Sony STR-K880 / STR-K900 Service Manual ▷ View online
5
STR-K880/K900
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in
Note:
• All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
• %
: indicates tolerance.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages 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 production
tolerances.
tolerances.
• Signal path.
F
: FM
J
: ANALOG
c
: DIGITAL
I
: VIDEO
• Abbreviation
CND
: Canadian model.
For Printed Wiring Boards.
Note:
•
Note:
•
X
: parts extracted from the component side.
•
a
: Through hole.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
Note:
The components identi-
fied by mark
fied by mark
0
or dot-
ted line with mark
0
are
critical for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés
par une marque
par une marque
0
sont cri-
tiques pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
6
STR-K880/K900
DIGITAL board
MAIN board
POWER board
ADCC board
HEADPHONE board
STANDBY board
SPEAKER board
SPEAKER B board
HDMI board
VIDEO board
DISPLAY board
VIDEO 3 board
CONVERTER board
• Circuit Boards Location
7
7
STR-K880/K900
STR-K880/K900
BLOCK DIAGRAM – MAIN SECTION –
AUDIO IN
AUDIO IN
AUDIO IN
PROCESSOR
INCL
26
88
OUT L
INBL
24
INGL
34
85
OUT SL
86
OUTC
81
OUT SW
DATA
60
CLK
59
59
VOL_CLK
SDA
SCL
60
VOL DATA LATCH
SYSTEM CONTROL
IC1101(1/2)
IC203
VIDEO AMP
IC1601,1602
S/P CONV.
IC807
+5V REG
DVD
IN
COAXIAL
VIDEO 2
IN
J1301
3
5
6
2
J298(1/2)
IC1303
DIGITAL AUDIO
I/F RECEIVER
IC1301
L
DISPLAY
/POWER
SECTION
/POWER
SECTION
DIN2
5
DO
35
DI
36
CLK
38
CE
37
ERROR
34
XSTATE
17
XMODE
48
13
CK OUT
20
XMCK
14
BCK
15
LRCK
16
DATAO
IC1303
X1301
12.288MHz
AUDIO DSP
IC1501
KFSI0
SYSCLK
LRCK
BCK
DOUT
22
16
13
14
15
SDI2
30
HCLK
34
HCS
36
HACN
32
PM
113
XRST
2
23
SDO1
24
SDO2
25
SDO3
BCKI2
29
LRCKI2
28
LRCKI1
15
BCKI1
17
IC1502
SRAM
AUDIO CODEC
IC1452
IC1403
AD CONVERTER
IC1401
SCKI
38
RST
37
ML
36
MC
35
MDI
34
MDO
33
10
VOUT5
BCK
40
LRCK
41
DATA3
47
DATA1
45
26
SDO4
DATA4
31
DATA2
46
14
VOUT1
12
VOUT3
11
VOUT4
ANALOG SOUND
44
ROUTAL
SL
AOUTL
41
INCL
49
52
51
56
SL
C
83
OUTSBL
SBL
INCSL
INCC
INCSW
A
98 97 95 96 99 100
94
1
6
13
89
DO
DI
CLK
CE
ERROR
XSTATE
CKSEL1
DATA0
3
BST
SW4
V1
D595_LAT
20
HCLK
4
HCS
5
HACN
7
PM
92
BST SEL
6
XRST
10
PCM1608/1800_RST
12
PCM1608_ML
13
PCM1608_MC
14
PCM1608_MDI
15
PCM1608_MDO
5
6
29
30
RELAY
DRIVE
DRIVE
Q560
J404 (1/2)
VIDEO 1
IN
J402
SA-CD/CD
VIDEO 2
AUDIO
MD/TAPE
DVD
OPTICAL
IN
IC1351
DIN0
3
DIN1
4
VIDEO 1
IN
OPTICAL
IN
IC1354
22
21
XIN
XOUT
12
9
93
XMODE
CKSEL1
47
GP9
68
HD OUT
35
HD IN
33
2
GP9
18
HD OUT
19
HD IN
MCLK1
MCLK2
X1502
13.9MHz
14
SCK OUT
1
LIN
6
RST
20
BCKO
19
LRCKO
18 SDI1
24
AUDIO
GP8
69
EXLOCK
59
INIL
38
TN1
TUNER PACK
FM
75
Ω
COAXIAL
AM
R-CH
ST-DI
ST-DO
CLK
CE
RDS DATA
FM SIG OUT
RDS INT
FM
AM
R CH
L CH
TUNER +10V
10V
+3.3V
DO
73
RDSSIG
43
SLATCH
74
TUNER-DATA
17
T.SERIAL CLK
16
RDS_DATA
53
RDS_CLK
52
OPTICAL
DIGITAL
D1301
IC401
SDA
SCL
EEPROM
IC1131
IC402
WOOFER AMP
SW RY
70
IN
INFL
32
INDL
28
INEL
30
J403 (1/2)
VIDEO 1
J404
(2/2)
(2/2)
AUDIO OUT
46
ROUTBL
MD/TAPE
J402
(2/2)
(2/2)
OUT
RY560
AUDIO OUT
J309
SUB WOOFER
5
7
14
86
SW1
D595_DATA
88
D595_OE
4
SW3
10
87
SW2
D595_CLK
VIDEO IN
J201
(1/2)
(1/2)
J200
(1/2)
(1/2)
VIDEO 1
VIDEO IN
VIDEO 2
VIDEO IN
DVD
9
V3
VIDEO
J298
(2/2)
(2/2)
VIDEO 3 IN/
PORTABLE AV IN
5
V2
3
DVD
1
M.OUT
MONITOR
+ V
J201(2/2)
VIDEO OUT
15
V.OUT
16
VCC
VIDEO 1
J200(2/2)
VIDEO OUT
IC804
-5V REG
- V
8
VEE
IC1503
SELECTOR
1
6
5
56
2
A
B
BST
S
Y
3
1
IC1405
5
7
IC1404
3
1
IC1404
5
7
16
VOUT7
54 INCSB
IC1406
5
7
J401
SUB WOOFER
CENTER
FRONT
SURROUND
ANTENNA
MULTI CH IN
INDL
12
INDL
17
INDL
13
INDL
10
J301
(1/2)
(1/2)
Y
P
R/
C
R
/R-Y
P
B/
C
B
/B-Y
Y
DVD
IN
VIDEO 2
IN
COMPONENT
VIDEO
P
R/
C
R
/R-Y
P
B/
C
B
/B-Y
CH1 IN2
3
CH2 IN2
9
CH3 IN2
14
CH1 IN3
5
CH2 IN3
11
CH3 IN3
12
SW1
2
SW2
4
CH1 OUT 22
CH2 OUT 20
CH3 OUT 18
Y
P
R/
C
R
/R-Y
P
B/
C
B
/B-Y
MONITOR
OUT
CONPONENT
VIDEO
J301
(2/2)
(2/2)
VIDEO AMP
IC304
(Page 8)
FL_DATA
FL_CLK
B
DISPLAY
/POWER
SECTION
(Page 8)
CN5001
CN5002
CN5003
DVD IN
HDMI
HDMI
VIDEO 2 IN
MONITOR OUT
OEB
42
S1
21
IC5004
INPUT
DET
1
5
7
3
IC5005
INPUT
SELECT
3
1
4
6
IC5006
+5.8V REG
IC5003
+3.3V REG
+3.3V
+8V
2
4
1
3
IC5002
+5V REG
IC5001
HDMI
SELECT
5
4
1
1
VIDEO 3 IN/
PORTABLE AV IN
57
ADCC_DSP_INT
D1501-1504
K880
K900
8,9,
11,12,
14,15
14,15
70,71,
73,74,
76,77
73,74,
76,77
25,26,
28,29,
31,32
28,29,
31,32
• Signal Path
: FM
: ANALOG
: DIGITAL
: VIDEO
• R-CH is omitted due to same as L-CH.
• Refer to original service manual
for IC of no coloring
for IC of no coloring
8
8
STR-K880/K900
STR-K880/K900
BLOCK DIAGRAM – DISPLAY/POWER SECTION –
• Refer to original service manual
for IC of no coloring
for IC of no coloring
• R-CH is omitted due to same as L-CH.
• Signal Path
: FM
IN2
8
12
+V OUT2
POWER AMP
IC701
POWER AMP
IC601
9
NF2
LIMITER
Q701,702
11
-V OUT2
IN2
12
+V OUT2
9
NF2
11
-V OUT2
BOOSTER
Q703
BOOSTER
Q704
CURRENT
DETECT
Q705,706
AF POWER
PROTECT
Q740
LIMITER
Q651,652
BOOSTER
Q653
BOOSTER
Q654
CURRENT
DETECT
Q655,656
IN2
8
12
+V OUT2
POWER AMP
IC501
9
NF2
LIMITER
Q501,502
11
-V OUT2
BOOSTER
Q503
BOOSTER
Q504
CURRENT
DETECT
Q505,506
2
+V OUT1
5
NF1
LIMITER
Q571,572
3
-V OUT1
BOOSTER
Q533
BOOSTER
Q534
CURRENT
DETECT
Q535,536
D721
PROTECT
SWITCH
Q722,723,725
RELAY
DRIVE
Q790
RY791
RELAY
DRIVE
Q710
RY701
D1110
RELAY
DRIVE
Q610
RY601
RY600
D1108
RELAY
DRIVE
Q800
RELAY
DRIVE
Q550
RY501
D1107
D1111
L
R
SR
SL
C
R-CH
L
R
R-CH
R-CH
R-CH
PHONES
TM601
TM602
61
PROTECTOR
62
HP RY
66
FRONT RY
69
REAR RY
68
C/SB RY
67
SP_B_RY
RV102
ENCODER
3
1
VOL_ENC(B)
64
VOL_ENC(A)
65
POWER KEY
56
?/1
S100
77
RSTX
48
STOP
54
SIRCS
72
BRIGEABLE RY
63
FUSE DETECT
REMOTE
CONTROL
RECEIVER
1
IC102
D910-913
AC
IN
T902
RY901
D915
F901
D914
RELAY
DRIVE
Q901
D920-923
23
VCC5
84
VCC3
-7V
REG
3
2
+7V
REG
1
3
AUDIO
+7V
IC801
IC802
POWER RY
58
RELAY
+B
D805-808
82
83
X0
X1
X1101
24MHz
F1
F2
L
SL
SL
C
A
IN1
6
SBL
J791
FLUORESCENT
INDICATOR TUBE
FL101
FL_DATA
FL_CLK
9
FL_LAT
7
DIN
8
CLK
9
STB
14 29
SEG1-16
42 31
GRID1-12
F1
F2
FL DRIVE
IC100
ADCC
38
S108-111,115
FUNCTION
KEY
A/D1
39
FUNCTION
KEY
A/D2
40
S101-107
SYSTEM CONTROL
IC1101(2/2)
AF POWER
PROTECT
Q640
AF POWER
PROTECT
Q540
AF POWER
PROTECT
Q580
IC691
2
1
FRONT A
FRONT B
SURROUND
IC691
5
7
55
HP DETECT
BUFFER
IC101
35
AVCC
+3.3V
REG
3
1
IC1904
AUDIO
-7V
+10V
REG
3
1
TUNER
+10V
IC1902
RY801
T901
Q921
AC DET
1
2
IC1111
D802
R803
+B
-B
-B
SWITCH
Q691,692
RELAY
DRIVE
Q809
-20V REG
Q801
FL101
-20V
POWER AMP
-B
+5V
REG
3
1
IC1031
+5V
+2.5V
REG
5
+2.5V
+3.3V
REG
2
4
IC1901
+3.3V
+5V
REG
3
1
IC1001
AUDIO
+5V
SPEAKERS
IMPEDANCE USE 6-16
Ω
MASTER
VOLUME
VOLUME
RV101
ENCODER
3
1
ENC_B
32
ENC_A
31
INPUT
SELECTOR
8
RESET
5
1
IC2000
AMP
+3.3V
(STBY)
MAIN
SECTION
TM501
K880
CENTER
SB
SURROUND
BACK
(Page 7)
B
MAIN
SECTION
(Page 7)
AUTO CAL MIC
J2000
RY802 RY803
CND
EXCEPT
CND
CND
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