Sony STR-K760P Service Manual ▷ View online
9
STR-K760P
SECTION 2
TEST MODE
FACTORY PRESET MODE
•
All preset contents are reset to the default setting.
•
Procedure:
While depressing the MAIN MENU and the PRESET TUNING
While depressing the MAIN MENU and the PRESET TUNING
−
buttons simultaneously, press the ?/1 button again. The message
“FACTORY” appears and the present contents are reset to the
default values.
“FACTORY” appears and the present contents are reset to the
default values.
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.
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 ?/1 button to turn on
the main power. Either the message “9 k STEP” or “10 k STEP”
appears. Select the desired step.
Set the FUNCTION to AM. Turn off the main power.
While depressing the TUNING+ button or the
PRESET TUNING + button, press the ?/1 button to turn on
the main power. Either the message “9 k STEP” or “10 k STEP”
appears. Select the desired step.
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.
all segments turn on at the same time, then each segment turns on
one after another.
•
Procedure:
While depressing the MOVIE and the
While depressing the MOVIE and the
> buttons simultaneously,
press the ?/1 button to turn on the main power.
1. All segments turn on.
2CH , A. F. D. , MOVIE and MUSIC LED turn on.
2. Press the VIDEO 1 button, confirm display.
A.F.D. and MUSIC LED turn on.
3. Press the VIDEO 1 button, confirm display
2CH and MOVIE LED turn on.
4. Press the VIDEO 1 button, All segments and all LEDS turn off.
5. Every pressing of the VIDEO 1 button turns on each segment
and LED one after another in the same order.
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.
Use this mode before returning the product to clients upon
completion of repair.
C
SL
SR
SBL
SBR
SP A
SP B SLEEP OPT COAX MULTI CH IN 96/24
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
L
SW
C
R
SL
S
SR
SBL SB SBR
LFE
SP A
SP B SLEEP OPT COAX MULTI CH IN 96/24
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
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
•
Procedure:
While depressing the 2CH button, press the ?/1 button to turn
on the main power.
The message “SF. CLR.” appears and initialization is performed.
While depressing the 2CH button, press the ?/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 FM MODE and the DISPLAY buttons
simultaneously, press the ?/1 button to turn on the main power.
The model name, destination and the software version are
displayed.
While depressing the FM MODE and the DISPLAY buttons
simultaneously, press the ?/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 TUNER FM/AM buttons
simultaneously, 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.
While depressing the A.F.D. and the TUNER FM/AM buttons
simultaneously, 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.
COMMAND MODE SELECTION MODE
•
The command mode (AV1 or AV2) of the remote commander can
be selected.
•
Procedure:
1. While depressing the ENTER button, press the ?/1 button
to turn on the main power.
2. The message “C.MODE.AV 1” or “C.MODE.AV 2” appears
for a moment. Select the desired mode.
10
STR-K760P
MEMO
11
11
STR-K760P
• Waveforms
DIGITAL Board
For schematic diagrams.
Note:
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
No mark : FM
No mark : FM
*
: Imposible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
J
: ANALOG INPUT
c
: DIGITAL INPUT
• Abbreviation
AUS : Australian model
CND: Canadian model
E51 : Chilean and Peruvian models
MY : Malaysia model
SP : Singapore model
CND: Canadian model
E51 : Chilean and Peruvian models
MY : Malaysia model
SP : Singapore model
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.)
Caution:
Pattern face side:
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.
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.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
1
IC1101
wa
(XOUT)
4.7 Vp-p
1V/div, 40ns/DIV
81.4ns
(12.288MHz)
2
IC1201
9
(MCLK1)
2.8 Vp-p
73.6ns (13.59MHz)
1V/div, 40ns/DIV
3
IC1601
id
(XI)
3.5Vp-p
62.5ns (16MHz)
1V/div, 40ns/DIV
Note:
The components identified by
mark
The components identified by
mark
0
or dotted line with mark
0
are critical for safety.
Replace only with part number
specified.
specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
Ne les remplacer que par une
pièce portant le numéro spécifié.
SECTION 3
DIAGRAMS
3-1. CIRCUIT BOARD LOCATION
DIGITAL board
MAIN board
VIDEO board
DISPLAY board
HEADPHONE board
POWER board
AC SELECT board
(E51 model only)
(E51 model only)
TUNING board
STANDBY board
12
12
STR-K760P
3-2. BLOCK DIAGRAMS – MAIN SECTION –
• Signal Path
: FM
: ANALOG
: DIGITAL
: VIDEO
• R-CH is omitted due to same as L-CH.
AUDIO IN
AUDIO IN
PROCESSOR
INL6
74
54
L OUT
INL5
76
INL7
72
41
SL OUT
36
C OUT
35
SW OUT
MUTING
Q361
DATA
28
CLK
27
LATCH
29
MUTING
Q365
MUTING
Q363
MUTING
Q364
15
CLK
SDA
SCL
16
LATCH
14
DATA
SYSTEM CONTROL
IC1601(2/3)
IC203
VIDEO AMP
IC807
+5V REG
DVD
IN
VIDEO 2
IN
J1101
3
5
6
2
IC1102
DIGITAL AUDIO
I/F RECEIVER
IC1101
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
14
BCK
15
LRCK
16
DATAO
IC1102
X1101
12.288MHz
AUDIO DSP
IC1201
KFSI0
22
SDI2
30
HCLK
34
HCS
36
HACN
32
PM
113
BST
56
XRST
2
23
SDO1
24
SDO2
25
SDO3
BCKI2
29
LRCKI2
28
IC1202
SRAM
AUDIO CODEC
IC1501
MCLKI
39
CDT1
43
CCLK
42
CS
41
PD
17
S.MUTE
3
27
L OUT1
BCLK
4
LRCK
5
SDTO
9
SDTI1
6
SDTI2
7
SDTI3
8
25
L OUT2
23
L OUT3
24
R OUT3
LIN
31
ANALOG SOUND
58
RECEL 1
SL
BAL L+
14
LIN2
20
23
24
25
SL
C
SLIN2
CIN2
SWIN2
A
98 97 95 96 99 100
94
1
11
12
88
DO
DI
CLK
CE
ERROR
XSTATE
CKSEL1
DATA0
M1
V3
SW3
20
HCLK
4
HCS
5
HACN
7
PM
3
BST
6
XRST
10
CDT1
12
SCL
13
CS
8
PD
9
SMUTE
24
ANA/DIG
MUTING
CONT
Q1601,1602
21
5
6
34
33
F.MUTING
MUTING
SWITCH
SWITCH
Q379
RELAY
DRIVE
DRIVE
Q560
J403
DVD
AUDIO IN
J404
(1/2)
(1/2)
VIDEO 1
VIDEO 2
OPTICAL
IN
IC1104
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
X1201
13.5MHz
14
SCK OUT
20
BCKO
19
LRCKO
18
SDI1
24
AUDIO
GP8
69
EXLOCK
59
INL1
4
TUNER PACK
FM
75
Ω
COAXIAL
AM
R-CH
ST-DI
ST-DO
CLK
CE
STEREO
TUNED
MUTING
FM
AM
R CH
L CH
SYSTEM CONTROL.
IC1601(1/3)
DO
76
SLATCH
78
STEREO
74
TUNED
73
MUTING
75
COAXIAL
OPTICAL
DIGITAL
D1101
IC201
D1601
SDA
SCL
EEPROM
IC1604
IC401
WOOFER AMP
WOOFER RELAY
68
(ANALOG SIGNAL)
IN
IN
CD
INL3
80
INL4
78
J402
(1/2)
(1/2)
MD/TAPE
VIDEO 1
J404
(2/2)
(2/2)
AUDIO OUT
60
RECEL 2
MD/TAPE
J402
(2/2)
(2/2)
OUT
RY560
AUDIO OUT
J405
SUB WOOFER
5
7
13
90
S1
SW1
4
M2
2
89
S2
SW2
VIDEO IN
J201
(1/2)
(1/2)
J200
(1/2)
(1/2)
VIDEO 1
VIDEO IN
VIDEO 2
VIDEO IN
DVD
3 V2
1 V1
10
VOUT 1
MONITOR
+ V
J201
(2/2)
(2/2)
VIDEO OUT
5
VOUT 2
8
+5V
VIDEO 1
J200
(2/2)
(2/2)
VIDEO OUT
IC804
-5V REG
- V
14
-5V
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