Sony STR DE185 Schematic
STR-DE185
4-3. BLOCK DIAGRAM — MAIN SECTION —
TM301
ANTENNA
FM 75Ω
COAXIAL
AM
FM/AM TUNER UNIT
STEREO
FM SIGNAL
RDS DATA
RDS INT
AEP,UK
MODEL
10V
L CH
R CH
TUNED
MUTE
OUT
3.3V
+10V
R CH
STEREO
TUNED
MUTE
+10V
CE
DI
DO
CL
CE
DI
DO
CL
FM SG OUT
RDS DATA
RDS INT
+3.3V
3
1
REG
IC904
VIDEO,MD/TAPE
SOUND CONTROL
IC401
TUNER
L
9
J801 (1/2)
-1
L
INCD
-2
R
-5
L
INMD/TAPE
-6
R
J802 (1/2)
-1
L
AUDIO INVIDEO 2
-2
R
-5
L
AUDIO INVIDEO 1
-6
R
R-CH
R-CH
R-CH
R-CH
CD L
7
MD L
5
VIDEO 2
3
VIDEO 1
1
REC L
VOL L
TREBLE
L
MIDDLE
L
BASS
L
OUT L
CONTROL
CLK
32 3 1 1 2
29
20 3 2
DATA
AUDIO AMP
IC403
ELECTRONIC
VOLUME
IC402
L
IN
VOLUME
CONTROL
CLK
DATA
8 9 1015 14
STB
L
OUT
SELECT
IC404
4 3
13 5
Q474
INV.
Q424
INV.
R-CH
R-CH
J801 (2/2)
J802 (2/2)
-3
L
-4
R
-3
L
-4
R
OUT
AUDIO OUT
ST-L
ST-RR-CH
MD/TAPE
VIDEO 1
LED
DRIVER
Q206
D203
BASS
BOOST
BASS B.LED
DI
CE
CL
DO
MUTE
TUNED
STEREO
RDS INT
RDS DATA
FM SG OUT
15 46 19 18 50 12 10 11 9 13 37 36
TUNED
STEREO
RDS INT
RDS DATA
FM SIGNAL OUT
VOL A
VOL B
3853 39
1 3
RV201
MASTER VOLUME
DI
CE
DO
TUNER MUTE
X1
X2
35
X201
4.19MHz
CL
SIRCS
49 71 2877 - 72,70 - 62 7 - 1,80 - 78 27 26 25 24 44 23 54 1734
1
REMOTE
CONTROL
RECEIVER
IC202
I
VLOAD
-24V F1 F2
DIG1
DIG10
FLUORESCENT
INDICATOR
FL201
TUBE
1422
VOL CL
VOL DATA
SYSTEM CONTROLLER,
FL DRIVER
IC201
I
S1
S15
AD1
AD2
KEY MATRIX
S204-239
AD3
AD4
AD5
41 42 43
CK
STB
DATA
SYS.POWER
AD6
S201 S202 S203
I
/
I
AB
SPEAKERS
SPK A LED
LED
DRIVER
Q204
D205 D206
AB
SPEAKERS
REC SW2
55
LED
DRIVER
Q205
REC SW1
SPK B LED
AC MUTE
RY HP
RY A
RY B
PROTECTOR
RY R1 COIL
RY POWER
STOP
RESET
45
60
58
59
16
56
57
47
RESET
SWITCH
Q201,202
1
AC MUTE
HP RELAY
SPK A RELAY
SPK B RELAY
PROTECTOR SIG
R1 COIL RELAY
POWER RELAY
STOP SIGNAL
• Signal path
: FM/AM
: MD/TAPE
: VIDEO 1
: CD
: VIDEO 2
• R-ch is omitted due to
same as L-ch.
POWER
SECTION
(Page 13)
1212
4-4. BLOCK DIAGRAM — POWER SECTION —
STR-DE185
MAIN
SECTION
(Page 12)
1
ST-L
ST-R
AC MUTE
HP RELAY
SPK A RELAY
SPK B RELAY
PROTECTOR SIG
R1 COIL RELAY
R-CH
INV.
Q681
+B
MUTE CONTROL
Q680
RY783
R-CH
R-CH
R-CH
J803
PHONES
L
R
L
R
A
SPEAKERS
IMPEDANCE
USE 8-16Ω
B
TM801
PRE DRIVER
IC601
PRE
DRIVE
IN 1
6
DRIVE
BIAS
MUTE
1 13 14 15
+VOUT
2
-VOUT
3
VCC1
VCC2
VEE
-B
+B
+B
-B
POWER AMP
Q701-704
OVERLOAD
DET
Q705,706
R-CH
PROTECT
SWITCH
Q784-786
RELAY DRIVER
Q903
RECT
D907
D786
D787
D789
RELAY DRIVER
RELAY DRIVER
RELAY DRIVER
RY981
Q781
Q782
Q783
T901
POWER
TRANSFORMER
RY781
RY782
POWER RELAY
STOP SIGNAL
-24V
+5V
+10V
+5.6V
-24V
REG
Q904
+5V REG
3 1
IC902
+10V REG
3 1
IC903
+5.6V
REG
Q902
OUT C V+
8
RESET
VSA
2
VSC
RESET/+5.6V REG
IC901
RELAY DRIVER
Q901
53
VSB/SESIN
RECT
D908-911
F2
RY982
RECT
D901-904
67
F2
D905 D906
T902
POWER
TRANSFORMER
F902
F901
• Signal path
: FM/AM
CNJ901
AC
OUTLET
SWITCHED 120W/1A MAX
AC 120V 60 Hz (US)
SWITCHED 100W MAX
(AEP,UK)
~
AC IN
• R-ch is omitted due to
same as L-ch.
13 13
STR-DE185
4-5. PRINTED WIRING BOARD — MAIN SECTION — • Refer to page 11 for Circuit Boards Location and page 15 for Common Note on Printed Wiring Boards.
A
B
C
D
E
F
1
301
TM
IC904
C927
C926
R922
234567891011121314
R921
J801
400
R451
C454 C404
C402
C452
435
436
437
438
JW
JW
JW
R925
R924
434
JW
CN4
JW
442
443
441
JW
JW
JW
R481
C931
R452
R920
R482
CN3
R919
R402
R475
R425
JW422
R426
C476
R476
C470
C472
R465
C464
C465
C484
C607
CC453
R463
R466
C490
C422
420
JW
R403
440
JW
R926
C426
C463
C483
423
JW
R605
R468
CC403
C420
R418
C471
517
JW
R415
R467
446
JW
CC455
C456
IC401
C415
C414
C421
C485
R455
R655
R456
JW410
C413
R416
R417
C657
R454
R404
R453
R401
CC401
CC451
CC405
R406
R413
IC402
R405
C406
C467
C466
C468
C417
C416
R414
424
JW
C469
409
JW
C701
JW
408
JW
JW425
Q703
R704
C702
CC457
407
JW
419
JW
R464
C418
R483
C458
406
JW
418
JW
R457
R484
502
JW
427
JW
C424
R458
C419
R485
447
JW
414
JW
D914
448
JW
J802
C408
R702
R703
Q702
R408
503
JW
501
JW
R407
R701
R460
CC407
C460 C410
405
JW
417
415
JW
JW
Q424
R424
520
JW
C474
JW426
JW428
JW429
JW431
JW430
R681
Q680
Q701
R459
R427
Q681
C682
R706
R705
C703
R410
Q474
R471
Q704
CC459
R472
R409
IC404
R474
IC403
CC409
R462
516
JW
416
JW
R604
R697
JW519
JW444
JW451
JW450
C462
C928
C606
C604
R461
R421
CC461
R478
C602
JW453
R708
JW449
R411
JW504
R423
R473
R602
R477
R422
CC411
C782
R789
C601
C603
505
JW
C412
R428
C475
IC601
R603
C425
Q705
494
JW
C652
C925
R412
R713
R788
R652
R709
C705
C924
C651
C704
IC903
786
Q
R653
R707
R714
L701
C781
C654
R712
D788
JW506
R790
D785
D784
C656
Q706
RY783
Q785
C653
R711
TM801
490
JW
C922
C918
C923
T902
F901
F902
JW491
CN5
TP1
D789
492
493
JW
JW
(Page 19)
(Page 15)
C791
CNP901
CNP906
CNP905
R915
C917
C916
B901
D911
D909
D910
D908
EP901
903
R
(Page 15)
T901
D982
RY982
TP5
CNP904
498
R786
R787
495
JW
JW
RR752
CC753
CC703
RR702
479
JW
D783
R762
C755
R764
R763
Q784
D701
R794
R654
C930
C929
515
JW456
JW
R929
H2
518
JW
JW
461
JW
R710
JW482
RY782
R795
R785
L751
D751
CC704
JW481
JW480
JW508
CC754
D782
JWH1
484
514
513
JW
JW
JW
496
JW
JW455
R930
JW472
H3
JW465
JW
JW466
C752
JW457
JW467
JW459
JW464
JW460
JW463
JW462
507
JW
R761
R760
C914
R759
C751
R754
Q753
C915
Q755
JW468
469
JW
470
JW
R756
R751
R757
R752
R753
Q752
JW509
Q756
C754
Q751
JW511
JW510
RR751
CC752
CC751
CC702
CC701
476
JW
D907
475
JW
474
473
JW
JW
R916
C919
D912
R923
C920
R758
783
C753
Q
JW471
Q754
755
R
RR701
C913
C912
782
Q
R901
R783
478
JW
4
R90
Q904
R917
JW445
R782
904
D
Q901
911
R
RY981
D787
C909
R907
R909
D786
D903
C910
R912
R910
485
JW
C902
R908
D981
D905
C908
IC901
477
JW
D781
RY781
906
D
C905
R784
901
C
C906
R905
C903
R913
R906
NP903
C
Q903
D901
JW488
Q781
D913
500
JW
D902
Q902
486
C907
JW
C904
JW489
C921
R781
R914
R792
R902
499
JW
911
C
IC902
R793
487
JW
CNP802
G
(Page 19)
• Semiconductor Location
Ref. No. Location
D701 E-7
D751 E-7
D781 E-10
D782 C-8
D783 C-7
D784 E-7
D785 E-7
D786 F-10
D787 F-10
D788 D-7
D789 E-12
D901 B-10
D902 B-11
D903 B-10
D904 B-10
D905 B-10
( ) : AEP, UK model
Ref. No. Location Ref. No. Location Ref. No. Location
D906 B-10
D907 D-9
D908 E-13
D909 D-13
D910 E-13
D911 D-13
D912 E-9
D913 E-11
D914 D-5
D981 E-10
D982 B-12
IC401 C-4
IC402 E-4
IC403 D-6
IC404 C-6
IC601 E-6
IC901 C-10
IC902 D-11
IC903 B-7
(IC904) E-1
Q424 D-5
Q474 D-5
Q680 F-5
Q681 E-5
Q701 F-5
Q702 G-5
Q703 G-4
Q704 G-6
Q705 F-6
Q706 F-7
Q751 G-9
Q752 G-9
Q753 G-8
Q754 G-9
Q755 F-8
Q756 E-9
Q781 E-10
Q782 F-9
Q783 F-9
Q784 D-7
Q785 D-7
Q786 E-6
Q901 B-10
Q902 C-11
Q903 E-10
Q904 E-10
1414
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