Sony STR-K402 Service Manual ▷ View online
6
STR-K402
SECTION 2
TEST MODE
SOFTWARE VERSION DISPLAY MODE
* The software version is displayed.
* Procedure:
* Procedure:
While depressing the TUNER and the VIDEO buttons
simultaneously, press the power ?/1 button to turn on the main
power. The model name, destination and the software version are
displayed.
simultaneously, press the power ?/1 button to turn on the main
power. The model name, destination and the software version are
displayed.
FLUORESCENT INDICATOR TUBE TEST MODE
* All fluorescent segments are tested. When this test is activated,
all segments turn on at the same time, then each segment turns on
one after another.
one after another.
* Procedure:
While depressing the TV/SAT and the DVD/LD buttons
simultaneously, press the power ?/1 button to turn on the main
power.
simultaneously, press the power ?/1 button to turn on the main
power.
1. All segments turn on.
NAME , SURR and SOUND FIELD MODE LED turn on.
2. Press the VIDEO button, confirm display
Digital Cinema Sound, SET UP and 2CH LED turn on.
3. Press the VIDEO button, confirm display
MULTI CHANNEL DECODING(blue), LEVEL and A.F.D.
LED turn on.
LED turn on.
4. Press the VIDEO button, All segments turn off.
5. Every pressing of the VIDEO button turns on each segment and
LED one after another in the same order.
(Not only the VIDEO button, but also the other buttons such as
DVD/LD , TV/SAT , MD/TAPE , CD , TUNER can be used.)
(Not only the VIDEO button, but also the other buttons such as
DVD/LD , TV/SAT , MD/TAPE , CD , TUNER can be used.)
FACTORY SET MODE
* All preset contents are reset to the default setting.
* Procedure:
* Procedure:
While depressing the VIDEO and the CD buttons simultaneously,
press the power ?/1 button to turn on the main power. The
message FACTORY appears and switch off the set.
While depressing the VIDEO and the CD buttons simultaneously,
press the power ?/1 button again. The message FACTORY
appears and the present contents are reset to the default values.
press the power ?/1 button to turn on the main power. The
message FACTORY appears and switch off the set.
While depressing the VIDEO and the CD buttons simultaneously,
press the power ?/1 button again. The message FACTORY
appears and the present contents are reset to the default values.
SOUND FIELD CLEAR MODE
* The preset sound field is cleared when this mode is activated.
Use this mode before returning the product to clients upon
completion of repair.
completion of repair.
* Procedure:
While depressing the SOUND FIELD MODE button, press the
power ?/1 button to turn on the main power. The message
S. F. CLR appears and initialization is performed.
power ?/1 button to turn on the main power. The message
S. F. CLR appears and initialization is performed.
AM CHANNEL STEP 9 kHz/10 kHz
SELECTION MODE
SELECTION MODE
* Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.
* Procedure:
Set the FUNCTION to AM. Turn off the main power.
While depressing the TUNING+ button or the
PRESET TUNING+ button, press the power ?/1 button to turn
on the main power. Either the message 9 k STEP or 10 k STEP
appears. Select the desired step.
While depressing the TUNING+ button or the
PRESET TUNING+ button, press the power ?/1 button to turn
on the main power. Either the message 9 k STEP or 10 k STEP
appears. Select the desired step.
KEY CHECK MODE
* Button check
* Procedure:
* Procedure:
While depressing the SURR and the A.F.D buttons simultaneously,
press the power ?/1 button to turn on the main power.
“REST 36” appears.
Every pressing of any button other than ?/1 counts down the
buttons. The buttons which are already counted once are not
counted again. When all buttons are pressed “REST 00” appears.
When MASTER VOLUME is rotated in clockwise direction,
“VOL MIN”, “VOL 1” to “VOL 30”, “VOL MAX” appear.
press the power ?/1 button to turn on the main power.
“REST 36” appears.
Every pressing of any button other than ?/1 counts down the
buttons. The buttons which are already counted once are not
counted again. When all buttons are pressed “REST 00” appears.
When MASTER VOLUME is rotated in clockwise direction,
“VOL MIN”, “VOL 1” to “VOL 30”, “VOL MAX” appear.
SW
L
SL
C
R
S
SR
SLEEP
SP.OFF
( ( ( L F E ) ) )
DIGITAL
OPT COAX MULTI CH IN
PRO LOGIC DTS MPEGSTEREO MONO RDS
MEMORY
MUTING
INFO
NEWS
TA
EQ
D.RANGE
D D
dB
kHz
mft.
MHz
SW
L
R
S
SLEEP
L F E
COAX
PRO LOGIC
MPEGSTEREO
RDS
MUTING
INFO
TA
D.RANGE
D D
k
m
MHz
SL
C
SR
SP.OFF
( ( ( ) ) )
DIGITAL
OPT
MULTI CH IN
DTS
MONO
MEMORY
NEWS
EQ
dB
Hz
ft.
ft.
7
STR-K402
SECTION 3
DIAGRAMS
For schematic diagrams.
Note:
Note:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
%
: indicates tolerance.
•
f
: internal component.
•
2
: nonflammable resistor.
•
1
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages 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 production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: CD
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each
block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each
block.)
• Waveform
– DISPLAY BOARD –
– DISPLAY BOARD –
– DIGITAL BOARD –
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
1
IC102
id
5.8Vp-p
63ns
2
IC1005
7
5.8Vp-p
81ns
For printed wiring boards.
Note:
Note:
• X
: parts extracted from the component side.
•
a
: Through hole.
•
f
: internal component.
• b
: Pattern from the side which enables seeing.
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
8
STR-K402
3-1. CIRCUIT BOARDS LOCATION
STANDBY board
POWER SW board
HP board
DISPLAY board
MAIN board
VIDEO board
DIGITAL board
9
9
STR-K402
3-2. BLOCK DIAGRAM – MAIN SECTION –
— TUNER UNIT —
• Signal Path
• R-CH is omitted due to same as L-CH.
: FM
: CD
FM
AM
R-CH
S DATA
PLL DATA
S CLK
S LAT
STEREO
AUTO STOP
S DATA
DATA OUT
S CLK
S LAT
STEREO
TUNED
T MUTING
T MUTING
FM
AM
R OUT
L OUT
CD IN
MD/TAPE OUT
DVD/LD
AUDIO IN
VIDEO
AUDIO OUT
VIDEO
AUDIO IN
FRONT
SURROUND
CENTER
SUB WOOFER
J501
PROC.
IC201
IN G2
63
IN B2
70
REC OUT 2A
61
IN C2
69
IN E2
67
REC OUT 2B
62
49
L OUT
IN D2
68
43
SL OUT
37
C OUT
28
SW CH OUT
MUTING
Q361
DATA
32
CLOCK
31
LATCH
33
DATA
CLOCK
S CE
MUTING
Q362
MUTING
Q363
MUTING
Q364
J1004
J1006
VIDEO
VIDEO IN
MONITOR
VIDEO OUT
MOUT
10
V1
12
OUT
5
V2
3
V3
1
2
S1
13
S2
4
M2
11
M1
VIDEO SELECT
IC1015
66
AUTO STOP
S1
75
S2
76
VIDEO MUTING
74
65
67
STEREO
62
TUNER DATA IN
60
TUNER DATA OUT
61
TUNER CLK
59
TUNER LAT
79
M CLK
80
M CE
78
M DATA
AUTO STOP
T MUTING
T MUTING
STEREO
DATA
S DATA
S CLK
S LAT
CLOCK
S CE
DATA
SYSTEM CONTROL
IC102(1/2)
TV/SAT
AUDIO IN
J401
J402
MD/TAPE IN
J403
3
1
IC401(1/2)
DIGITAL
DVD/LD IN
J1001
IR LINK
DET
IC1002
DIGITAL
TV/SAT IN
3
5
6
2
IC1003
DIGITAL AUDIO
I/F RECEIVER
IC1004
L
DIN0
3
DIN1
4
DO
35
DI
36
CLK
38
CE
37
ERROR
34
XSTATE
17
XMODE
48
12.288M
22
DIR DO
DIR DI
DIR CLK
DIR CE
DIR ERROR
DIR XSTATE
DIR MODE
13
MCLK
14
BCK
15
LRCK
16
DATAO
IC1003
1
7
IC1005
X1101
12.288MHz
6
2
IC1005
AUDIO DSP
IC1006
SDIA1
85
SDIA0
84
SO
67
SI
68
SCK
69
CS
66
CSB
65
IC
62
XI
8
DSP SO
47
SBOB0
46
SBOB1
45
SBOB2
SDBCK0
83
SDWCK0
82
DSP SI
DSP CLK
DSP CS
DSP CSB
DSP IC
3
5
IC1005
IC1007
SRAM
AUDIO CODEC
IC1008
MCLK
39
CDT1
43
CCLK
42
DIF0/CSN
41
DFS
11
PDN
17
SMUTE
3
CODEC CDT1
27
L OUT1
BCK
4
LRCK
5
SDTO
9
SDTI1
6
SDTI2
7
SDTI3
8
CODEC CLK
CODEC CS
CODEC DFS
CODEC MUTING
CODEC PD
5
7
IC402
3
L OUT2
3
1
IC403
23
L OUT3
3
1
IC404
24
R OUT3
5
7
IC404
LIN+
30
LIN-
29
2
1
IC1201
6
7
IC1201
ANALOG SOUND
IN F2
66
SW CH N IN
27
SL
50
44
38
SEL OUT2
60
TIN2
58
45
39
26
L CH N IN
SL CH N IN
C CH N IN
SL
C
SW
DOUT2
59
SL CH D IN
C CH D IN
SW CH D IN
A
89
VIDEO
VIDEO OUT
DVD/LD
VIDEO IN
TV/SAT
VIDEO IN
-5V
REG
3
2
-5V
IC1014
-12V
90 92 91 95 96 93
94
DIR DO
DIR D1
DIR CLK
DIR CE
DIR ERR
DIR XSTATE
DIR XMODE
DIR DATA0
24
DSP SO
DIR DO
DIR D1
DIR CLK
DIR CE
DIR ERR
DIR XSTATE
DIR XMODE
22
DSP SI
21
DSP CLK
25
DSP CS
99
DSP CSB
100
DSP IC
69
CODEC CDT1
DSP SO
DSP SI
DSP CLK
DSP CS
DSP CSB
DSP IC
68
CODEC CLK
73
CODEC CS
70
CODEC DFS
71
CODEC PD
72
CODEC MUTING
98
ANA/DIG
CODEC CDT1
CODEC CLK
CODEC CS
CODEC DFS
CODEC PD
CODEC MUTING
MUTING
CONT
Q103,104
88
SYSTEM MUTING
MUTING
SWITCH
Q379
49
MD0
50
MD1
51
MD2
19
FLASH 1
20
FLASH 2
MD0
VDD
MD2
FLASH 1
FLASH 2
RESET
+5.6V
CNS105
FOR FRASH
PROGRAMMING
B
+5V
REG
3
1
+5V
IC1009
+9.2V
+5V
REG
3
1
+5V
IC1011
+5V
REG
3
1
+5V
IC1013
+3.3V
REG
3
1
+3.3V
IC1010
MULTI CH IN
ANTENNA
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