Sony STR-DG900 Service Manual ▷ View online
53
STR-DG900
• Waveforms
— DIGITAL Board —
— DIGITAL Board —
1
IC1301
qd
(CKOUT)
3.5 Vp-p
3.2 Vp-p
1V/DIV, 50nsec/DIV
3
IC1301
wa
(XOUT)
1V/DIV, 50nsec/DIV
4
IC1501
9
(MCLK1)
2.3 Vp-p
1V/DIV, 50nsec/DIV
2
IC1301
qf
(BCK)
2.1 Vp-p
1V/DIV, 0.2
µ
sec/DIV
13.9 MHz
12.288 MHz
3.07 MHz
12.288 MHz
5
IC1501
qs
(MCLK2)
2.9 Vp-p
2.8 Vp-p
1V/DIV, 50nsec/DIV
7
IC1101
tj
(X1)
1V/DIV, 50nsec/DIV
6
IC1501
qf
(SCKOUT)
3.3 Vp-p
1V/DIV, 50nsec/DIV
16.5 MHz
12.288 MHz
13.9 MHz
— DISPLAY Board —
3.5 Vp-p
2V/DIV, 0.2
µ
sec/DIV
8 MHz
1
IC100
3
(XOUT)
— XM Board —
1
IC102
wh
(OSCOUT)
0.8 Vp-p
1V/DIV, 50nsec/DIV
45.158 MHz
— VIDEO Board —
1
IC3701
1
(CERA)
1V/DIV, 50nsec/DIV
3
IC3501
8
(EXS)
0.5V/DIV, 0.5
µ
sec/DIV
3.4 Vp-p
2
IC3701
wh
(XNTSC)
0.5V/DIV, 0.2
µ
sec/DIV
14.31818 MHz
0.18 Vp-p
0.15 Vp-p
500 kHz
3.5795 MHz
1
IC5004
oh
(XTAL OUT)
1V/DIV, 50nsec/DIV
2
IC5006
qa
(XOUT)
1V/DIV, 0.2
µ
sec/DIV
3.8 Vp-p
5 MHz
2.4 Vp-p
28.322 MHz
— HDMI RE Board —
54
STR-DG900
IC400 µPC2581V-S (MAIN BOARD (3/4))
IC500 µPC2581V-S (MAIN BOARD (3/4))
IC600 µPC2581V-S (MAIN BOARD (4/4))
IC700 µPC2581V-S (MAIN BOARD (4/4))
IC500 µPC2581V-S (MAIN BOARD (3/4))
IC600 µPC2581V-S (MAIN BOARD (4/4))
IC700 µPC2581V-S (MAIN BOARD (4/4))
• IC Block Diagrams
IC1301 LC890561W (DIGITAL BOARD (1/5))
PROTECTOR
DRIVE
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
PRE
DRIVE
PRE
DRIVE
BIAS CIRCUIT
REG
+VOUT1
MUTE
–VOUT1
NF1
COMP1
COMP2
IN1
GND
IN2
NF2
–VOUT2
+VOUT2
VCC
VCC
VEE
DRIVE
37
CE
38
CLK
39
XSEL
40
MODE0
41
MODE1
42
DGND
43
DVDD
44
DOSEL0
45
DOSEL1
46
CKSEL0
47
CKSEL1
48
XMODE
36
DI
MICRO
CONTROLLER
35
DO
34
ERROR
33
BPSYNC
32
VREF
31
DGND
30
DVDD
29
VF/DATAO2
28
F2/DLMP
27
F1/FSB1
26
F0/FSB0
25
CSFLAG
1
DISEL
2
DOUT
3
DIN0
4
DIN1
5
DIN2
6
DGND
7
DVDD
8
SDIN
9
AGND
10
LPF
11
AVDD
12
AGND
23 EMPHA
22 XIN
24 AUDIO
21 XOUT
20 XMCK
19 DVDD
18 DGND
17 XSTATE
16 DATAO
15 LRCK
14 BCK
13 CKOUT
PA,PB DETECT
REGULATOR
FS CALCULATION
AMP
CLOCK
SELECTOR
DATA SELECTOR
DATA SELECTOR
BUFFER RAM
INPUT SELECTOR
PLL
DEMODULATION
&
LOCK DETECT
C-BIT DETECT
55
STR-DG900
IC1302 TC74HC151AF(EL) (DIGITAL BOARD (1/5))
IC1401 PCM1800E/2K (DIGITAL BOARD (2/5))
SINGLE-END
DEFERENTIAL
CONVERTER
REFERENCE
SINGLE-END
DEFERENTIAL
CONVERTER
DIGITAL
MODULATOR
DIGITAL
MODULATOR
1/64
DECIMATION
FILTER
&
LOW-CUT
FILTER
CLOCK/
TIMING CONTROL RESET/
POWER CONTROL
SERIAL I/O
INTERFACE
&
MODE/FORMAT
CONTROL
LIN
V REF 1
REFCOM
V REF 2
RIN
RSTB
FMT0
BYPASS
FMT1
MODE1
MODE0
FSYNC
1
2
3
4
5
6
8
7
9
11
10
12
AGND
VCC
C PL
C NL
C PR
C NR
DGND
SYSCL
K
DOUT
BCK
LRCK
VDD
24
23
22
21
20
19
17
16
15 14 13
18
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
D3
D2
D1
D0
Y
W
S
C
D4
D5
D6
D7
A
B
D3
D2
D1
D0
Y
XY
OE
GND
V
CC
D4
D5
D6
D7
A
B
C
56
STR-DG900
IC1452 PCM1609APT (DIGITAL BOARD (2/5))
SYSTEM
CLOCK
MANAGER
FUNCTION
CONTROL
INTERFACE
SERIAL
INPUT
INTERFACE
4X/8X
OVER SAMPLING
DIGITAL
FILTER
WITH
FUNCTION
CONTROLLER
ENHANCED
MULTI-
LEVEL
DELTA-
SIGMA
MODULE
ZERO DETECT
DAC
LPF
DAC
LPF
DAC
LPF
DAC
LPF
DAC
LPF
DAC
LPF
DAC
LPF
DAC
LPF
RST
SCKI
SCKO
BCK
TEST
VDD
DGND
DATA1
DATA2
DATA3
ZEROA
LRCK
37
38
39
40
42
43
44
45
46
47
48
41
ZERO1
ZERO2
ZERO3
ZERO4
ZERO5
ZERO6
NC
NC
VOUT6
VOUT5
VOUT4
VOUT3
1
2
3
4
5
6
7
8
9
10
11
12
VOUT2
VOUT1
VCOM
VOUT7
AGND5
VCC5
AGND6
VOUT8
AGND4
VCC4
AGND3
VCC3
13
14
15
16
17
18
19
20
21
22
23
24
ML
MC
MDI
MDO
ZERO8
D
ATA
4
ZERO7
NC
VCC1
AGND1
VCC2
AGND2
36 35 34 33
31
32
30
29
28
27
26
25
IC3253 LA7213 (VIDEO BOARD (1/2))
IC3731 LA7213 (VIDEO BOARD (1/2))
IC3731 LA7213 (VIDEO BOARD (1/2))
1
SYNC
SEP
V-SYNC
SEP
2 3
4
5
V IN
HD
VSS
VD
VDD
Click on the first or last page to see other STR-DG900 service manuals if exist.