Sony STR-DG900 Service Manual ▷ View online
STR-DG900
17
17
STR-DG900
4-5. BLOCK DIAGRAM — XM SECTION —
18 COMRXP
23 COMTXP
J101
XM DIGITAL
TRANSCEIVER
IC102
BUFFER
IC103
X101
45.158MHz
XM
+D
–D
2
3
22 COMTXM
3
SCTXOUT
5
SCRXIN
7
COMMSEL
9
IRQ
XM64FS
XMDATA
XMFS
XM256FS
3
12
11
2
6
7
5
4
1
39
I2SSCLK
8
17
2
37
I2SDATA
3
41
I2SLRCLK
16
43
I2SOCLK
11
RESET
26 OSCOUT
28 OSCIN
9
18
13
MD
14
MC
XM DACMDI
XM DACMC
BCK
DATA
LRCK
SCK
15
ML
7
VOUTL
XML
XMR
AC1
AC2
19 COMRXT
6
7
8
VOUTR
XM+3.3V
XM+5V
XM+5.3V
2
1
4
2
1
3
1
3
1
112 XM_DOUT
79 XM_COMMAND
SYSTEM CONTROL
IC1101 (5/7)
111 XM_REQ
50 XM_DACMS/PAGE0
80 XM_RESET
51 XM_DBPOWER/PAGE1
51 XM_DBPOWER/PAGE1
113 XM_DIN
RESET
Q101,104
D/A CONVERTER
IC105
XM AMP
IC104
IC106
F40
RECT
D104
D104
IC107
XM+5V
REG
IC101
XM+3.3V
REG
XM5.3V REG
TUNER/AUDIO
SECTION
D
DIGITAL
SECTION
F
(Page 14)
(Page 13)
STR-DG900
18
18
STR-DG900
4-6. BLOCK DIAGRAM — KEY/DISPLAY SECTION —
(Page 16)
57
FL DISPLAY DRIVER
IC100
41
I
45
58
99
100
5
6
6
17
16
63
SW NETWORK
S100-107
RV103
MASTER
VOLUME
VOLUME
D101
MULTI CHANNEL
DECODING
62
52
54
109
110
55
+3.3V
(STBY)
X1
X0
EEPROM SDA
EEPROM SCL
EEPROM SCL
PW_ON/OFF
137 ADCC_DIN
HDMI TX/SOT1
HDMI RX/SIN1
MD2
MD0
RSTX
SDA
SCL
EEPROM
IC1131
AUTO
CAL MIC
J2000
D2014
X1101
16.5MHz
X101
8MHz
HUART_RX
HUART_TX
SIRCS
3
FL_LAT
LATCH
CLK
RESET
19 P51
8
FL_CLK
17 P17
7
FL_CLR
4
FL_DIN
8 RESET
DATA
15 RESET
2 XIN
3 XOUT
37
P47
P97
I
P60
PD4
I
PD0
VOL_JOG_2A
VOL_JOG_2B
VOL_JOG_2B
AD2
SW NETWORK
S110-116
AD1
1
3
13
12
15
14
RV104
INPUT
SELECTOR
TUNING_+/-_JOG_3A
TUNING_+/-_JOG_3B
TUNING_+/-_JOG_3B
1
3
RV105
TUNING
+/-
FUNCTION_JOG_1A
FUNCTION_JOG_1B
FUNCTION_JOG_1B
1
3
1
REMOTE
CONTROL
RECEIVER
IC103
OUT
SIRCS
SYSTEM
CONTROL
IC1101 (6/7)
CNS504
S141
FLASH1
FLASH2
MD2
MD0
RESET
RESET
1
2
7
6
6
5
FLASH
PROGRAMMING
1
2
I
/ I
HDMI
SECTION
H
132
133
FL101
VACUUM
FLUORESCENT
DISPLAY
RESET
IC1111
46
I
77
11
10
TONE_JOG_4A
TONE_JOG_4B
TONE_JOG_4B
1
3
RV101
TONE
+/-
LED
DRIVER
Q101
1
5
MIC AMP
IC2000
STR-DG900
19
19
STR-DG900
4-7. BLOCK DIAGRAM — POWER SECTION —
(Page 13)
8
12
11
DRIVE
POWER AMP
Q671-674
CURRENT
DETECT
Q675,676
RY240
RY2881
RY600
RY500
PRE DRIVER
IC600
IN 2
+VOUT2
-VOUT2
SPEAKERS
IMPEDANCE
USE 8-16Ω
R
L
FRONT B
L
SURROUND
SURROUND
BACK
(ZONE 2)
CENTER
R
L
R
R-CH
R-CH
R-CH
R-CH
L-CH
R-CH
SL-CH
SBL-CH
R-CH
SR-CH
R-CH
SR-CH
R-CH
TUNER/
AUDIO
SECTION
E
RY911
RY802,803
AC1
AC2
F2
+3.3V
(STBY)
+2.6V
+5V-1
-7V
+7V
TU+9V
RECT
D921-924
T902
POWER
TRANSFORMER
D926
AC IN
DETECT
Q914
D925
D928
AC IN
~
OVERLOAD
DETECT
D675,Q677
6
23
2
3
DRIVE
POWER AMP
Q521-524
CURRENT
DETECT
Q525,526
-30V
-30V REG
Q250
B- SWITCH
Q221,228,235
RELAY
DRIVER
Q911
SUB-T
CONTROL
Q913
B+ SWITCH
Q912
PRE DRIVER
IC500
PRE DRIVER
IC700
IN1
+VOUT1
-VOUT1
OVERLOAD
DETECT
D525,Q527
8
12
11
DRIVE
POWER AMP
Q471-474
CURRENT
DETECT
Q475,476
PRE DRIVER
IC400
IN 2
+VOUT2
-VOUT2
OVERLOAD
DETECT
D475,Q477
RELAY
DRIVER
Q240
RELAY
DRIVER
Q600
RY700
TM602
RY400
RELAY
DRIVER
Q700
RELAY
DRIVER
Q400
21
18
42
PROTECTOR
D201-204
Q200-202,255,256
24
25
60
20
F1
-VCC
+VCC
-30V
OVERLOAD
DETECT
AMP
7
2
IC210
-B-1
-B
+3.3V/+2.6V
REG
4
5
+3.3V
2
IC1901
+5V-2
+5V
REG
1
3
IC1001
+3.3V
REG
1
3
IC1904
+9V
REG
1
3
IC1902
-15V
+15V
+7V
REG
1
3
IC260
-7V
REG
2
3
IC265
+5V
REG
1
3
IC1031
+B
+B-1
INVERTER
Q210
R-CH
R-CH
R-CH
-B-1 +B-1
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
RECT
D801,802
RECT
D865
D865
RECT
D866
D866
T901
POWER
TRANSFORMER
TM2880
R
FRONT A
L
R-CH
TM600
J4586
PHONES
HP-RY
SB-RY
FRONT RY
REAR-RY
C/SB RY
HP DETECT
HP-RY
HP DETECT
SB-RY
FRONT-RY
REAR-RY
C/SB RY
HP_RY
SP_A_RY
REAR_RY
PROTECTOR
HP_CTRL
PW_RY
19
SP_B_RY
45
BRIDGEABLE RY
VOLT_DETECT_STOP
5
SUB-T
CENTER_RY
SYSTEM
CONTROL
IC1101 (7/7)
PRE
DRIVE
PRE
DRIVE
D1110
D1108
D1107
D1111
TM601
C-CH
REAR RY
6
2
3
DRIVE
POWER AMP
Q721-724
CURRENT
DETECT
Q725,726
IN1
+VOUT1
-VOUT1
OVERLOAD
DETECT
D725,Q727
-B-1 +B-1
-B-1 +B-1
-B-1 +B-1
PRE
DRIVE
PRE
DRIVE
RELAY
DRIVER
Q500
RELAY
DRIVER
Q809
R861
R290
D290
D291
R860
F902
F901
J911
AC OUTLET
R851
R852
D251
RELAY
SWITCH
B+ SWITCH
Q220,225
RELAY
DRIVER
Q2880
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to
same as L-ch.
same as L-ch.
STR-DG900
20
20
STR-DG900
for schematic diagram:
• All capacitors are in µF unless otherwise noted. (p: pF)
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : OSD ON
∗
: Impossible to measurement point
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER (FM/AM)
L
: VIDEO (AUDIO)
I
: VIDEO
J
: CD (ANALOG)
c
: CD (DIGITAL)
for printed wiring boards:
• X
: parts extracted from the component side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C
Q
Q
E
B
C
E
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
4-8. CIRCUIT BOARDS LOCATION
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.)
MAIN board
CONNECTION board
DIGITAL board
DISPLAY board
POWER KEY board
ADCC board
HP-AV3 board
DC-SPEAKER A board
STANDBY board
SPEAKER B board
S-VIDEO board
VIDEO board
XM board
HDMI RE board
VIDEO (AU) board
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