Power Section - Sony STR-DE875 Service Manual
Fm stereo fm-am receiver
Hide thumbs
Also See for STR-DE875:
- Dimensions (1 page) ,
- Operating instructions manual (75 pages) ,
- Limited warranty (1 page)
Table of Contents
Advertisement
– DISPLAY/POWER SECTION –
L
• R-CH is omitted due to same as L-CH
• Signal Path
: FM
: CD/SACD
: DVD/LD (DIGITAL)
SL
SL
A
C
D101-117
FL101
SW
FLUORESCENT
INDICATOR TUBE
FL1
FL2
2 23
1,70 37
22
30 ,10,9, 7
1
G1-22
P1-35
IC102
IC101
LED DRIVER
FL DRIVER
28
30
31
32
16
17
18
19
IC1161
IC1151
11
8
3
6
3
6
8
11
12
13
9
10
2
1
5
4
2
1
5
4
10
9
12
13
+5V (STBY)
2ND_DATA
2ND_CLK
D
112
111
113
114
4
3
6
5
119
132
133
134
135
58
57
X1101
16.5MHz
FUNCTION
FUNCTION
FUNCTION
FUNCTION
KEY
KEY
KEY
KEY
S101-107
S111-117
S121-127
S131-136
S118
DE975
IC551
POWER AMP
Q423
+V OUT2
12
BOOSTER
Q421
LIMITER
8
IN2
NF2
9
Q427
Q422
AF POWER
LIMITER
PROTECT
Q425,426
Q424
-V OUT2
11
CURRENT
BOOSTER
DETECT
Q523
+V OUT1
2
BOOSTER
Q521
LIMITER
6
IN1
NF1
5
Q522
Q527
1
MUTING
AF POWER
LIMITER
PROTECT
Q524
Q525,526
-V OUT1
3
CURRENT
BOOSTER
DETECT
IC601
POWER AMP
Q623
+V OUT
6
BOOSTER
Q621
LIMITER
1
IN+
IN-
2
Q627
Q622
AF POWER
LIMITER
PROTECT
Q625,626
Q624
-V OUT
5
CURRENT
BOOSTER
DETECT
D752
Q751-753
PROTECT
SWITCH
IC304
3
1
Q721,722
POWER
MUTING
IC1131
EEPROM
5
6
20
15
16
18
17
19
99
100
IC1101(3/3)
SYSTEM CONTROLLER
136
8
7
11 10
12 13
62
14
3
1
3
1
3
1
S161
S151
FUNCTION
ENCODER
ENCODER
ENCODER
KEY
SPEAKERS
S141-146
RV103
RV102
RV101
S147
(CURSOR)
FUNCTION
MASTER VOLUME
DE975
RY701
R-CH
Q701
RELAY
DRIVER
TM501
L
RY401
D432
Q431
RELAY
R-CH
R
DRIVER
TM601
R-CH
SR
SL
RY501
D532
Q531
RELAY
C
DRIVER
RY601
D632
Q631
RELAY
DRIVER
J306
RY681
Q681
RELAY
DRIVER
IC305
2
1
5
7
C
SIRCS OUT
21
IC103
REMOTE
Q1106
SIRCS
66
1
CONTROL
2
BUFFER
RECEIVER
+5V (STBY)
IC1021
+3.3V
+3.3V (STBY)
3
1
REG
(IC1101)
IC1111
RSTX
55
1
RESET
2
VOLT_DETEC_STOP
60
22
41
B
RESET
11
11
J701
PHONES
FRONT
SPEAKERS
SURROUND
CENTER
IC1041
+3.3V
+3.3V
3
1
REG
D851-854
IC1051
IC1031
+2.5V
+5V
+2.5V
3
1
3
1
AUDIO
SUB
REG
REG
WOOFER
OUT
IC1011 PIN1
S801
IMPEDANCE
SELECTOR
FRONT
8Ω
4Ω
D801
+B
-B
POWER AMP
Q723,724
-B
-B SW
D804
D805
FL101
Q801
+30V
+30V REG
D861-864
RELAY
+B
IC811
ANALOG
+7V
1
3
+7V
REG
Q821
+3.3V
D871
(IC303)
+3.3V REG
IC812
IC1071
ANALOG
-7V
3
2
D872
-7V
REG
TUNER
+3.3V
3
1
+3.3V
REG
IC814
IC1001
VIDEO
+5V
3
1
+5V
REG
ANALOG
+5V
3
1
+5V
REG
IC815
VIDEO
-5V
3
2
-5V
REG
IC1061
TUNER
+12V
3
1
+12V
REG
IC1011
D927
Q912,913
+5V
3
1
REG
+B SW
D921-924
Q921
VOLTAGE
DET
D925
Q911
RELAY
DRIVER
STR-DE875/DE975
T901
D875:E
S901
240V
VOLTAGE
220V
SELECTOR
120V
F904
0V
FL1
FL2
J911
F901
AC
OUTLET
F902
T902
JW809
AC
IN
D926
RY911
Hide quick links:
Advertisement
Table of Contents
