Sony HT-DDW995 / STR-K995 Service Manual ▷ View online
13
STR-K995
SECTION 3
ELECTRICAL ADJUSTMENT
[FM Auto Stop Check]
Procedure:
1. Turn the power on.
2. Input the following signal from Signal Generator to FM
2. Input the following signal from Signal Generator to FM
antenna input directly.
* Carrier Freq : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation
: 75 kHz
Modulation : 1 kHz
ANT input : 35 dBu (EMF)
ANT input : 35 dBu (EMF)
Note:
Please use 75 ohm “coaxial cable” to connect SG and the set. You
cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
3. Set to FM tuner function and scan the input FM signal with
automatic scanning.
4. Confirm that input Frequency of A, B and C are detected and
automatic scanning stops.
The stop of automatic scanning means “The station signal is received
in good condition.”
in good condition.”
TUNER SECTION
generator
OUT (75
Ω
)
SET
14
STR-K995
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
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.
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.)
• Circuit Boards Location
C
B
These are omitted.
E
Q
B
These are omitted.
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.
DIGITAL board
MAIN board
POWER KEY board
DCAC board
HEADPHONE board
STANDBY board
DCDC board
HDMI RE board
VIDEO board
DISPLAY board
VIDEO 3 board
15
15
STR-K995
STR-K995
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
10
VOL_CL
EEPROM_DATA
EEPROM_CLK
11
VOL_DA
SYSTEM CONTROLLER
IC1907(1/3)
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
DOUT
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
SCK
LRCK
BCK
DOUT
22
15
10
11
12
SDI2
30
HCLK
34
HCS
36
HACN
32
PM
113
XRST
2
23
SDO1
24
SDO2
25
SDO3
26
SDO4
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
DATA2
46
9
VOUT6
12
VOUT3
11
VOUT4
ANALOG SOUND
44
ROUTAL
SL
AOUTL
41
INCL
49
50
51
56
SL
C
SW
INCSL
INCC
INCSW
A
B
48 47
42 41
45 46 49 50
39
63
DIR_DO
DIR_DI
DIR_CLK
DIR_CE
DIR_ERROR
DIR_XSTATE
DIR_CKSEL1
DIR_DATA0
ERROR_SEL
66
BST
101
HCLK
67
HCS
68
HACN
73
PM
64
BST_SEL
69
DSP_RESET
37
PCM1609/_RESET
27
PCM1609_ML
5
PCM1609_MC
4
PCM1609_MDI
75
PCM1609_MDO
5
6
97
98
J405 (1/2)
SA-CD/CD/CD-R
TV
IN
IN
AUDIO
SAT
DVD
OPTICAL
IN
IC1351
DIN0
3
DIN1
4
6
5
2 14
7
SAT
IN
OPTICAL
IN
IC1354
IC1302
22
21
XIN
XOUT
12
9
38
DIR_XMODE
CKSEL1
47
GP9
68
HD OUT
35
HD IN
33
74
GP12
65
83
GP9
99
HD OUT
100
HD IN
GP12
37
MCLK1
MCLK2
X1502
13.9MHz
14
SCK OUT
1
LIN
7
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
HDMI_MUTE
DET
DI
DO
CLK
CE
FM
AM
R CH
L CH
TUNER +10V
10V
DMPORT+5V,VBUS+5V
SD
TUN_DO
26
TUN_LAP
27
TUNER SD
117
TUNER_DATA
80
TUNER_CLK
79
FLASH1/C LINK_TX
103
FLASH2/C LINK_RX
102
C LINK_DET
104
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
INBL
24
VIDEO 1
J402
(2/2)
(2/2)
AUDIO OUT
46
ROUTBL
SA-CD/CD/CD-R
J405
(2/2)
(2/2)
OUT
IC1503
SELECTOR
1
6
5
56
2
A
B
BST
S
Y
3
1
IC1403
5
7
IC1404
3
1
IC1404
5
7
IC1405
5
7
IC1405
3
1
ANTENNA
(Page 16)
J1311
DMPORT
VIDEO 3 IN/
PORTABLE AV IN
87
DCAC_DSP_IN
D1501
D1504
_
IC203
VIDEO AMP
13 V1
14
SW1
4
SW3
6
SW4
2
SW5
10
31
33
32
SW2
V_SW1
V_SW3
34
V_SW4
V_SW2
29
30
V_COMP_SW2
V_COMP_SW1
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
28
V_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
13
14
53
54
VOUT1
VOUT2
INCSL
INCSR
TC74HC153_A
TC74HC153_B
13
6
5
7
SPDIF
2
1
6
5
IC1017
HDMI
SECTION
SECTION
(Page 17)
C
HDMI
SECTION
SECTION
(Page 17)
• Signal Path
: FM
: ANALOG
: DIGITAL
: VIDEO
• R-CH is omitted due to same as L-CH.
16
16
STR-K995
STR-K995
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
VACS
CONTROL
D841
D1001
PROTECT
SWITCH
Q722,723,725
Q793,795
RELAY
DRIVE
Q790
RY791
RELAY
DRIVE
Q710
RY701
D1111
RY601
D1110
D1109
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
12
1
PROTECTOR
23
HP_RY
25
FRONT_A_RY/DG51_FB
17
FRONT_B_RY/DG51_FA
22
SW_RY
24
C/REAR/SB_RY
119
VACS CTRL
RV102
ENCODER
3
2
VOL_ENCODER(B)_UP
15
VOL_ENCODER(A)_DOWN
16
POWER_KEY
85
?/1
S100
62
RESET_TRG
81
STOP
109
77
AVCC
D910-913
AC
IN
T903
Q922
Q923
D924
RY901
D915
F901
D914
RELAY
DRIVE
Q901
D105
5V
Q110
D920-923
19
VCC
44
VCC
-7V
REG
3
2
+7V
REG
1
3
AUDIO
+7V
IC801
+5V
REG
2
1
VIDEO
+5V
IC807
IC802
POWER_RY 9
SUB_T 7
D4001
F4001
F4002
RELAY
+B
-5V
REG
2
1
VIDEO
-5V
IC804
D805-808
F1
F2
L
SW
SL
SL
C
A
J790
FLUORESCENT
INDICATOR TUBE
FL101
78
FL_LAT
7 DIN
8 CLK
9
6
3
8
4
5
2
1
9
10
STB
70
FL_CLK
71
FL_DATA
14
29
31
31
SEG1-17
42
32
GRID1-11
F1
F2
FL DRIVE
IC100
IC101
DCAC IN
113
S109-112,115
FUNCTION
KEY
AD_KEY1
114
FUNCTION
KEY
AD_KEY2
115
S101-108
SYSTEM CONTROLLER
IC1907 (2/3)
AF POWER
PROTECT
Q640
AF POWER
PROTECT
Q540
FRONT A
SURROUND
8
HP_DETECT
5V
58
57
X0
X1
X1101
12.5MHz
51
NMI
56
VCC
+3.3V
REG
3
1
IC1904
AUDIO
-7V
+10V
REG
3
1
TUNER
+10V
IC1902
T901
Q921
AC DET
IC1710
RESET TRG
IC1700
IC1111
SYSTEM
RESET
D802
R803
+B
-B
-B
SWITCH
Q691,692
-20V REG
Q801
FL101
-20V
POWER AMP
-B
+5V
REG
REG
3
1
IC1031
PROTECT
DET
2
7
IC691
+5V
+2.5V
REG
5
+2.5V
+3.3V
REG
2
4
IC1901
+3.3V
+5V
REG
3
1
IC1001
AUDIO
+5V
+7V
REG
2
1
IC4001
+5V
REG
4
5
IC3516
TX5V_PWR 41
IC3519(1/2)
+3.3V
REG
4
2
IC3526
+3.3V
REG
4
2
IC3527
+1.8V
REG
IC3528
+4.1V
REG
2
1
IC4100
HDMI
+5V
3.3V
1.8V
+5V
REG
4
2
IC1906
DMPORT
+5V
94
HDMI_CTRL
13
BRIDGABLE_RY
SPEAKERS
(IMPEDANCE USE 6-16
Ω)
MASTER
VOLUME
VOLUME
RV101
ENCODER
3
2
INPUT_ENCODER_B
21
INPUT_ENCODER_A
20
INPUT
SELECTOR
8
RESET
55
INIT
1
2
5
1
IC2000
AMP
+3.3V
(STBY)
MAIN
SECTION
CENTER
(Page 15)
RELAY
DRIVE
Q611
RY710
RELAY
DRIVE
Q560
RY560
L
R
R-CH
TM602
FRONT B
TM604
J2000
AUTO CAL MIC
82 SIRCS IN
REMOTE
CONTROL
RECEIVER
2
IC103
AUDIO OUT
J309
1
3
1
5
3
7
1
SUB WOOFER
RELAY
DRIVE
Q809
RY801
VCC
SW1
1
2
4
1
2
REG
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