Sony STR-DB870 Service Manual

STR-DB870/DB1070
1919
5-6. SCHEMATIC DIAGRAM – DIGITAL Board (5/5) – • See page 38 for IC Block Diagrams.
CN1108
CN1102
R1798
R1797
R1795
Q1811
CN1109
Q1812
IC1807
Q1703
Q1704
C1702
Q1705
D1703
R1808
R1701
C1213
IC1202
R1280
C1210
C1211
R1220
R1230
C1207
Q1813
R1807
IC1808
FB1202
Q1814
D1803
IC1806 IC1805
C1203
C1208
C1206C1205C1214
R1212
FB1201
R1204
R1201
R1203
R1202
C1201
C1202
C1809
C1812
Q1810
C1212
C1204
R1260
R1270
R1250
R1240
R1805
R1806
IC1201
C1811
C1815
3P
21P
10k
10k
10k
2SB733
2P
RT1N141C
7805
RT1N141C-T
2SC2712-YG
220p
2SC2712-YG
1SS184
10k
10k
10
50V
PCM1748
8.2k
0.1
0.1
8.2k
8.2k
10
50V
2SB733
680
7805
21A
RT1N141C
1SR154
2933 NJM2391-26
0.1
10
50V
0.110 50V4700p
100
21A
10k
100
100
100
330
25V
0.1
470
16V
4700
6.3V
2SD1733
0.1
220
16V
8.2k
8.2k
8.2k
8.2k
680
10k
PCM1604Y/2K
1D
2D
1G
2G
3G
4G
5G
6G
1I
2I
3I
4I
5I
6I
7I
8I
9I
10I
11I
2J
3J
4J
5J
6J
7J
8J
9J
1J
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D1
D2
J1
J5
J4
J3
J2
N1
J7
J6
N
5
N
2
N
4
N
3
O1
O2
O3
O4
*
*
DATA
CLK
+15V
-15V
GND
GND
D.GND
8V
-5V
FUNC-LAT
SB-RY
PRE-RY
2ND-RY
C-RY
REAR-RY
W-FR-RY
HP-RY
SP-FR-RY
HP-CONT
CD-RY
PROTECTOR
AC-MUTE
VOL-LAT
S-MUTE
+5V REGULATOR
O
G
I
D POWER
Q1811,1812
Q1703-1705
MUTING SWITCH
O
G
IO
G
I
B+ SWITCH
+2.5V REGULATOR+3.3V REGULATOR
+5V REGULATOR
O
G
I
D POWER
Q1813,1814
D/A CONVERTER
D/A CONVERTER
(DB1070)
SWITCH
SWITCH
* C1811,1815
1000 16V
1000 63V (DB1070:AEP, UK)
(DB870/EXCEPT DB1070: AEP, UK)
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16)
(Page 18)
(Page 17)
(Page 15)
(Page 37)
(Page 29)
(Page 29)

Sony STR-DB870 Specifications

General

Brand	Sony
Model	STR-DB870
Category	Stereo Receiver
Language	English