Sony STR-DE997 Service Manual ▷ View online
STR-DE997
17
17
STR-DE997
4-6. BLOCK DIAGRAM — OSD SECTION —
3
25
2
15
2
27
1
26
11
10
10
8
9
9
16
23
22
24
22
24
21
I LINE
MEMORY
TP3501
NTSC/
PAL
SIGNAL
GEN
SERIAL
INPUT
CONTROL
VIDEO
SIGNAL
GEN
OUTPUT
CONTROL
DISPLAY
MEMORY
CONTROL
CG ROM
CHARACTER
VRAM
ANALOG
SW
COLOR
KILLER
KILLER
DYNAMIC
COMB
FILTER
DAC
7
14
8
4
1
5
4
5
8
DAC
ADC
Q3641
PLL
4FSC
OSC
DOT
CLK
GEN
(TEST)
1
2
4
V SYNC
H SYNC
TEST
TEST
DATA
COLOR
BURST
BURST
VIDEO
PHASE
SYNC
PHASE
SYNC
C IN
Y IN
V IN
SIN
SCLK
CS
SCLK
CS
EXS
XD
EXD
AD
IN
IN
15
4
9 10 11
MONITOR SELECTOR
IC3651
VIDEO AMP
IC3641 (1/2)
V OUT
C B A
Y OUT
OSD-DIN
OSD-CLK
OSD-CS
C OUT
SYSTEM
CLOCK
AYO
ACO
37
FIN
ON SCREEN DISPLAY CONTROL
IC3501
Y/C SEPARATION
IC3601
X3501
14.31MHz
X3701
3.5795MHz
KEY/DISPLAY
SECTION
F
MONITOR-V/OUT
MONITOR-C/OUT
MONITOR-Y/OUT
VIDEO
SECTION
H
MONITOR-V/IN
MONITOR-Y/IN
MONITOR-C/IN
VIDEO
SECTION
G
CT3501
15
• Signal path
: VIDEO
15
75Ω
DRIVER
6dB AMP
6dB AMP
VEE
-5V-3
VCC
VIDEO AMP
IC3321
MUTE1
MUTE2
VIN1
VIN2
VIN3
+5V-3
VOUT1
VOUT2
13
75Ω
DRIVER
6dB AMP
VOUT3
11
75Ω
DRIVER
Y PROCESS
Q3621,3622
C PROCESS
Q3631,3632
13
12
2
1
5
3
14
1
4
9 10 11
13
12
3
1
8
4
5
32
37
36
36
43
34
39
38
30
26
6
7
18
5
RY3304
J3104 (1/2)
SYSTEM
CONTROL
IC1101 (
4/5)
COMP SEL1
COMP SEL2
V MUTE
OSD ON/OFF
UPCON CLK
UPCON DATA
RY3303
TV/SAT
IN
COMPONENT
VIDEO
-1
-2
-3
-4
-5
-6
DVD
IN
MONITOR
OUT
Y
J3104 (2/2)
-7
-9
-8
P
B
/C
B
/B-Y
P
R
/C
R
/R-Y
Y
Y
P
B
/C
B
/B-Y
P
B
/C
B
/B-Y
P
R
/C
R
/R-Y
P
R
/C
R
/R-Y
COMPONENT
VIDEO
111
108
64
40
66
1
4
7
3
10
1
2
IC3253
VIDEO AMP
IC3741
VIDEO AMP
IC3641 (2/2)
V SYNC
H SYNC
CVBS/Y IN
C IN
SDA
SCL
SECAMREF
XNTSC
V2 OUT
U2 OUT
Y OUT
CLOCK GENERATOR
IC3701
H/V
SEPA
Q3701
SYNC DET
Q3731
SYNC
SEPARATION
1
2
IC3731
SYNC
SEPARATION
RELAY
CONTROL
Q3302
OSD SWITCH
Q3501-3503
RY3302
RY3301
RELAYCONTROL
Q3301,3304
SYNC DET
Q3252
VIDEO AMP
IC3671
UP CONVERT SELECTOR
IC3751
C B
A
(Page 15)
(Page 16)
(Page 15)
STR-DE997
18
18
STR-DE997
4-7. BLOCK DIAGRAM — POWER SECTION —
8
12
11
DRIVE
POWER AMP
Q571-574
CURRENT
DETECT
Q575,576
RY240
RY2881
RY600
RY2880
PRE DRIVER
IC500
IN 2
+VOUT2
-VOUT2
SPEAKERS
IMPEDANCE
USE 8-16Ω
R
L
FRONT B
L
SURROUND
SURROUND
BACK
CENTER
R
R-CH
R-CH
R-CH
FL-CH
FR-CH
SL-CH
C-CH
R-CH
SBR
R-CH
SR-CH
R-CH
TUNER/
AUDIO
SECTION
D
RY911
RY802,803
D251
F1
F2
-32V
+3.3V
(STBY)
+2.6V
+5V-1
-7V
+7V
TU+10V
-48V
RECT
D921-924
D925
D927
Q921
D926
D1001
+B SWITCH
Q912,913
D1110
D1111
D1107
D1108
OVERLOAD
DETECT
D575,Q577
6
23
2
3
DRIVE
POWER AMP
Q721-724
CURRENT
DETECT
Q725,726
-48V REG
Q235
+48V REG
Q220,225
RELAY
DRIVER
Q911
PRE DRIVER
IC700
PRE DRIVER
IC400
IN1
+VOUT1
-VOUT1
OVERLOAD
DETECT
D725,Q727
8
12
11
DRIVE
POWER AMP
Q671-674
CURRENT
DETECT
Q675,676
PRE DRIVER
IC600
IN 2
+VOUT2
-VOUT2
OVERLOAD
DETECT
D675,Q677
RELAY
DRIVER
Q240
RELAY
DRIVER
Q2880
RELAY
DRIVER
Q600
RY400
RELAY
DRIVER
Q400
RY700
R
L
R-CH
-32V
D290
D291
RELAY
DRIVER
Q700
21
18
42
PROTECTOR
D201-203
Q200-202,255,256
24
25
60
20
+5V
(STBY)
OVERLOAD
DETECT AMP
7
2
IC210
+48V
-B
+2.6V/+3.3V
REG
4
5
+3.3V
2
IC1901
+5V-2
+5V
REG
1
3
IC1001
+3.3V
REG
1
3
IC1021
+5V
REG
1
3
IC1011
+10V
REG
1
3
IC1902
-15V
+15V
+7V
REG
3
1
IC260
-7V
REG
2
3
IC265
+5V
REG
1
3
IC1031
PROTECTOR
Q210
+B
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
-48V +48V
R-CH
R-CH
R-CH
RECT
D801,802
RECT
D865
D865
RECT
D851-854
T901
POWER
TRANSFORMER
TM2880
TM602(1/2)
TM601
TM602(2/2)
R
FRONT A
L
R-CH
J2501
PHONES
HP-RY
FRONT B RY
FRONT A RY
REAR-RY
CENTER RY
HP CTRL
HP-RY
HP DETECT
FRONT B RY
FRONT A RY
REAR-RY
CENTER RY
HP_RY
SP_A_RY
REAR_RY
PROTECTOR
HP_CTRL
PW-RY
5
SUB-T
19
SP_B_RY
45
BRIDGEABLE RY
VOLT_DETECT_STOP
CENTER_RY
SYSTEM
CONTROL
IC1101 (
5/5)
PRE
DRIVE
PRE
DRIVE
SBL-CH
8
12
11
DRIVE
POWER AMP
Q471-474
CURRENT
DETECT
Q475,476
IN2
+VOUT2
-VOUT2
OVERLOAD
DETECT
D475,Q477
-48V +48V
-48V +48V
-48V +48V
PRE
DRIVE
PRE
DRIVE
RELAY
DRIVER
Q2881
RELAY
DRIVER
Q809
R861
R862
R851
RELAY
SWITCH
-32V REG
Q250
F902
T902
POWER
TRANSFORMER
~
AC IN
J911
AC
OUTLET
F901
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to
same as L-ch.
same as L-ch.
(Page 13)
STR-DE997
19
19
STR-DE997
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.
•
5
: 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)
I
: VIDEO
J
: CD (ANALOG)
c
: CD (DIGITAL)
• 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.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C
Q
Q
E
B
C
E
• Abbreviation
CND : Canadian model.
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.
• Waveforms (DIGITAL Board)
3.8Vp-p
1
IC1301
qd
(CKOUT)
1V/DIV 50nsec/DIV
12.288MHz
3.2Vp-p
2
IC1301
qf
(BCK)
1V/DIV 0.2
µ
sec/DIV
3.07MHz
3.5Vp-p
3
IC1301
wa
(XOUT)
1V/DIV 50nsec/DIV
12.288MHz
2.2Vp-p
4
IC1501
9
(MCLK1)
1V/DIV 50nsec/DIV
13.9MHz
3.5Vp-p
5
IC1501
qs
(MCLK2)
1V/DIV 50nsec/DIV
13.9MHz
3.8Vp-p
6
IC1501
qf
(SCKOUT)
1V/DIV 50nsec/DIV
12.288MHz
2.1Vp-p
7
IC1101
tj
(X1)
1V/DIV 50nsec/DIV
16.5MHz
• Waveforms (VIDEO Board)
1.8Vp-p
1
IC3501
8
(EXS)
1V/DIV 20nsec/DIV
14.31MHz
2.6Vp-p
2
IC3701
wh
(XNTSC)
1V/DIV 20nsec/DIV
3.5795MHz
• Waveform (DISPLAY Board)
2.6Vp-p
1
IC100
3
(XOUT)
1V/DIV 20nsec/DIV
8MHz
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