DOWNLOAD Sony STR-DG300 Service Manual ↓ Size: 4.69 MB | Pages: 48 in PDF or view online for FREE

Model
STR-DG300
Pages
48
Size
4.69 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
str-dg300.pdf
Date
PREV: Sony SSN-L1 / SSN-L1P Service Manual

Sony STR-DG300 Service Manual ▷ View online

STR-DG300
29
29
STR-DG300
4-20. PRINTED WIRING BOARD — POWER SECTION —  • Refer to page 15 for Circuit Boards Location.
 : Uses unleaded solder.
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
T901
J911
R921
C950
Q921
R922
R923
C914
C915
C916
D920
D921
D922
D923
R810
R811
CNP804
CNP901
CNP902
CNP801
C924
C913
D914
JW834
JW904
JW901
JW907
CNP903
D913
D911
RY901
F901
F902
T902
Q901
G901
JW905
D915
C920
C921
D910
D912
R903
R902
D901
R904
JW908
JW909
JW910
JW911
JW912
D901
D-2
D910
G-4
D911
G-3
D912
G-3
D913
G-3
D914
G-3
D915
G-3
D920
F-6
D921
F-6
D922
F-6
D923
F-6
Q901
H-2
Q921
G-5
• Semiconductor
Location
Ref. No.
Location
(Page 20)
(Page 16)
(Page 26)
(Page 16)
STR-DG300
30
30
STR-DG300
4-21. SCHEMATIC DIAGRAM — POWER SECTION —
C915
C916
D920
D921
D922
D923
R903
R902
D910
D911
D912
D913
D914
D915
CNP902
R923
R922
R921
C913
C914
C924
CNP903
R904
CNP801
CNP804
R811
R810
C950
JW905
C920
RY901
C921
CNP901
Q901
D901
T902
Q921
J911
T901
F902
F901
(Page 17)
(Page 24)
(Page 26)
(Page 17)
31
STR-DG300
• Waveforms
— DIGITAL Board —
1
IC1301 
qd
 (CKOUT)
2.1 Vp-p
1.8 Vp-p
1V/DIV, 50nsec/DIV
3
IC1301 
wa
 (XOUT)
1V/DIV, 50nsec/DIV
4
IC1501 
9
 (MCLK1)
0.6 Vp-p
1V/DIV, 50nsec/DIV
2
IC1301 
qf
 (BCK)
2.4 Vp-p
1V/DIV, 0.2
µ
s/DIV
13.9 MHz
12.288 MHz
3.07 MHz
12.288 MHz
5
IC1501 
qs
 (MCLK2)
1.1 Vp-p
2.2 Vp-p
1V/DIV, 50nsec/DIV
7
IC1101 
id
 (X1)
1V/DIV, 50nsec/DIV
6
IC1501 
qf
 (SCKOUT)
2.5 Vp-p
1V/DIV, 50nsec/DIV
24 MHz
12.288 MHz
13.9 MHz
32
STR-DG300
IC701  µPC2581V-S (MAIN BOARD (2/2))
• IC Block Diagrams
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
IC1301  LC89056W-E (DIGITAL BOARD (1/5))
13
14
CKOUT
12
A.GND
11
AVDD
4
DIN1
10
LPF
9
VIN
8
R
7
DVDD
6
D.GND
5
DIN2
2
DOUT
1
DISEL
3
DIN0
25
CSFLAG
33
BPSYNC
32
AUTO
31
DGND
30
DVDD
26 27 28 29
F3/P3/C3
F2/P2/C2
F1/P1/C1
F0/P0/C0
35
DO
36
DI
34
ERROR
BCK
15
16
LRCK
DATAO
17
XSTATE
18
19
DGND
DVDD
20
21
XMCK
XOUT
22
XIN
23
24
EMPHA
AUDIO
48
47
XMODE
CKSEL1
46
45
CKSEL0
DOSEL1
44 DOSEL0
43
42
DVDD
DGND
41
40
MODE1
MODE0
39 XSEL
38
37
CLK
CE
INPUT
PLL
DATA
DEMODULATOR
C BIT DETECTION
Pa,Pb DETECTION
MICROPROCESSOR INTERFACE
LOCK
DETECTION
fs
CALCULATION
TIMING
X'TAL1
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