Read Sony HT-DDW880 / HT-DDW900 / STR-K880 / STR-K900 Service Manual online
SERVICE MANUAL
Sony Corporation
Home Audio Division
Published by Sony Techno Create Corporation
Published by Sony Techno Create Corporation
US Model
Canadian Model
STR-K900
AEP Model
UK Model
E Model
Australian Model
STR-K880
MULTI CHANNEL AV RECEIVER
9-887-101-04
2007H16-1
© 2007.08
© 2007.08
Ver. 1.3 2007.08
SPECIFICATIONS
STR-K880/K900
• STR-K880 is the tuner and the amplifier section
in HT-DDW880, STR-K900 is the tuner and the
amplifier section in HT-DDW900.
amplifier section in HT-DDW900.
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 —
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
HARMONIC DISTORTION:
(Models of area code US only)
With 6 ohm loads, both channels driven, from
120 – 20,000 Hz; rated 90 watts per channel
minimum RMS power, with no more than
0.7% total harmonic distortion from 250
milliwatts to rated output.
120 – 20,000 Hz; rated 90 watts per channel
minimum RMS power, with no more than
0.7% total harmonic distortion from 250
milliwatts to rated output.
Amplifier section
Power Output
1)
Models of area code US, CND
(6 ohms 1 kHz, THD 0.7%)
FRONT
2)
: 90
W/ch
CENTER
2)
:
90 W
SUR
2)
: 90
W/ch
(6 ohms 1 kHz, THD 10%)
FRONT
2)
: 140 W/ch
CENTER
2)
:
140 W
SUR
2)
:
140 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.
Inputs (Analog)
Area code
Power requirements
US, CND
120 V AC, 60 Hz
MULTI CH IN,
SA-CD/CD,
MD/TAPE, DVD,
VIDEO 1, 2, 3
VIDEO 1, 2, 3
Sensitivity: 800 mV
Impedance: 50 kohms
Models of area code AEP, UK, SP, SP6, E51
(6 ohms 1 kHz, THD 0.7%)
FRONT
2)
: 90
W/ch
CENTER
2)
: 90 W
SUR
2)
90 W/ch
SUR BACK
2)
:
90 W
(6 ohms 1 kHz, THD 10%)
FRONT
2)
: 135 W/ch
CENTER
2)
: 135 W
SUR
2)
:
:
135 W/ch
SUR BACK
2)
:
135 W
Models of area code AUS
(6 ohms 120 Hz – 20 kHz, THD 0.09%)
FRONT
2)
: 70
W/ch
CENTER
2)
: 70 W
SUR
2)
: 70
W/ch
SUR BACK
2)
:
70 W
(6 ohms 1 kHz, THD 0.7%)
FRONT
2)
: 90
W/ch
CENTER
2)
: 90 W
SUR
2)
: 90
W/ch
SUR BACK
2)
:
90 W
(6 ohms 1 kHz, THD 10%)
FRONT
2)
: 135 W/ch
CENTER
2)
: 135 W
SUR
2)
:
135 W/ch
SUR BACK
2)
:
135 W
AEP,UK,SP,SP6
230 V AC, 50 Hz
E51, AUS
240 V AC, 50 Hz
Inputs (Digital)
Outputs (Analog)
DVD (Coaxial)
Sensitivity: –
Impedance: 75 ohms
VIDEO 1, 2
(Optical)
(Optical)
Sensitivity: –
Impedance: –
MD/TAPE (OUT),
VIDEO 1 (AUDIO
OUT)
VIDEO 1 (AUDIO
OUT)
Voltage: 800 mV
Impedance: 10 kohms
SUB WOOFER
Voltage: 2 V
Impedance: 1 kohm
Photo : STR-K880
2
STR-K880/K900
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.
MODEL IDENTIFICATION
– Rear Panel –
– Rear Panel –
Model
Part No.
US model
2-663-098-0
[]
Canadian model
2-663-098-1
[]
AEP, UK models
2-663-098-2
[]
E51 model
2-663-098-3
[]
SP, SP6 models
2-663-098-4
[]
AUS model
2-663-098-5
[]
Parts No.
• Abbreviation
AUS
: Australian model
CND
: Canadian model
E51
: Chilean and Peruvian models
SP
: Singapore model
SP6
: Singapore and Malaysia models
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 US, CND
With 10-kHz tuning scale:
530 – 1,710 kHz
3)
With 9-kHz tuning scale:
531 – 1,710 kHz
3)
Antenna
Loop antenna
Intermediate frequency
450 kHz
3)
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
MODE, 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
MODE, 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.
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
Gain levels
±6 dB, 1 dB step
General
Power requirements
Power consumption
Power consumption (during standby mode)
0.2 W
Dimensions (w/h/d) (Approx.)
430 157.5 316
mm
(167/8 62 /8
124/ 8
inches) including
projecting parts and
controls
projecting parts and
controls
Mass (Approx.)
8.0 kg (17 lb 11 oz)
Area code
Power requirements
US, CND
120 V AC, 60 Hz
Area code
Power consumption
US
170 W
CND
230 VA
Models of area code E51
With 10-kHz tuning scale:
530 – 1,610 kHz
3)
With 9-kHz tuning scale:
531 – 1,602 kHz
3)
Models of area code AEP, UK, AUS, SP, SP6
With 9-kHz tuning scale:
531 – 1,602 kHz
Antenna
Loop antenna
Intermediate frequency
450 kHz
AEP, UK
230 V AC, 50/60 Hz
AUS
240 V AC, 50 Hz
SP, SP6
230 – 240 V AC,
50/60 Hz
E51
120/220/240 V AC,
50/60 Hz
AEP, UK, AUS, SP,
SP6, E51
SP6, E51
200 W
×
×
×
×
Design and specifications are subject to
change without notice.
change without notice.
Ver. 1.1
3
STR-K880/K900
TABLE OF CONTENTS
1.
GENERAL
...................................................................
4
2.
TEST MODE
............................................................... 12
3.
DIAGRAMS
................................................................. 14
3-1.
Block Diagram – MAIN Section – .................................. 16
3-2.
Block Diagram – DISPLAY/POWER Section – ............. 17
3-3.
Printed Wiring Board – DIGITAL Board (Side A) – ....... 18
3-4.
Printed Wiring Board – DIGITAL Board (Side B) – ....... 19
3-5.
Schematic Diagram – DIGITAL Board (1/5) – ............... 20
3-6.
Schematic Diagram – DIGITAL Board (2/5) – ............... 21
3-7.
Schematic Diagram – DIGITAL Board (3/5) – ............... 22
3-8.
Schematic Diagram – DIGITAL Board (4/5) – ............... 23
3-9.
Schematic Diagram – DIGITAL Board (5/5) – ............... 24
3-10. Printed Wiring Board – MAIN Board – .......................... 25
3-11. Schematic Diagram – MAIN Board (1/3) – .................... 26
3-12. Schematic Diagram – MAIN Board (2/3) – .................... 27
3-13. Schematic Diagram – MAIN Board (3/3) – .................... 28
3-14. Printed Wiring Boards
3-11. Schematic Diagram – MAIN Board (1/3) – .................... 26
3-12. Schematic Diagram – MAIN Board (2/3) – .................... 27
3-13. Schematic Diagram – MAIN Board (3/3) – .................... 28
3-14. Printed Wiring Boards
– DISPLAY Board, POWER Board – ............................. 29
3-15. Schematic Diagrams
– DISPLAY Board, POWER Board – ............................. 30
3-16. Printed Wiring Boards
– STANDBY Board, AC SELECT Board – .................... 31
3-17. Printed Wiring Board – SPEAKER Board – ................... 32
3-18. Schematic Diagram – SPEAKER Board,
3-18. Schematic Diagram – SPEAKER Board,
STANDBY Board, AC SELECT Board – ....................... 33
3-19. Printed Wiring Board – SPEAKER B Board – ............... 34
3-20. Printed Wiring Boards
3-20. Printed Wiring Boards
– ADCC Board, VIDEO 3 Board – ................................. 35
3-21. Schematic Diagrams – SPEAKER B Board,
ADCC Board, VIDEO 3 Board – .................................... 36
3-22. Printed Wiring Boards
– VIDEO Board, HEADPHONE Board – ....................... 37
3-23. Schematic Diagram
– VIDEO Board, HEADPHONE Board – ....................... 38
3-24. Printed Wiring Board – HDMI Board – .......................... 39
3-25. Schematic Diagram – HDMI Board – ............................. 40
3-25. Schematic Diagram – HDMI Board – ............................. 40
4.
EXPLODED VIEWS
4-1.
Front Panel Section ......................................................... 49
4-2.
Chassis Section-1 ............................................................ 50
4-3.
Chassis Section-2 ............................................................ 51
5.
ELECTRICAL PARTS LIST
.................................. 52
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
µ
F
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
0
SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
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”.
SPEAKERS
FRONT B
L
R
L
R
CENTER
SURROUND BACK
SURROUND
FRONT A
R
R
L
L
+
–
+
–
SPEAKERS
+
–
Area code
4
STR-K880/K900
SECTION 1
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
Front panel
To remove the cover
Press PUSH.
When you remove the cover, keep it out of
reach from children.
When you remove the cover, keep it out of
reach from children.
Receiver
?/1
AUTO CAL MIC
SPEAKERS
(OFF/A/B/A+B)
PHONES
VIDEO 3 IN/PORTABLE AV IN
VIDEO
L AUDIO R
MEMORY/
ENTER
TUNING
MODE
TUNING
2CH
A.F.D.
MOVIE
MUSIC
MULTI CH IN
MUTING
DISPLAY
INPUT MODE
INPUT SELECTOR
MASTER VOLUME
1
3
2
5
7
6
4
9
8
q;
qa
qs
ql
qd
qf
qg
qh
qj
PUSH
qk
Name
Function
A
?
/
1
Press to turn the receiver on
or off.
or off.
B
SPEAKERS
(OFF/A/B/A+B)
(OFF/A/B/A+B)
Press to select OFF, A, B,
A+B of the front speakers
A+B of the front speakers
C
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.
D
Remote sensor
Receives signals from
remote commander.
remote commander.
Name
Function
E
DISPLAY
Press to select information
displayed on the display.
displayed on the display.
F
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.
G
MASTER
VOLUME
VOLUME
Turn to adjust the volume
level of all speakers at the
same time.
level of all speakers at the
same time.
H
MUTING
Press to mute the sound.
I
MULTI CH IN
Press to select the audio
directly from the
components connected to
the MULTI CH IN jacks.
directly from the
components connected to
the MULTI CH IN jacks.
J
INPUT
SELECTOR
SELECTOR
Turn to select the input
source to playback.
source to playback.
K
MOVIE,
MUSIC
Press to select sound fields
(MOVIE, MUSIC).
(MOVIE, MUSIC).
L
A.F.D.
Press to select A.F.D.
mode.
mode.
M
2CH
Press to select 2CH
STEREO mode.
STEREO mode.
N
TUNING +/–
Press to scan a station.
O
TUNING MODE
Press to select the tuning
mode.
mode.
P
MEMORY/ENTER
Press to store a station or
enter the selection when
selecting the settings.
enter the selection when
selecting the settings.
Q
VIDEO 3 IN/
PORTABLE AV IN
jacks
PORTABLE AV IN
jacks
To connect a camcorder or
video game.
video game.
R
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.
S
PHONES jack
Connects to a headphone.
