Read Sony STR-K885 Service Manual online
SERVICE MANUAL
Sony Corporation
Home Audio Division
Published by Sony Techno Create Corporation
Published by Sony Techno Create Corporation
E Model
Australian Model
MULTI CHANNEL AV RECEIVER
9-887-651-02
2007H16-1
© 2007.08
© 2007.08
Ver. 1.1 2007.08
SPECIFICATIONS
STR-K885
• STR-K885 is the tuner and the amplifier section
in HT-DDW885.
This receiver incorporates Dolby* Digital and Pro Logic Surround and
the DTS** Digital Surround System.
*
the DTS** Digital Surround System.
*
Manufactured under license from Dolby Laboratories. “Dolby”, “Pro
Logic”, “Surround EX”, and the double-D symbol are trademarks of
Dolby Laboratories.
Logic”, “Surround EX”, and the double-D symbol are trademarks of
Dolby Laboratories.
** “DTS” and “DTS-ES Neo:6” are registered trademarks of DTS, Inc.
“96/24” is a trademark of DTS, Inc.
— Continued on next page —
Amplifier section
Models of area code SP, SP6, AUS, E51
Stereo mode (6 ohms, 1 kHz, THD 1%)
90 W + 90 W
1)
Surround mode
2)
(reference) (6 ohms, 1 kHz,
THD 10%)
RMS output
FRONT: 135 W
per channel
1)
CENTER:135 W
1)
SURROUND: 135 W
per channel
1)
SURROUND BACK:
135 W
1)
Models of area code AR
Stereo mode (6 ohms, 1 kHz, THD 1%)
90 W + 90 W
1)
80 W + 80 W
3)
Surround mode
2)
(reference) (6 ohms, 1 kHz,
THD 10%)
RMS output
FRONT:
135 W per channel
1)
,
125 W per channel
3)
CENTER:135 W
1)
SURROUND:
135 W per channel
1)
,
125 W per channel
3)
SURROUND BACK:
135 W
1)
, 125 W
3)
1)
Measured under the following conditions:
2)
Reference power output for front, center, surround
and surround back speakers. Depending on the
sound field settings and the source, there may be
no sound output.
and surround back speakers. Depending on the
sound field settings and the source, there may be
no sound output.
3)
Measured under the following conditions:
220 V AC, 50 Hz
Inputs
Analog
Sensitivity: 800 mV/
50 kohms
Digital (Coaxial) Impedance: 75 ohms
Outputs (Analog)
AUDIO OUT
Voltage: 800 mV/
10 kohms
SUB WOOFER
Voltage: 2 V/1 kohm
Tone
Gain levels
±6 dB, 1 dB step
Reproduction frequency range:
28 – 20,000 Hz
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 SP, SP6, AUS
With 9-kHz tuning scale:
531 – 1,602 kHz
Models of area code E51
With 10-kHz tuning scale:
530 – 1,610 kHz
4)
With 9-kHz tuning scale:
531 – 1,602 kHz
4)
Models of area code AR
With 10-kHz tuning scale:
530 – 1,610 kHz
Antenna
Loop antenna
Intermediate frequency
450 kHz
Area code
Power requirements
SP, SP6, AR
230 V AC, 50 Hz
AUS, E51
240 V AC, 50 Hz
2
STR-K885
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.
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.
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”.
SURROUND
L
R
CENTER
SURROUND BACK
Area code
Video section
Inputs/Outputs
Video:
1 Vp-p, 75 ohms
COMPONENT VIDEO:
Y: 1 Vp-p, 75 ohms
P
B
/C
B
: 0.7 Vp-p, 75 ohms
P
R
/C
R
: 0.7 Vp-p, 75 ohms
80 MHz HD Pass Through
General
Power requirements
(Models of area code SP, SP6, AUS only)
Power output (DIGITAL MEDIA PORT)
DC OUT:
5V, 700 mA
Power consumption
Power consumption (during standby mode)
0.3 W
Dimensions (width/height/depth) (Approx.)
430
× 157.5 × 310 mm
including projecting parts
and controls
and controls
Mass (Approx.)
7.6 kg
Area code
Power requirements
SP, SP6
230 – 240 V AC, 50/60 Hz
AUS
240 V AC, 50 Hz
AR
220 – 230 V AC, 50/60 Hz
E51
120/220/240 V AC,
50/60 Hz
Area code
Power consumption
SP, SP6, AUS, E51, AR
200 W
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
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.
Design and specifications are subject to
change without notice.
change without notice.
•
Abbreviation
AR
AR
: Argentine model
AUS : Australian model
E51 : Chilean and Peruvian models
SP
E51 : Chilean and Peruvian models
SP
: Singapore model
SP6 : Singapore and Malaysia models
Parts No.
MODEL IDENTIFICATION
– Rear Panel –
– Rear Panel –
Model
Part No.
SP, SP6 models
2-897-029-1
[]
AUS model
2-897-029-2
[]
E51 model
2-897-029-3
[]
AR model
2-897-029-4
[]
Ver. 1.1
3
STR-K885
TABLE OF CONTENTS
1.
GENERAL
...................................................................
4
2.
TEST MODE
............................................................... 10
3.
ELECTRICAL ADJUSTMENT
............................. 12
4.
DIAGRAMS
................................................................. 13
4-1.
Block Diagram – MAIN Section – .................................. 14
4-2.
Block Diagram – DISPLAY/POWER Section – ............. 15
4-3.
Printed Wiring Board – DIGITAL Board (Side A) – ...... 16
4-4.
Printed Wiring Board – DIGITAL Board (Side B) – ...... 17
4-5.
Schematic Diagram – DIGITAL Board (1/5) – .............. 18
4-6.
Schematic Diagram – DIGITAL Board (2/5) – .............. 19
4-7.
Schematic Diagram – DIGITAL Board (3/5) – .............. 20
4-8.
Schematic Diagram – DIGITAL Board (4/5) – .............. 21
4-9.
Schematic Diagram – DIGITAL Board (5/5) – .............. 22
4-10. Printed Wiring Board – MAIN Board – ......................... 23
4-11. Schematic Diagram – MAIN Board (1/4) – ................... 24
4-12. Schematic Diagram – MAIN Board (2/4) – ................... 25
4-13. Schematic Diagram – MAIN Board (3/4) – ................... 26
4-14. Schematic Diagram – MAIN Board (4/4) – ................... 27
4-15. Printed Wiring Boards
4-11. Schematic Diagram – MAIN Board (1/4) – ................... 24
4-12. Schematic Diagram – MAIN Board (2/4) – ................... 25
4-13. Schematic Diagram – MAIN Board (3/4) – ................... 26
4-14. Schematic Diagram – MAIN Board (4/4) – ................... 27
4-15. Printed Wiring Boards
– DISPLAY Board, POWER KEY Board – .................... 28
4-16. Schematic Diagram
– DISPLAY Board, POWER KEY Board – .................... 29
4-17. Printed Wiring Boards
– STANDBY Board, DCDC Board,
AC Select Board (E51 only) – ......................................... 30
AC Select Board (E51 only) – ......................................... 30
4-18. Schematic Diagram
– STANDBY Board, DCDC Board,
AC Select Board (E51 only) – ......................................... 31
AC Select Board (E51 only) – ......................................... 31
4-19. Printed Wiring Boards
– DCAC Board, VIDEO3 Board – .................................. 32
4-20. Schematic Diagram
– DCAC Board, VIDEO3 Board – .................................. 33
4-21. Printed Wiring Boards
– VIDEO Board, HEADPHONE Board – ....................... 34
4-22. Schematic Diagram
– VIDEO Board, HEADPHONE Board – ....................... 35
4-23. Printed Wiring Board – HDMI SW Board – .................. 36
4-24. Schematic Diagram – HDMI SW Board – ..................... 37
4-24. Schematic Diagram – HDMI SW Board – ..................... 37
5.
EXPLODED VIEWS
5-1.
Front Panel Section ......................................................... 44
5-2.
Chassis Section ................................................................ 45
6.
ELECTRICAL PARTS LIST
.................................. 46
4
STR-K885
SECTION 1
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
Front panel
.
Receiver
?/1
AUTO CAL MIC
AUTO CAL
PHONES
VIDEO 3 IN/PORTABLE AV IN
VIDEO
L AUDIO R
MEMORY/
ENTER
TUNING
MODE
TUNING
2CH
A.F.D.
MOVIE
MUSIC
DIMMER
MUTING
DISPLAY
INPUT MODE
INPUT SELECTOR
MASTER VOLUME
3
4
8
9
1 2
5
6
7
q;
qa
qj
qs
qg
qh
qd
qf
Name
Function
A
?
/
1
(on/standby)
Press to turn the receiver on
or off (page 28, 36, 37, 54).
or off (page 28, 36, 37, 54).
B
AUTO CAL
Press to activate the Auto
Calibration function (page
30).
Calibration function (page
30).
C
Display
The current status of the
selected component or a list
of selectable items appears
here (page 6).
selected component or a list
of selectable items appears
here (page 6).
D
Remote sensor
Receives signals from
remote commander.
remote commander.
E
DISPLAY
Press to select information
displayed on the display
(page 62).
displayed on the display
(page 62).
Name
Function
F
INPUT MODE
Press to select the input
mode when the same
components are connected
to both digital and analog
jacks (page 59).
mode when the same
components are connected
to both digital and analog
jacks (page 59).
G
MASTER
VOLUME
VOLUME
Turn to adjust the volume
level of all speakers at the
same time (page 33, 34, 36,
37).
level of all speakers at the
same time (page 33, 34, 36,
37).
H
MUTING
Press to mute the sound
(page 34).
(page 34).
I
DIMMER
Press to adjust the
brightness of the display.
brightness of the display.
J
INPUT
SELECTOR
SELECTOR
Turn to select the input
source to playback (page
34).
source to playback (page
34).
K
2CH
Press to select a sound field
(page 49, 51, 54).
(page 49, 51, 54).
A.F.D.
MOVIE
MUSIC
L
TUNING +/–
Press to scan a station (page
55, 58).
55, 58).
M
TUNING MODE
Press to select the tuning
mode (page 55, 58).
mode (page 55, 58).
N
MEMORY/
ENTER
ENTER
Press to store a station or
enter the selection when
selecting the settings (page
28, 57).
enter the selection when
selecting the settings (page
28, 57).
O
VIDEO 3 IN/
PORTABLE AV
IN jacks
PORTABLE AV
IN jacks
Connects to a camcorder or
video game (page 25, 34).
video game (page 25, 34).
P
AUTO CAL MIC
jack
jack
Connects to the supplied
optimizer microphone for
the Auto Calibration
function (page 29).
optimizer microphone for
the Auto Calibration
function (page 29).
Q
PHONES jack
Connects to headphones
(page 69).
(page 69).