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Model
STR-K670P
Pages
49
Size
6.47 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
str-k670p.pdf
Date

Sony STR-K670P Service Manual ▷ View online

9
STR-K670P
Notes
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10
STR-K670P
SECTION 2
TEST MODE
FACTORY PRESET MODE
All preset contents are reset to the default setting.
Procedure:
While depressing the  PRESET TUNING–  and the
  DIMMER  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  PRESET TUNING–  and the
  DIMMER  buttons simultaneously, press the power  ?/1
button again. The message “FACTORY” appears and the
present contents are reset to the default values.
AM CHANNEL STEP 9 kHz/10 kHz
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.
This mode is only for US, Canadian,  Australian and E models.
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.
Procedure:
While depressing the  PRESET TUNING–  and the  AM
buttons simultaneously, press the power  ?/1  button to turn
on the main power.
1. All segments turn on.
2. Press the  VIDEO 1  button, confirm display.
3. Press the  VIDEO 1  button, confirm display
4. Press the  VIDEO 1  button, All segments turn off.
5. Every pressing of the  VIDEO 1  button turns on each
segment one after another in the same order.
(Not only the  VIDEO 1  button, but also the other buttons
such as  VIDEO 2 ,  DVD ,  SA-CD/CD ,  FM  and  AM  can
be used.)
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.
Procedure:
While depressing the  2CH  button, press the power  ?/1
button to turn on the main power.
The message “SF. CLR.” appears and initialization is
performed.
SOFTWARE VERSION DISPLAY MODE
The software version is displayed.
Procedure:
While depressing the  PRESET TUNING–  and the 
 I  buttons
simultaneously, press the power  ?/1  button to turn on the
main power.  The model name, destination and the software
version are  displayed.
KEY CHECK MODE
Button check
Procedure:
While depressing the  A.F.D  and the 
  I   buttons simulta-
neously, press the power   ?/1  button to turn on the main
power.
“REST 25” 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 48”, “VOL MAX” appear.
AUTO BETICAL MODE
This mode is installed in the Europe models only. When this
mode is used, the receiver scans the broadcasts that can be
received by the tuner, and sets up the broadcasts. Be sure to
start scanning after connecting the antenna.
Procedure:
1. Check that the antenna is connected.
2. Press the  ?/1  button to turn on the power while pressing the
 MEMORY  button.
CHANGE COMMON MODE
This mode is command mode changed to AV 1 or AV2.
Procedure:
While depressing the  ENTER  button, press the power  ?/1
button to turn on the main power.
Either the message “C.MODE.AV 1” or “C.MODE.AV 2”
appears.
SHIPMENT MODE
All preset contents are reset to the default setting.
Procedure:
While depressing the  A.F.D.  and the  AM  buttons simulta-
neously, press the power   ?/1  button to turn on the main
power.
“CLEARED” appears.
L
SW
C
R
SL
S
SR
SBL SB SBR
LFE
SP A 
SP B  SLEEP  OPT  COAX   MULTI CH IN  96/24
DIGITALEX
PRO LOGIC II x DTS-ES NEO:6 MPEG-2 AAC RDS
D.RANGE EQ STEREO MONO
D D
D D
dB
kHz
mft.
MHz
MEMORY
DIRECT
L
SW
R
S
SB
LFE
SP A 
SP B  SLEEP  OPT  COAX   MULTI CH IN  96/24
DIGITALEX
PRO LOGIC II x DTS-ES NEO:6 MPEG-2 AAC RDS
D.RANGE EQ STEREO MONO
D D
D D
dB
kHz
mft.
MHz
MEMORY
DIRECT
C
SL
SR
SBL
SBR
SP A 
SP B  SLEEP  OPT  COAX   MULTI CH IN  96/24
DIGITALEX
PRO LOGIC II x DTS-ES NEO:6 MPEG-2 AAC RDS
D.RANGE EQ STEREO MONO
D D
D D
kHz
mft.
MHz
MEMORY
DIRECT
11
11
STR-K670P
STR-K670P
SECTION 3
DIAGRAMS
• Waveforms
– DIGITAL Board –
• Circuit Boards Location
DIGITAL board  
MAIN board
DISPLAY board
HEADPHONE board
POWER board
AC SELECT board
(E51 model only)
TUNING board
STANDBY board
For Schematic Diagrams.
Note:
• All capacitors are in 
µ
F unless otherwise noted.  (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
• All resistors are in 
  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
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
J
: ANALOG
c
: DIGITAL
• Abbreviation
AR
: Argentina model
AUS
: Australian model
CND
: Canadian model
E51
: Chilean and Peruvian models
MX
: Mexican model
RU
: Russian model
SP
: Singapore model
SP6
: Singapore and Malaysia models
For Printed Wiring Boards.
Note:
X
: parts extracted from the component side.
•        
a
: Through hole.
•        
f
: internal component.
: Pattern from the side which enables seeing.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
   Note:
The components identi-
fied by mark 
0
  or dot-
ted line with mark 
0
 are
critical for safety.
Replace only with part
number specified.
   Note:
Les composants identifiés
par une marque 
0
 sont cri-
tiques pour la sécurité.
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
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Side A)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side B)
the parts face are indicated.
1
 
IC1501
 
9
 
(MCLK1) 
1 V/DIV, 40 ns/DIV
72 ns
3.4 Vp-p
2
 
IC1101
 
id
 
(X1) 
1 V/DIV, 20 ns/DIV
41.6 
µ
s
4.2 Vp-p
3
 
IC1301
 
ws
 
(XIN) 
1 V/DIV, 40 ns/DIV
81 ns
4.4 Vp-p
• Indication of transistor.
Ver. 1.3
12
12
STR-K670P
STR-K670P
3-1. BLOCK DIAGRAM — MAIN SECTION —
• Signal Path
: FM
: ANALOG
: DIGITAL
• R-CH is omitted due to same as L-CH.
AUDIO IN
AUDIO IN
PROCESSOR
INL4
4
49
LOUT
INL5
2
40
SLOUT
33
COUT
DATA
24
CLK
25
27
VOL CLK
SDA
SCL
28
VOL DATA LATCH
SYSTEM CONTROL
IC1101(2/3)
DVD
IN
J1301
3
5
6
2
IC1303
DIGITAL AUDIO
I/F RECEIVER
IC1301
L
DISPLAY
/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
IC1503
SELECTOR
IC1501
KFSI0
SYSCLK
LRCK
BCK
DOUT
22
16
13
14
15
SDI2
30
HCLK
34
HCS
36
HACN
32
PM
113
BST
56
XRST
2
23
SDO1
24
SDO2
25
SDO3
BCKI2
29
LRCKI2
28
BCKII
17
LRCKII
15
IC1502
SRAM
AUDIO CODEC
IC1452
AD CONVERTER
IC1401
MCLKI
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
SL
ADIFL
13
LIN
16
19
20
21
SL
C
32
SW OUT
SBL
SLIN
CIN
SWIN
A
98 97 95 96 99 100
94
1
DO
DI
CLK
CE
ERROR
XSTATE
CKSEL1
DATA0
92
BST SEL
20
HCLK
4
HCS
5
HACN
7
PM
3
BST
6
XRST
10
RST(680)
9
RST(800)
12
MC
13
MC
14
MDI
15
MDO
5
6
29
30
RELAY
DRIVE
Q560
J401
VIDEO 1
VIDEO 2 
AUDIO IN
SA-CD/CD
AUDIO IN
DVD
SA-CD/
CD IN
OPTICAL
IN
IC1352
DIN0
3
22
21
XIN
XOUT
93
XMODE
CKSEL1
47
GP9
68
HD OUT
35
HD IN
33
2
GP9
18
HD OUT
19
HD IN
9
MCLK1
12
MCLK2
X1502
13.9MHz
14
SCK OUT
1
LIN
6
RST
20
BCKO
19
LRCKO
18
SDI1
24
6
1
5
2
AUDIO
GP8
69
EXLOCK
59
INL1
10
TN1
TUNER PACK
FM
75 Ω
COAXIAL
AM
R-CH
ST-DI
ST-DO
CLK
CE
STEREO
TUNED
MUTING
FM
AM
R CH
L CH
TUNER +10V
10V
TUNER +3.3V
3.3V
SYSTEM CONTROL.
IC1101(1/3)
DO
73
SLATCH
74
TUNER-DATA
17
T.SERIAL CLK
16
STEREO
76
TUNED
75
MUTE
78
RDS INT
RDS CLK
52
RDS DATA
AEP, UK, RU
RDS DATA
53
FM SIGOUT
RDS SIG
43
COAXIAL
OPTICAL
DIGITAL
D1301
IC400
SDA
SCL
EEPROM
IC1131
C/SB RY
68
INL2
8
INL3
6
J402
RY702
AUDIO OUT
J403
SUB WOOFER
S
B
A
Y
use with DIGITAL board
 for 1-86-854-11, only
Ver. 1.2
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