Sony HT-DDW995 / STR-K995 Service Manual ▷ View online
3
STR-K995
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.
ELECTRICAL ADJUSTMENT
............................. 13
4.
DIAGRAMS
................................................................. 14
4-1.
Block Diagram – MAIN Section – .................................. 15
4-2.
Block Diagram – DISPLAY/POWER Section – ............. 16
4-3.
Block Diagram – HDMI Section – .................................. 17
4-4.
Printed Wiring Board – DIGITAL Board (Side A) – ...... 18
4-5.
Printed Wiring Board – DIGITAL Board (Side B) – ...... 19
4-6.
Schematic Diagram – DIGITAL Board (1/5) – .............. 20
4-7.
Schematic Diagram – DIGITAL Board (2/5) – .............. 21
4-8.
Schematic Diagram – DIGITAL Board (3/5) – .............. 22
4-9.
Schematic Diagram – DIGITAL Board (4/5) – .............. 23
4-10. Schematic Diagram – DIGITAL Board (5/5) – .............. 24
4-11. Printed Wiring Board – MAIN Board – ......................... 25
4-12. Schematic Diagram – MAIN Board (1/4) – ................... 26
4-13. Schematic Diagram – MAIN Board (2/4) – ................... 27
4-14. Schematic Diagram – MAIN Board (3/4) – ................... 28
4-15. Schematic Diagram – MAIN Board (4/4) – ................... 29
4-16. Printed Wiring Boards
4-11. Printed Wiring Board – MAIN Board – ......................... 25
4-12. Schematic Diagram – MAIN Board (1/4) – ................... 26
4-13. Schematic Diagram – MAIN Board (2/4) – ................... 27
4-14. Schematic Diagram – MAIN Board (3/4) – ................... 28
4-15. Schematic Diagram – MAIN Board (4/4) – ................... 29
4-16. Printed Wiring Boards
– DISPLAY Board, POWER KEY Board – .................... 30
4-17. Schematic Diagram
– DISPLAY Board, POWER KEY Board – .................... 31
4-18. Printed Wiring Boards
– STANDBY Board, DCDC Board – .............................. 32
4-19. Schematic Diagram
– STANDBY Board, DCDC Board – .............................. 33
4-20. Printed Wiring Boards
– DCAC Board, VIDEO3 Board – .................................. 34
4-21. Schematic Diagram
– DCAC Board, VIDEO3 Board – .................................. 35
4-22. Printed Wiring Boards
– VIDEO Board, HEADPHONE Board – ....................... 36
4-23. Schematic Diagram
– VIDEO Board, HEADPHONE Board – ....................... 37
4-24. Printed Wiring Board – HDMI RE Board – ................... 38
4-25. Schematic Diagram – HDMI RE Board (1/2) – ............. 39
4-26. Schematic Diagram – HDMI RE Board (2/2) – ............. 40
4-25. Schematic Diagram – HDMI RE Board (1/2) – ............. 39
4-26. Schematic Diagram – HDMI RE Board (2/2) – ............. 40
5.
EXPLODED VIEWS
5-1.
Front Panel Section ......................................................... 56
5-2.
Chassis Section ................................................................ 57
6.
ELECTRICAL PARTS LIST
.................................. 58
About area codes
Th
Moreover, it is possible to distinguish the model
by Part No..
by Part No..
e area code of the receiver you purchased is
shown on the lower right portion of the rear panel
(see the illustration below).
(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”.
ERS
ONT A
R
SURROUND
L
L
R
CENTER
Area code
Part No.
BACK PANEL
Model
Part No.
US Model
2-897-800-9
4
STR-K995
SECTION 1
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
Front panel
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
AUTO CAL
MUTING
DISPLAY
INPUT MODE
INPUT SELECTOR
MASTER VOLUME
MULTI CHANNEL DECODING
3
5
9
q;
qa
qk
qd
qf
qg
qh
qj
1
2
8
6
7
4
qs
Name
Function
A
?
/
1
(on/standby)
Press to turn the receiver on
or off (page 28, 37, 38, 54,
77).
or off (page 28, 37, 38, 54,
77).
B
SPEAKERS
(OFF/A/B/A+B)
(OFF/A/B/A+B)
Press to select the front
speaker system (page 29).
speaker system (page 29).
C
Display
The current status of the
selected component or a
list of selectable items
appears here (page 7).
selected component or a
list of selectable items
appears here (page 7).
D
MULTI
CHANNEL
DECODING
lamp
CHANNEL
DECODING
lamp
Lights up when multi
channel audio is decoded
(page 38).
channel audio is decoded
(page 38).
E
Remote sensor
Receives signals from
remote commander.
remote commander.
F
DISPLAY
Press to select information
displayed on the display
(page 64).
displayed on the display
(page 64).
Name
Function
G
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).
H
MASTER
VOLUME
VOLUME
Turn to adjust the volume
level of all speakers at the
same time (page 34, 35, 37,
38).
level of all speakers at the
same time (page 34, 35, 37,
38).
I
MUTING
Press to mute the sound
(page 35).
(page 35).
J
AUTO CAL
Press to activate the Auto
Calibration function
Calibration function
(page 30).
K
INPUT
SELECTOR
SELECTOR
Turn to select the input
source to playback (page
35, 37, 38, 55, 58, 59, 61,
63, 65).
source to playback (page
35, 37, 38, 55, 58, 59, 61,
63, 65).
L
2CH
Press to select a sound field
(page 49, 51, 53).
(page 49, 51, 53).
A.F.D.
MOVIE
MUSIC
M
TUNING +/–
Press to scan a station
(page 55, 58).
(page 55, 58).
N
TUNING MODE
Press to select the tuning
mode (page 55, 77).
mode (page 55, 77).
O
MEMORY/
ENTER
ENTER
Press to store a station or
enter the selection when
selecting the settings (page
28).
enter the selection when
selecting the settings (page
28).
P
VIDEO 3 IN/
PORTABLE AV
IN jacks
PORTABLE AV
IN jacks
Connect to a portable
audio/video component
such as a camcorder or
video game (page 26, 35).
audio/video component
such as a camcorder or
video game (page 26, 35).
Q
AUTO CAL MIC
jack
jack
Connects to the supplied
optimizer microphone for
the Auto Calibration
function (page 30).
optimizer microphone for
the Auto Calibration
function (page 30).
R
PHONES jack
Connects to headphones
(page 74).
(page 74).
5
STR-K995
About the indicators on the display
SW
LFE
SP A
SP B
SP B
L
C
SL
S
;
D
;
PL
;
PL II
OPT
DTS
MEMORY
ST
MONO
D.RANGE
R
SR
COAX
HDMI
1
2
3
4
6
7
9
8
5
q;
qa
qf
qs
qd
Name
Function
A
SW
Lights up when the audio signal
is output from the SUB
WOOFER jack.
is output from the SUB
WOOFER jack.
B
LFE
Lights up when the disc being
played back contains an LFE
(Low Frequency Effect)
channel and the LFE channel
signal is actually being
reproduced.
played back contains an LFE
(Low Frequency Effect)
channel and the LFE channel
signal is actually being
reproduced.
C
SP A/SP B
Lights up according to the
speaker system used. However,
these indicators do not light up
if the speaker output is turned
off or if headphones are
connected.
speaker system used. However,
these indicators do not light up
if the speaker output is turned
off or if headphones are
connected.
D ;
D
Lights up when Dolby Digital
signals are input.
Note
When playing a Dolby Digital
format disc, be sure that you
have made digital connections
and that INPUT MODE is not
set to “ANALOG” (page 59).
signals are input.
Note
When playing a Dolby Digital
format disc, be sure that you
have made digital connections
and that INPUT MODE is not
set to “ANALOG” (page 59).
E ;
PL/
;
PL II
“; PL” lights up when the
receiver applies Pro Logic
processing to 2 channel signals
in order to output the center and
surround channel signals.
receiver applies Pro Logic
processing to 2 channel signals
in order to output the center and
surround channel signals.
“; PL II” lights up when the
Pro Logic II Movie or Music
decoder is activated.
Pro Logic II Movie or Music
decoder is activated.
Name
Function
F
OPT
Lights up when INPUT MODE
is set to “AUTO IN” and the
source signal is a digital signal
being input through the
OPTICAL jack, or when
INPUT MODE is set to “OPT
IN” (page 59).
is set to “AUTO IN” and the
source signal is a digital signal
being input through the
OPTICAL jack, or when
INPUT MODE is set to “OPT
IN” (page 59).
G
DTS
Lights up when DTS signals are
input.
Note
When playing a DTS format
disc, be sure that you have made
digital connections and that
INPUT MODE is not set to
“ANALOG” (page 59).
input.
Note
When playing a DTS format
disc, be sure that you have made
digital connections and that
INPUT MODE is not set to
“ANALOG” (page 59).
H
MEMORY
Lights up when a memory
function, such as Preset
Memory (page 57), etc., is
activated.
function, such as Preset
Memory (page 57), etc., is
activated.
I
Tuner
indicators
indicators
Lights up when using the
receiver to tune in radio stations
(page 54), etc.
receiver to tune in radio stations
(page 54), etc.
J
Preset
station
indicators
station
indicators
Lights up when using the
receiver to tune in radio stations
you have preset. For details on
presetting radio stations, see
page 56.
receiver to tune in radio stations
you have preset. For details on
presetting radio stations, see
page 56.
K
D.RANGE
Lights up when dynamic range
compression is activated (page
42).
compression is activated (page
42).
L
COAX
Lights up when INPUT MODE
is set to “AUTO IN” and the
source signal is a digital signal
being input through the
COAXIAL jack, or when
INPUT MODE is set to “COAX
IN” (page 59).
is set to “AUTO IN” and the
source signal is a digital signal
being input through the
COAXIAL jack, or when
INPUT MODE is set to “COAX
IN” (page 59).
M
HDMI
Lights up when the receiver
recognizes a component
connected via a HDMI IN jack
(page 20).
recognizes a component
connected via a HDMI IN jack
(page 20).
N
Playback
channel
indicators
channel
indicators
L
R
C
SL
SR
S
The letters (L, C, R, etc.)
indicate the channels being
played back. The boxes around
the letters vary to show how the
receiver downmixes the source
sound.
Front Left
Front Right
Center (monaural)
Surround Left
Surround Right
Surround (monaural or the
surround components obtained
by Pro Logic processing)
Example:
Recording format (Front/
Surround): 3/2.1
Sound Field: A.F.D. AUTO
indicate the channels being
played back. The boxes around
the letters vary to show how the
receiver downmixes the source
sound.
Front Left
Front Right
Center (monaural)
Surround Left
Surround Right
Surround (monaural or the
surround components obtained
by Pro Logic processing)
Example:
Recording format (Front/
Surround): 3/2.1
Sound Field: A.F.D. AUTO
L C R
SL SR
SW
6
STR-K995
Rear panel
2
5
6
4
3
1
DIGITAL
(ASSIGNABLE)
DMPORT
OPTICAL
SAT
IN
DVD
IN
COAXIAL
ANTENNA
VIDEO 2/
BD IN
AM
HDMI
DVD IN
VIDEO 2/BD IN
OUT
SA-CD/CD/CD-R
TV
L
R
OUT
IN
IN
SAT
AUDIO IN
VIDEO IN
DVD
AUDIO IN
VIDEO IN
VIDEO 1
AUDIO OUT
VIDEO OUT
VIDEO OUT
AUDIO IN
AUDIO OUT
VIDEO IN
L
R
L
R
L
R
SUB
WOOFER
MONITOR
SAT IN
COMPONENT VIDEO
DVD IN
VIDEO 1 IN
Y
P
B
/C
B
P
R
/C
R
MONITOR OUT
SPEAKERS
FRONT B
FRONT A
L
R
R
SURROUND
L
L
R
CENTER
A
DIGITAL INPUT/OUTPUT section
OPTICAL
IN jack
Connects to a DVD
player, etc. The
COAXIAL jack
provides a better
quality of loud
sound (page 23,
25).
player, etc. The
COAXIAL jack
provides a better
quality of loud
sound (page 23,
25).
COAXIAL IN
jack
jack
HDMI IN/
OUT jack
a)
Connects to a DVD
player, or a Blu-ray
disc player. The
image and the
sound are output to
a TV or a projector
(page 20).
player, or a Blu-ray
disc player. The
image and the
sound are output to
a TV or a projector
(page 20).
DMPORT
jack
Connect to a
DIGITAL MEDIA
PORT adapter
(page 60).
DIGITAL MEDIA
PORT adapter
(page 60).
B
COMPONENT VIDEO INPUT/
OUTPUT section
OUTPUT section
COMPONENT
VIDEO
INPUT/
OUTPUT
jack
VIDEO
INPUT/
OUTPUT
jack
a)
Connects to a DVD
player, TV,
satellite tuner, etc.
You can enjoy high
quality image
(page 22, 23, 25).
player, TV,
satellite tuner, etc.
You can enjoy high
quality image
(page 22, 23, 25).
Green
(Y)
Blue
(P
B
/C
B
)
Red
(P
R
/C
R
)
C
SPEAKERS section
Connects to
speakers (page 17).
speakers (page 17).
Connects to sub
woofer (page 17).
woofer (page 17).
D
VIDEO/AUDIO INPUT/OUTPUT
section
section
AUDIO IN/
OUT jack
OUT jack
Connects the video
and audio jacks of a
VCR, a DVD
player, etc.
and audio jacks of a
VCR, a DVD
player, etc.
(page 22–26).
VIDEO IN/
OUT jack
OUT jack
a)
White (L)
Red (R)
Yellow
