Sony HST-SE581 Service Manual page 9

HST-SE581
5-16. IC BLOCK DIAGRAMS
IC300 LV1041M (MAIN BOARD)
80 79 78 77 76 75 74
R BPF2 1
RECT
LOGIC
BPF
R BPF1 2
RECT
FF
LOGIC
VCA VCA
S DC OUT 3
VCA VCA
4
C DC OUT
R DC OUT 5
L DC OUT
6
V REF 7
S
V REF
MODE
VCC 8
C OUT 9 STRIM
C
S OUT 10
S
P
P
R
R OUT 11 R
B
B
P
P
L
L OUT 12 L
12 B
B
GND
13
P
B
P
L IN
14
L
B
P
P
P
R IN 15
S
R B
B
B
S IN 16
S
P
S
DELAY OUT 17
P
B
C VOL IN 18
S
DET 19
IREF 20 20
R OUT R
21
L
22
R NF
NF
SW
L NF 23
C
MASTER
L OUT
24 VOL
28 29
25 26 27 30
73 72 71 70 69 68 67
RECT
LOGIC
RECT
FF
LOGIC
VCA VCA
P
VOL
B
VCA VCA
P
VOL
B
CH
CONTROL
BPF
CONTROL
C MODE
NOISE
FILTER
NOISE
GEN
STRIM
B NR
P
B
DC
VOL/
CUT OUT
MUTE
FILTER
C
D
P
IN
FILTER
B
SRAM
PCM
CONTROL
B P B
R L
PCM
S MASTER VOL
31
32 33 34 35 36 37 38
— 39 —
IC502 LB1641 (MAIN BOARD)
T.S.D
MOTOR
DRIVE
66 65
64
L BPF2
BPF
63 L BPF1
2 3
1
IC602 UPC1330HA (AUDIO BOARD)
62
RT IN
R
L 61
LT IN
60 DC CUT 1 2 3
SW R1 GND SW P1
59 C MODE
58
GND
57 NS BPF1
IC151 UPC2581V (POWER BOARD)
56 NS BPF2
OSC
OSC 55
IEV
PROTECTOR
REG DRIVE
54 CLK
1 2 3 4
DATA
53 DATA
DECODER
52
ENABLE
IC401 LC75373ED (MAIN BOARD)
51 DATA
50
CLK
33 32
49
ENABLE2
48 VSS
+
47 OSC
–
46
OSC
LSELO 34
L4 35
VDD
VDD 45
L3 36
L2 37 +
L1 38 –
44 A/D
VDD 39
43 NS
–
R1 40
42 D/A +
R2 41
R3 42
DC CUT
41
R4 43
RSELO 44
39 40
–
+
2
1
IC302 LC7822 (MAIN BOARD)
1
O.C.P
IN 2
MOTOR
DRIVE
3
OUT 4
5
IN
6
FWD/REV/STOP
CONTROL LOGIC
7
OUT 8
5 6 7 8 9 10
4
9
IN
10
OUT 11
12
VEE
CE 13
DI
14
INVERTER CL 15
COMPARATER
4 5 6 7 8 9
CONT GND VCC SW P2 GND SW R2
BIAS CIRCUIT
-VEOUT
PRE PRE
DRIVE
DRIVE DRIVE
+VEOUT
5 6 7 8 9 10 11 12 13 14 15
31 30 29 28 27 26 25 24 23
+
–
–
+
–
+
–
+
SHIFT
DECODER LATCH CONTROL
REGISTER
+
–
+
–
+
–
–
+
3 4 5 6 7 8 9 10 11
— 40 —
30
29 IN
28
27 OUT
26
25 IN
24
23 OUT
22
IN IN
21
20 OUT
LEVEL SHIFT
19 VDD
LATCH 18 RESET
17 S
SHIFT RESISTOR
16 VSS
IC651 STK350-230 (POWER BOARD)
TR3 R1
TR1
INPUT 1
TR2
TR4
R2
NF 2
3
4
5
R6
TR7
6
TR6
R4
TR5
V 7
SS
R3
D4 D3
GND 8
D1 D2 R5 R8 R7
V 9
CC
R9 TR8
22 LFIN
+
21 LFOUT
–
+
20 LROUT
–
19 VREF
18 CE
17 DI
16 CL
15 VSS
–
14 RROUT
+
–
13 RFOUT
+
12 RFIN