Sony STR-K885 Service Manual ▷ View online
13
13
STR-K885
STR-K885
• Circuit Boards Location
SECTION 4
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 and waveforms are dc with respect to ground un-
der 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.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
J
: ANALOG
c
: DIGITAL
I
: VIDEO
• Abbreviation
AR
: Argentine model
AUS
: Australian model
E51
: Chilean and Peruvian models
SP
: Singapore model
SP6
: Singapore and Malaysia models
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.
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.)
Note: The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
• Waveforms
– DIGITAL Board –
1
IC1501
9
(MCLK1)
1 V/DIV, 40 ns/DIV
72 ns
3.2 Vp-p
2
IC1101
id
(X1)
1 V/DIV, 20 ns/DIV
41.6
n
s
4 Vp-p
3
IC1301
ws
(XIN)
1 V/DIV, 40 ns/DIV
81 ns
4.1 Vp-p
DIGITAL board
MAIN board
POWER KEY board
DCAC board
HEADPHONE board
STANDBY board
DCDC board
(SP, SP6, AUS)
HDMI SW board
VIDEO board
AC SELECT board
(E51)
DISPLAY board
VIDEO 3 board
Ver. 1.1
14
14
STR-K885
STR-K885
4-1. BLOCK DIAGRAM – MAIN SECTION –
AUDIO IN
AUDIO IN
PROCESSOR
INFL
32
88
OUT L
INGL
34
85
OUT SL
86
OUTC
81
OUTSW
DATA
60
CLK
59
59
VO ICL_CL
SDA
SCL
60
VO ICL_DA
SYSTEM CONTROLLER
IC1101(1/2)
DVD
IN
VIDEO 2/
BD 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
SW
INCSL
INCC
INCSW
A
98 97 95 96 99 100
94
1
DO
DI
CLK
CE
ERROR
XSTATE
CKSEL1
DATA0
3
BST
20
HCLK
4
HCS
5
HACN
7
PM
92
BST_SEL
6
XRST
10
PCM1609/1803_RST
12
PCM1609_ML
13
PCM1609_MC
14
PCM1609_MDI
15
PCM1609_MDO
5
6
29
30
J405 (1/2)
SA-CD/CD/CD-R
TV
IN
IN
AUDIO
SAT
DVD
OPTICAL
IN
IC1351
DIN0
3
DIN1
4
SAT
IN
OPTICAL
IN
IC1354
22
21
XIN
XOUT
12
9
93
XMODE
CKSEL1
47
GP9
68
HD OUT
35
HD IN
33
8
GP12
2
GP9
18
HD OUT
19
HD IN
GP12
37
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
L
C LINK_TX
C LINK_RX
DET
DI
DO/SD/ST
CLK
CE
FM
AM
R CH
L CH
TUNER +10V
10V
DMPORT+5V
SD
DO/SD/ST
73
SLATCH
74
TUNER SD
43
TUNER_DATA
47
TUNER_CLK
46
FLASH1/C LINK_TX
28
FLASH2/C LINK_RX
27
C LINK_DET
26
OPTICAL
DIGITAL
COAXIAL
D1301
IC401
SDA
SCL
EEPROM
IC1131
INCL
26
INHL
36
INEL
30
J403 (1/2)
INDL
28
J402(1/2)
AUDIO IN
VIDEO 1
INDL
28
VIDEO 1
J402
(2/2)
(2/2)
AUDIO OUT
46
ROUTBL
SA-CD/CD/CD-R
J405
(2/2)
(2/2)
OUT
86
HDMI_S1
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
ANTENNA
(Page 15)
87
HDMI_OED
CN5001
CN5002
CN5003
DVD IN
HDMI
HDMI
VIDEO 2 / BD IN
OUT
OEB
42
2,3,5,
6,8,9,
6,8,9,
11,12,
14,15,
14,15,
80
62-64,
67,68,
70,71,
73,74,
67,68,
70,71,
73,74,
76,77
25,26,
28,29,
31,32,
34,35,
28,29,
31,32,
34,35,
38-40
S1
21
IC5004
INPUT
DET
1
5
7
3
IC5005
INPUT
SELECT
88
HDMI_PRE
3
1
4
6
IC5002
+5V REG
IC5001
HDMI
SELECT
4
5
HDMI
+5.8V
+5.8V
1
J1311
DMPORT
SP,SP6,AUS
VIDEO 3 IN/
PORTABLE AV IN
57
ADCC_INT
D1501-1504
IC203
VIDEO AMP
13 V1
14
SW1
4
SW3
6
SW4
2
SW5
10
24
75
25
SW2
V_SW1
V_SW3
76
V_SW4
V_SW2
90
91
COMP_S2
COMP_S1
VIDEO IN
J201
(1/2)
(1/2)
VIDEO 1
3
SAT
5
DVD
1
M.OUT
MONITOR
VIDEO 1
J201(2/2)
VIDEO OUT
15
V1OUT
J200(2/2)
VIDEO OUT
J301
COMPONENT
VIDEO
CH1 IN2
3
CH2 IN2
9
CH3 IN2
14
CH1 IN3
5
CH2 IN3
11
CH3 IN3
12
SW1
2
SW2
4
P.SAVE
21
CH1 OUT 22
CH2 OUT 20
CH3 OUT 18
Y
P
R
/C
R
P
B
/C
B
MONITOR
OUT
CONPONENT
VIDEO
J302
VIDEO AMP
IC304
VIDEO IN
VIDEO IN
J200(1/2)
SAT
SAT IN
DVD
DVD IN
78
COMP_MUTE
IC3002
3
1
D204
D203
Y
P
R
/C
R
P
B
/C
B
CH1 IN1
1
CH2 IN1
7
CH3 IN1
16
VIDEO 1 IN
Y
P
R
/C
R
P
B
/C
B
Y
P
R
/C
R
P
B
/C
B
VIDEO
J298(2/2)
VIDEO 3 IN/
PORTABLE AV IN
9
V3
• Signal Path
: FM
: ANALOG
: DIGITAL
: VIDEO
• R-CH is omitted due to same as L-CH.
Ver. 1.1
15
15
STR-K885
STR-K885
4-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –
• 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
VACS
CONTROL
D841
D1001
PROTECT
SWITCH
Q722,723,725
Q793,795
RELAY
DRIVE
Q790
RY791
RELAY
DRIVE
Q710
RY701
D1111
RY601
D1110
D1109
EXCEPT
AUS
AUS
D1108
RELAY
DRIVE
Q612
RY610
D1107
RELAY
DRIVE
Q610
L
R
R
L
R-CH
R-CH
R-CH
R-CH
SR-CH
SR-CH
R-CH
SR-CH
SR-CH
R-CH
PHONES
TB001
61
PROTECTOR
62
HP_RY
66
FRONT_A_RY/DG51_FB
67
FRONT_B_RY/DG51_FA
70
SW_RY
69
C/REAR/SB_RY
45
VAX CTRL
RV102
ENCODER
3
2
VOL_ENCODER(B)
64
VOL_ENCODER(A)
65
POWER_KEY
56
?/1
S100
77
RSTX
48
STOP
63
FUSE_DETECT
D910-913
RY901
D915
D914
RELAY
DRIVE
Q901
D920-923
23
VCC5
84
VCC3
-7V
REG
3
2
+7V
REG
1
3
AUDIO
+7V
IC801
+5V
REG
2
1
VIDEO
+5V
IC807
IC802
POWER_RY 58
D4001
SP,SP6,AUS
F4001
F4002
RELAY
+B
-5V
REG
2
1
VIDEO
-5V
IC804
D805-808
F1
F2
L
SW
SL
SL
C
A
IN1
6
SB
J790
FLUORESCENT
INDICATOR TUBE
FL101
9
FL_LAT
7 DIN
8 CLK
9 STB
16
FL_CLK
17
FL_DATA
14
29
31
31
SEG1-17
42
32
GRID1-11
F1
F2
FL DRIVE
IC100
ADCC
38
S109-112,115
FUNCTION
KEY
A/D1
39
FUNCTION
KEY
A/D2
40
S101-108
SYSTEM CONTROLLER
IC1101(2/2)
AF POWER
PROTECT
Q640
AF POWER
PROTECT
Q540
AF POWER
PROTECT
Q580
FRONT
SURROUND
55
HP_DETECT
BUFFER
IC101
82
83
X0
X1
X1101
24MHz
35
AVCC
36
AVRH
+3.3V
REG
3
1
IC1904
AUDIO
-7V
+10V
REG
3
1
TUNER
+10V
IC1902
T901
Q921
AC DET
1
2
IC1111
D802
R803
+B
-B
-B
SWITCH
Q691,692
-20V REG
Q801
FL101
-20V
POWER AMP
-B
+5V
REG
3
1
IC1031
PROTECT
DET
2
7
IC691
+5V
+2.5V
REG
5
+2.5V
+3.3V
REG
2
4
IC1903
+5.8V
REG
4
1
2
IC5006
HDMI
+5.8V
+5.8V
+3.3V
+5V
REG
3
1
IC1001
AUDIO
+5V
+7V
REG
2
1
IC4001
+5V
REG
4
2
IC1906
DMPORT
+5V
+3.3V
REG
3
1
IC5003
HDMI
+3.3V
+3.3V
89
HDMI_CTRL
SPEAKERS
IMPEDANCE USE 6-16
Ω
MASTER
VOLUME
VOLUME
RV101
ENCODER
3
2
ENC_B
32
ENC_A
31
INPUT
SELECTOR
8
RESET
5
1
IC2000
AMP
+3.3V
(STBY)
MAIN
SECTION
CENTER
SURROUND
BACK
(Page 14)
RELAY
DRIVE
Q560
RY560
TM603
J2000
AUTO CAL MIC
54 SIRCS
REMOTE
CONTROL
RECEIVER
2
IC103
AUDIO OUT
J309
SUB WOOFER
AC
IN
T902
F901
VOLTAGE
SELECT
S901
E51
EXCEPT E51
Ver. 1.1
16
16
STR-K885
STR-K885
4-3. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE A) –
:Uses unleaded solder.
• See page 13 for Circuit Boards Location.
C1118
C1119
C1502
C1315
C1509
C1122
C1123
C1129
C1511
R1106
R1107
R1108
C1131
IC1101
C1132
R1301
C1137
R1303
R1110
R1304
C1521
R1111
R1305
C1522
R1112
R1306
R1307
R1114
R1308
R1309
IC1301
R1117
R1118
C1911
IC1111
R1501
C1142
R1502
R1310
R1504
R1311
R1505
R1312
R1506
R1313
R1507
R1120
R1508
R1121
R1509
IC1501
R1122
IC1502
R1123
IC1503
R1124
R1318
R1096
R1125
R1319
R1126
R1127
R1128
R1510
R1129
R1511
R1512
R1513
R1514
R1321
R1515
R1325
R1134
R1135
IC1131
R1523
R1524
R1140
R1143
R1144
C1362
C1557
R1150
R1151
R1152
R1153
R1154
R1156
C1567
R1157
C1568
C1569
R1541
FB1452
FB1453
R1160
R1161
R1356
R1357
R1164
R1359
R1358
R1360
R1555
R1556
R1557
R1940
R1175
R1179
R1180
R1180
R1181
R1182
R1182
R1185
R1188
R1570
R1189
R1571
R1572
R1573
R1574
R1191
R1192
R1194
JR1511
RB1500
RB1501
RB1502
RB1503
RB1504
RB1506
RB1507
RB1508
X1101
X1301
C1405
C1408
J1311
D1001
X1502
C1604
C1411
C1605
C1414
C1415
R1201
C1420
R1010
R1011
FB1305
C1422
R1012
R1013
R1014
FB1308
R1015
R1401
FB1503
FB1310
C1620
R1407
IC1401
C1432
IC1403
IC1404
IC1405
IC1406
R1410
R1411
R1414
R1948
R1947
R1416
C1441
R1035
R1421
R1424
R1425
R1426
C1067
C1451
R1041R1042
R1049
R1434
R1435
R1436
C1460
R1050
C1461
C1462
R1095
R1094
R1635
R1636
FB1350
R1444
R1445
R1446
R1253
C1471
R1061
C1472
R1062
C1474
C1475
R1065
R1642
R1066R1067
R1068
R1454
R1455
R1072
IC1452
C1483
R1073
R1076
C1487
R1077
R1463
R1464
R1466
R1469
JR1005
R1083
R1084
JR1008
R1088
R1470
R1473
R1476
R1483
R1484
JR1020
R1486
R1490
R1491
R1492
R1493
R1494
R1495
C1102
C1107
C1301
C1302
C1303
C1304
C1409
C1401
C1404
C1002
IC1303
R1943
C1361
R1354
R1351
JL002
JL005
JL008
FB1403
FB1405
C1920
C1068
D1301
D1302
D1109
FB1504
TP1000
FB1505
C1921
JL007
C1913
C1031
JL014
JL009
JL010
JL011
C1639
SP,SP6,AUS
SP,SP6,AUS
SP,SP6,AUS
1-872-321-
12
(12)
1
3
5
4
DIGITAL BOARD
(SIDE A)
DMPORT
J1311
1
2
A
B
C
D
E
F
3
4
5
6
7
8
9
• Semiconductor
Location
Ref. No.
Location
D1001
C-6
D1109
C-7
D1301
C-3
D1302
C-3
IC1101
D-7
IC1111
C-7
IC1131
E-6
IC1301
C-3
IC1303
C-3
IC1401
E-3
IC1403
E-4
IC1404
E-4
IC1405
E-5
IC1406
E-6
IC1452
D-3
IC1501
D-4
IC1502
C-4
IC1503
D-5
Ver. 1.1
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