Block Diagram - Main Section - Sony STR-DE185 Service Manual

STR-DE185
4-3. BLOCK DIAGRAM — MAIN SECTION —
TM301
FM/AM TUNER UNIT
+10V
10V
L CH
FM 75Ω
COAXIAL
R CH R CH
ANTENNA
STEREO
AM
TUNED
MUTE
CE
DI
DO
CL
FM SIGNAL
OUT
RDS DATA
RDS INT
3.3V
+3.3V
3
REG
IC904
AEP,UK
MODEL
53
LED
DRIVER
Q206
D203
BASS
BOOST
TUNER
L
9
J801 (1/2)
-1
CD L
STEREO
7
L
TUNED
CD IN
MUTE -2
R-CH
R
CE
-5
MD L
DI
5
L
DO
MD/TAPE IN
CL -6
R-CH
R
FM SG OUT J802 (1/2)
VIDEO 2
RDS DATA
-1
3
RDS INT L
VIDEO 2 AUDIO IN
-2
R-CH
+10V R
1
-5 VIDEO 1
1
L
VIDEO 1 AUDIO IN
-6
R-CH
R
22 15 46 19 18 50 12 10 11 9
38 39 34 35 49 71 77 - 72,70 - 62
X201
4.19MHz
1 3 1
REMOTE
CONTROL
RECEIVER
RV201
IC202
MASTER VOLUME
-24V
SOUND CONTROL AUDIO AMP
IC401 IC403
REC L
32 3 1
VOL L
29
TREBLE
L
MIDDLE
L
ELECTRONIC
VOLUME
BASS
IC402
L
L L
OUT L
IN OUT
20 3
CONTROL VOLUME
CONTROL
15 14 8 9 10
14 13 41 42 43
SYSTEM CONTROLLER,
FL DRIVER
IC201
7 - 1,80 - 78 28 27 26 25 24 44
KEY MATRIX
FL201
FLUORESCENT
S201 S202 S203
S204-239
INDICATOR
/ I
I
TUBE
SPEAKERS
F1 F2
12 12
VIDEO,MD/TAPE
SELECT
IC404
J801 (2/2)
-3
1 2
L
OUT
-4
4 3 R-CH
R
J802 (2/2)
13 5
-3
L
AUDIO OUT VIDEO 1
Q474 Q424 -4
R-CH
INV. INV.
R
2 ST-L
R-CH ST-R
37 36
AC MUTE 45 AC MUTE
RY HP 60 HP RELAY
RY A SPK A RELAY
58
RY B SPK B RELAY
59
PROTECTOR 16 PROTECTOR SIG
RY R1 COIL R1 COIL RELAY
56
RY POWER 57 POWER RELAY
STOP 47 STOP SIGNAL
23 54 55 17
• Signal path
RESET
LED LED
SWITCH
DRIVER DRIVER
Q201,202
Q204 Q205
A B
D205 D206
A B
• R-ch is omitted due to
SPEAKERS
same as L-ch.
MD/TAPE
POWER
1
SECTION
(Page 13)
: FM/AM
: MD/TAPE
: VIDEO 1
: CD
: VIDEO 2