printed wiring board.
– Ref. No.: MA-323 board; 1,000 series –
FL DRIVER
MA-323 (9/10)

SLV-L56/L76HF/L86HF
4-31 4-32
MA-323 (POWER SUPPLY) SCHEMATIC DIAGRAM • See page 4-5 for printed wiring board.
– Ref. No.: MA-323 board; 1,000 series –
POWER SUPPLY
MA-323 (10/10)
Note:The components identified by mark !or dotted line
with mark !are critical for safety.
Replace only with part number specified.

SLV-L56/L76HF/L86HF
4-33 4-34
DM-76 (MODE CONTROL), MF-312 (MODE CONTROL, FRONT IN) PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
– Ref. No.: DM-76 board, MF-312 board; 2,000 series –
There are few cases that the part isn't mounted in this model is printed on this diagram.
MF-312 BOARD
CN407 B-2
CN408 C-2
D405 C-1
D480 A-1
D481 B-1
D490 B-2
D491 A-2
IC401 B-1
MODE CONTROL
DM-76, MF-312
MA-323
(
VIDEO, AUDIO, I/O,
SERVO/SYSTEM CONTROL,TUNER
)
DM-76
(MODE CONTROL)
POWER BLOCK (HS-921SF1) (L56)
POWER BLOCK (SR-708) (L76HF/L86HF)
(POWER SUPPLY)
MF-312
(
MODE CONTROL,
)
FRONT IN

SLV-L56/L76HF/L86HF
4-37 4-38
HS-921SF1 (POWER SUPPLY) SCHEMATIC DIAGRAM
– Ref. No.: HS-921SF1 board; 3,000 series –
– SLV-L56 –
POWER SUPPLY
HS-921SF1
Note:The components identified by mark !or dotted line
with mark !are critical for safety.
Replace only with part number specified.
IC101
MIP164
R102
47K
2W
C109
0.047µF
630V
C110
68pF
2KV
D102
EG01
C111
0.1µF
R105
10K
D104
1SS270A
T101
!
D501
10ELS4
D
SC
+
IC101
SWITCH
D106
MTZJ12A
R103
6.8
C112
100µF
35V
+
C108
150µF
450V
R104
10K
C113
0.1µF
!
!
!
!!
!
!!
!
!
C103
330pF
250V
C106
330pF
250V
C104
330pF
250V
D101
S1NB60
AC IN
CN101 F101
250V
2A
C101
0.1µF
250V
Z101
C102
0.1µF
250V
R101
470K
1/2W
L101
18mH
0.5A
L102
18mH
0.5A
!
!
!
!
!
!
1
2
05
+
PC101
TLP721F R202
1K
R201
150
C207
1µF
50V
IC201
AN1431T
IC201
SHUNT REG
+
+
+
+
++
R203
1.8K
RV201
200
R205
1.2K
C501
220µF
25V
C202
220µF
25V
C203
0.01µF
C201
330µF
35V
D201
21DQ04
D301
S2LA20
C301
330µF
35V
C401
47µF
50V
C302
220µF
25V
D302
RD15FB2
C303
0.01µF
D401
10ELS4
L301
22µH
L201
22µH
1
2
3
4
5
6
7
8
9
35V
13V
13V
GND
GND
AU GND
6V
6V
–13V
CN201 9P
MA-323 BOARD
CN600
(SEE PAGE 4-31)
L104
L103
!
!
!
!
HS-921SF1 BOARD
NO MARK : E-E MODE
312
5.7
4.2
2.5
+6V
B+
B+
B+
B+
B+
B+
B–
12345678910
11
A
B
C
D
E
F
G
B–
!

SLV-L56/L76HF/L86HF
4-41 4-42 E
SR-708 (POWER SUPPLY) SCHEMATIC DIAGRAM
– Ref. No.: SR-708 board; 4,000 series –
– SLV-L76HF/L86HF –
POWER SUPPLY
SR-708
Note:The components identified by mark !or dotted line
with mark !are critical for safety.
Replace only with part number specified.
C108
1000pF
250V
C107
1000pF
250V
C104
1000pF
250V
C103
1000pF
250V
D101D102
D104D103
AC IN
CN101 F101
250V
T2AL
C101
0.1µF
250V
R101
1M
1/2W
Z101 C102
0.1µF
250V
L101 L102
!
1
2
05
D101~104
1N4005
R108
47K
1W
R103
6.8
C110
0.01µF
400V
C116
47pF
1KV
D105
EG01C
C112
0.1µF
C113
0.01µF
C114
0.1µF
C109
180µF
450V
T101
!
D205
AU02Z
+
+
IC101
SWITCH
D108
PR1003
D107
PR1003
C111
47µF
35V
C115
0.1µF
!
!
!
!
!
!
!
!
!
!
!
!
!
PC101
PC123
R202
470
+
+
+
C206
470µF
16V
C209
1000pF
1KV
C204
1000µF
10V
C205
220µF
16V
C207
4.7µF
50V
C208
0.1µF
L203
10µH
D202
RL4Z
!
!
D203
RK46
!
D204
RD30FB
R207
10
C202
1000µF
16V
R201
10
1/2W
C203
220µF
16V
C201
47µF
63V
D201
EG01C
L202
10µH
1
2
3
4
5
6
7
8
9
35V
13V
13V
GND
GND
AU GND
6V
6V
–13V
CN201 9P
MA-323 BOARD
CN600
(SEE PAGE 4-31)
FB2
12345
R105
3.3K
R104
10K
R106
120K
R102
47K
3W
FB1
R107
6.8
+
R209
10K
1W
+
R210
3.3K
R203
18K
VR201
5K
R205
10K
R204
15K
+
+
R206
3.3K
R211
10K
IC201
AN1431T
IC201
SHUNT REG
!
R208
0.47
IC101
MIP184
312
0.4
5.8
NO MARK : E-E MODE
+6V
12345678910
11
A
B
C
D
E
F
G
SR-708 BOARD
B+
B+
B+
B–
B+
B+
B+
B–
!