Sony SLV-L56AR / SLV-L76HFAR / SLV-L86HFAR Service Manual ▷ View online
SLV-L56/L76HF/L86HF
3-11
3-12
3-6. TUNER BLOCK DIAGRAM
MA-323
BOARD (5/6)
(SEE PAGE 4-25)
SEE PAGE
3-7
SERVO/SYSTEM
CONTROL
PROCESSOR
US MPX
(US MPX SEP)
RV750
TU701
VHF/UHF
CH SW
TV/VTR
PLL CLK
PLL DA
TA
PLL ENA
MOD V
VIDEO
MOD A
MPX OUT
AFT
9
8
5
7
10
11
3
4
3
5
10
11
12
6
22
2
18
20
IN
OUT
RF UNIT
S701
3CH
4CH
IC750
TV/VIDEO
R758
L76HF/L86HF
L56
PLL CLOCK
PLL DATA
PLL ENABLE
AFT
L76HF/L86HF
12
MAIN/SAP
TA MUTE
F MONO
SAP DET OUT
STREO DET OUT
AL1
L56
05
JS719
L76HF/L86HF
TUNER M
TUNER L
MOD AUDIO
TUNER R
2
MOD V
TU VIDEO
SEE PAGE
3-6
VIDEO(2)
SEE PAGE
3-10
AUDIO
JS716
JS752
JS754
Q754
R759
R760
MPX IN
MS1
MS0
MUTE
F MONO
SAP IND
ST IND
L OUT
R OUT
L+R OUT
SLV-L56/L76HF/L86HF
3-13
3-14
3-7. MODE CONTROL BLOCK DIAGRAM
5
4
2
1
3
2
4
5
6
7
5
6
8
9
2
40
1
15
26
•
28
31
S1
S16
32
37
9
4
G6
G1
1
3
2
5
3
4
S449
S450
S448
S443
S444
PLAY
FF
FF
PAUSE
STOP
S441
S445
S442
S447
REC
REW
REW
EJECT
L86HF
L86HF
L56/L76HF
L56/L76HF
DM-76
BOARD
(SEE PAGE 4-34)
DMS 1
DMS 2
A/D2 IN
A/D1 IN
A/D1 OUT
A/D2 OUT
DMS 1
DMS 2
A/D2 IN
A/D1 IN
A/D1 OUT
A/D2 OUT
CN452
5
6
4
3
2
1
CN424
S119
S112
S113
S115
SP/LP
(SP/EP)
NTSC PB
ON PAL-N
TV
NTSC
3.58
CHANNEL/
TRACKING
TRACKING
ONE TOUCH
TUNING
CHANNEL/
TRACKING
TRACKING
MA-323
BOARD (6/6)
(SEE PAGE 4-27, 29)
S116
S117
S118
EASY
TIMER
COLOR
SYSTEM
05
CN105
POWER LED
SIRCS
POWER SW
IC420
FL DRIVER
POWER LED
C KILLER DET
27
12
D OUT
D IN
CLK
CS
ND420
FLUORESCENT
INDICATOR TUBE
L86HF
DMS UP
DMS DOWN
KEY 2
KEY 1
S IN
S OUT
S-CLK
FLD CS
SERVO/SYSTEM
CONTROL
SEE PAGE
3-7
VIDEO(2)
SEE PAGE
3-6
C KILLER DET
SERVO/SYSTEM
CONTROL
SEE PAGE
3-7
REMOCON
D405
POWER
CN408
D+5V
IC401
REMOTE COMMANDER
RECEIVER
S403
MF-312
BOARD (3/3)
(SEE PAGE 4-34)
DMS 1
DMS 2
STOP
PLAY
L86HF
PLAY
STOP
C L I C K S H U T T L E
CN451
–
+
OUT
/
SLV-L56/L76HF/L86HF
3-15
3-16 E
3-8. POWER BLOCK DIAGRAM
1
•
2
1
9
2
•
3
7
•
8
AC IN
CN101
D101
AC RECT
HS-921SF1
BOARD
(SEE PAGE 4-37)
L101, 102
LFT
IC101
SWITCH
T101
PRT
PC101
PHOTO
COUPLER
CN201
D401
D301
D201
D501
1
9
2
•
3
7
•
8
CN600
1
•
2
1
9
2
•
3
7
•
8
AC IN
L76HF/L86HF
05
CN101
D101-104
AC RECT
SR-708
BOARD
(SEE PAGE 4-41)
L101, 102
LFT
IC101
SWITCH
T101
PRT
PC101
PHOTO
COUPLER
CN201
D201
D202
D203
D205
+35V
+13V
–13V
+6V
TU701
Q701
+5V REG
Q602, 603
SW+5V REG
IC600
SW+12V REG
L76HF/L86HF
SW+12V
IC901
AMP
US MPX
PROCESSOR
IC750
IC360
Hi-Fi AUDIO
PROCESSOR
IC602
UNSW+5V
R+5V REG
D163
D164
D165
POWER FAIL DET,
RESET PULSE
GENERATOR
EEP ROM
SERVO/SYSTEM CONTROL,
MODE CONTROL,
OSD
IC162
IC163
IC161
Q600,601
MTR+12V REG
D130
CAM MOTOR
DRIVER
IC130
P CONT
SERVO/SYSTEM
CONTROL
SEE PAGE
3-7
MA-323
BOARD
(SEE PAGE 4-9~4-32)
D604
D+5V
MTR+12V
IC420
FL
DRIVER
CN101
CN102
MTR+12V
MTR+12V
D+5V
1
1
7
M902
M901
CAPSTAN
MOTOR
DRUM
MOTOR
CN105
4
2
UNSW+5V
CN408
IC401
REMOTE COMMANDER
RECEIVER
MF-312
BOARD
(SEE PAGE 4-34)
IC202
IC203
IC201
Y/C PROCESS,
NORMAL AUDIO
PROCESS
VIDEO INPUT
SELECT
1H CCD
DELAY LINE
L86HF
IC501
IC340
SW+5V
L76HF/L86HF
VIDEO
REC/PB AMP
AUDIO REC/PB
AMP
IC601
D+6V REG
L56
L76HF/L86HF
4-1
SECTION 4
PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
SLV-L56/L76HF/L86HF
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.)
For printed wiring boards:
•
•
X
: indicates a lead wire mounted on the component
side.
•
x
: indicates a lead wire mounted on the printed side.
•
b
: Pattern from the side which enables seeing.
For schematic Diagram:
•
•
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,
because it is damaged by the heat.
New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum capacitor,
because it is damaged by the heat.
•
All resistors are in ohms,
1
/
4
W (Chip resistors :
1
/
10
W)
unless otherwise specified.
k
k
Ω
: 1000
Ω
, MW : 1000k
Ω
.
•
All capacitors are in µF unless otherwise noted.
pF :
µµF
50V or less are not indicated except for electrolytics and
tantalums.
tantalums.
•
All variable and adjustable resistors have characteristic curve
B, unless otherwise noted.
B, unless otherwise noted.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
¢
: internal component.
•
C
: adjustment for repair.
•
U
: B+ Line.
•
V
: B– Line.
•
Circled numbers refer to waveforms.
•
Voltages are dc between measurement point.
•
Readings are taken with a color-bar signal input.
•
Readings are taken with a digital multimeter (DC 10MW).
•
Voltage variations may be noted due to normal production
tolerances.
tolerances.
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
When indicating parts by reference
number, please include the board
name.
number, please include the board
name.
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