Read Sony STR-DE185 Service Manual online
STR-DE185
12
12
4-3. BLOCK DIAGRAM — MAIN SECTION —
9
7
5
3
1
14
22
49
71
28
77 - 72,70 - 62
7 - 1,80 - 78
27
26
25
24
44
23
54
17
34
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 10
15
14
38
53
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
RY B
PROTECTOR
RY R1 COIL
RY POWER
STOP
AC MUTE
ST-R
R-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
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
A
B
X201
4.19MHz
D203
RV201
MASTER VOLUME
BASS
BOOST
A
B
S204-239
SYSTEM CONTROLLER,
FL DRIVER
IC201
J801 (1/2)
J802 (1/2)
-1
L
-2
R
IN
CD
-5
L
-6
R
IN
MD/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 IN
VIDEO 2
-5
L
-6
R
AUDIO IN
VIDEO 1
FM 75
Ω
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
L
CD L
MD L
VIDEO 2
L
IN
IN
L
OUT
OUT
VIDEO 1
CLK
DATA
CLK
STB
DATA
ELECTRONIC
VOLUME
IC402
Q424
INV.
Q474
INV.
TM301
FM/AM TUNER UNIT
AEP,UK
MODEL
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.
same as L-ch.
(Page 13)
Click on the first or last page to see other STR-DE185 service manuals if exist.