Sony TA-WR1 Service Manual ▷ View online
5
5
TA-WR1
TA-WR1
• Waveforms
– RX Board –
– RX Board –
Note on Schematic Diagrams:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
Note: When mesurering voltages and waveforms, connect
with STR-KSL900W (states: tuner).
no mark: TUNER
Note: When mesurering voltages and waveforms, connect
with STR-KSL900W (states: tuner).
no mark: TUNER
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
• Note for Printed Wiring Boards and Schematic Diagrams
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
C
B
These are omitted.
E
Q
Note: The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
1
IC7402
rd
(OSCO)
2
IC7405
wd
(X1)
1 V/DIV, 50 ns/DIV
1 V/DIV, 50 ns/DIV
81 ns
2.9Vp-p
80.5 ns
3.3 Vp-p
MEMO
6
6
TA-WR1
TA-WR1
2-1. BLOCK DIAGRAM
• SIGNAL PATH
: AUDIO
TM101
(+)
(–)
IC7407
D/A CONVERTER
2 DATA
3 LRCK
1 BCK
3 LRCK
1 BCK
15 ML
13 MD
16 SCK
14 MC
7
VOL
DC VOLTAGE
DETECT
Q105 – 107
FAN MOTOR
DRIVE
Q110
RELAY
DRIVE
Q104
IC102
POWER AMP
8
VOR
SURROUND
L
SURROUND
R
(+)
(–)
IC7405
REAR AMP CONTROLLER
SPEAKERS
IMPEDANCE
USE 6
Ω
IC7409
ELECTRICAL VOLUME
1 VIN1
DATA
8
4
VIN2
CLOCK
2
VOUT1
7
VOUT2
26
DAC_DATA
25
DAC_CLK
27
DAC_LAT
23
22
X7402
12.5MHz
X1
X0
36 LED_RED
38 LED_ON
D201
ON/STANDBY
S951
F901
POWER
IC7402
DIAT RECEIVER
60
DAOUT
10 ADVIN
59
LRCK
54
BCK
31
APX
SRDT
33
CSOD
61
DTVALID
J7401
DIR-R1
X7401
12.288MHz
40
43
OSCI
OSCO
34
53 DIAT_SRDT
16 CSOD
14 DTVALID
LPF
IF +5V
35
SWDT
XRST
37
SCLK
36
XSCEN
52 DIAT_SWDT
13
28 XRST
51 DIAT_CK
54 XSCEN
IC7411
LEVEL
SHIFT
IC7410
LEVEL
SHIFT
LED DRIVE
Q101
MUTING
Q7406
MUTING
Q7405
D102
RY101
-1
-2
MUTING CONTROL
Q7403, 7411
LED DRIVE
Q102
37 LED_DIAT
D202
ON LINE
LED DRIVE
Q103
D114
+
LEVEL
DETECT
Q108, 109
+
IC101
POWER AMP
IC7408
L.P.F
34
VOLIC_DATA
33
VOLIC_CLK
41
MUTE
31
SPRY
42
FAN1
43
FAN2
15
PROTECT
45
FANON
5
(AC IN)
POWER TRANSFORMER
(SUB)
T902
POWER TRANSFORMER
(MAIN)
T901
+2.5V
D110
D906, 907
D111
POWER AMP
B+
POWER AMP
B–
+5V
REGULATOR
IC104
B+ SWITCH
Q7409, 7410
RECT
D104
D104
RECT
D902 – 905
PROTECT
Q114
+6V
REGULATOR
IC103
RECT
D106 – 109
+3.3V
REGULATOR
IC7406
+2.5V
REGULATOR
IC7401
+1.5V
D/A B+
E.VOL B+
IF +5V
+5V
+3.3V
+6V
+1.5V
REGULATOR
IC7404
RESET
IC7403
B+ SWITCH
Q7401, 7402
MAIN POWER
ON/OFF
RELAY DRIVE
Q902
35
PWR_RY
39
DIAT_OFF
STOP
B+ SWITCH
Q7407, 7408
B+ SWITCH
Q112
FAN MOTOR
SPEED
Q111, 117
REGULATOR
Q113
FAN
47
PSAVE
19
32
RST
44
FAN_CLK
RY901
AC DETECT
Q901
GRN
RED
GRN
RED
7
7
TA-WR1
TA-WR1
2-2. PRINTED WIRING BOARD — RX BOARD —
•
See page 4 for Circuit Boards Location.
:Uses unleaded solder.
Q7408
C7415
R7438
R7439
R7440
R7441
R7443
C7445
C7446
C7448
C7447
R7437
R7435
R7501
R7466
IC7403
R7465
R7497
R7478
Q7409
R7477
R7474
R7486
L7404
R7429
R7487
IC7404
IC7401
R7499
R7476
R7498
R7500
R7485
R7470
R7469
C7468
R7456
R7493
L7407
R7451
R7450
R7449
R7448
R7447
R7444
R7433
R7431
R7430
R7484
R7428
R7427
Q7402
R7442
R7422
R7436
R7417
R7409
R7489
Q7407
Q7406
R7403
R7401
C7457
C7439
C7437
C7436
C7420 C7425
X7401
R7426
R7425
IC7407
R7472
R7473
IC7405
IC7409
Q7411
IC7410
R7475
R7405
R7404
C7418
C7405
C7406
C7407
C7409
R7483
R7494
L7406
IC7408
R7482
Q7405
R7491
R7492
R7503
R7459
IC7402
C7470
C7469
L7401
C7444
CN7403
CN7402
C7456
C7454
C7453
C7452
C7451
C7449
C7442
C7441
C7440
C7438
C7435
C7429
C7419
C7417
C7414
C7411
C7403
C7402
X7402
J7401
C7428
C7450
Q7401
C7401
R7488
C7421
C7462
R7414
IC7406
R7463
R7462
R7410
R7415
C7455
C7426
C7432
C7463
R7454
R7453
R7452
D7404
R7432
R7446
D7402
R7423
IC7411
D7401
R7418
R7420
C7443
R7412
D7403
R7434
C7465
C7412
R7421
C7466
R7407
C7424
C7422
C7431
C7467
C7433
C7458
R7502
C7459
C7460
C7461
C7434
Q7403
C7423
R7495
Q7410
R7419
C7404
R7402
R7424
C7408
C7413
L7402
R7460
C7464
R7445
R7480
R7408
R7455
R7457
R7406
C7416
C7410
C7427
R7490
R7496
C7430
R7458
R7479
FB7401
4
4
1
1
1
3
5
4
4
5
3
1
16
48
33
32
17
49
64
5
8
7
1
1
1
E
3
6
4
8
16
9
E
E
E
E
E
E
8
14
8
5
(COMPONENT SIDE)
RX BOARD
1-864-776-
11
(11)
1
7
14
8
E
E
E
1-864-776-
11
(CHASSIS)
(11)
(CONDUCTOR SIDE)
RX BOARD
DIR-R1
1
1
2
17
16
3
2
A
MAIN BOARD
CN101
(Page 10)
1
7
(FOR CHECK)
1
2
3
4
5
6
7
8
A
B
C
D
E
F
G
H
I
J
K
• Semiconductor
Location
Ref. No.
Location
D7401
H-4
D7402
J-4
D7403
K-7
D7404
I-3
IC7401
C-1
IC7402
B-3
IC7403
E-4
IC7404
D-3
IC7405
D-5
IC7406
K-6
IC7407
B-4
IC7408
B-7
IC7409
C-7
IC7410
B-6
IC7411
G-6
Q7401
H-5
Q7402
B-4
Q7403
J-2
Q7405
E-7
Q7406
E-7
Q7407
E-7
Q7408
E-7
Q7409
E-2
Q7410
K-7
Q7411
D-7
8
8
TA-WR1
TA-WR1
2-3. SCHEMATIC DIAGRAM — RX BOARD (1/2) —
•
See page 13 for IC Block Diagrams.
•
See page 5 for Waveforms.
R7408
Q7403
Q7411
R
7
40
5
R
7
4
0
4
C
7
4
1
8
C7415
C7420
C7417
L7404
10
µH
C
7
42
2
J
L
7
40
2
J
L
7
4
0
1
C7452
C7451
L7407
C7441
C7463
C7440
C7439
C7436
C7438
C7437
C7435
R7485
R7486
R7483
R7429
R7482
C
7
4
6
1
C
74
6
0
C
7
4
5
9
C7433
C7434
X7401
R7477
R7478
Q7410
IC7406
µPC2933T-E2
Q7409
C7427
C7428
IC7401
C7455
R7472
R7473
Q7408
C7413
C7414
R7401
C7406
R7489
C7419
C7416
C7424
C7401
C7402
R7480
L7402
L7401
47
µH
10
µH
C7405
C7403
R
7
4
0
2
C
7
4
0
4
C
7
4
0
9
R7491
R7492
C7425
R7403
R
7
4
9
0
C7407
C7408
C7410
C7421
C7411
C7412
R7487
C7467
R7488
C7431
C7462
Q7407
C7453
Q7406
Q7405
C7450
R7430
R7423
Q7401
Q7402
IC7409
IC7402
IC7407
J7401
C7456
C7449
IC7404
R7428
R
7
4
2
6
R
7
4
2
5
R
7
4
2
7
C7469
C7470
C7444
FB7401
C7443
D
7
4
0
3
C7442
R7439
R7438
R7502
C7454
C7446
C7445
R7442
R7440
C7447
R7497
R7499
IC7408(2/2)
IC7408(1/2)
R7443
R7441
C7448
R7498
R7500
R7469
R7463
R7466
R7465
R7462
R7470
10k
DTA124EKA-T146
DTA124EKA-T146
3
.3
k
8
2
0
0
.1
0.01
0.1
47
10V
0
.1
P
L
V
A
R
P
L
R
E
F
10
50V
0.47
50V
47
10V
0.1
47
10V
0.1
0.1
47
10V
0.1
47
10V
100
100
100
100
100
1
0
0
p
1
0
0
p
1
0
0
p
15p
15p
12.288MHz
2.2k
10k
RT1N141C-TP-1
2SA1162G-TE85L
0.1
47
10V
TK11225CMCL-G
0.1
2.2k
10k
RT1N141C-TP-1
0.1
47
10V
10k
0.01
220
47
10V
0.1
0.1
0.1
47
10V
2.2
0.1
47
10V
2
2
0
0
.0
1
0
.0
1
4.7k
2.2k
0.1
68
4
.7
k
1
0.1
0.1
0.1
47
10V
0.1
100
100p
10k
0.1
0.1
2SA1162G-TE85L
10
50V
2SD1938(F)-T(TX).SO
2SD1938(F)-T(TX).SO
0.47
50V
2.2k
10k
2SA1162G-TE85L
RT1N141C-TP-1
M62429FP-TP
CXD4017R
PCM1751DBQR
1P
100
10V
10V
47
10V
S-T111B15
MC-0GATFG
MC-0GATFG
220
2
2
0
2
2
0
2
2
0
1
1
0.1
0.1
U
D
Z
S
T
E
-1
7
6
.8
B
100
10V
10V
1.8k
1.8k
10
470
6.3V
0..0022
0.0022
1.8k
4.7k
0.0022
15k
10k
TLV2362IDR
TLV2362IDR
1.8k
4.7k
0.0022
15k
10k
10k
1k
10k
10k
1k
10k
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
A
10
A
1
1
A1
2
A
1
3
A
9
ML
MC
MD
SCK
SCK
BCK
BCK
DATA
DATA
LRCK
LRCK
XRST2
LID2
SCLK2
XSCEN2
SWDT2
SRDT2
CSOD2
V
IN
1
V
O
U
T1
G
N
D
D
A
TA
CL
O
C
K
V
C
C
VO
U
T
2
V
IN
2
NC
CE
VOUT
IN
OUT
GND
CNT
CNP
GND
(1/2)
TEST5
TEST6
TEST7
SYMCLK
ICLK
VDDE
VSS
VDDI
DTVALID
EMPFS0
EMPFS1
XTST
BCK/RCLK
CSOD
SRDT
SWDT
XSCEN
SCLK
SCMODE
VSS
OSCI
VDDE
VSS
OSCO
TEST0
TEST1
TEST2
TEST3
TEST4
PLREF
PLVAR
TESTMD
APVCI
APCPO
APAVD
APAVS
VSS
VDDI
VDDE
VCOR
CHNUM
DIVCODE
APX
EXTCK
VSS
MST
XSM
SMCK
VDDE
VSS
ADVRH
ADAVS
ADAVD
ADVRL
ADVIN
VDDE
VSS
XRST
DIFM0
DIFM1
DTSEL
(CHASSIS)
Q7407,7408
B+ SWITCH
L.P.F
MUTING
Q7405,7406
ELECTRICAL
VOLUME
MUTING CONTROL
DIAT RECEIVER
B+ SWITCH
Q7401,7402
D/A CONVERTER
O
G
I
+3.3V REGULATOR
+1.5V REGULATOR
+2.5V REGULATOR
DIR-R1
1
8
3
2
5
6
7
4
TXOUT
DAOUT
LRCK
VSS
VIN
B+ SWITCH
Q7409,7410
Q7403,7411
(Page 9)
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