Read Sony HT-DDW680 / HT-DDW780 / HTP-36DW / STR-K680 / STR-K780 Service Manual online
SERVICE MANUAL
Sony Corporation
Home Audio Division
Published by Sony Techno Create Corporation
Published by Sony Techno Create Corporation
AEP Model
UK Model
STR-K780
E Model
STR-K680/K780
Australian Model
STR-K780
MULTI CHANNEL AV RECEIVER
9-887-140-04
2006H16-1
© 2006.08
© 2006.08
Ver. 1.3 2006.08
SPECIFICATIONS
STR-K680/K780
• STR-K680 is the tuner and the amplifier section
in HT-DDW680, STR-K780 is the tuner and the
amplifier section in HT-DDW780/HTP-36DW.
amplifier section in HT-DDW780/HTP-36DW.
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the double-D symbol are trademarks of
Dolby Laboratories.
“DTS” and “DTS Digital Surround” are registered trademarks of
Digital Theater Systems, Inc.
“Dolby”, “Pro Logic” and the double-D symbol are trademarks of
Dolby Laboratories.
“DTS” and “DTS Digital Surround” are registered trademarks of
Digital Theater Systems, Inc.
— Continued on next page —
Photo : STR-K780
Amplifier section
Power Output
1)
Models of area code SP, SP6
(6 ohms 1 kHz, THD 0.7%)
FRONT
(6 ohms 1 kHz, THD 0.7%)
FRONT
2)
: 70 W/ch
CENTER
2)
: 70 W
SUR
2)
: 70
W/ch
(6 ohms 1 kHz, THD 10%)
FRONT
FRONT
2)
: 10 0 W/ch
CENTER
2)
:
10 0 W
SUR
2)
:
10 0 W/ch
Models of area code AEP, UK, RU
(6 ohms 1 kHz, THD 0.7%)
FRONT
(6 ohms 1 kHz, THD 0.7%)
FRONT
2)
: 85
W/ch
CENTER
2)
: 85 W
SUR
2)
8
:
5 W / ch
(6 ohms 1 kHz, THD 10%)
FRONT
2)
: 12 2 W/ch
CENTER
2)
: 122 W
SUR
2)
:
122 W/c h
Models of area code AUS
(6 ohms 120 Hz–20 kHz, THD 0.09%)
FRONT
(6 ohms 120 Hz–20 kHz, THD 0.09%)
FRONT
2)
: 50
W/ch
CENTER
2)
: 50 W
SUR
2)
: 50
W/ch
(6 ohms 1 kHz, THD 0.7%)
FRONT
FRONT
2)
: 85
W/ch
CENTER
2)
: 85 W
SUR
2)
: 85
W/ch
(6 ohms 1 kHz, THD 10%)
FRONT
FRONT
2)
: 12 2 W/ch
CENTER
2)
: 12 2 W
SUR
2)
:
122 W/ch
1)
Measured under the following conditions:
2)
Depending on the sound field settings and the
source, there may be no sound output.
source, there may be no sound output.
Area code
Power requirements
SP, SP6, AEP, UK, RU 230 V AC, 50 Hz
AR
230 V AC, 50 Hz
Models of area code E51, MX
Power Output
Power Output
1)
(6 ohms 1 kHz, THD 0.7%)
FRONT
FRONT
2)
: 70
W/ch
CENTER
2)
: 70
W
SUR
2)
: 70
W/ch
(6 ohms 100 Hz, THD 0.7%)
SUB WOOFER
SUB WOOFER
2)
: 70 W
(6 ohms 1 kHz, THD 10%)
FRONT
FRONT
2)
: 100
W/ch
CENTER
2)
: 10 0
W
SUR
2)
: 10 0
W/ch
(6 ohms 100 Hz, THD 10%)
SUB WOOFER
SUB WOOFER
2)
: 10 0 W
E51, AUS
240 V AC, 50 Hz
MX
127 V AC, 60 Hz
Models of area code AR
Power Output
Power Output
1)3)
(6 ohms 1 kHz, THD 0.7%)
FRONT
FRONT
2)
:
W/ch
1)
, 65 W/ch
3)
CENTER
2)
:
W
1)
, 65 W
3)
SUR
2)
:
W/ch
1)
, 65 W/ch
3)
(6 ohms 100 Hz, THD 0.7%)
SUB WOOFER
SUB WOOFER
2)
: W
1)
, 65 W
3)
(6 ohms 1 kHz, THD 10%)
FRONT
FRONT
2)
: 100
100
100
100
100
W/ch
1)
, 90 W/ch
3)
CENTER
2)
:
W
1)
, 90 W
3)
SUR
2)
:
W/ch
1)
, 90 W/ch
3)
(6 ohms 100 Hz, THD 10%)
SUB WOOFER
SUB WOOFER
2)
:
W
1)
, 90 W
3)
3)
Measured under the following conditions:
Area code
Power requirements
AR
220 V AC, 50 Hz
70
70
70
70
70
70
2
STR-K680/K780
About area codes
The area code of the receiver you purchased is
shown on the lower right portion of the rear panel
(see the illustration below).
shown on the lower right portion of the rear panel
(see the illustration below).
Any differences in operation, according to the area
code, are clearly indicated in the text, for example,
“Models of area code AA only”.
code, are clearly indicated in the text, for example,
“Models of area code AA only”.
CENTER
FRONT
L
R
L
R
+
+
Area code
MODEL IDENTIFICATION
– Rear Panel –
– Rear Panel –
Parts No.
Reproduction frequency range:
28 – 20,000 Hz
Tone
FM tuner section
Tuning range
87.5 - 108.0 MHz
Antenna
FM wire antenna
Antenna terminals
75 ohms, unbalanced
Intermediate Frequency
10.7 MHz
AM tuner section
Tuning range
Models of area code AEP, UK, RU,
SP, SP6, A US
With 9-kHz tuning scale:
531 - 1,602 kHz
Antenna
Loop antenna
Intermediate Frequency
450 kHz
Video section
Inputs/Outputs
Video:
1 Vp-p, 75 ohms
COMPONENT VIDEO:
Y: 1 Vp-p, 75 ohms
P
B
/C
B
/B-Y: 0.7 Vp-p,
75 ohms
P
R
/C
R
/R-Y: 0.7 Vp-p,
75 ohms
80 MHz HD Pass Through
(only K780)
Gain levels
±6 dB, 1 dB step
Models of area code E51
With 10-kHz tuning scale: 530 – 1,610 kHz
With 10-kHz tuning scale: 530 – 1,610 kHz
4)
With 9-kHz tuning scale: 531 – 1,602 kHz
4)
Models of are code AR, MX
With 10-kHz tuning scale: 530 – 1,610 kHz
With 10-kHz tuning scale: 530 – 1,610 kHz
4)
You can change the AM tuning scale to 9 kHz or
10 kHz. After tuning in any AM station, turn off
the receiver. While holding down TUNING +,
press ?/1. All preset stations will be erased when
you change the tuning scale. To reset the scale to
10 kHz (or 9 kHz), repeat the procedure.
10 kHz. After tuning in any AM station, turn off
the receiver. While holding down TUNING +,
press ?/1. All preset stations will be erased when
you change the tuning scale. To reset the scale to
10 kHz (or 9 kHz), repeat the procedure.
General
Power requirements
Power consumption
Power consumption (during standby mode)
0.2 W
Dimensions (w/h/d) (Approx.)
430
× 145 × 300 mm
including projecting parts
and controls
and controls
Mass (Approx.)
7.5 kg
Design and specifications are subject to
change without notice.
change without notice.
Area code
Power requirements
AEP, UK, RU
230 V AC, 50/60 Hz
AUS
240 V AC, 50 Hz
SP, SP6
230 – 240 V AC, 50/60 Hz
Area code
Power consumption
AEP, UK, AUS,
190 W
E51, MX, RU, AR
E51
120/220/240 V AC,
50/60 Hz
50/60 Hz
M
AR
X
1
220-230V AC, 50/60 Hz
27 V AC, 60 Hz
SP, SP6
170 W
(K780)
7.8 kg
(K680)
Inputs (Analog)
Inputs (Digital)
Outputs (Analog)
SA-CD/CD,
VIDEO 1, 2, DVD
VIDEO 1, 2, DVD
Sensitivity: 800 mV
Impedance: 50 kohms
Impedance: 50 kohms
DVD (Coaxial)
Sensitivity: –
Impedance: 75 ohms
Impedance: 75 ohms
VIDEO 1
(VIDEO 1 is only K780)
(only K780)
, 2
(Optical)
Sensitivity: –
Impedance: –
Impedance: –
SUB WOOFER
Voltage: 2 V
Impedance: 1 kohm
Impedance: 1 kohm
• Abbreviation
AR
: Argentina model
AUS
: Australian model
E51
: Chilean and Peruvian models
MX
: Mexican model
RU
: Russian model
SP
: Singapore model
SP6
: Singapore and Malaysia models
Ver. 1.2
Model
Part No.
E51 model
2-661-458-2
[]
AR model
2-661-458-3
[]
MX model
2-661-458-4
[]
AEP, UK, RU models
2-662-452-0
[]
SP, SP6 models
2-662-452-1
[]
AUS model
2-662-452-2
[]
3
STR-K680/K780
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
°C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
also be added to ordinary solder.
TABLE OF CONTENTS
1.
GENERAL
...................................................................
4
2.
TEST MODE
............................................................... 11
3.
DIAGRAMS
3-1.
Block Diagram – MAIN Section – .................................. 14
3-2.
Block Diagram – DISPLAY/POWER Section – ............. 15
3-3.
Printed Wiring Board – DIGITAL Board (Side A) – ...... 16
3-4.
Printed Wiring Board – DIGITAL Board (Side B) – ...... 17
3-5.
Schematic Diagram – DIGITAL Board (1/3) – .............. 18
3-6.
Schematic Diagram – DIGITAL Board (2/3) – .............. 19
3-7.
Schematic Diagram – DIGITAL Board (3/3) – .............. 20
3-8.
Printed Wiring Board – MAIN Board – ......................... 21
3-9.
Schematic Diagram – MAIN Board (1/3) – ................... 22
3-10. Schematic Diagram – MAIN Board (2/3),
HEADPHONE Board – ................................................... 23
3-11. Schematic Diagram – MAIN Board (3/3),
AC SELECT Board, ADCC Board,
STANDBY Board – ......................................................... 24
STANDBY Board – ......................................................... 24
3-12. Printed Wiring Boards
– ADCC Board, HEADPHONE Board – ........................ 25
3-13. Printed Wiring Boards
– STANDBY Board, AC SELECT Board – .................... 26
3-14. Printed Wiring Board – DISPLAY Board – ................... 27
3-15. Printed Wiring Boards
3-15. Printed Wiring Boards
– TUNING Board, POWER Board – .............................. 28
3-16. Schematic Diagram – DISPLAY Board,
TUNING Board, POWER Board – ................................. 29
3-17. Printed Wiring Board – VIDEO Board – ........................ 30
3-18. Schematic Diagram – VIDEO Board – .......................... 31
3-18. Schematic Diagram – VIDEO Board – .......................... 31
4.
EXPLODED VIEWS
4-1.
Front Panel Section ......................................................... 39
4-2.
Chassis Section ................................................................ 40
5.
ELECTRICAL PARTS LIST
.................................. 41
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED LINE
WITH MARK
0
ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
4
STR-K680/K780
SECTION 1
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
Front panel
Receiver
AUTO CAL MIC
PHONES
MEMORY
FM MODE
TUNING
+
PRESET TUNING
VIDEO 1
VIDEO 2
DVD
SA-CD/CD
FM
AM
AMP MENU
ENTER
MASTER
VOLUME
VOLUME
INPUT MODE
+
DISPLAY
DIMMER
2CH
A.F.D.
MOVIE
MUSIC
?/1
1
2 3
4
6 7
8
9
5
qj
qk
ql
w;
qg
qh
qf
qaq;
qs
qd
Name
Function
A ?
/
1
Press to turn the receiver
on or off.
on or off.
B
DISPLAY
Press to select information
displayed on the display.
displayed on the display.
C
DIMMER
Press to adjust the
brightness of the display.
brightness of the display.
D
Remote sensor
Receives signals from
remote commander.
remote commander.
E
Display
The current status of the
selected component or a
list of selectable items
appears here.
selected component or a
list of selectable items
appears here.
F
2CH
Press to select 2CH
STEREO mode.
STEREO mode.
G
A.F.D.
Press to select A.F.D. mode.
Name
Function
H
MOVIE,
MUSIC
MUSIC
Press to select sound fields
(MOVIE, MUSIC).
(MOVIE, MUSIC).
I
MASTER
VOLUME
VOLUME
Turn to adjust the volume
level of all speakers at the
same time.
level of all speakers at the
same time.
J
ENTER
Press to store a station or
enter the selection when
selecting the settings.
enter the selection when
selecting the settings.
K
INPUT MODE
Press to select the input
mode when the same
components are connected
to both digital and analog
jacks.
mode when the same
components are connected
to both digital and analog
jacks.
L I
/
i
/
U
/
u
After pressing AMP
MENU (M), press I or i
and U or u to select the
settings.
MENU (M), press I or i
and U or u to select the
settings.
M
AMP MENU
Press to display the menu
of the receiver.
of the receiver.
N
Input buttons
Press one of the buttons to
select the component you
want to use.
select the component you
want to use.
O
PRESET
TUNING +/–
TUNING +/–
Press to select a preset
station.
station.
P
TUNING +/–
Press to scan a station.
Q
MEMORY
Press to store a station.
R
FM MODE
Press to select FM
monaural or stereo
reception.
monaural or stereo
reception.
S
PHONES jack
Connects to a headphone.
T
AUTO CAL MIC
jack
jack
Connects to the supplied
ECM-AC2 optimizer
microphone for the Auto
Calibration function.
ECM-AC2 optimizer
microphone for the Auto
Calibration function.