Sony STR-V200 Service Manual ▷ View online
– 35 –
IC701, 702 uPC2581
PROTECTOR
DRIVE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
PRE
DRIVE
PRE
DRIVE
BIAS CIRCUIT
REG
DRIVE
MUTE
+VOUT1
–VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
–VOUT2
+VOUT2
VCC1
VCC2
VEE
6-13. IC BLOCK DIAGRAMS
• Main section
IC300 LV1016
1
5
6
+
–
+
20
19
18
17
16
15
14
13
21
22
23
24
2
3
4
7
8
9
10
12
11
+
DEC
IN-FILTER
(40kHz)
VDD
ADM-CONT
SRAM
ADM
OUT-FILTER
(7k/5k)
B-NR
DC-OUT
VOL/MUTE
S-TRIM
INV-PHASE
R+DELAY
L+DELAY
A
B
A
B
A
B
A
B
A
B
A
B
A
B
L–R
L+R
(–6dB)
A
B
A.GND
L-OUT
R-OUT
VREF
S-OUT
DELAY-OUT
S-IN
R-IN
L-IN
VCC
NR-DET
ENABLE
DATA
CLK
D.GND
DC-CUT
VDD
OSC
OSC
NR-IREF
DC-CUT
IC401 LC7822
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
CONTROL
LATCH
SHIFT RESISTOR
LEVEL SHIFT
CL
DI
CE
VEE
OUT
IN
OUT
IN
OUT
IN
VSS
S
RESET
VDD
OUT
IN
IN
OUT
IN
OUT
IN
1
2
3
4
5
6
7
8
V+
VSB/SESIN
VSA
RESET
GND
OUTC
VSC
CR
VREF
+
–
–
+
–
+
–
+
Q
R
S
IC950 NJM2103D
– 36 –
1
2
3
4
5
6
7
8
9
15
10
11
12
+
13
14
16
21
18
19
25
17
24
22
23
20
34
32
33
29
30
35
28
31
27
26
36
40
39
38
37
41
42
NOISE
FILTER
NOISE
CH
BALANCE
CONTROL
VR
CONTROL
LPF
V REF
VR
VR
NOISE
GENERATOR
VCA
VCA
VCA
VCA
VCA
VCA
VCA
VCA
LPF
LPF
RECT
RECT
RECT
RECT
P. S.
P. S.
CMODE
MUTE
DIVIDER
OSC
CONTROL
CTRIM
LOG
DIFF
DIFF
LOG
DIFF
DIFF
DUAL T
CONTROL
L-IN
R-IN
V
SS
CLK
DATA
V
CC
L-OUT
R-OUT
S-OUT
C-OUT
ENABLE
OSC1
CMODE-CAP.
C-TRIM DC CUT
R-BPF1
R-BPF2
R-BPF3
DC CUT
DC CUT
L-R RECT
L+R RECT
VCS-TH
VCS-1
VCS-2
BPF1
BPF2
VREF
S-CH DC OUT
C-CH DC OUT
L-CH DC OUT
R-CH DC OUT
VREF
L-BPF1
L-BPF2
L-BPF3
DC CUT
DC CUT
R RECT
L RECT
VLR-TH
VLR-1
VLR-2
+
IC301 LA2786
• Display section
IC202 BA6208
1
2
3
4
5
6
7
8
9
NC
OUTPUT 2
Vcc
GND
NC
INPUT 2
INPUT 1
NC
MOTOR
DRIVE
MOTOR
DRIVE
REG
SWITCH
SWITCH
OUTPUT1
– 37 –
SECTION 4
EXPLODED VIEWS
4-1. CASE SECTION
NOTE:
• Items marked “*” are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
should be anticipated when ordering these items.
• The mechanical parts with no reference number in
the exploded views are not supplied.
• Hardware (# mark) list and accessories and packing
materials are given in the last of this parts list.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
The components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
* 11
1-670-378-11 POWER SW BOARD
* 12
A-4414-896-A VOL-TONE BOARD
13
1-782-074-11 WIRE (FLAT TYPE) (7 CORE)
14
1-782-075-11 WIRE (FLAT TYPE) (9 CORE)
* 15
4-921-941-01 CUSHION (FL)
* 16
4-210-383-01 HOLDER (FL TUBE)
17
3-704-366-31 SCREW (CASE) (M3X6)
* 18
4-210-365-01 CASE
FL201
1-517-662-11 INDICATOR TUBE, FLUORESCENT
1
A-4411-215-A KNOB ASSY
2
4-210-373-01 KNOB (EQ)
3
4-951-620-01 SCREW (2.6X8), +BVTP
* 4
4-978-398-21 CUSHION
5
4-977-593-01 RING (DIA. 50), ORNAMENTAL
6
A-4411-214-A PANEL ASSY, FRONT
7
4-996-698-41 EMBLEM, SONY
* 8
A-4414-899-A KEY BOARD
9
1-782-100-11 WIRE (FLAT TYPE) (23 CORE)
* 10
A-4414-898-A DISPLAY BOARD, COMPLETE
1
2
4
5
6
7
8
10
11
12
3
3
3
3
14
13
17
17
17
18
15
15
16
9
Supplied
with RV404
with RV404
FL201
#2
– 38 –
4-2. CHASSIS SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
62
3-703-244-00 BUSHING (2104), CORD
* 63
4-210-367-01 PANEL, BACK
Q603
8-749-010-25 IC MN2488-OPY-M
Q604
8-749-010-26 IC MP1620-OPY-M
Q653
8-749-010-25 IC MN2488-OPY-M
Q654
8-749-010-26 IC MP1620-OPY-M
Q703
8-749-010-25 IC MN2488-OPY-M
Q704
8-749-010-26 IC MP1620-OPY-M
Q753
8-749-010-25 IC MN2488-OPY-M
Q754
8-749-010-26 IC MP1620-OPY-M
!
T901
1-431-258-11 TRANSFORMER, POWER
51
X-4946-543-1 FOOT (SMALL) ASSY
* 52
1-670-374-11 SPEAKER SW BOARD
* 53
1-670-376-11 PRIMARY BOARD
* 54
1-670-375-11 SECONDARY BOARD
* 55
1-670-373-11 STANDBY BOARD
!
56
1-690-609-21 CORD, POWER
57
4-900-386-01 SCREW
58
4-210-380-01 RIVET, NYLON
59
3-905-609-01 SCREW (TRANSISTOR)
* 60
4-978-398-21 CUSHION
* 61
A-4414-900-A MAIN BOARD, COMPLETE
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
line with mark ! are critical for safety.
Replace only with part number specified.
53
57
54
57
55
56
56
58
61
63
56
62
59
60
51
52
#1
not supplied
not
supplied
supplied
#2
#2
#2
Q703
Q704
Q653
Q654
Q753
Q754
Q603
Q604
#2
#2
#2
#2
#2 #2
#2
#2
not supplied
not
supplied
supplied
not supplied
T901
#2
Click on the first or last page to see other STR-V200 service manuals if exist.