Sony HT-CT550W / STR-CT550WT Service Manual ▷ View online
STR-CT550WT
STR-CT550WT
13
13
5-3. BLOCK DIAGRAM - AMP Section -
TB3001
SPEAKERS
ONLY FOR
SS-CT550W
(R)
(L)
POWER AMP
IC3100
31
6
DATA
NS_INIT
SOFT_MUTE
SOFT_MUTE
4
OUTL1 11
9
OUTR1
48
XFSOIN
NSP_MUTE
DC DETECT
Q3551
STREAM PROCESSOR
IC3010
36 XFSIIN
BCK
29 LRCK
21 SCDT
22 SCSHIFT
23 SCLATCH
22 SCSHIFT
23 SCLATCH
LAT1
SC_SHIFT
27 INIT
19 SOFTMUTE
18 NSPMUTE
19 SOFTMUTE
18 NSPMUTE
OVF_1
24 OVF_L
1
X3051
49.152MHz
CLOCK BUFFER
IC3007
SC_DT
SC_DT
DAMP_SCDT/DIR_DI
71
LA
T1
DAMP_LA
TCH1
2
SC_SHIFT
DAMP_SHIFT/DIR_CLK
NS_INIT
69
70
82
DAMP_INIT
SOFT_MUTE
DAMP_SOFT_MUTE
NSP_MUTE
DAMP_NSP_MUTE
85
OVF_1
OVERFLOW1
81
76
DC_DET
20
DRIVE_OCP
(DIAG)
DRIVE_RST
(EN)
90 91
S-AIR_RF
S-AIR_DET
30
67
S-AIR GPIO2
S-AIR_I2C_SDA
89 29
S-AIR_I2C_SDL
S-AIR_RST
7, 17
PROTECT
DETECT
Q3552, 3554
–
/RESET_AB,
/RESET_CD
5
/SD
OVER LOAD DETECT
Q3101
OVER LOAD DETECT
Q3151
25 OVF_R
D3510
32V
DIAG
OUTR2
OUTL2
L.P.F.
L.P.F.
L.P.F.
L.P.F.
D
F
AMP_LRCK
AMP_BCK
AMP_D1FLFR
AMP_MCK
G
DIR_DI
DIR_CLK
30
OUT_D 28
31
OUT_C
6 PWM_A
8 PWM_B
18 PWM_D
16 PWM_C
OUT_A 39
36
OUT_B
3 SIRCS_IN
74 KEY_INT
KEY0
KEY0 - KEY2
REMOTE
CONTROL
RECEIVER
IC803
SYSTEM CONTROLLER
IC1002 (2/3)
S801 - 804
97, 95, 94
FLUORESCENT
INDICATOR TUBE
ND801
T801
DC/DC
CONVERTER
TRNASFORMER
RECT
D802, 803
OSC
Q803
77
79
78
78
7
8
9
8
9
30
FL_DATA
FL_CLK
FL_CS
STB
DIN
CLK
CLK
VEE
FLUORESCENT
INDICATOR
TUBE DRIVER
IC802
SEG1 - SEG16,
SEG17,
GR11 - GR1
D-D4V
14 - 29, 31 - 42
–
+
+
E
28
30
29
30
29
23
22
21
22
21
18
SDIO_Z
LRCK_Z
BCK_Z
LRCK_Z
BCK_Z
SDIO_Z
LRCK_Z
BCK_Z
LRCK_Z
BCK_Z
RESET
I2CCLK
I2CSDA
I2CCLK
I2CSDA
INT
DETECT
RESERVED
RESERVED
2
1
1
CN1006
EZW-RT50/
EZW-RT20
WIRELESS
TRANSCEIVER
(EZW-RT50)
SIGNAL PATH
: AUDIO
(Page 12)
(Page 12)
(Page 12)
(Page 14)
STR-CT550WT
STR-CT550WT
14
14
5-4. BLOCK DIAGRAM - POWER SUPLLY Section -
SHUNT
REGULATOR
IC950
(AC IN)
F900
TH900
D911
RECT
D900
LINE FILTER
LF900
( AEP, UK)
LF901
(US, CND, TW)
POWER CONTROL
IC910
T901
SUB POWER
TRANSFORMER
DRAIN
8
DRAIN
7
ISOLATOR
PC901
ISOLATOR
PC902
VCC
2
FB
4
1
POWER CONTROL
IC920
D
T902
MAIN POWER
TRANSFORMER
D924
D928
D925, 926
OVER LOAD
PROTECT
Q921, 922
Q921, 922
4 VCC
7 OCP/BD
5 OLP/SS
TH920
RECT
D940
D902
6 FB
REGULATOR
Q923
D950
POWER ON/OFF
CONTROL
Q960
ISOLATOR
PC903
POWER VOLTAGE
CONTROL
Q961, 962
+4V
REGULATOR
IC402
+12V
REGULATOR
IC401
32V
D12V
+6V
REGULATOR
IC403
+5V
REGULATOR
IC1008
E +6V
DSP +1.1V
+3.3V
REGULATOR
IC404
D3.3V, SW3.3V, TUNER_3.3V
+3.3V
REGULATOR
IC50
+3.3V
+1.8V
SW4V
D901
D929 D930 D931
SHUNT
REGULATOR
IC940
REGULATOR
Q920
B+ SWITCH
Q901
B+ SWITCH
Q401, 402
Abbreviation
: Canadian model
CND
: Taiwan model
TW
DC/DC
CONVERTER
IC5103
M901
(FAN)
M
FAN MOTOR
DRIVE
Q3000, 3002
A_VCC, A5V
B+ SWITCH
Q1002, 1004
RESET
SYSTEM CONTROLLER
IC1002 (3/3)
RESET
SWITCH
Q1003
E3.3V
RESET SIGNAL
GENERATOR
IC1006
E4V
D1006
D1002
D3514, 3515
12
AC_CUT 73
P_CONT4 60
P_CONT1 66
P_CONT2 65
IC3501 +1.8V
+1.8V
REGULATOR
IC3523
IC3500 +5V
+5V
REGULATOR
IC3509
IC3500 +1.2V
+1.2V
REGULATOR
IC3528
+1.8V
REGULATOR
IC3050
HDMI +3.3V
+3.3V
REGULATOR
IC3526
IC802 +3.3V
D-D4V
+3.3V
REGULATOR
IC801
P_CONT3 61
P_CONT_MAIN 87
DIAG
E
84
P_CONT_HDMI
(Page 13)
Ver. 1.1
STR-CT550WT
STR-CT550WT
15
15
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF 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
specifi ed.
• f : Internal component.
•
2 : Nonfl ammable resistor.
•
5 : Fusible resistor.
•
C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
•
A : B+ Line.
•
B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
• Voltages are taken with VOM (Input impedance 10 M
• Voltages are taken with VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
AUDIO
f :
TUNER
E : VIDEO
• Abbreviation
CND : Canadian model
TW :
CND : Canadian model
TW :
Taiwan
model
For Printed Wiring Boards.
Note:
•
•
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.)
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
Note:
The components identi-
fi
The components identi-
fi
ed by mark
0 or dotted
line with mark
0 are criti-
cal for safety.
Replace only with part
number specifi ed.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque
Les composants identifi és
par une marque
0 sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Abbreviation
CND : Canadian model
TW :
CND : Canadian model
TW :
Taiwan
model
Note: When the MAIN board or IC3100 on the MAIN board
are replaced, spread the compound referring to “NOTE
OF REPLACING THE IC3100 ON THE MAIN
BOARD AND THE COMPLETE MAIN BOARD” on
servicing notes (page 3).
OF REPLACING THE IC3100 ON THE MAIN
BOARD AND THE COMPLETE MAIN BOARD” on
servicing notes (page 3).
Note: When the MAIN board or IC3100 on the MAIN board
are replaced, spread the compound referring to “NOTE
OF REPLACING THE IC3100 ON THE MAIN
BOARD AND THE COMPLETE MAIN BOARD” on
servicing notes (page 3).
OF REPLACING THE IC3100 ON THE MAIN
BOARD AND THE COMPLETE MAIN BOARD” on
servicing notes (page 3).
• Indication of transistor.
C
B
These are omitted.
E
Q
C E
B
These are omitted.
• Waveforms
– HDMI Board –
– MAIN Board –
1
IC3500 4 (XTALOUT)
1 V/DIV, 20 ns/DIV
37.2 ns
3.2 Vp-p
2
IC3000 qa (XOUT)
1 V/DIV, 50 ns/DIV
100 ns
3.5 Vp-p
qd
IC1011 qk (LRCK)
1 V/DIV, 10
Ps/DIV
20.8
Ps
3.4 Vp-p
qf
IC1011 ql (BCK)
1 V/DIV, 200 ns/DIV
324 ns
3.4 Vp-p
qh
IC1011 r; (XTO)
1 V/DIV, 20 ns/DIV
40.6 ns
1.8 Vp-p
qj
IC3010 rk (XFSOIN)
500 mV/DIV, 10 ns/DIV
20.3 ns
1.2 Vp-p
qg
IC1011 w; (SCKO)
1 V/DIV, 20 ns/DIV
41 ns
2.7 Vp-p
qa
IC5001 wg (XTAL2)
1 V/DIV, 20 ns/DIV
40 ns
2.8 Vp-p
qs
IC1002 qd (Xout)
1 V/DIV, 100 ns/DIV
166 ns
2.9 Vp-p
qk
IC301 ql (X2)
200 mV/DIV, 20
Ps/DIV
30.5
Ps
0.4 Vp-p
• HDMI board is multi-layer printed board. However, the
patterns of intermediate layers have not been included in
diagrams.
diagrams.
Ver. 1.1
STR-CT550WT
STR-CT550WT
16
16
5-5. PRINTED WIRING BOARD - HDMI Board -
1
2
21
20
1
5
R3042
R3043
R3622
R3623
R3624
R3626
R3627
R3628
R3628
C3654
L3511
C3655
L3512
L3513
L3514
C3658
C3659
C3660
ET3500
ET3503
R3646
C3676
R3650
R3651
C3679
R3658
R3659
R3660 R3661
C3689
R3662
R3663
R3664
R3666
C3690
R3676
R3684
R3685
R3695
R3697
X3000
CN3500
CN3501
CN3502
CN3503
JL3534
FB3000
CN3510
CN3512
C3703
C3706
C3715
JL3559
JL3560
JL3561
C3721
JL3562
C3722
JL3563
IC3500
IC3501
C3726
C3727
IC3507
IC3509
IC3510
C3543
R3710
C3544
R3711
R3712
R3713
IC3523
R3722
IC3527
IC3528
C3559
R3727
C3562
C3570
C3572
C3573
R3749
C3580
R3750
C3585
C3588
R3754
R3755
R3567
C3593
R3578
R3579
R3583
R3587
R3588
R3592
R3593
R3598
R3599
RB3500
RB3501
RB3502
RB3503
RB3505
RB3506
RB3507
RB3508
RB3509
CN3000
RB3510
C3003
C3004
C3600
X3501
C3602
C3605
C3606
R3003
IC3000
R3009
R3010
R3011
R3012
R3018
R3021
R3601
R3027
R3028
FB3511
FB3513
1
5
R3032
R3037
R3038
L3503
L3504
L3505
L3506
L3507
L3508
L3509
R3625
R3629
C3651
L3510
R3630
R3631
R3634
R3638
R3639
C3662
C3663
C3664
C3665
C3666
C3667
R3640
C3668
R3641
C3673
R3665
C3696
C3697
R3678
R3679
R3680
R3681
R3694
JL3523
JL3524
JL3525
JL3527
JL3528
JL3529
JL3530
JL3533
JL3536
JL3537
JL3538
JL3539
C3700
JL3540
C3701
JL3541
C3702
JL3542
JL3543
C3510
JL3544
C3704
JL3545
JL3546
JL3547
JL3548
C3708
JL3549
C3709
JL3550
C3710
JL3551
C3711
JL3552
C3712
JL3553
C3713
JL3554
C3714
C3521
JL3555
C3522
JL3556
JL3557
C3717
JL3558
C3718
C3719
C3529
C3720
C3530
R3510
D3514
R3511
D3515
R3708
R3517
R3518
C3735
R3520
R3521
R3523
R3524
IC3526
C3557
R3530
C3558
R3725
R3728 R3729
C3560
C3563
R3730
C3564 C3565
C3566
C3567
C3568
C3569
R3737
R3738
C3571
R3740
C3578
C3579
R3746
R3747
R3748
C3581
C3582
C3592
R3590
CL3050
CL3051
CL3052
CL3053
C3000
CL3054
C3001
CL3055
CL3056
C3005
C3006
D3000
D3001
R3001
R3002
R3004
R3005
R3006
R3008
R3013
R3014
R3015
R3017
R3019
FB3504
FB3505
FB3508
FB3509
R3022
R3026
R3029
FB3512
25
26
50
51
75
76
1
4
5
8
1
1
7
4
5
8
1-883-666-
11
(11)
HDMI BOARD
(SIDE A)
E
MAIN BOARD
CN1005
D
MAIN BOARD
CN1004
HDMI
GAME IN
HDMI
BD/DVD IN
HDMI
SAT/CATV
IN
HDMI
TV OUT
ARC
(NC)
(CHASSIS)
(CHASSIS)
1-883-666-
11
(11)
HDMI BOARD
(SIDE B)
1
5
1
3
3
4
5
1
3
4
5
5
1
25
26
50
51
75
76
100
1
19
1
19
1
19
1
19
1
36
37
72
73
108
109
144
1
100
A
B
C
D
1
2
3
4
5
6
7
8
9
10
1
10
20
11
Note: IC3500 and IC3501 cannot exchange with single. When these
parts are damaged, exchange the entire mounted board.
•
: Uses unleaded solder.
(Page 26)
(Page 27)
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