Display/Power Section - Sony STR-DE575 Service Manual

– DISPLAY/POWER SECTION –
L
• R-CH is omitted due to same as L-CH
• Signal Path
: FM
: CD(ANALOG)
: DVD (DIGITAL)
SL SL
A
C
FL101
SW
FLUORESCENT
INDICATOR TUBE
POWER
FL1 FL2
MUTING
LED DRIVE
Q747,748
IC100
14 29 42 31
D106-109
SEG1-16 GRID1-12 LEVEL LED 2
NAME LED 3
SUR LED 1
SETUP LED 4
7 8 9
D100-105
BUFFER
IC101
LED DRIVE
Q100-105
61 62 63 40 32 31 30 25 29 22
82 83 38 39 40 41
X1601
20.0MHz
FUNCTION FUNCTION FUNCTION FUNCTION
KEY KEY KEY KEY
S100-117 S101-103, S118-125 S128-137
S105-107
POWER AMP
IC701
BOOSTER
+V OUT2 12
Q703
LIMITER
Q701
8 IN2 NF2 9
AF POWER
LIMITER
PROTECT
Q702
Q740
CURRENT
BOOSTER
-V OUT2 11 DETECT
Q704
Q705,706
BOOSTER
+V OUT1 2
Q653
LIMITER
Q651
6 IN1 NF1 5
AF POWER
LIMITER
1 MUTING PROTECT
Q652
Q640
CURRENT
BOOSTER
-V OUT1 3 DETECT
Q654
Q655,656
POWER AMP
IC501
BOOSTER
+V OUT 6
Q503
LIMITER
Q501
1 IN+ IN- 2
AF POWER
LIMITER
PROTECT
Q502
Q540
CURRENT
BOOSTER
-V OUT 5 DETECT
Q504
Q505,506
D721
PROTECT
SWITCH
Q722,723,725
IC401
5 7
67 68 72 70 71 69 26
SYSTEM CONTROL
IC1601(3/3)
58 57 60 59 56
3 1 3 1
S138
ENCODER ENCODER
?/1
RV101 RV102
JOG MASTER
DIAL VOLUME
R-CH
PHONES
RY791
RELAY
DRIVE
Q790
TM602
L
RY701
FRONT
D731
RELAY
R-CH R
DRIVE
Q710
TM601
R-CH SR
SURROUND
SL
RY601
D733 RELAY
DRIVE C CENTER
Q610
RY501
D734
RELAY
DRIVE
Q550
J405
AUDIO
OUT
RY560
RELAY
DRIVE
Q560
IC601 IC601
2 1 5 7
+3.3V
TUNER
+3.3V
AUDIO
+5V
IC102
D1911
REMOTE
BUFFER
SIRCS 54 1 CONTROL 2
Q1603
RECEIVER
AVCC 35
IC1904
VCC3 84
+3.3V
VCC5 23 3 1
REG
RESET
RESET 77
Q1604,1605
STOP 47
66
B
RESET
11 11
J791
SPEAKERS
IC1901
+3.3V
+3.3V
3 1
REG
IC1902
+2.5V
+2.5V 3 1
REG
D1901-1904
IC1903
+5V
SUB +5V 3 1
REG
WOOFER
D802
+B
-B
POWER AMP -B SW
-B
Q691,692
FL101
-30V REG
-30V Q801
D820-823
RELAY
+B
IC801
AUDIO +7V
1 3
+7V REG
+3.3V REG
D899
Q471
IC802
IC803 AUDIO
-7V
3 2 D898
-7V REG
+3.3V
3 1
REG
IC807
IC1503 VIDEO
+5V
3 1
+5V REG
+5V
3 1
REG
IC804
VIDEO
-5V
3 2 FL1
-5V
REG
IC806
FL2
TUNER +12V
3 1
+12V
REG
+5.6V REG
Q1606
D910-913
3
POWER
8 CONTROL 5
IC1605
6
D914
RY901
RELAY
DRIVE
Q901
STR-DE575/K502/K502P
T901
F901
T902
JW903
AC
IN
D915