Schematic Diagram - Digital Board (5/5) - Sony STR-DB1070 - Fm Stereo/fm-am Receiver Service Manual

5-6. SCHEMATIC DIAGRAM – DIGITAL Board (5/5) – •
1G
2G
3G
4G
5G
6G
(Page
16)
N1
O1
C1201
C1202
330
0.1
25V
O2
R1202 100
O3
R1203 100
O4
R1201
100
1J
2J
3J
(Page 18)
4J
5J
6J
7J
8J
9J
See page 38 for IC Block Diagrams.
(DB1070)
FB1201 21A C1214 4700p C1205 10 50V C1206 0.1
C1212 C1208
0.1 10
50V
R1204
10k
D/A CONVERTER
IC1201
PCM1604Y/2K
C1204
220
16V
FB1202
21A
+5V REGULATOR
C1815
*
* C1811,1815
1000 16V (DB870/EXCEPT DB1070: AEP, UK) +3.3V REGULATOR
1000 63V (DB1070:AEP, UK) IC1806
2933
O I
G
C1811
*
(Page 17)
R1212 100
C1213
10
50V
J1
R1280
8.2k
IC1202
PCM1748
D/A CONVERTER
C1210
0.1
C1211
0.1
C1207
10
50V
R1220
8.2k
J7
J6
R1701
10k
R1230
8.2k
D1703
1SS184
Q1705
2SC2712-YG
Q1813,1814
D POWER C1702
220p
SWITCH
IC1808
7805 Q1813
2SB733
O I
G
Q1703
RT1N141C-T
R1807 R1808
680 10k
Q1703-1705
MUTING SWITCH
Q1814
RT1N141C
D1803
1SR154
+5V REGULATOR
+2.5V REGULATOR IC1807
Q1810
7805
IC1805 2SD1733
NJM2391-26
B+ SWITCH
O I O I
G G
C1812
4700
C1809
6.3V
470
16V
19 19
(Page 15)
R1798
10k
CN1108
3P
-5V
R1797
10k
D.GND
8V
R1795
Q1704 10k
2SC2712-YG
CN1102
21P
DATA
CLK
FUNC-LAT
D14
SB-RY
D13
PRE-RY
D12
Q1811,1812
2ND-RY
D11
D POWER
C-RY
D10
SWITCH
REAR-RY
D9
W-FR-RY
D8
Q1811
2SB733 D7 HP-RY
R1806
R1805 SP-FR-RY
D6
10k
680
HP-CONT
D5
CD-RY
D4
PROTECTOR
D3
D2 AC-MUTE
Q1812 VOL-LAT
D1
RT1N141C
S-MUTE
GND
GND
-15V
+15V
CN1109
2P
STR-DB870/DB1070
(Page 37)
(Page 29)
(Page 29)