Sony SLV-L56AR / SLV-L76HFAR / SLV-L86HFAR Service Manual ▷ View online
3-4
3-2. VIDEO (1) BLOCK DIAGRAM
SLV-L56/L76HF/L86HF
3
2
5
6
13
14
11
10
4
12
30
21
20
19
18
17
28
26
22
PB
PB
PB
PB
REC
REC
11
10
7
6
9
8
13
12
1
2
3
2
3
FOR CHECK
REC CURR
PB RF
RF SWP
PB RF
RF SWP
CN501
05
REC
ADJ
ADJ
DET
VCA
LOGIC
RF ENV
RF SWP
SD1 (SSB)
SCK1 (SSB)
SERVO/SYSTEM
CONTROL
SEE PAGE
3-7
RF SWP
COMP SYNC
SD1 (SSB)
SCK1 (SSB)
C ROT
PB RF
REC RF
COMP SYNC
C ROT
VIDEO(2)
SEE PAGE
3-5
COMP
DET
DET
REC
IDLE
HPF
AMP
ENV
DET
DET
Q501
PB RF
BUFFER
IC501
VIDEO REC/PB AMP
MA-323
BOARD (1/6)
(SEE PAGE 4-9)
VIDEO
HEAD
CN502
SP CH1 F
EP CH1 F
EP CH2 F
EP CH2 S
EP CH1 S
SP CH2 F
SP CH1 S
SP CH2 S
SP
CH1
EP
CH1
EP
CH2
SP
CH2
SP
REC
SP
REC
LP
REC
LP
REC
IC501
@™ PB
800mVp-p(H)
IC501
@• REC
100mVp-p(H)
IC501
!¶ REC/PB
5.2Vp-p(2V)
IC501
@¡ REC/PB
4.6Vp-p(2V)
IC501
!• REC/PB
2.2Vp-p(H)
IC501
4 REC
2.8Vp-p(H)
SLV-L56/L76HF/L86HF
3-5
3-6
3-3. VIDEO (2) BLOCK DIAGRAM
S/H
S/H
CLK
VIDEO(1)
SEE PAGE
3-4
6
4
78
77
75
74
62
71
70
68
66
65
63
6
3
5
8
1
4
7
9
11
13
15
16
17
18
19
24
28
30
26
+
+
+
+
MA-323
BOARD (2/6)
(SEE PAGE 4-11, 17, 23)
IC202
1H CCD DELAY LINE
CCD
CCD
PB RF
REC RF
COMP SYNC
C ROT
Q209
L204
C218
C218
L213
C265
C265
L211
C262
C262
10MHz
TRAP
70kHz
TRAP
1.1MHz
TRAP
COMP SYNC
LP.EP
Q202
Q203
REC
MODE
SWITCH
REC
MODE
SWITCH
Q207
05
VSDATA
VCLK
IC201
SW1
ME.SECAM S-Det
Y/C PROCESS
Q201
EMPH
SWITCH
Q206
EMPH
SWITCH
fo/Dev Adj
S-DET
Main
De-emph
main Emph
Carriar Offset
W.C/DC
FM MOD
FM AGC
P.
EQ
P
R
SW14
629
TRAP
1MHPF
AMP
7MLPF
LAGREAD
LPF
SDL
S
N
SW13 G.
EQ
DET
DLIM
DEMO
Sub LPF
FBC/ALC
P
R
SW15
DOC
Pictur
Cont
Clamp
YNR
DO/REC
DO
SW6
0.4Vpp
0.5Vpp
SW5
R
P
SW11 P
R
SSB
N.C
D.E
D.E
Y.LPF (NTSC/PAL)
P
R
SW10
NL
Emph
NL
De.Emph
DO
Det
Edge
Dely
R
SW21
R
P
SW18
SW19
HPF
HiFi
TRAP
HPF
fh TRAP
ACC
R
P
R
P
NP conv
REC
APC
SW1
Main
Conv1
Main
Conv2
2M LPF
1.3M
LPF
1.3M LPF
Delay 150n
SW20
DELAY
THROUGH
P
R SW12
VCA
LEVEL Det1
LEVEL Det2
2.2M
LPF
SW30/25
B.Em
C.K
Senal Cont
Intertase
NTSC/PAL
N.P CONT OUT
1/2
2fl VCO
4phase Gen
CR Det
2fsc
ME
SECAM
DET
PB/REC
Disori
REC
AFC
REC
APC
PB
APC
Clock
Xtal
VCO/OSC
X201
3.579545MHz
X202
3.582056MHz
Color Killer
ID Det
DOWN
Conv
1/2
phase SW
61
7
3
1
2
4
60
43
64
18
52
53
45
57
56
55
53
50
49
22
Clamp
LPF
ATT
(–10dB)
ATT
(–10dB)
SW7
SSB
1.0Vpp
REC
AGC Det
PBALC
Video AGC
P
R
SW8
0.5Vpp
CLEAR
SYNC
Sync Sep
6dB AMP
6dB AMP
Y.SQUELCH
C.SQUELCH
Q210
SWITCH
PAL-N
LP.EP
PAL-N
LP.EP
PAL-N
C-KILL
Killer
DET OUT
BPF
B.De
emph
N P
Color
Killer
ME.SECAM
REC
C.OUT
SW17
SW16
C-KILL
COMP
SYNC
Q204
Q205
Q104
QVD
PAL-N
NTSC
Feed Back
Clamp
Video ALC
Q400
PICT CONT
PAL-N
L86HF
IC203
VIDEO INPUT SELECT
AV IN SEL1
AV IN SEL2
AV IN SEL2
JS201
L56/L76HF
SERVO/SYSTEM
CONTROL
SEE PAGE
3-7
TUNER
SEE PAGE
3-11
CN423
CN407
L2 VIDEO
TU VIDEO
5
5
LINE 2 VIDEO
MF-312
BOARD (1/3)
(SEE PAGE 4-34)
MOD V
J481
VIDEO
LINE-2
IN
VIDEO
VIDEO
CNJ901
LINE-1
IN
LINE
OUT
Q901
BUFFER
IC161 (1/2)
SYSTEM CONTROL
(ON SCREEN DESPLAY)
CV.OUT
CV.IN
BLUE BACK
PAL-N
4fsc OUT
4fsc IN
Q402
BLUE BACK
SWITCH
X401
17.734475MHz
TRAP
TRAP
NTSC 3.58
PICT CONT
C KILLER DET
QVD
COMP SYNC
VSDATA (SSB)
VCLK (SSB)
LP.EP
COMP SYNC
VSDATA (SSB)
VCLK (SSB)
LP.EP
PICT CONT
QVD
COMP SYNC
VSDATA
VCLK
LP.EP
COMP SYNC
VSDATA
VCLK
LP.EP
SERVO/SYSTEM
CONTROL
SEE PAGE
3-7
MODE CONTROL
SEE PAGE
3-14
AUDIO
SEE PAGE
3-9
VIDEO
BUFFER
Q211
REC
MODE
SWITCH
NTSC
IC201
4 PB
840mVp-p(H)
IC201
7 PB
840mVp-p(H)
IC201
6 REC
400mVp-p(H)
IC201
!∞ REC
370mVp-p(H)
IC201
@§ REC/PB
1.1Vp-p(3.57945MHz)
IC202
8 REC/PB
REC:250mVp-p(H)
PB:300mVp-p(H)
IC202
1 REC/PB
REC:400mVp-p(H)
PB:500mVp-p(H)
IC202
4 REC/PB
560mVp-p(H)
IC202
5 REC/PB
360mVp-p(H)
IC201
&¶ REC/PB
1Vp-p(H)
IC201
&¡ REC/PB
440mVp-p(H)
IC201
#º REC/PB
1.1Vp-p(3.582056MHz)
IC201
%º PB
640mVp-p(H)
IC201
%£ REC/PB
5Vp-p(H)
IC161
%™ REC/PB
2.4Vp-p(17.734475MHz)
IC161
$£,$∞ REC/PB
2Vp-p(H)
IC201
%¶ REC/PB
2.2Vp-p(H)
IC201
^º/ REC
Pulse
Gen
REC:470mVp-p(H)
PB:260mVp-p(H)
SLV-L56/L76HF/L86HF
3-7
3-8
3-4. SERVO/SYSTEM CONTROL BLOCK DIAGRAM
61
98
100
99
6
1
21
67
19
20
56
57
80
7
5
6
23
14
60
59
91
75
79
76
77
81
55
65
3
27
54
17
13
24
62
63
7
5
96
97
95
90
82
9
4
92
37
29
32
31
8
16
89
88
74
11
12
87
86
85
84
83
4
10
2
40
66
93
94
25
73
72
70
69
39
38
58
26
34
36
M
M
MA-323
BOARD (3/6)
(SEE PAGE 4-17, 19)
TUNER
SEE PAGE
3-11
AUDIO
SEE PAGE
3-9, 10
VIDEO(2)
SEE PAGE
3-6
VIDEO(1)
SEE PAGE
3-4
MODE CONTROL
SEE PAGE
3-14
POWER
SEE PAGE
3-16
TV/VIDEO
PLL CLK
PLL DATA
PLL ENB
AFT
F MONO
MAIN/SAP
TA MUTE
SAP DET OUT
STEREO DET OUT
L76HF/L86HF
CLK
DAT
WR
IC163
EEP ROM
L76HF/L86HF
L86HF
DATA (IIC)
CLOCK (IIC)
AF SWP
AF ENV
AF REC P
AF REC
FULL ERASE
REC P
A-MUTE
AV IN SEL1
AV IN SEL2
LP. EP
PICT CONT
VSDATA (SSB)
VCLK (SSB)
QVD
COMP SYNC
NTSC 3.58
RF ENV
RF SWP
SCK1(SSB)
SD1(SSB)
KEY1
KEY2
S-IN
S-OUT
S-CLK
FLD CS
REMOCON
DMS DOWN
DMS UP
S101
(REC PROOF)
Q103
PWM
CONV.
DC
L86HF
P CONT
05
IC161
(2/2)
SERVO/SYSTEM CONTROL
MODE CONTROL
TV/VIDEO
PLL CLOCK
PLL DATA
TU ENABLE
TU AFT
F MONO
MAIN SAP
TA MUTE
SAP BILL OUT
STEREO OUT
IIC DATA
IIC CLOCK
WRITE CONT
AF SWP
AU RF
AF REC P
AF REC
FULL ERASE
REC P
A MUTE
DRUM VS
DRUM QR
DRUM FG
DRUM PG
(IN) 32kHz
(IN) 10MHz
(OUT) 10MHz
CAP TRQ PWM
CAP FG
CAM
T SENS
S SENS
END LED
T REEL
S REEL
RESET
POWER FAIL
CTL (+)
CTL (–)
H. AMP SW
CTL AMP1
CTL AMP3
CTL AMP OUT
MODE1
MODE2
MODE3
MODE4
CAP VS
CAP QR
CAP RVS
(OUT) 32kHz
IN SEL1
IN SEL2
EP. LP
REC PRF
APC PWM
AFC ERROR
QVD
C SYNC
3.58
P CONT
VIDEO RF
RF SWP
SSB CLK
SSB DATA
FUNC KEY1
FUNC KEY2
S-IN0
S-OUT0
S-CLOCK0
FLD CS
REMOCON
DMS DOWN
DMS UP
L76HF/L86HF
HEAD AMP
SWITCH
Q105
CTL
HEAD
CTL (X)
CTL (Y)
1
3
CN161
IC162
S REEL
FG
T REEL
FG
PH101
POWER FAIL DET,
RESET PULSE
GENERATOR
PH100
LED
DRIVER
Q102
Q100
S SENS
Q101
T SENS
D102
D+6V
S100
ROTARY
SWITCH
MECHA
POSITION
CAM (+)
CAM (–)
CAM (+)
CAM (–)
M903
CAM MOTOR
CN103
IN 2
IC130
CAM MOTOR
DRIVER
CAP FG
SW +5V
CN102
CAP VS
CAP RVS
CTR REF
LIMITTER
X161
10MHz
X162
32.768kHz
1
2
•
3
5
3
2
4
6
4
6
5
3
2
4
6
4
6
DPG
DFG
DVS
DRUM
MOTOR
CN101
2
4
3
2
4
3
M
DRUM MOTOR
(M901)
(M901)
CAPSTAN MOTOR
(M902)
(M902)
DRUM MOTOR
DRIVER
FG
PICK UP
PG
PICK UP
FG
PICK UP
CAPSTAN
MOTOR
DRIVER
DRIVER
CAPSTAN
MOTOR
6
8
OUT 2
OUT 1
IC161
^ª REC/PB
IC161
#ª REC/PB
IC161
#• REC/PB
2.2 Vp-p (32.768 kHz)
4.7 Vp-p (2 V)
4.2 Vp-p (360 Hz)
IC161
&™ REC/PB
3.2 Vp-p (10 MHz)
IC161
@¢ REC/PB
4.9 Vp-p (2 V)
IC161
$º REC/PB
4 Vp-p (1 kHz)
IC161
#¡ REC
5 Vp-p (2 V)
IC161
#™ REC
5 Vp-p (2 V)
SLV-L56/L76HF/L86HF
3-9
3-10
3-5. AUDIO BLOCK DIAGRAM
9
3
16
20
24
18
17
1
4
5
5
3
2
6
7
1
39
41
42
16
15
12
34
38
52
43
42
46
45
40
37
36
3
4
5
6
1
2 44
20
21
1
2
4
1
3
1
2
3
1
1
3
1
1
+
+
AUDIO
REC/PB
HEAD
AUDIO
ERASE
ERASE
HEAD
FULL
ERASE
HEAD
CN301
Q301, 302
HEAD
SWITCH
MA-323
BOARD (4/6)
(SEE PAGE 4-9,11, 19, 23)
Q305, T321
SW+12V
BIAS
ERASE
OSC
BIAS
ERASE
OSC
L56
JS302
CN302
L76HF/L86HF
L76HF/L86HF
Q311
Q300
Q309
Q310
T302, Q330
IC340
AUDIO REC/PB AMP
DRAUM
HEAD
Hi-Fi AUDIO
CN502
CH1
CH2
HEAD
AMP
HEAD
AMP
REC
CURRENT
AMP
VCC
AGC
DET
L86HF
J481
CN407
LINE-2
IN
L
R
AUDIO
MF-312
BOARD (2/3)
(SEE PAGE 4-34)
LINE2 AUDIO L
LINE2 AUDIO R
LINE2 AUDIO R
CN423
CNJ901
LINE-1 IN
L
R
AUDIO
05
IC901
AMP
L76HF/L86HF
L56
JS301
NORMAL
SELECT
L56
L76HF/L86HF
TUNER M
AL1
MOD AUDIO
TUMER R
RUNER L
TUMER R
RUNER L
TUNER
SEE PAGE
3-11
LINE
OUT
AUDIO
L76HF/L86HF
R
L
CNJ901
SEE PAGE
3-7
SERVO/SYSTEM
CONTROL
L76HF/L86HF
CLOCK (IIC)
DATA (IIC)
A MUTE
DATA (IIC)
A MUTE
IC201
NORMAL
AUDIO PROCESS
BAND
GAP
R
VCA
P
ATT
IC360
Hi-Fi AUDIO
PROCESS
Q303, 311, 312
HEAD CONTROL
SWITCH
Q307, 308
SW+12V
SERVO/SYSTEM
CONTROL
SEE PAGE
3-7
VIDEO(2)
SEE PAGE
3-6
BUFFER
AGC
AMP
MUTE REC
REC
REC P
AF REC
AF REC P
AF SWP
AF ENV
FULL ERASE
L76HF/L86HF
L76HF/L86HF
S&H
S&H
S&H
BPF
1.3/1.4
BPF
1.7/1.8
HF LIMITER
HF LIMITER
HF
LPF
HF
LPF
DOC
PLL
1.3MHz
1.4MHz
1.4MHz
CCO
PLL
1.7MHz
1.8MHz
1.8MHz
CCO
AUDIO
CLIPPER
SP/LP
SWITCH
AUDIO
CLIPPER
INPUT
SWITCH
VOL L
VOL R
OUT
PUT
PUT
SELECT
NOISE
REDUCATION
AUDIO
LPF
NOISE
REDUCATION
AUDIO
LPF
I C DATA
DECODER
2
L56
JS364
+
+
–
–
SW+12V
39
40
36
SWITCH
+
PAL/NTSC
SWITCH
LP.EP
PAL-N
+
L76HF/L86HF
JS304
C317
L56
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