Sony STR-DE185 - Main Section Block Diagram

STR-DE185
1212
4-3. BLOCK DIAGRAM — MAIN SECTION —
9
7
5
3
1
1422
49 71 2877 - 72,70 - 62 7 - 1,80 - 78 27 26 25 24 44 23 54 1734
35
15 46 19 18 50 12 10 11 9 13 37 36
45
60
58
59
16
56
57
47
13 5
41 42 43
32 3 1 1 2
4 3
3
IC904
+10V
1
LED
DRIVER
Q204
LED
DRIVER
Q206
55
LED
DRIVER
Q205
KEY MATRIX
FL201
FLUORESCENT
INDICATOR
TUBE
1
REMOTE
CONTROL
RECEIVER
IC202
29
20 3 2
8 9 1015 14
3853 39
1 3
TREBLE
L
MIDDLE
L
BASS
L
CONTROL
VOLUME
CONTROL
FM SG OUT
RDS DATA
RDS INT
STEREO
TUNED
MUTE
CE
DI
DO
CL
FM SIGNAL OUT
RDS DATA
RDS INT
STEREO
TUNED
TUNER MUTE
CE
DO
DI
CL
VOL CL
VOL DATA
CK
DATA
STB
REC SW2 REC SW1
AC MUTE
RY HP
RY A
RY B
PROTECTOR
RY R1 COIL
RY POWER
STOP
AC MUTE
ST-RR-CH
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
ST-L
HP RELAY
SPK A RELAY
RESET
SPK B RELAY
PROTECTOR SIG
R1 COIL RELAY
POWER RELAY
STOP SIGNAL
RESET
SWITCH
Q201,202
BASS B.LED VOL A VOL B X1 X2 VLOAD AD1 AD2 AD3 AD4 AD5 SYS.POWER AD6 SPK A LED SPK B LED
DIG1
I
DIG10
S1
I
S15
SIRCS
S201 S202 S203
I
/
I
SPEAKERS
D205 D206
SPEAKERS
AB
X201
4.19MHz
D203
RV201
MASTER VOLUME
BASS
BOOST
AB
S204-239
SYSTEM CONTROLLER,
FL DRIVER
IC201
J801 (1/2)
J802 (1/2)
-1
L
-2
R
INCD
-5
L
-6
R
INMD/TAPE
J801 (2/2)
VIDEO,MD/TAPE
SELECT
IC404
AUDIO AMP
IC403
SOUND CONTROL
IC401
-3
L
-4
R
OUT
MD/TAPE
J802 (2/2)
-3
L
-4
R
AUDIO OUT
VIDEO 1
-1
L
-2
R
AUDIO INVIDEO 2
-5
L
-6
R
AUDIO INVIDEO 1
FM 75Ω
COAXIAL
AM
ANTENNA
+10V
10V
L CH
R CH
STEREO
TUNED
MUTE
CE
DI
DO
CL
STEREO
TUNED
MUTE
CE
DI
DO
CL
FM SIGNAL
OUT
RDS DATA
RDS INT
FM SG OUT
RDS DATA
RDS INT
3.3V
R CH
+3.3V
REG
-24V F1 F2
REC L
VOL L
OUT L
TUNER
L
CD L
MD L
VIDEO 2
L
IN
L
OUT
VIDEO 1
CLK DATA
CLK STB
DATA
ELECTRONIC
VOLUME
IC402
Q424
INV.
Q474
INV.
TM301
FM/AM TUNER UNIT
AEP,UK
MODEL
POWER
SECTION
1
• Signal path
: FM/AM
: MD/TAPE
: VIDEO 1
: CD
: VIDEO 2
• R-ch is omitted due to
same as L-ch.
(Page 13)