Sony STR-K900 - Fm Stereo/fm-am Receiver, STR-K880 Service Manual

SERVICE MANUAL

Sony Corporation

Home Audio Division
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

9-887-101-02

2006E16-1
© 2006.05

Ver. 1.1 2006.05

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.

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.

— Continued on next page —

POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
(Models of area code U

S 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.

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.

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

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)

Sensitivity: –
Impedance: –

MD/TAPE (OUT),
VIDEO 1 (AUDIO
OUT)

Volt age: 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 lead­free 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 °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.

• Usable with ordinary solder

It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

MODEL IDENTIFICATION
– 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, unbalan ced
Intermedia te 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
Intermedia te frequency

450 kHz

3)

You can change the AM tunin g 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.

Video section

Inputs/Outputs

Video: 1 Vp-p, 75 ohms
COMPONENT VIDEO:

Y: 1 Vp-p, 75 ohms
P

B/CB

/B-Y: 0.7 Vp-p,

75 ohms
P

R/CR

/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 (du ri ng 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

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 sca l e:

530 – 1,610 kHz

3)

With 9-kHz tuning scale:

531 – 1,602 kHz

3)

Models of area cod e AEP, UK, AUS, SP, SP6

With 9-kHz tuning scale:

531 – 1,602 kHz

AntennaLoop 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

200 W

×

××

×

Design and specifications are subject to
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 W iring Boards

– DISPLAY Board, POWER Board – ............................. 29

3-15. Schematic Diagrams

– DISPLAY Board, POWER Board – ............................. 30

3-16. Printed W iring Boards

– STANDBY Board, AC SELECT Board – .................... 31

3-17. Printed Wiring Board – SPEAKER Board – ................... 32

3-18. Schematic Diagram – SPEAKER Board,

STANDBY Board, AC SELECT Board – ....................... 33

3-19. Printed Wiring Board – SPEAKER B Board – ............... 34

3-20. Printed W iring Boards

– ADCC Board, VIDEO 3 Board – ................................. 35

3-21. Schematic Diagrams – SPEAKER B Board,

ADCC Board, VIDEO 3 Board – .................................... 36

3-22. Printed W iring 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

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.

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.

1. A commercial leakage tester, such as the Simpson 229 or RCA
WT -540A. Follow the manufactur ers’ instructions to use these
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 hav e 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 A C range are suitable. (See
Fig. A)

Fig. A. Using an AC voltmeter to check AC leakage.

1.5 k

Ω

0.15 µF

AC
voltmete

r

(0.75 V)

To Exposed Metal
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 SHO WN 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.

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).

Any differences in operation, according to the area
code, are clearly indicated in the text, for example,
“Models of area code AA only”.

SPEAKERS

FRONT B

LR

LR

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.

Front panel

To remove the cover

Press PUSH.
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 32 5 764

98q;

qaqsql qdqfqgqhqj

PU

SH

qk

Name Function

A ?/1 Press to turn the receiver on

or off.

B SPEAKERS

(OFF/A/B/A+B)

Press to select OFF, A, B,
A+B of the front speakers

C Display The current status of the

selected component or a list
of selectable items appears
here.

D Remote sensor Receives signals from

remote commander.

Name Function

E DISPLAY Press to select information

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.

G MASTER

VOLUME

Turn to adjust the volume
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.

J INPUT

SELECTOR

Turn to select the input
source to playback.

K MOVIE,

MUSIC

Press to select sound fields
(MOVIE, MUSIC).

L A.F.D. Press to select A.F.D.

mode.

M 2CH Press to select 2CH

STEREO mode.

N TUNING +/– Press to scan a station.
O TUNING MODE Press to select the tuning

mode.

P MEMORY/ENTER Press to store a station or

enter the selection when
selecting the settings.

Q VIDEO 3 IN/

PORT ABLE AV IN
jacks

To connect a camcorder or
video game.

R AUTO CAL MIC

jack

Connects to the supplied
ECM-AC2 optimizer
microphone for the Auto
Calibration function.

S PHONES jack Connects to a headphone.

5

STR-K880/K900

About
STR-K880 model

the indicators on the display

MEMORY

L C R

SLSSR

SB

SW

LFE

SP A
SP B

RDS

STEREO MONOD.RANGE

NEO:6

SLEEP OPT COAX HDMI 96/24

DIGITAL EX

;

DTS-ES

;

PRO LOGIC IIx

qa q;

qg

qh

qdqf

qs

2143567 8

9

Name Function

A SW Lights up when the audio signal

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.

C SP A/SP B Lights up according to the

speaker system used. However,
these indicators d o not light up
if the speaker output is turned
off or if a headphone is
connected.

D ;DIGITAL

(EX)

Lights up when Dolby Digital
signals are input.
“; DIGITAL EX” lights up
when Dolby Digital Surround
EX signals are decoded.

Note

When playing a Dolby Digital
format disc, be sure that you
have made digital connec tions
and that INPUT MODE is not
set to “ANALOG”.

Name Function

E ;PRO

LOGIC (II)/
(IIx)

Lights up when the receiver
applies Pro Logic processing to
2 channel signals in order to
output the center and surround
channel signals. “; PRO
LOGIC II” lights up when the
Pro Logic II Movie/Music/
Game decoder is activated.
“; PRO LOGIC IIx” lights up
when the Pro Logic IIx Movie/
Music/Game decoder is
activated.

Note

Dolby Pro Logic IIx decoding
does not function for DTS
format signals or for signals
with a sampling frequency of
more than 48 kHz.

F DTS (-ES)/

(96/24)

Lights up when DTS signals are
input. “DTS-ES” lights up
when DTS-ES signals are input.
“DTS 96/24” lights up when the
receiver is decoding DTS 96
kHz/24 bit signals.

Note

When playing a DTS format
disc, be sure that you have made
digital connections and that
INPUT MODE is not set to
“ANALOG”.

G NEO:6 Lights up when DTS Neo:6

Cinema/Music decoder is
activated.

H MEMORY Lights up when a memory

function, such as Preset
Memory, etc., is activated.

Name Function

*Except for models of area code E51.

I Preset

station
indicators

Lights up when using the
receiver t o tune i n radi o stati ons
you have preset. For details on
presetting radio stations.

J Tuner

indicators

Lights up when using the
receiver t o tune i n radi o stati ons,
etc.

Note

“RDS” appears for models of
area code AEP, UK only.

K D.RANGE Lights up when dynamic range

compression is activated.

L HD MI* Flashes when you select

“HDMI A.” in the VIDEO
menu.

M COAX Lights up when INPUT MODE

is set to “ A UTO” and the source
signal is a digital signal being
input through the COAXIA L
jack, or when INPUT MODE is
set to “COAX IN”.

N OPT Lights up when INPUT MODE

is set to “ A UTO” and the source
signal is a digital signal being
input through the OPTICA L
jack, or when INPUT MODE is
set to “OPT IN”.

O SLEEP Lights up when the sleep timer

is activated.

P Playback

channel
indicators

L
R
C
SL
SR
S

SB

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 th e
surround componen ts obtained
by Pro Logic processing)
Surround back (the surround
back components obtaine d by

6.1 channel decoding)

Example:

Recording format (Front/
Surround): 3/2.1
Sound Field: A.F.D. AUTO

L C R

SL SR

SW

6

STR-K880/K900

About
STR-K900 model

the indicators on the displa y

MEMORY

L C R

SLSSR

SW

LFE

SP A
SP B STEREO MONOD.RANGE

SLEEP OPT COAX

DIGITAL

;

DTS

;

PRO LOGIC II

q; 9

qf

qg

qsqd

HDMI

qa

214356 7

8

Name Function

A SW Lights up when the audio signal

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.

C SP A/SP B Lights up according to the

speaker system used. However,
these indicators d o not light up
if the speaker output is turned
off or if a headphone is
connected.

D ;DIGITAL Lights up when Dolby Digital

signals are input.

Note

When playing a Dolby Digital
format disc, be sure that you
have made digital connec tions
and that INPUT MODE is not
set to “ANALOG”.

E ;PRO

LOGIC (II)

Lights up when the receiver
applies Pro Logic processing to
2 channel signals in order to
output the center and surround
channel signals. “; PRO
LOGIC II” lights up when the
Pro Logic II Movie/Music/
Game decoder is activated.

Note

Dolby Pro Logic and Dolby Pro
Logic II decoding do not
function for DTS format
signals.

F 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”.

G MEMORY Lights up when a memory

function, such as Preset
Memory., etc., is activated.

H Preset

station
indicators

Lights up when using the
receiver to tune in radio stations
you have preset. For details on
presetting radio stations.

I Tuner

indicators

Lights up when using the
receiver to tune in radio stations,
etc.

J D.RANGE Light s up whe n dynam ic ran ge

compression is activated.

K HDMI Flashes when you select

“HDMI A.” in the VIDEO
menu.

L COAX Lights up when INPUT MODE

is set to “ A UTO” a nd the source
signal is a digital signal being
input through the COAXIA L
jack, or when INPUT MODE is
set to “COAX IN”.

M OPT Lights up when INPUT MODE

is set to “ A UTO” a nd the source
signal is a digital signal being
input through the OPTICA L
jack, or when INPUT MODE is
set to “OPT IN”.

Name Function

N SLEEP Lights up when the sleep timer

is activated.

O Playback

channel
indicators

L
R
C
SL
SR
S

The letters (L, C, R, etc.)
indicate the chan ne ls being
played back. The boxes around
the letters vary to sho w ho w the
receiver downmixes the source
sound.
Front Left
Front Right
Center (monaural)
Surround Left
Surround Right
Surround (monaural or the
surround components obtai ne d
by Pro Logic processing)

Example:

Recording format (Front/
Surround): 3/2.1
Sound Field: A.F.D. AUTO

Name Function

L C R

SL SR

SW

7

STR-K880/K900

Rear
STR-K880 model

STR-K900 model

panel

1 23 4

DIGITAL

OPTICAL

VIDEO 1

IN

VIDEO 2

IN

DVD

IN

COAXIAL

AM

ANTENNA

56

VIDEO 1

MULTI CH IN

FRONT

CENTER

SUB

WOOFER

SURROUND

VIDEO IN

AUDIO IN

AUDIO

OUT

VIDEO IN VIDEO OUT

VIDEO 2

AUDIO IN

MD/TAPE

SA-CD/CD

L

R

L

R

L

R

SUB

WOOFER

L

L

R

R

OUT ININ

VIDEO IN

DVD

AUDIO IN

AUDIO OUT

VIDEO OUT

DVDINVIDEO 2INMONITOR

OUT

COMPONENT VIDEO

Y

ASSIGNABLE

PB/C

B

/B–Y

P

R/CR

/R–Y

MONITOR

SPEAKERS

FRONT B

LR

LR

CENTER

SURROUND BACK

SURROUND FRONT A

R

R

L

L

+

–

+

–

SPEAKERS

+

–

HDMI

DVD IN

ASSIGNABLE

VIDEO 2 IN

MONITOR OUT

A DIGITAL INPUT section

OPTICAL
IN jack

Connects to a DVD
player, etc. The
COAXIAL jack
provides a better
quality of loud
sound.

COAXIAL IN
jack

HDMI IN/
MONITOR
OUT jack

a)b)

Connects to a DVD
player, or a satellite
tuner. The image
and the sound are
output to a TV or a
projector.

B VIDEO/AUDIO INPUT/OUTPUT

section

AUDIO IN/
OUT jack

Connects the vi deo
and audio jacks of
a VCR or a DVD
player.

VIDEO IN/
OUT jack

b)

White (L)

Red (R)

Ye llow

1

65

3 42

DIGITAL

VIDEO 1

IN

VIDEO 2

IN

DVD
IN

COAXIAL

OPTICAL

ANTENNA

AM

SA-CD/CD

MD/TAPE

OUT

L

R

R

IN

IN

L

L

R

AUDIO IN

VIDEO IN

DVD

AUDIO IN

VIDEO IN

VIDEO 2

AUDIO IN

VIDEO OUT

VIDEO 1

AUDIO OUT

VIDEO IN

L

R

VIDEO OUT

MONITOR

HDMI

DVD IN

ASSIGNABLE

VIDEO 2 IN

MONITOR OUT

L

R

SUB

WOOFER

AUDIO

OUT

SURROUND

SUB

WOOFER

CENTER

MULTI CH IN

FRONT

DVDINVIDEO 2INMONITOR

OUT

COMPONENT VIDEO

Y

ASSIGNABLE

PB/C

B

/B–Y

P

R/CR

/R–Y

CENTER

+

–

SPEAKERS

SURROUND FRONT A

R

R

L

L

+

–

+

–

SPEAKERS

SPEAKERS

FRONT B

LR

LR

8

STR-K880/K900

a)

Except for models of area code E51.

b)

You can watch the selected input image when you
connect the MONITOR OUT jack to a TV monit or.

You can use the supplied remote RM-AAP013
to operate the receiver and to control the Sony
audio/video components that the remote is
assigned to operate. You can also program the
remote to control non-Sony audio/video
components. For detail s, see “Programming
the remote”.

E AUDIO INPUT/OUTPUT section

AUDIO IN/
OUT jack

Connects to an MD
deck or CD player,
etc.

MULTI
CHANNEL
INPUT jack

Connects to a
Super Audio CD
player or D V D
player which has
an analog audio
jack for 5.1
channel sound.

F ANTENNA section

FM
ANTENNA

Connects to the
FM wire antenna
supplied with this
receiver.

AM
ANTENNA

Connects to the
AM loop antenna
supplied with this
receiver.

White (L)

Red (R)

White (L)

Red (R)

Black

Remote commander

Name Function

A AV ?/1 Press to turn on or off the

audio/video components that
the remote is programmed to
operate.
If you press ?/1 (B) at the
same time, it will turn off the
receiver and other
components (SYSTEM
STANDBY).

Note

The function of the AV ?/1
switch changes automatically
each time you press the input
butto ns (wj).

H

X

m

M

.

>

-

VIDEO1 VIDEO2

RM SET UP

SYSTEM STANDBY

SLEEP

TV ?/1 AV ?/1

VIDEO3 DVD

MD/TAPE SA-CD/CD TUNER

AUX

MULTI CH

TOP MENU/

GUIDE

AV MENU

MUTING

MASTER

VOL

DISPLAY

TV VOL TV CH

WIDE

AUTO

CAL

TV/

VIDEO

AMP

MENU

RETURN/EXIT

D.TUNING DISC ALT

ANT

CLEAR

SEARCH MODE

2CH

A.F.D.

123

456

789

0/10

>10/11 12

MOVIE

SUBTITLEMEMORY ENTER

MUSIC

AUDIO

ANGLE

TUNING

JUMP/

TIME

PRESET/

CH/D.SKIP

FM

MODE

DUAL
MONO

x

?/1

P

O

f

F

G

g

TV ?/1
(on/standby)
switch

8

wl

ql

wa

wd
ws

w;

wg

wh

wj

wk

6

qa

5

7

q;

qs

qf

9

3

4

AV ?/1
(on/standby)
switch

?/1

(on/standby)

switch

1

2

qh

wf

qk

qj

qd

qg

C COMPONENT VIDEO INPUT/

OUTPUT section

COMPONENT
VIDEO
INPUT/
OUTPUT
jack

b)

Connects to a DVD
player , TV, or a
satellite tuner. You
can enjoy high
quality image.

D SPEAKER section

Connects to
speakers.

Connects to sub
woofer.

Green

Blue

Red

9

STR-K880/K900

Name Function

B ?/1 Press to turn the receiver on or

off.
To turn off all componen ts,
press ?/1 and A V ?/1 (A) at
the same time (SYSTEM
STANDBY).

SLEEP Press ALT (G) and then press

SLEEP to activate the Sleep
Timer function and the duration
which the receiver turns off
automatically.

C MULTI CH Press to select the audio directly

from the components connected
to the MULTI CH IN jacks.

D MUSIC Press to select sound fields

(MUSIC).

E FM M O DE Press to select FM monaural or

stereo reception.

F PRESET/

CH/D.SKIP
+/–

Press to
–select preset stations.
–select preset channels of th e

TV, VCR, satellite t uner, Blu­ray disc recorder, or hard disc
recorder.

–skip disc of the CD player,

VCD player, DVD player,
MD deck, or LD player
(multi-disc changer only).

G ALT Press to light up the button. It

changes the remote ke y
function to activate the buttons
with orange printing.

H -/-- Press to select the channel entry

mode, either one or two digit of
the TV, Blu-ray disc recorder,
hard disc recorder, PSX, or
satellite tuner.

DISC Press to select a disc directly of

the CD player or VCD player
(multi-disc changer only).

SEARCH
MODE

Press to select the searching
mode or unit for search (tracks,
index, etc.) of the DVD player.

I x Press to stop playback of the

VCR, CD player, VCD player,
LD player, DVD player, MD
deck, DA T deck, tape deck, Blu­ray disc recorder, hard disc
recorder, or PSX.

Name Function

J MUTING Press to mute the sound.
K MASTER

VOL +

a)

/–

Press to adjust the v olume lev el
of all speakers at the same time.

L AMP MENU Press to display the menu of the

receiver. Then, use the control
buttons to perform menu
operations.

M TV/VIDEO Press to select the input si g nal

(TV input or video input).

N AUTO CAL Press to activate the Auto

Calibration function.

O WIDE Press ALT (G) and then press

WIDE to select the wide p icture
mode.

P TV CH +

a)

/– Press to select preset TV

channels.

Q TV VOL

+

a)

/–

Press to adjust the T V volume
level.

R RETURN/

EXIT O

Press to
–return to the previous menu.
–exit the menu while the menu

or on-screen guide of the
VCD player, LD player, DVD
player, Blu-ray disc recorder,
hard disc recorder, PSX, or
satellite tuner is displayed on
the TV screen.

S DISPLAY Press to select information

displayed on the TV screen of
the TV, VCR, VCD player, LD
player , D VD player , CD pl ayer ,
MD deck, Blu-ray disc
recorder, hard disc recorder,
PSX, or satellite tuner.

T Control

buttons

After pressing AMP MENU
(L), TOP MENU/GUIDE
(U), or A V MENU (V), press
the control bu tt on V, v, B or b
to select the settings. When you
press TOP MENU/GUIDE or
AV MENU, press the control
button to enter the selection.

U TOP MENU/

GUIDE

Press to display the
–DVD title.
–menu or on-screen guide of

the satellite tuner, Blu-ray
disc recorder, hard disc
recorder, or PSX on the T V

screen.
Then, use the co ntrol bu ttons to
perform menu operation.

10

STR-K880/K900

Name Function

V AV MENU Press to display the menus of the

VCR, DVD player, satellite
tuner, Blu-ray disc recorder,
hard disc recorder, or PSX on the
TV screen. Then, use th e contro l
buttons to perform menu
operations.

W H

a)

Press to start playback of the
VCR, CD player, VCD player,
LD player, DVD player, MD
deck, DAT deck, tape deck, Blu­ray disc recorder, hard disc
recorder, or PSX.

X X Press to pause playback or

recording of the VCR, CD
player, VCD player, LD player,
DVD player, MD deck, DAT
deck, tape deck, Blu-ray disc
recorder, hard disc recorder, or
PSX. (Also starts recording with
components in recording
standby.)

Y m/M Press to

–search tracks in the forward/

backward direction of the CD
player, VCD player, DVD
player, LD player, MD deck,
Blu-ray disc recorder, hard
disc recorder, or PSX.

–fast forward/rewind of the

VCR, DAT deck, or tape deck.

D. TUNING Press to enter dire ct tun ing

mode.

ANT Press ALT (G) and then press

ANT to select the signal to be
output from the antenna terminal
of the VCR or sat ellite tuner (TV
signal or video signal).

CLEAR Press ALT (G) and then press

CLEAR to
–clear a mistake wh en you pr ess

the incorrect numeric button.

–return to continuous playback,

etc. of the CD pla yer, DVD
player, Blu-ray disc recorder,
PSX, or satellite tuner.

Name Function

Z TUNING +/– Press to scan a station.

./> Press to skip tracks of the

VCR, CD player, VCD player ,
LD player, DVD player, MD
deck, DAT deck, tape deck,
Blu-ray disc recorder, hard
disc recorder, or PSX.

2CH Press to select 2CH STEREO

mode.

A.F.D. Press to select A.F.D. mode.
MOVIE Press to select sound fields

(MOVIE).

DUAL MONO Press to select the language

you want during digital
broadcast.

AUDIO Press to change the sound to

Multiplex, Bilingual or Multi
channel TV sound of the TV,
VCR, DVD player, satellite
tuner, Blu-ray disc recorder,
hard disc recorder, or PSX.

ANGLE Press to select the viewing

angle or change the angles of
the DVD player or Blu-ray
disc recorder.

JUMP/TIME Press to

–toggle between the previous

and the current channels of
the satellite tune r, TV, or
Blu-ray disc recorder.

–show the time or displa y the

playing time of a disc, etc. of
the CD player, MD deck,
VCD player, or DVD player.

MEMORY Press MEMORY to store a

station.

SUBTITLE Press AL T (G) and then press

SUBTITLE to change the
subtitles of the DVD player.

ENTER Press AL T (G) and then press

ENTER to enter the value
after selecting a channel, disc
or track using the numeric
buttons.

11

STR-K880/K900

a)

The MASTER VOL +, TV VOL +, TV CH + and
H buttons hav e tactile dots. Use the ta ctile dots as
references when operating the receiver.

Notes

So me functions explained in this section may not

work depending on the model.

The above expla nation is intended to s erve as an

example only. Therefore, depending on the
component, the above operation may not be
possible or may operate differently than described.

The AUX and 12 buttons on the remote are not

available for receiver operation.

Name Function

Numeric
buttons

Press AL T (G) and then press
the numeric buttons to
–preset/tune to preset

stations.

–select track numbers of the

CD player, VCD play er , LD
player, DVD player, MD
deck, DAT deck, or tape
deck. Press 0/10 to select
track number 10.

–select channel numbers of

the TV , VCR, satellit e tuner,
Blu-ray disc recorder, hard
disc recorder, or PSX.

>10/11 Press ALT (G) and then press

>10/11 to select track
numbers over 10 of the CD
player, VCD player, LD
player, MD deck, tape deck,
TV, VCR, Blu-ray disc
recorder, hard disc recorder,
PSX, or satellite tuner.

wj Input buttons Press one of the buttons to

select th e component you
want to use. When you pr ess
any of the input buttons, the
receiver turns on. The buttons
are factory assigned to control
Sony components as foll ows.
You ca n program the remote
to control non-Sony
components following the
steps in “Programming the
remote”.

*The AUX button is not available

for receiver operation.

Button Assigned Sony

component

VIDEO1 VCR (VTR mode 3)
VIDEO2 VCR (VTR mode 1)
VIDEO3 VCR (VTR mode 2)
DVDDVD player
MD/TAPE MD deck
SA-CD/CD Super Audio CD/CD

player
TUNER Built-in tuner
AUX* Not assigned

Name Function

wk TV ?/1 Press to turn the TV on or off.
wl RM SET UP Press to set up the remote .

12

STR-K880/K900

FACTORY PRESET MODE

All preset contents are reset to the default setting.

Procedure:

1. While depressing the SPEAKERS (OFF/A/B/A+B) and the
MOVIE buttons simultaneously, press the power ?/1 button
to turn on the main power.

2. The message “FACTORY” appears and the present contents
are reset to the default values. (5 second)

AM CHANNEL STEP 9 kHz/10 kHz
SELECTION MODE

Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.

Procedure:

1. Set the FUNCTION to AM. Turn off the main power.

2. While depressing the TUNING MODE button, press the
power ?/1 button to turn on the main power.

3. Either the message “9 k STEP” or “10 kSTEP” appears. Select
the desired step.

FLUORESCENT INDICATOR TUBE TEST MODE

All fluorescent segments are tested. When this test is acti v ated, all
segments turn on at the same time, then each segment turns on one
after another.

Procedure:

1. While depressing the TUNING MODE and the DISPLAY
buttons simultaneously, press the power ?/1 button to turn
on the main power.

2. All segments turn on.

3. Turn the INPUT SELECTOR dial.

4. Turn the INPUT SELECTOR dial once again.

5. Turn the INPUT SELECTOR dial once again. All segments
turn off.

6. Every turning of the INPUT SELECTOR dial turns on each
segment 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.

Procedure:

1. While depressing the 2CH button, press the power ?/1
button to turn on the main power.

2. The message “SF. CLR.” appears and initialization is
performed. (5 second)

SOFTWARE VERSION DISPLAY MODE

The software version is displayed.

Procedure:

1. While depressing the SPEAKERS (OFF/A/B/A+B) and the
DISPLAY buttons simultaneously, press the power ?/1
button to turn on the main power.

2. The model name, destination and the software version are
displayed. (10 second)

KEY CHECK MODE

Button check

Procedure:

1. While depressing the SPEAKERS (OFF/A/B/A+B) and the
2CH buttons simultaneously , press the power ?/1 button to
turn on the main power.
“REST 13” appears.

2. Every pressing of any button other than ?/1 counts down
the buttons. The buttons which are already counted once are
not counted again.

3. When all buttons are pressed “REST 00” appears.

CHANGE COMMON MODE

This mode is command mode changed to AV 1 or AV2.

Procedure:

1. While depressing the INPUT MODE button, press the power

?/1

button to turn on the main power.

2. Either the message “C.MODE.AV 1” or “C.MODE.AV 2”
appears. (3 second)

SHIPMENT MODE

All preset contents are reset to the default setting.

Procedure:

1. While depressing the SPEAKERS (OFF/A/B/A+B) and the
MUSIC buttons simultaneously, press the power ?/1 but-
ton to turn on the main power.

2. “CLEARED” appears and switch off the set.

PROTECTOR

Procedure:

1. While depressing the TUNING MODE and the A.F.D. but­tons simultaneously, press the power ?/1 button to turn on
the main power.

2. “ PROT. EVER” appears. (3 second)

DECODE AUTO ALL

Procedure:

1. While depressing the TUNING MODE and the MOVIE
buttons simultaneously, press the power ?/1 button to turn
on the main power.

2. “DEC. TEST” appears. (10 second)

L

SW

CR

SL S SR

SBL SB SBR

LFE

SP A
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

LSWR

S

SB

LFE

SP A
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

C

SL SR

SBL SBR

SP A
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

SECTION 2

TEST MODE

13

STR-K880/K900

VACS CONTROL

Procedure:

1. While depressing the TUNING MODE and the MUSIC
buttons simultaneously, press the power ?/1 button to turn
on the main power.

2. “VACS OFF” appears. (10 second)

SWAP ALL MODE

Procedure:

1. While depressing the SPEAKERS (OFF/A/B/A+B) and the
A.F .D. buttons simultaneously, press the power ?/1 button
to turn on the main power.

2. “SWP.ALL” appears. (No change while displayed.)

DCAC FACTORY TEST MODE

DCAC Factory Test mode have two stages:

1. DCAC DSP Data Line Checking

2. DCAC AUTO CAL MIC board Checking

Factory Test System Setup

1. When power off :
Press the three buttons TUNING + + MOVIE +
?/1 .
“DCAC[]FTM” appears.
Afterward, press the TUNING MODE to start DCAC factory
test mode.

1.DCAC DSP Data Line Checking

After press the TUNING MODE , DCAC Factory test mode will
start, below display will show:

“DCAC[][][]x” x = 1, 2, 3, 4
If there is error happen, below display will show:

“ERR[]SD0x” x = 1 → D1501 or R1530 or C1512 problem

x = 2 → D1502 problem
x = 3 → D1503 problem
x = 4 → D1504 problem

2.DCAC AUTO CAL MIC board Checking

Connect front left speaker of the receiver and AUTO CAL
microphone. Turn MASTER V OLUME jog, there will be test tone
sound output from front left speaker, and the display will change
accordingly.

“AD[]-[]xxx” xxx = 0 to 255 (depends on loudness of test tone)

DSP Data Line

Check

Start Pass Pass

Auto Cal Mic

Check

END

SPK Front Left

DCAC MIC

Receiver

14

STR-K880/K900

SECTION 3

DIAGRAMS

For Schematic Diagrams.
Note:

• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics 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

•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.

•Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

F : FM
J : ANALOG
c : DIGITAL
I : VIDEO

•Abbreviation
AUS:Australian model.
CND : Canadian model.
E51 : Chilean and Peruvian models.
SP : Singapore model.
SP6 : Singapore and Malaysia models.

For Printed Wiring Boards.
Note:

• X : parts extracted from the component side.

• a: Through hole.

• f : internal component.

• : Pattern from the side which enables seeing.

• Indication of transistor.

Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.

Note:

The components identi­fied by mark 0 or dot­ted line with mark 0 are
critical for safety.
Replace only with part
number specified.

Note:

Les composants identifiés
par une marque 0 sont cri­tiques pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.

C

B

These are omitted.

E

Q

B

These are omitted.

CE

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)

Ver. 1.1

1515

STR-K880/K900

STR-K880/K900

•Waveforms
– DIGITAL Board –

1

IC1501 9 (MCLK1)

1 V/DIV, 40 ns/DIV

72 ns

3.4 Vp-p

2

IC1101 id (X1)

1 V/DIV, 20 ns/DIV

41.6 ns

4.2 Vp-p

3

IC1301 ws (XIN)

1 V/DIV, 40 ns/DIV

81 ns

4.4 Vp-p

• Circuit Boards Location

DIGITAL board

MAIN board

POWER board

ADCC board

HEADPHONE board

STANDBY board

AC SELECT board (E51 only)

SPEAKER board

SPEAKER B board

HDMI board

VIDEO board

DISPLAY board

VIDEO 3 board

1616

STR-K880/K900

STR-K880/K900

3-1. BLOCK DIAGRAM – MAIN SECTION –

AUDIO IN

AUDIO IN

AUDIO IN

PROCESSOR

INCL

26

88

OUT L

INBL

24

INGL

34

85

OUT SL

86

OUTC

81

OUT SW

DATA

60

CLK

59

59

VOL_CLK

SDA

SCL

60

VOL DATA LATCH

SYSTEM CONTROL

IC1101(1/2)

IC203

VIDEO AMP

IC1601,1602

S/P CONV.

IC807

+5V REG

DVD

IN

COAXIAL

VIDEO 2

IN

J1301

35

62

J298(1/2)

IC1303

DIGITAL AUDIO
I/F RECEIVER

IC1301

L

DISPLAY
/POWER
SECTION

DIN2

5

DO

35

DI

36

CLK

38

CE

37

ERROR

34

XSTATE

17

XMODE

48

13

CK OUT

20

XMCK

14

BCK

15

LRCK

16

DATAO

IC1303

X1301

12.288MHz

AUDIO DSP

IC1501

KFSI0

SYSCLK

LRCK

BCK

DOUT

22

16

13

14

15

SDI2

30

HCLK

34

HCS

36

HACN

32

PM

113

XRST

2

23

SDO1

24

SDO2

25

SDO3

BCKI2

29

LRCKI2

28

LRCKI1

15

BCKI1

17

IC1502

SRAM

AUDIO CODEC

IC1452

IC1403

AD CONVERTER

IC1401

SCKI

38

RST

37

ML

36

MC

35

MDI

34

MDO

33

10

VOUT5

BCK

40

LRCK

41

DATA3

47

DATA1

45

26

SDO4

DATA4

31

DATA2

46

14

VOUT1

12

VOUT3

11

VOUT4

ANALOG SOUND

44

ROUTAL

SL

AOUTL

41

INCL

49

52

51

56

SL

C

83

OUTSBL

SBL

INCSL

INCC

INCSW

A

98 97 95 96 99 100 94 1

6

13

89

DO

DI

CLK

CE

ERROR

XSTATE

CKSEL1

DATA0

3

BST

SW4

V1

D595_LAT

20

HCLK

4

HCS

5

HACN

7

PM

92

BST SEL

6

XRST

10

PCM1608/1800_RST

12

PCM1608_ML

13

PCM1608_MC

14

PCM1608_MDI

15

PCM1608_MDO

5 6

29 30

RELAY
DRIVE

Q560

J404 (1/2)

VIDEO 1

IN

J402

SA-CD/CD

VIDEO 2

AUDIO

MD/TAPE

DVD

OPTICAL

IN

IC1351

DIN0

3

DIN1

4

VIDEO 1

IN

OPTICAL

IN

IC1354

22 21

XIN XOUT

12 9

93

XMODE

CKSEL1

47

GP9

68

HD OUT

35

HD IN

33

2

GP9

18

HD OUT

19

HD IN

MCLK1

MCLK2

X1502

13.9MHz

14

SCK OUT

1

LIN

6

RST

20

BCKO

19LRCKO

18 SDI1

24AUDIO

GP8

69

EXLOCK

59

INIL

38

TN1

TUNER PACK

FM

75 W

COAXIAL

AM

R-CH

ST-DI

ST-DO

CLK

CE

STEREO

TUNED

MUTING

FM

AM

R CH

L CH

TUNER +10V10V

DO

73

SLATCH

74

TUNER-DATA

17

T.SERIAL CLK

16

STEREO

76

TUNED

75

MUTE

78

OPTICAL

DIGITAL

D1301

IC401

SDA SCL

EEPROM

IC1131

IC402

WOOFER AMP

SW RY

70

IN

INFL

32

INDL

28

INEL

30

J403 (1/2)

VIDEO 1

J404
(2/2)

AUDIO OUT

46

ROUTBL

MD/TAPE

J402
(2/2)

OUT

RY560

AUDIO OUT

J309

SUB WOOFER

5 7

14

86

SW1

D595_DATA

88

D595_OE

4

SW3

10

87

SW2

D595_CLK

VIDEO IN

J201
(1/2)

J200
(1/2)

VIDEO 1

VIDEO IN

VIDEO 2

VIDEO IN

DVD

9

V3

VIDEO

J298
(2/2)

VIDEO 3 IN/

PORTABLE AV IN

5

V2

3

DVD

1

M.OUT

MONITOR

+ V

J201(2/2)

VIDEO OUT

15

V.OUT

16

VCC

VIDEO 1

J200(2/2)

VIDEO OUT

IC804

-5V REG

- V

8

VEE

IC1503

SELECTOR

1

6

556

2

A

B

BSTSY

31

IC1405
57

IC1404
31

IC1404
57

16

VOUT7

54

INCSB

IC1406
57

J401

SUB WOOFER

CENTER

FRONT

SURROUND

ANTENNA

MULTI CH IN

INDL

12

INDL

17

INDL

13

INDL

10

J301
(1/2)

Y

P

R/CR

/R-Y

P

B/CB

/B-Y

Y

DVD

IN

VIDEO 2

IN

COMPONENT

VIDEO

P

R/CR

/R-Y

P

B/CB

/B-Y

CH1 IN2

3

CH2 IN2

9

CH3 IN2

14

CH1 IN3

5

CH2 IN3

11

CH3 IN3

12

SW1 2SW2

4

CH1 OUT

22

CH2 OUT

20

CH3 OUT

18

Y

P

R/CR

/R-Y

P

B/CB

/B-Y

MONITOR

OUT

CONPONENT

VIDEO

J301
(2/2)

VIDEO AMP

IC304

(Page 17)

FL_DATA

FL_CLK

B

DISPLAY
/POWER
SECTION

(Page 17)

CN5001

CN5002

CN5003

DVD IN

HDMI

HDMI

VIDEO 2 IN

MONITOR OUT

OEB

42

2,3,5,
6,8,9,
11,12,
14,15,

80

62-64,
67,68,
70,71,
73,74,
76,77

25,26,
28,29,
31,32,
34,35,
38-40

S1

21

IC5004

INPUT

DET

1

5

7

3

IC5005

INPUT

SELECT

3

1

4

6

IC5006

+5.8V REG

IC5003

+3.3V REG

+3.3V+8V

2 4 1 3

IC5002

+5V REG

IC5001

HDMI

SELECT

5 4

1

1

VIDEO 3 IN/

PORTABLE AV IN

57

ADCC_DSP_INT

D1501-1504

• Signal Path

: FM

: ANALOG

: DIGITAL

: VIDEO

• R-CH is omitted due to same as L-CH.

1717

STR-K880/K900

STR-K880/K900

3-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –

• R-CH is omitted due to same as L-CH.

IN2

8

12

+V OUT2

POWER AMP

IC701

POWER AMP

IC601

9

NF2

LIMITER

Q701,702

11

-V OUT2

IN2

12

+V OUT2

9

NF2

11

-V OUT2

BOOSTER

Q703

BOOSTER

Q704

CURRENT

DETECT

Q705,706

AF POWER
PROTECT

Q740

LIMITER

Q651,652

BOOSTER

Q653

BOOSTER

Q654

CURRENT

DETECT

Q655,656

IN2

8

12

+V OUT2

POWER AMP

IC501

9

NF2

LIMITER

Q501,502

11-V OUT2

BOOSTER

Q503

BOOSTER

Q504

CURRENT

DETECT

Q505,506

2

+V OUT1

5

NF1

LIMITER

Q571,572

3-V OUT1

BOOSTER

Q533

BOOSTER

Q534

CURRENT

DETECT

Q535,536

D721

PROTECT

SWITCH

Q722,723,725

RELAY
DRIVE

Q790

RY791

RELAY
DRIVE

Q710

RY701

D1110

RELAY
DRIVE

Q610

RY601

RY600

D1108

RELAY
DRIVE

Q800

RELAY
DRIVE

Q550

RY501

D1107

D1111

L

R

SR

SL

C

R-CH

L

RR-CH

R-CH

R-CH

PHONES

TM601

TM602

61

PROTECTOR

62

HP RY

66

FRONT RY

69

REAR RY

68

C/SB RY

67

SP_B_RY

RV102

ENCODER

3 1

VOL_ENC(B)64VOL_ENC(A)

65

POWER KEY

56

?/1

S100

77

RSTX

48

STOP

54

SIRCS

72

BRIGEABLE RY

63

FUSE DETECT

REMOTE
CONTROL
RECEIVER

1

IC102

D910-913

AC
IN

T902

RY901

D915

F901

D914

RELAY
DRIVE

Q901

D920-923

23

VCC5

84

VCC3

-7V

REG

3 2

+7V
REG

1 3

AUDIO

+7V

IC801

IC802

POWER RY

58

RELAY

+B

D805-808

82 83

X0

X1

X1101

24MHz

F1

F2

L

SLSL

C

A

IN1

6

SBL

J791

FLUORESCENT

INDICATOR TUBE

FL101

FL_DATA

FL_CLK

9

FL_LAT

7

DIN8CLK9STB

14 29

SEG1-16

42 31

GRID1-12

F1 F2

FL DRIVE

IC100

ADCC

38

S108-111,115

FUNCTION

KEY

A/D1

39

FUNCTION

KEY

A/D2

40

S101-107

SYSTEM CONTROL

IC1101(2/2)

• Signal Path

: FM

AF POWER
PROTECT

Q640

AF POWER
PROTECT

Q540

AF POWER
PROTECT

Q580

IC691

21

FRONT A

FRONT B

SURROUND

IC691

57

55

HP DETECT

BUFFER

IC101

35

AVCC

+3.3V

REG

3 1

IC1904

AUDIO

-7V

+10V

REG

3 1

TUNER

+10V

IC1902

+3.3V

REG

3 1

TUNER

+3.3V

IC1071

RY801

T901

Q921

AC DET

1 2

IC1111

D802

R803

+B

-B

-B

SWITCH

Q691,692

RELAY
DRIVE

Q809

VOLTAGE

SELECT

S901

-20V REG

Q801

FL101

-20V

POWER AMP

-B

+5V

REG

3 1

IC1031

+5V

+2.5V

REG

5

+2.5V

+3.3V

REG

2

4

IC1901

+3.3V

+5V

REG

3 1

IC1001

AUDIO

+5V

SPEAKERS

IMPEDANCE USE 6-16Ω

MASTER
VOLUME

RV101

ENCODER

3 1

ENC_B32ENC_A

31

INPUT

SELECTOR

8

RESET

5 1

IC2000

AMP

+3.3V

(STBY)

MAIN

SECTION

TM501

K880

CENTER

SB

SURROUND

BACK

(Page 16)

B

MAIN

SECTION

(Page 16)

AUTO CAL MIC

J2000

RY802 RY803

AEP, UK

CND

E51

EXCEPT
CND

EXCEPT
E51

1818

STR-K880/K900

STR-K880/K900

3-3. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE A) –

:Uses unleaded solder.

• See page 15 for Circuit Boards Location.

IC1301

IC1303

IC1452

IC1501

IC1502

IC1602

IC1601

IC1503

IC1101

IC1131

IC1406

IC1405

IC1404

IC1403

IC1401

IC1111

AEP,UK

EXCEPT AEP,UK

EXCEPT
AEP,UK

AEP,UK

12

A

B

C

D

E

34567

• Semiconductor
Location

Ref. No.

Location

D1001 B-6
D1301 C-2
D1302 C-1
D1501 D-6
D1502 D-6

IC1101 D-5
IC1111 C-6
IC1131 E-5
IC1301 B-2
IC1303 C-2
IC1401 E-2
IC1403 E-3
IC1404 E-3
IC1405 E-4
IC1406 E-5
IC1452 D-2
IC1501 D-3
IC1502 C-3
IC1503 D-4

1919

STR-K880/K900

STR-K880/K900

3-4. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE B) –

:Uses unleaded solder.

• See page 15 for Circuit Boards Location.

MAIN

BOARD

CNP911

(Page 25)

MAIN

BOARD

CNP913

(Page 25)

A

B

DISPLAY

BOARD

CNS100

(Page 29)

C

MAIN

BOARD

CNP500

(Page 25)

G

MAIN
BOARD
CNP501

(Page 25)

H

STANDBY

BOARD
CNP903

(Page 31)

D

MAIN
BOARD
CNP912

(Page 25)

E

VIDEO

BOARD

CNS203

(Page 37)

F

IC1031

IC1901

IC1904

IC1071

IC1001

IC1902

IC1354

IC1351

1

1

7

5

1

1

1

2

3

3

3

4

5

for
FLASH
PROGRAMMING

1

6

23

7

10

AEP,UK

AEP,UK

AEP,UK

TUNER UNIT

VIDEO 1

IN

VIDEO 2

IN

DVD IN

COAXIAL

OPTICAL

DIGITAL

K880

17

16

1

3

3

3

3

1

1

3

1

1

12

A

B

C

D

E

345678

• Semiconductor
Location

Ref. No.

Location

D1003 D-6
D1004 D-6
D1107 C-3
D1108 C-3
D1110 C-3
D1111 C-3
D1503 D-6
D1504 D-6

IC1001 E-6
IC1031 B-1
IC1071 B-4
IC1351 C-7
IC1354 B-7
IC1601 C-5
IC1602 C-5
IC1901 B-2
IC1902 A-4
IC1904 B-3

2020

STR-K880/K900

STR-K880/K900

3-5. SCHEMATIC DIAGRAM – DIGITAL BOARD (1/5) –

• See page 15 for Waveform. • See page 41 for IC Block Diagram.

C1303

C1305

R1318

R1313

R1314

R1355

R1356

R1357

R1358

R1359

R1354

R1351

X1301

R1310

C1313

R1316

R1315

C1004

R1312

C1914

JR1202

C1005

C1306

R1301

R1306

IC1354

IC1351

C1354

C1351

C1357C1355

C1252 C1253

C1308

TN1

C1064

JR1005

R1302

JR1302

JR1303

R1323

C1362

TP1003

FB1302

R1305

R1308

C1312

R1319

C1310

R1311

R1360

FB1305

TP1004

R1307

C1314

FB1306

C1359

C1358

C1361

R1261

R1260

R1252 R1251

JR1020

R1321

C1315

C1302

C1301

C1309

C1360

JR1511

C1304

R1304

R1303

C1913C1063

IC1071

D1302

IC1902

CNS508

J1301

JR1207

D1003

D1004

IC1301

C1251

JR1019

D1301

IC1303

R1362

R1309

100

100

0

TORX147L

TORX147L

0.1

0.1

0.1

0.1

10k

100

10k

75

1k

22k

560k

100

12.288MHz

1M

100p

100

100

0.1

100

47

16V

0.1

47

16V

5.6k

22

1p22

25V

0.1 0.1

0.1

47
16V

0

4.7k

0

0

10k

0.01

680

100

0.1

0

18p

100

100

100

0.1

1000

6.3V

0.1

0.1

1k

1k

39k 39k

0

0

0.1

0.01

0.1

18p

47p

0.01

100

33k

0.10.1

TA78033LS

1SS355-TE-17

TA7809LS

0

1SS367-T3SONY

1SS367-T3SONY

LC89056W-E

0.1

0.1

1SS355TE-17

TC7WU04F(TE12R)

100

100

2121

STR-K880/K900

STR-K880/K900

3-6. SCHEMATIC DIAGRAM – DIGITAL BOARD (2/5) –

• See page 15 for Waveform. • See page 42 for IC Block Diagram.

R1502

R1503

R1504

R1505

R1506

R1507

R

1

5

08

R

1

5

0

9

R1511

TP1005

T

P

1

0

0

8

T

P

1

0

09

T

P

1

0

1

0

TP1011

TP1012

T

P

1

0

1

5

C1516

C1518

R

1

5

1

2

R1515

R1514

R

1

5

55

R

1

5

4

1

R1574

R1573

R1572

R1571

R1570

X1502

R1523

TP1018

R

1

5

5

7

R1556

C1525

FB1502

FB1501

C1501

C1503

C1504

C1505

C1506

C1508

C1513

C1514

C1520

C1515

C1517

C1509

C1511

C1502

C1521

C1522

JR

1

0

08

C1507

C1510

R1513

R1530

C1519

IC1501

FB1503

D

15

0

1

D

1

5

0

2

D

1

5

0

3

D

1

5

0

4

IC1502

JR1016

IC1503

RB1504

RB1502

RB1501

RB1506

RB1503

RB1508

RB1507

RB1500

R1501

R1510

100

220

100

100

100

100

10

0

1

00

100

0.1

0.1

1

k

1M

10k

2

2

0

22

0

10k

10k

10k

10k

10k

13.9MHz

220

22

0

100

470
10V

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

470
10V

470
10V

0.1

0.1

0.1

27p

27p

0

0.1

0.1

10k

100k

0.1

CXD9718BQ

1

S

S

3

6

7

-T

3

S

O

N

Y

1

S

S

3

6

7

-T

3

S

O

N

Y

1

S

S

3

6

7

-T

3

S

O

N

Y

1

S

S

3

6

7

-T3

S

O

N

Y

IS61WV6416BLL

-12TLI

0

TC7WH157FU (TE12R)

100

100

100

100

100

100

100

100

100

100