Diagrams; Block Diagram - Sony STR-DE245/DE345 Service Manual

3-1. 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
CD
OUTPUT
MD/
TAPE
INPUT
OUTPUT
VIDEO
INPUT
J501
WOOFER
FRONT
5.1
CH/DVD
REAR
CENTER
• RCH is omitted
• Signal Path
: FM
: CD
: VIDEO
28 23 21
DE345 MODEL
5.1CH
VIDEO SELECT
(VIDEO IN)
J281 IC281
5.1 IN 12 V3
TV/LD 1 V1 S1 13 2 S1
S2 2 3 S2
J282 S2 4
OUT
5 OUT
M 11 4 IC MUTE
VIDEO1
IN 3 V2
MONITOR OUT 10 M OUT
16
12
X201
5.00MHz
SECTION 3

DIAGRAMS

AUDIO SELECT
IC201
66 IN F2 L OUT
71
IN A2
61 REC OUT 2A
70 IN B2
61 REC OUT 2B
63 IN G2
27 SW CH N IN
SL OUT
60 SEL OUT2
59 D OUT2
C OUT
DOLBY
SURROUND PROCESSOR
IC202
61 LT IN L OUT 16 58 T IN2
34 FC L IN SL OUT 18 44 SL CH N IN
45
SL CH D IN
32 FC SL IN C OUT 10 38 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 31
ENABLE CLOCK
S CE
33 LATCH
AEP,UK,Russian,
East European MODEL
RDS
2
IC1
4
16
14 13
X1
4.33MHz
22 24 19 18 20 38 15 17 7 8 9
SYSTEM CONTROL
IC103
A/D1 A/D4
33 30
11 63 64 65 66 69 68 45 50 49
2 3
LED DRIVE LED DRIVE FUNCTION
ENCODER
Q210-215 Q126 KEY
S206-235 RV201
S236,237
CE MODEL ONLY
SYSTEM
D216
MUTING
D210-215
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
37 1 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
SIRCS 26
VDD 1
VDD 16
VDD 34
VDD 46
RESET 10
DIG1-10 S1-S15
STOP 39
.
100 91 90 80 78 75
56 61 48
F1 F2
ON
FLUORESCENT
OFF INDICATOR TUBE
FL201
S200 S201
SP
POWER
7 7
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
D202
REMOTE
1 2
CONTROL IC802
RECEIVER
AUDIO -7V
3 2
-7V REG
D201
+5.6V REG
Q951
RESET
Q201,202 3
POWER
8 CONTROL 5
IC950
6
R-CH
PHONES
TM602
L
SPEAKERS
FRONT
R-CH R
TM601
R-CH SR
SPEAKERS
REAR
SL
C
SPEAKERS
CENTER
J403
SUB
WOOFER
E,Saudi Arabia,PX MODEL
VOLTAGE
SELECTOR
T901 S901
D802 240V
220V
120V
0V
D820-823
F1
F2
T972
D910-913
AC
IN
D914 D915
RY901
RELAY
DRIVE
Q470