Block Diagram - Sony STR-DE375 Service Manual

3-2. BLOCK DIAGRAM

TUNER UNIT
L OUT
FM FM
R OUT R-CH
AM AM DET OUT
PLL DATA
DATA OUT
S DATA
S DATA
S CLK
S CLK
S CE
SLAT
SIGNAL
SIGNAL
STEREO
STEREO
AUTO STOP
TUNED
T MUTE
T MUTE
J401,402
CD IN
MD/TAPE OUT
MD/TAPE IN
VIDEO/AUDIO OUT
VIDEO/AUDIO IN
J501
SUB
WOOFER
FRONT
DVD/
MULTI CH
SURROUND
CENTER
• RCH is omitted due to same as LCH.
• Signal Path
: FM
: CD
28 23 21 22
12
X201
5.00MHz
AUDIO SELECT
IC201
66 IN F2 L CH OUT
71
IN A2
61 REC OUT 2A
70 IN B2
61 REC OUT 2B
63 IN G2
27
SW CH N IN
SL CH OUT
60 SEL OUT2
59 D OUT2
C CH OUT
DOLBY
SURROUND PROCESSOR
IC202
61 RT IN L OUT 16 58 T IN2
34 FC R IN SR OUT 18 44 SL CH N IN
45 SL CH D IN
32 C OUT 10 38
FC SR IN C CH N IN
39
C CH D IN
62 FC C IN
DATA
52 DATA SW CH OUT
CLK DATA
53 CLK 32 DATA
CLOCK
51 ENABLE 31 CLOCK
S CE
33 LATCH
AEP,UK MODELS
RDS
2
IC1
4
16
14 13
X1
4.33MHz
24 19 18 20 38 15 17 7 8 9
SYSTEM CONTROL
IC103
A/D1 A/D4
11 63 64 65 66 68 33 30 50 49
3 1
LED DRIVE FUNCTION
ENCODER
Q210-213,215 KEY
S202-229,231-236 RV201
MASTER
VOLUME
SYSTEM
D210-213,D215
POWER AMP
IC701
BOOSTER
+V OUT1 2
Q703
LIMITER
Q701
49 6 IN1 NF1 5
MUTE LIMITER
Q361 Q702
CURRENT
BOOSTER
-V OUT1 3 DETECT
Q704
Q705,706
BOOSTER
+V OUT2 12
Q653
LIMITER
Q651
43 8 IN2 NF2 9
MUTE LIMITER
Q362 Q652
CURRENT
BOOSTER
-V OUT1 11
DETECT
Q654
Q655,656
POWER AMP
IC501
BOOSTER
+V OUT 6
Q503
LIMITER
Q501
1
37 IN+ IN- 2
MUTE LIMITER
Q363 Q502
CURRENT
BOOSTER
-V OUT 5 DETECT
Q504
Q505,506
D721
PROTECT
SWITCH
Q722,723,725
IC401
3 1
28
MUTE
Q364
59 47 54 53 51 52 55 61
SIRCS 26
VDD 1
VDD 16
VDD 34
VDD 46
RESET 10
DIG1-10 S1-S15 STOP 39
.
56 100 91 90 80 78 75 48
F1 F2
FLUORESCENT
INDICATOR TUBE
FL201
S200
?/1
POWER
9 9
RY791
RELAY
DRIVE
Q791
RY710
Q707 D706
D731
OVER LOAD RELAY
DETECT DRIVE
Q708,709 Q730
RY610
Q659
D606 D735
OVER LOAD RELAY
DETECT DRIVE
Q657,658 Q610
D506
RY510
OVER LOAD D734 RELAY
DETECT DRIVE
Q507,509 Q550
D736
RY470
RELAY
DRIVE
Q470
POWER AMP
-B SW
-B
Q715
POWER AMP
+B
FL201
-24V REG
-24V Q801
IC801
D824
POWER AMP +12V
3 1
+12V REG
RELAY
+B
IC805
DOLBY SURR +9V
3 1
+9V REG
IC803
DISPLAY +5V
3 1
+5V(A) REG
IC804
TUNER,RDS
+5V
AUDIO 3 1
REG
+5V(B)
IC807
AUDIO
+7V
3 1
IC203
+7V REG
REMOTE D202
1 CONTROL 2
IC802
RECEIVER
AUDIO -7V
3 2
-7V
REG
D201
+5.6V REG
Q951
RESET
Q201,202
3
POWER
8 CONTROL 5
IC950
6
STR-DE375
R-CH
J200
PHONES
TM602
L
SPEAKERS
FRONT
R-CH R
TM601
R-CH SR
SPEAKERS
SURROUND
SL
C
SPEAKERS
CENTER
J403
SUB WOOFER
AUDIO OUT
E MODEL
VOLTAGE
SELECTOR
T901 S901
D802 240V
220V
120V
0V
D820-823
F1
F2
T902
D910-913
AC
IN
CNP901
D914 D915
RY901
RELAY
DRIVE
Q901