Sony STR-DE485 / STR-DE485E Service Manual ▷ View online
STR-DE485/DE485E
17
17
4-4. BLOCK DIAGRAM — DIGITAL SECTION —
30
+5V-2
AVDD
AMP
IC1502
DSI1
SDTI1
LOUT1
LOUT 3
ROUT 3
LOUT 2
SD01
SDTO
29
9
18
GP8
AUDIO 24
69
KFSI0
CKOUT 13
22
BCKI2
BCK 14
29
LRCKI2
LRCK 15
28
DSI2
CS
WE
DATAO
SCKOUT
MCLKI 39
14
23
6
SDTI2
SD02 24
7
SDTI3
SD03 25
8
27
GP10 67
LRCK
LRCKO 19
5
BCK
BCKO 20
4
17
X1201
13.5MHz
X1101
12.288MHz
MCLK1 9
MCLK2 12
CSO 44
WEO 45
68 56
108,107,105 -102,99,
98,79 - 77,75 - 72
24 - 27,42 - 44,
1 - 5,18 - 21
29 - 32,35 - 38,
16-13,10 - 7
112,110,109,99 - 92,
85-82,66 - 64
6
17
2 113
36
35 33 34
32
3
2
1
6 7
4
18 19 20
5
EXLOCK
ERROR
21
22
21
99
1
95
96
97
98
94
100
38
37
36
35
33
47
17
3
43
42
41
8
9
10
12
13
DAC
DAC
DAC
DAC
23
24
25
AUDIO
I/F
(2/2)
INPUT
DATA
DEMODULATOR
Pa,Pb DETECTION
LOCK
DETECTION
MICROPROCESSOR
I/F
C bit DETECTION
34
59
16
30
DVD/LD
IN
DIGITAL
COAXIAL
VIDEO 2
IN
OPTICAL
OUT
IC1105
IC1102
DIR
IC1101
J1101
2
3
WAVE
SHAPER
6
7
2
1
+5V-1
D5V
+2.5V
VDDI
+3.3V
VDDE
+3.3V
VDD
NC
L-IN
R-IN
FC MUTE
R-CH
L IN-
L IN+
LPF
AUDIO
I/F
(1/2)
CODEC
IC1501
IC1501
DSP
IC1201
ROM
IC1202
DLIN
DCIN
DSWIN
DSLIN
PD
S.MUTE
CDT1
CCLK
CS
PD
SMUTE
CDT1
SCL
CS
CODEC
GP9
DATAO
HACN
BST
HCS
XRST
HDIN
PM
HDOUT
HCLK
GP9
HACN
BST
HCS
XRST
HDIN
PM
HDOUT
HCLK
DSP
CLK
CE
DI
DO
CKSEL1
XSTATE
CLK
CE
DI
DO
BPSYNC
CKSEL1
XSTATE
DIR
5
4
XOUT
XIN
F.MUTE
Q1601
INV.
ERROR
Q1602
D1101
D0-15
A0-15
D0-15
A0-15
SYSTEM
CONTROL
IC1601 (2/4)
TUNER/
AUDIO
SECTION
3
TUNER/
AUDIO
SECTION
2
TUNER/
AUDIO
SECTION
1
ADC
• Signal path
: TUNER (FM/AM)
: CD (ANALOG)
: CD (DIGITAL)
• R-ch is omitted due to
same as L-ch.
same as L-ch.
(Page 16)
(Page 16)
(Page 16)
STR-DE485/DE485E
18
18
4-5. BLOCK DIAGRAM — VIDEO/DISPLAY SECTION —
13
1
15
5
3
4
6
10
14
88
83
61
7
14 - 29
42 - 31
82
34
33
5
6
87
89
90
2
16
8
62
8
63
29
32
31
30
26
60
59
54
38
9
1
2
3
SW NETWORK S100-109
39
SW NETWORK S110-119
40
SW NETWORK S120-128
41
SW NETWORK S130-137,
S143,144
RV102
MASTER
VOLUME
VOLUME
LED
DRIVERS
Q100-104
56
28
27
51
49
77
2
3
1
3
VIDEO
IN
VIDEO 1
VIDEO
OUT
MONITOR
VIDEO
OUT
VIDEO 1
VIDEO
IN
VIDEO 2
VIDEO
IN
DVD/LD
+3.3V
(STBY)
RESET
IC1602
M.OUT
V1.OUT
VCC
V1
V2
DVD
X1
X0
SW3
SW2
SW4
SW1
SDA
EEPROM
VIDEO SW
SCL
POWER KEY
SP SWITCH/FLASH1
FLASH2
MD2
MD0
RSTX
VEE
IC807
IC804
+5V
REG
-5V
REG
+V
-V
J201 (2/2)
J200 (2/2)
FL101
FLUORESCENT
INDICATOR
TUBE
F1
F2
DIN
CLK
STB
SW1
SW2
SW3
VIDEO SELECTOR
IC103
SW3
SW2
SW4
SW1
SW5
D203,
D204
D204
J201 (1/2)
J200 (1/2)
SDA
SCL
EEPROM
IC1604
X1601
20MHz
DIN
FL DRV/
LED DRV
BUFFER
IC101
CLK
FL_STB
BLUE LED
AFD
2CH
MODE
DSC LED
SIRCS
VOL(A)
VOL(B)
VOL(B)
A/D0
A/D1
A/D2
A/D3
5
4
2
2
1
10
9
6
3
8
1
3
FL DISPLAY
DRIVER
IC100
SEG1-16 GRID1-16
Q109
Q111
Q110
LED DRIVER
Q108
LED DRIVER
Q107
LED
MATRIX
D110-114
D100,
D102-104
D102-104
1
REMOTE
CONTROL
RECEIVER
IC102
OUT
SIRCS
+5V-1
SYSTEM
CONTROL
IC1601 (3/4)
CNS3
FLASH1
FLASH2
MD2
MD0
RESET
RESET
1
2
7
6
6
5
FLASH
PROGRAMMING
S145
AFD-LED
MCH-LED
MODE-LED
DSC-LED
2CH-LED
1
2
I
/ I
OR
• Signal path
: VIDEO
STR-DE485/DE485E
19
19
4-6. BLOCK DIAGRAM — POWER SECTION —
8
12
11
DRIVE
POWER AMP
Q701-704
CURRENT
DETECT
Q705,706
RY791
RY701
RY601
PRE DRIVER
IC701
IN 2
+VOUT2
-VOUT2
SPEAKERS
IMPEDANCE
USE 8-16
Ω
R
L
FRONT
L
SURROUND
CENTER
R
R-CH
R-CH
R-CH
FL-CH
FR-CH
SL-CH
C-CH
R-CH
SR-CH
R-CH
TUNER/
AUDIO
SECTION
4
RY901
D804
F1
F2
-30V
+3.3V
(STBY)
+2.5V
+5V-1
-7V
+7V
TU+10V
TU+3.3V
-30V
F901
RECT
D910-913
T902
POWER
TRANSFORMER
D914
Q921
D915
JW905
D731
D734
D733
~
AC IN
OVERLOAD
DETECT
D740,Q740
1
67
6
5
DRIVE
POWER AMP
Q501-504
CURRENT
DETECT
Q505,506
-30V REG
Q801
RELAY
DRIVER
Q901
PRE DRIVER
IC501
IN+
+VOUT
-VOUT
OVERLOAD
DETECT
D540,Q540
DOUBLER
COMMUTATION
8
12
11
DRIVE
POWER AMP
Q651-654
CURRENT
DETECT
Q655,656
PRE DRIVER
IC702
IN 2
+VOUT2
-VOUT2
OVERLOAD
DETECT
D640,Q640
RELAY
DRIVER
Q790
RELAY
DRIVER
Q710
RELAY
DRIVER
Q610
RY501
RELAY
DRIVER
Q510
70
72
68
PROTECTOR
D721,722
Q722,723,725
25
66
48
71
OVERLOAD
DETECT AMP
7
2
IC601
Q692
Q691
+B
-B
-BB
+3.3V
REG
1
3
IC1905
BACK-UP
SWITCH
4
5
+3.3V
2
IC1901
+5V-2
+5V
REG
1
3
IC1503
+10V
REG
1
3
IC1902
-V
+V
+7V
REG
1
3
IC801
-7V
REG
2
3
IC802
+5V
REG
1
3
IC1903
+3.3V
REG
1
3
IC1904
R-CH
R-CH
R-CH
-BB +B
-BB +B
-BB +B
R-CH
R-CH
R-CH
RECT
D802
D802
RECT
D820-822
RECT
D902-905
T901
POWER
TRANSFORMER
D898,899
TM601
TM602
J791
PHONES
S901
VOLTAGE
SELECTOR
220V
240V
120V
HP-RY
FRONT-RY
REAR-RY
CENTER-RY
HP DETECT
HP-RY
HP DETECT
FRONT-RY
REAR-RY
CENTER-RY
HEADPHONE
RELAY
PREOUT/FRONT
RELAY
REAR RELAY
PROTECTOR
HP DETECT
POWER RELAY
STOP
CENTER RELAY
E M0DEL
AEP,UK M0DEL
EXCEPT
E
M0DEL
E
M0DEL
SYSTEM
CONTROL
IC1601 (4/4)
PRE
DRIVE
PRE
DRIVE
PRE
DRIVE
-1
-2
-3
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to
same as L-ch.
same as L-ch.
(Page 16)
STR-DE485/DE485E
20
20
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 µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
• 5 : fusible resistor.
• C : panel designation.
• A : B+ Line.
• B : B– Line.
• Voltage and waveforms are dc with respect to ground
• 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)
g : VIDEO
J
J
: CD (ANALOG)
c
: CD (DIGITAL)
• Abbreviation
CND : Canadian model.
AR
AR
: Argentine model.
AUS
: Australian model.
CH
: Chinese model.
MX
: Mexican model.
SP
: Singapore model.
TW
: Taiwan model.
for printed wiring boards:
• X : parts extracted from the component side.
•
• 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
Note:
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
• Waveform (DIGITAL Board)
3.4Vp-p
1
IC1101
qd
(CKOUT)
1V/DIV 50nsec/DIV
12.288MHz
3.4Vp-p
2
IC1101
qf
(BCK)
1V/DIV 0.2µsec/DIV
3.07MHz
3.6Vp-p
3
IC1101
wa
(XOUT)
1V/DIV 50nsec/DIV
12.288MHz
5Vp-p
4
IC1501
el
(MCLKI)
1V/DIV 50nsec/DIV
12.288MHz
3.6Vp-p
5
IC1201
qs
(MCLK2)
1V/DIV 50nsec/DIV
13.5MHz
4Vp-p
6
IC1201
qf
(SCKOUT)
1V/DIV 50nsec/DIV
12.288MHz
3Vp-p
7
IC1601
id
(X1)
1V/DIV 50nsec/DIV
20MHz
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