Sony STR-DE197 Service Manual ▷ View online
13
STR-DE197
4-2. CIRCUIT BOARDS LOCATION
AC OUTLET board
MAIN board
FUNCTION KEY board
VOLUME board
DISPLAY board
POWER board
H.PHONE board
14
STR-DE197
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
1
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
no mark : FM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER (FM/AM)
L
: VIDEO (AUDIO)
J
: CD (ANALOG)
• Abbreviation
CND : Canadian model.
for printed wiring boards:
• X
: parts extracted from the component side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
•
Abbreviation
CND : Canadian model.
CND : Canadian model.
C
B
These are omitted.
E
Q
B
These are omitted.
C
Q
Q
E
B
C
E
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
STR-DE197
15
15
STR-DE197
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
60
58
59
16
56
57
47
13
5
41 42 43
32
3
1
1
2
4
3
3
10
8
12
11
5
6
2
3
7
LED
DRIVER
Q204
LED
DRIVER
Q206
55
LED
DRIVER
Q205
KEY MATRIX
FL201
VACUUM
FLUORESCENT
DISPLAY
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
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
RY HP
RY A
RY B
RY B
PROTECTOR
RY R1 COIL
RY POWER
STOP
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
SPEAKER
D205
D206
SPEAKER
A
B
X201
4.19MHz
D203
RV201
MASTER VOLUME
BASS
BOOST
A
B
S204-213,
215-236,
238,239
SYSTEM CONTROLLER,
FL DRIVER
IC201
J801 (1/2)
J802 (1/2)
-1
L
-2
R
IN
CD
IC906
LEVEL
SHIFT
IC905
US,CND MODEL
-5
L
-6
R
IN
MD/TAPE
J801 (2/2)
VIDEO 1,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 75Ω
COAXIAL
AM
ANTENNA
10V
L CH
R CH
MUTE
CE
CLOCK
DO
TUNED
STEREO
STEREO
TUNED
MUTE
CE
CL
DO
FM SIGNAL
RDS DATA
RDS INT
VDD3.3V
R-CH
+10V
3.3V
LEVEL
SHIFT
-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.
TN1
FM/AM TUNER PACK
DATA
DI
AEP MODEL
POWER
SECTION
A
LEVEL
SHIFT
Q905,906
US,CND MODEL
• Signal path
: TUNER (FM/AM)
: VIDEO (AUDIO)
: CD (ANALOG)
• R-ch is omitted due to
same as L-ch.
same as L-ch.
• Abbreviation
CND : Canadian model
CND : Canadian model
(Page 16)
STR-DE197
16
16
STR-DE197
4-4. BLOCK DIAGRAM — POWER SECTION —
6
2
3
DRIVE
POWER AMP
Q701-704
BIAS
14 15
-24V
REG
Q904
+5V REG
IC902
3
1
+10V REG
IC903
3
1
6
7
8
2
5
3
RELAY DRIVER
Q783
RELAY DRIVER
Q903
-5V REG
IC907
3
2
+3.3V REG
IC904
3
1
RELAY DRIVER
Q901
+5.6V
REG
Q902
RELAY DRIVER
Q782
RELAY DRIVER
Q781
+B
-B
-24V
+5V
+3.3V
-5V
AEP MODEL
+10V
RY+B
+5.6V
OUT C
V+
RESET
VSA
VSC
RESET/+5.6V REG
IC901
VSB/SESIN
F1
-24V
F2
RY982
F902
F901
D913
RY981
RY781
R-CH
RY782
RY783
RECT
D901-904
RECT
D908-911
RECT
D907
D907
T901
POWER
TRANSFORMER
T902
POWER
TRANSFORMER
D905
D906
CNJ901
AC
OUTLET
SWITCHED 120W/1A MAX
AC 120V 60 Hz (US,CND)
SWITCHED 100W MAX
(AEP)
~
AC IN
-B
+B
VCC
VEE
PRE DRIVER
IC601
PRE
DRIVE
IN 1
+VOUT
-VOUT
CURRENT
DET
Q705,706
PROTECT
SWITCH
Q784-786
R-CH
J803
PHONES
TM801
SPEAKERS
IMPEDANCE
USE 8-16Ω
L
R
A
L
R
B
R-CH
R-CH
ST-L
ST-R
HP RELAY
SPK A RELAY
SPK B RELAY
PROTECTOR SIG
R1 COIL RELAY
POWER RELAY
STOP SIGNAL
R-CH
MAIN
SECTION
A
D786
D787
D789
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to
same as L-ch.
same as L-ch.
• Abbreviation
CND : Canadian model.
CND : Canadian model.
(Page 15)
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