Block Diagram - Display/Power Section - Sony STR-DE400 Service Manual

3-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –
• R-CH is omitted due to same as L-CH.
• Signal Path
: FM
MAIN A
SECTION
(Page 14)
FL101
FLUORESCENT
INDICATOR TUBE
F1 F2
14 29 42 31
SEG1-16 GRID1-12
IC100
FL DRIVE
7 8 9
IC101
BUFFER
59 60 47
82 83 38 39 40
X1101
24MHz
FUNCTION FUNCTION FUNCTION
KEY KEY KEY
S131-139
S100-108 S110-116
STR-DE400
IC501
POWER AMP
Q503
+V OUT2 12
BOOSTER
Q501,502
LIMITER
L 8 IN2 NF2 9
Q505,506
Q504
-V OUT2 11 CURRENT
BOOSTER
DETECT
IC601
POWER AMP
Q603
+V OUT2
12
BOOSTER
Q601,602
LIMITER
SL SL 8 IN2 NF2 9
Q605,606
Q604
-V OUT2 11 CURRENT
BOOSTER
DETECT
IC701
POWER AMP
Q703
+V OUT2 12
BOOSTER
Q701,702
LIMITER
C 8 IN2 NF2 9
Q705,706
Q704
-V OUT2 11 CURRENT
BOOSTER
DETECT
SW
D883
62 66 68 67 61
SYSTEM CONTROLLER
IC1101(3/3)
65 64 56
3 1
S152
ENCODER
?/1
RV102
MASTER
VOLUME
RY502
Q509
RELAY
DRIVE
RY501
Q507
Q508
RELAY
AF POWER
DRIVE
PROTECT
RY601
Q607
Q608
AF POWER RELAY
PROTECT DRIVE
RY701
Q707 Q708
AF POWER RELAY
PROTECT DRIVE
Q560
RELAY
DRIVE
Q881-883
PROTECT
SWITCH
55
FUSE DETECT 63
IC102
REMOTE
SIRCS 54 1 CONTROL
RECEIVER
AVCC 35
VCC3 84
VCC5 23
RSTX 77 1
STOP 48
58
15 15
R-CH
J700
PHONES
TM600(1/2)
L
FRONT
R-CH R
TM602
L
SURROUND
R-CH R
SPEAKERS
IMPEDANCE USE 6-16Ω
TM600(2/2)
CENTER
+3.3V
+2.5V
J403
AUDIO OUT SUB WOOFER
+5V
RY702
+B
–B
Q851,852
POWER AMP
–B
–B
IC850(1/2) IC850(2/2) SWITCH
2 1 5 7
FL101
Q801
–20V
–20V REG
RELAY
+B
IC821
AUDIO +7V
1 3
+7V REG
IC822
AUDIO
–7V
3 2
–7V
REG
IC1001 IC1902
AUDIO +5V TUNER +10V
3 1 3 1
+5V REG +10V REG
AEP,UK, RU
IC1071
TUNER
+3.3V
3 1
+3.3V
REG
+3.3V(STBY)
IC1904
+3.3V
3 1
REG
IC1111
RESET 2
Q911
AC DET
STR-DE400
Ver. 1.1
IC1901
+3.3V
2
REG
4
+2.5V
5
REG
T901
D804-807
IC1031
+5V
3 1
REG
D811
R803
D920-923
F1
F2
D910-913
T902
D914 D915
RY901
Q901
RELAY
DRIVE
AC
IN