Read Sony HST-SE581 / SEN-R4820 / SEN-T481 Service Manual online
HST-SE581
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— 12 —
5-2. BLOCK DIAGRAM
68
OFF
LV DATA
B-PB (L)
TU L
DO
CL
CE
MUTE
STEREO
DI
TUNED
TUNER UNIT
DOLBY NR
IC501
B NR
41
39
34
35
32
33
REC
LEVEL
RV511
NORM
25
NR ON/OFF
18
CROM
24
A120/70
13
15
NORM/
CROM/
METAL
CROM/
METAL
BIAS ON/OFF
16
LM ON/OFF
20
PB A/B
12
NORM/HIGH
14
R/P
P
ASS
19
EQ OUT
PB OUT
REC IN
37
B
120
A
70
ON
S771
NR
+5V
: TUNER/AUDIO
: CD
• Signal Path
• RCH is omitted
: REC (DECK B)
: PB (DECK A)
: PB (DECK B)
: VIDEO-2 AUDIO
: VIDEO-1 AUDIO
VIDEO 1
AUDIO IN
VIDEO 2
AUDIO IN
VIDEO 1
AUDIO OUT
IC301
PHONO
CD
J101-1
J101-2
J102-1
J102-2
J101-3
2
10
LEVEL SHIFT
CONTROL
1
3
5
7
6
14
13
15
FV DA
T
A
FV CLK
F CE
11
8
4
FUNCTION
IC302
LT IN
61
DATA
53
DATA
51
CLK
54
CLK
50
ENABLE1
52
ENABLE2
49
46
47
LV CLK
LV CE2
LV CE1
X301
8MHz
24
L OUT
31
C OUT
33
S OUT
SURROUND
PROCESSOR
IC300
IC303
MUTE
Q332
10dB
MUTE
Q330
IC303
MUTE
Q432
IC601
FV DATA
FV CLK
LV CE1
SURROUND
VOL CONT
IC401
CE
18
DI
17
CL
16
RF IN
12
LVR IN
33
23
L OUT
13
RF OUT
MUTE
Q131
MUTE
Q331
LINE
MUTE
Q449
LIMITER
Q154
14
5
15
6
1
2
3
VEE
VCC
IN
MUTE
+VE
NF
-VE
13 VCC
POWER AMP
IC151
VCC
VEE
LIMITER
Q153
BOOSTER
Q151
BOOSTER
Q152
CURR DET
Q155
PROTECTOR
Q191,192,291
Q191,192,291
MUTE
Q921
RELAY
DRIVE
DRIVE
Q261
Q261
RY251
J781
PHONS
TM151
R CH
TM351
R CH
FRONT
SPEAKER
J701
L
R
CENTER
SPEAKER
REAR
SPEAKER
L
R
SUPER
WOOFER
RELAY
DRIVE
DRIVE
Q161
RY151
RELAY
DRIVE
DRIVE
Q351
RY351
RELAY
DRIVE
DRIVE
Q661
RY651
LIMITER
Q654
2
7
1
6
5
VEE
IN
+VE
NF
-VE
9 VCC
WOOFER
IC651
+24V
-24V
LIMITER
Q653
BOOSTER
Q651
BOOSTER
Q652
CURR DET
Q670
IC451
IC351
MUTE
Q431
IC602
IC601
BOOST
37Hz
L.P.F
IC602
H.P.F
PHASE
DET
Q603
MECHANISM BLOCK
MOTOR DRIVE
IC502
TRG(+)
2
TRG)-)
10
5
A TRG
6
B TRG
4
VZ
H/L
SWITCH
Q533,534
H/L
SWITCH
Q531
ON/OFF
SWITCH
Q532
A-PB (L)
B-REC (L)
BIAS
II A-
II B-
TRG (+)
TRG(-)
CAP.M (H/L)
CAP.M (-)
+12V
REG
REG
Q951,952
UNREG +12V
CAP.M (+)
A HALF
(A-STOP) A PLAY
A SHUT
B HALF
(B-STOP) B PLAY
B SHUT
TC RELAY
TC A TRG
52
TC B TRG
51
TC TRG H/L
59
TC CAP.M H/L
57
TC CAP.M ON/OFF
58
TCRELAY REC/PB
56
TC A HALF
55
TC A SHUT
27
TC A PLAY
54
TC B HALF
26
TC B SHUT
28
TC B PLAY
53
2
ST
MUTE
3
ST
STEREO
4
ST
TUNED
6
ST
DI
7
ST
DO
8
ST
CLK
5
STCE
62
TC BIAS ON/OFF
MUTE
STEREO
TUNED
DO
DI
CL
CE
50
TC LM ON/OFF
60
TC A/B
61
TC NORMAL/HIGH
37
TC REC/PB P
ASS
19
FUNC CE
18
FUNC DA
T
A
17
FUNC CLK
42
LV
D
ATA
41
L
V
CLK
43
L
V
SUR CE
44
L
V
VOL
CE
69
10dB MUTE
FV DA
T
A
FV CLK
LV
D
ATA
L
V
CLK
L
V
CE1
L
V
CE2
49
LINE MUTE
36
IC MUTE
68
PHASE
64
PROTECTION
24
H.P
R
Y
23
FRONT
R
Y
22
SUR R
Y
66
S/W R
Y
45
H.P
SENCE
67
PWR MECH SW
LED
DRIVE
Q702
POWER
SWITCH
Q701
21
P
RELA
Y
47
S/W M ON/OFF
OFF
ON
S701
POWER
+15V
LED
DRIVE
Q709
D801
STANBY
RELAY
DRIVE
DRIVE
Q901
RY901
LED
DRIVE
Q703
48
PLOG LED
D803
D805
RESET
SWITCH
Q704
RESET
IC703
1
3
10
RESET
39
POWER SENCE
D802
D804
D702
+5V
D+5.6V
SUPER
WOOFER
DOLBY
PLO LOGIC
S702-704
32
KEY 1
S705-713
S721-736
31
KEY 3
S741-751
30
KEY 3
29
KEY 4
GR11
GR12
Q718,719
GR6
GR7
Q716,717
GR1
GR2
Q714,715
GR8
GR9
Q720,721
SEG4
Q713
PAUSE
REC
HIGH
NORMAL
REC
D756
D756
D756
SEG3
Q712
SEG2
Q711
D755
D754
D753
D752
D751
D751
D821 D822
D811
POPS
D813
CLASSIC
D812
D814
MOVIE
GAME
D815
SEG1
Q710
GR11
+5V
S761-770
S772
DECK B
DECK A
S752-756
-26V
REG
REG
+7.5V
REG
F2
F1
2
1
F902
AC
IN
T901
+10V
REG
F903
F955
F956
F951
F954
F952
F953
T901
F901
EXCEPT
E MODEL
E MODEL
EXCEPT
E MODEL
E MODEL
EXCEPT
E MODEL
E MODEL
D901-904
RECT
AC
OUTLET
J901
+5.6V
REG
Q902
RECT
D951
RECT
D961
RECT
D957-960
Q954
-7.5V
REG
2
3
IC951
Q956,957
IC952
RELAY
DRIVE
DRIVE
Q451
RY451
+15V
+5.6V
+5.6V
-26V(VFDP)
UNREG +15V
VCC
VEE
+24V
-24V
+10V
+7.5V
-7.5V
SYSTEM CONTROL
IC701
X2
11
FLUORESCENT LAMP
FLUORESCENT INDICATOR TUBE
FL701
GR1,2,6-9,11,12
SEG1-4
F1
F2
SEG1-18
GR1-12
VOL
ENCODER
RV701
VOL
A
15
VOL
B
9
REMOTE
CONTROL
RECEIVER
RECEIVER
SIRCS
38
X1
12
+5V
X701
5 MHz
IC702
16
MUTE
Q602
36
ROCK
S901
120V
240V
E MODEL
E MODEL
E MODEL
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