Sony STR-KSL900W Service Manual

STR-KSL900W

SERVICE MANUAL

Ver 1.0 2004.07

STR-KSL900W is the receiver section in HT-SL900W.

This receiver incorporates Dolby* Digital and Pro Logic Surround and the DTS** Digital Surround System. * 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.

AEP Model

Amplifier section

Power Output (6 ohms 1 kHz, THD 0.7%)

(6 ohms 1 kHz, THD 10%)

1)

Measured under 230 V AC, 50 Hz

2)

Depending on the sound field settings an d the source, there may be no sound output.

Inputs (Analog) TV/SAT, DVD, VIDEO Sensitivity: 500 mV

Inputs (Digital) DVD (Coaxial) Sensitivity: –

DVD, TV/SAT (Optical) Sensitivity: –

1)

FRONT2): 40 W/ch

2)

CENTER SURR

1)

FRONT2): 60 W/ch CENTER SURR

Impedance: 50 kiloohms

Impedance: 75 ohms

Impedance: –

: 40 W

2)

: 40 W/ch

2)

: 60 W

2)

: 60 W/ch

SPECIFICATIONS

Outputs (Analog) SUB WOOFER Voltage: 2 V

Impedance: 1 kiloohms

Reproduction frequency range:

28 – 20,000 Hz

Tone Gain levels ±6 dB, 1 dB step

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 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

General

Power requirements 230 V AC, 50/60 Hz Power consumption 130 W Power consumption (during standby mode)

0.3 W

Dimensions (w/h/d) (Approx.)

430 × 352 × 64 mm including projecting pa r ts and controls

Mass (Approx.) 5.5 kg

Design and specifications are subject to change without notice.

9-879-101-01

FM STEREO/FM-AM RECEIVER

Sony Corporation

Audio Group Published by Sony Engineering Corporation

STR-KSL900W

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.

GENERAL

List of button locations and reference pages

STR-KSL900W

This section is extracted from instruction manual.

How to use pages 42

Use this page to find the location of buttons that are mentioned in the text.

INPUT SELECTOR qd (20, 21, 22)

Name of button/part Reference page

Main unit

ALPHABETICAL ORDER

Display 2 (23) DVD (indicator) 5 (20) INPUT SELECTOR

qd

(20, 21,

22) IR (receptor) 3 (33, 39) MASTER VOLUME qf (19, 20,

38)

Remote button description

TV ?/1 AV ?/1

1 2

3

4 5

6

7

8

9

q;

qa

qs

SYSTEM STANDBY

VIDEO DVD

DUAL MONO

FM MODE

123

ANGLE

AUDIO

456

SWAP JUMP

TIME

789

MEMORY SHIFT

>

.

0/10 >10/11 ENTER/12 TUNING DISC ALT

M

m

ANT

CLEAR

X

H

TOP MENU/

GUIDE

F

G

ENTER

f

DISPLAY

RETURN/EXIT

TV VOL TV CH

SAT TV

AUX

;

PL/PL A.F.D.

D.TUNING

SUBTITLE

-

SEARCH MODE

AV MENU

g

O

TV/

VIDEO

WIDE

MUTING qs (20, 38) PRESET TUNING + 9 (22) PRESET TUNING – 8 (22) SOUND FIELD qa (30) TUNER (indicator) 7 (20) TV/SAT (indicator) 6 (20) VIDEO (indicator) 4 (20)

?/1

SLEEP

ea e;

wl

TUNER

wk wj

SOUND

FIELD

wh

wg

PRESET/

CH/D.SKIP

wf wd ws

x

MUTING

MASTER

VOL

wa

w; ql

qk

MAIN

MENU

TEST TONE

qj qh

Remote Button

ANGLE 6 DVD player Selects viewing angle or

ANT 8 VCR Selects output signa l

AUDIO 6 TV/VCR/

AUX 4 Receiver To listen to an audio

AV MENU qaVCR/

AV ?/1 e;TV/VCR/

CLEAR 8 DVD player Press if you make a

DISC wa CD player Selects a disc directly

DISPLAY qaTV/VCR/

D.TUNING 6Receiver Enter s dire c t tuni ng

qg

qd

qf

The tables below show the settings of each button.

Remote Button

A.F.D. wh Receiver Selects A.F.D. AUTO. ALT ws Remote When ALT button lights

Operations Function

up, it changes the remote key function to activate those buttons with orange printing.

DUAL MONO 6

DVD 2 Receiver To watch DVD.

on number

r

RR

NUMBERS AND SYMBOLS

?/1 (power) 1 (14, 19, 21) ; PLII q; (27)

f

Operations Function

changes the angles.

from the antenna terminal: TV signal or VCR program.

Changes the sound to

DVD player

Multiplex or Bilingual or Multi Channel TV Sound.

equipment.

Displays menu. satellite tuner/ DVD player

Turns the audio and CD player/ DVD player

video components on or

off.

mistake when you press

the numeric button or

press to return to

continuous play etc.

(multi-disc changer

only).

Selects information DVD player

displayed on the TV

screen.

mode. Receiver Selects the lang uage

you want during digital

broadcast.

Remote Button

ENTER qa Receiver/

Operations Function

Enters the selection. VCR/ satellite tuner/ DVD player

ENTER/12 wdTV/VCR/

Enters the selection. satellite tuner

FM MODE 6Receiver Selects FM monaural or

stereo reception.

JUMP 6 TV Toggles between the

previous and the current

channels.

MAIN MENU qj

MASTER VOL +/–

Receiver Selects the menu of the

receiver. Receiver Adjusts the master

volume of the receiver.

qk

MEMORY 7Receiver Stores the radio stations.

MUTING qlReceiver Mutes the sound from

the receiver.

PRESET/ ReceiverSelects preset stations. CH/D.SKIP

+/– wf

RETURN/ EXIT/O

TV/VCR/

Selects preset channel. satellite tuner

CD player/ DVD player

Skips discs (multi-disc

changer only). DVD player Returns to the previous

menu or exits the menu.

qa Satellite tuner Exits the menu. SAT wk Receiver To watch satellite tuner. SEARCH

MODE wa

DVD player Selects searching mode.

Press to select the unit

for search (track, inde x,

etc.)

3

STR-KSL900W

Remote Button

SHIFT wd Receiver Selects a memory

SLEEP ea Receiver Activates the sleep

SOUND FIELD +/–

wg

SUBTITLE 6DVD player Changes the subtitles.

SWAP* 6 TV Swaps the small and

SYSTEM STANDBY (Press AV

?/1 e; and ?/1 ea at the

same time) TEST TONE qgReceiver Outputs test tone.

TIME 6 CD player/

TOP MENU/ DVD player Displays DVD title. GUIDE qa Satellite tuner Displays guide menu. TUNER wj Receiver To listen to radio

TUNING –/+ 8

TV wl Receiver To watch TV

TV CH +/– qdTV Selects preset TV

*Only for Sony TVs with the picture-in-pictur e

function.

Operations Function

page for presetting radio stations or tuning to preset stations.

function and the duration which the receiver turns off automatically.

Receiver Selects sound fields.

large picture.

Receiver/ TV/VCR/ satellite tuner/ CD player/ DVD player

DVD player

Receiver Scans radio stations.

Turns off the receiver and other Sony audio/ video components.

Shows the time or displays the playing time of disc, etc.

programs.

channels.

Remote Button

TV/VIDEO qhTV Selects input signal:

TV VOL +/– qs

TV ?/1 1 TV Turns the TV on or off. VIDEO 3 Receiver To watch VCR. WIDE qf TV Selects the wide

1-9 6 and 0/10 7

>10/11 7 CD player Selects track numbers

-/-- wa TV Select s t he channel

?/1 ea Receiver Turns the receiver on

;PL/PLII 5Receiver Selects DOLBY PL,

V/v qa Receiver Selects a menu item. B/b qa Receiver Adjusts or changes the

V/v/B/b qa VCR/

Operations Function

TV input or video input.

TV Adjusts the volume of

Receiver Use with SHIFT to

CD player Selects track numbers.

TV/VCR/ satellite tuner

satellite tuner/ DVD player

the TV.

picture mode.

preset radio station or tuning to preset stations and with D.TUNING for direct tuning.

0/10 selects track 10. Selects channel

numbers.

over 10.

entry mode, either one or two digit.

or off.

PLII MOV or PLII MUS.

setting. Selects a menu item.

Press to enter the selection.

Remote Button

./> 7VCR/

m/M 8CD player/

H 9 VCR/

X q; VCR/

x w; VCR/

Operations Function

CD player/ DVD player

DVD player

VCR Fastforwards or rewinds.

CD player/ DVD player

Skips tracks.

Searches tracks in the forward or backward direction.

Starts playblack.

Pauses playblack or record. (Also starts recording with components in recording standby.)

Stops playback.

4

SECTION 2

TEST MODE

STR-KSL900W

FACTORY PRESET MODE

All preset contents are reset to the default setting.

Procedure:

1. While pressing the PLII and [PRESET TUNING +] buttons, press the I/1 button to turn on the main power.

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

ALL CLEAR MODE

All preset contents are cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair.

Procedure:

1. While pressing the PLII and [PRESET TUNING --] buttons, press the I/1 button to turn on the main power.

2. The message “CLEARING !” appears and the memories are reset to the default values.

3. When done, the message “CLEARED” appears.

FL CHECK MODE

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

Procedure:

1. While pressing the [MUTING] and [PRESET TUNING --] buttons, press the I/1 button to turn on the main power.

2. All segments and all LEDs turn on.

3. Press the [INPUT SELECTOR] button.

4. Half of segments and [VIDEO], [TUNER] LEDs turn on.

5. Press the [INPUT SELECTOR] button once again.

6. Others half of segments and [DVD], [TV/SAT] LEDs turn on.

7. Press the [INPUT SELECTOR] button once again.

8. All segments and all LEDs turn off.

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 pressing the [SOUND FIELD] button, press the button to turn on the main power.

2. The message “SF. CLR.” appears and initialization is performed.

I/1

RDS AUTOBETICAL MODE

Procedure:

1. While pressing the [INPUT SELECTOR] button, press the I/1 button to turn on the main power.

2. The message “AUTO-BET” appears and scans and stores all the FM and FM RDS stations in the broadcast area.

3. When done, the message “FINISH” appears.

VERSION MODE

When this mode is used, the model, the destination and the software version number are displayed.

Procedure:

1. While pressing the [SOUND FIELD] and [PRESET TUNING --] buttons, press the I/1 button to turn on the main power.

2. The model, the destination and the software version number appear.

KEY CHECK MODE

This mode is used to check the key.

Procedure:

1. While pressing the [MUTING] and [INPUT SELECTOR] buttons, press the I/1 button to turn on the main power.

2. The message “REST 06” appears.

3. Every pressing of any button other than the I/1 button counts down the buttons. The b uttons which are already counted once are not counted again.

4. When all buttons are pressed, the message “REST 00” appears.

PROTECTOR AUTO OFF MODE

When this mode is used, a state when a protector operates first is displayed.

Procedure:

1. While pressing the [INPUT SELECTOR] and [PRESET TUNING +] buttons, press the I/1 button to turn on the main power.

2. A state when a protector operates first is displayed.

5

STR-KSL900W

p

SECTION 3

ELECTRICAL ADJUSTMENT

DIAT SIGNAL RF LEVEL ADJUSTMENT

This adjustment is performed in order to adjust the transmission distance of RF signal for DIAT communication.

Connection:

TX board

JL7003 (RF AMP OUT)

Procedure:

1. Connect the oscilloscope to JL7003 (RF AMP OUT) and GND on the TX board.

2. Connect DIR-T1 to DIR-T1 jack (J7001).

Note: Be sure to connect DIR-T1 before the adjust.

3. Adjust RV7001 on the TX board so that the center of w aveform becomes 1.0 Vp-p.

4. Confirm trigger is locked.

5. Adjust RV7001 on the TX board so that the center of w aveform becomes 2.2 to 2.4 Vp-p.

RF Signal Reference Waveform

oscilloscope

VOLT/DIV : 500 mV TIME/DIV : 500 ns

Adjustment Location:

– TX Board (Component Side) –

JL7003

(RF AMP OUT)

level : 2.2 to 2.4 Vp-

6

SECTION 4

C

B

These are omitted.

E

Q

B

These are omitted.

CE

Q

d

DIAGRAMS

STR-KSL900W

• Circuit Boards Location

DISPLAY board

MAIN board

VOLUME board

STBY board

TX board

DIGITAL board

I/O boar

• Note for Printed Wiring Boards and Schematic Diagrams

Note on Printed Wiring Board:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

• f : internal component.

• : Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

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

• Indication of transistor

Note on Schematic Diagram:

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

• All resistors are in Ω and 1/ specified.

• f : internal component.

• 2 : nonflammable resistor.

• C : panel designation. Note: The components identified by mark 0 or dotted

line with mark 0 are critical for safety. Replace only with part number specified.

• A : B+ Line.

• B : B– Line.

•Voltages and waveforms are dc with respect to ground under no signal (detuned) conditions. no mark : TUNER (): VIDEO

•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. Voltage variations may be noted due to normal production tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F : TUNER J : AUDIO (ANALOG) c : AUDIO (DIGITAL) E : VIDEO

4

W or less unless otherwise

STR-KSL900W

77

STR-KSL900W

4-1. BLOCK DIAGRAM – AUDIO DSP/VIDEO SECTION –

TUNER/

AUDIO AMP

SECTION

L-CH

A

DIGITAL

TV/SAT

OPT IN

DVD

OPT IN

DVD

COAX IN

DIGITAL OPTICAL

RECEIVER

IC301

DIGITAL OPTICAL

RECEIVER

IC302

J301

IC303

R-CH

A/D CONVERTER

IC1401

2 9AINL SDTO 1 AINR

MCLK

13

11

X1301

12.288MHz

20

22

21

XIN

XOUT

4 DIN1 3 DIN0 5 DIN2

XMCK

PDN

S-RAM IC1502

D0 – D15 A0 – A15

7 – 10, 13 – 16,

29 – 32, 35 – 38

5 – 1, 44 – 42,

27 – 24, 21 – 18

WEWE0

CSCE0

17

6

R-ch is omitted due to same as L-ch. Signal Path

: AUDIO (ANALOG) : AUDIO (DIGITAL) : VIDEO

108, 107, 105 – 102,

99, 98, 80 – 77, 75 – 72 18 SDI1 30 SDI2

12SCLK

10LRCK

16DATA0

14BCK 15LRCK 13CKOUT

24AUDIO 35DO 36DI 38CLK 37CE

48XMODE

17 BCKI1 29 BCKI2 15 LRCKI1 28 LRCKI2 22 KFSIO

69 GP8

59 EXLOCK

12 AD5380_PDN

D1301

1 DATAO

98 DO 97 DI 95 CLK 96 CE

93 XMODE

D0 – D15

HDINHDIN

33

19

ANA/DIG

24

D1103

HCLKHCLK

34

36

20

4

SYSTEM CONTROLLER

ERROR

99

112, 110, 109, 97 – 92,

82 – 85, 66 – 64

AUDIO DIGITAL

SIGNAL PROCESSOR

IC1501

HCSHCS

HDOUTHDOUT

HACNHACN

GP9GP9

GP12GP12

35

32

56

68

37

18

5

2

8

IC1601 (1/3)

XSTATE

100

A0 – A15

BSTBST

113

3

7

PMPM

2

6

XRSTXRST

X1101

16.5MHz

83

X1

CSOD

XRST

XSCEN

SCLK

SWDT

F.MUTE

21

D1106

45

44

23SDO1 24SDO2 25SDO3

20BCKO 19LRCKO 14SCKOUT

MCLK2

MCLK1

12

9

X1502

13.9MHz

82

X0

57 31 30 29 28

25VIDEO-SW1 26VIDEO-SW2 32VIDEO-MUTE

34SDA 33SCL

EEPROM

IC1131

5 SDA 6 SCL

SDO1 SDO1, SDO2, SDO3 SDO2 SDO3

BCKO

LRCKO

SCKO

VIDEO AMP & SWITCH

IC201

3V2

12 V1

SW12SW213M24M1

11

BCKO, LRCKO, SCKO

10MON

B

C

J501 (1/2)

TUNER/

AUDIO AMP

SECTION

VIDEO

VIDEO IN

DVD

MONITOR

OUT

STR-KSL900W

17XSTATE

34ERROR

DIGITAL AUDIO INTERFACE RECEIVER

IC1301

DATA LRCK BCK

SWDT SCLK XSCEN XRST

IC7005

LEVEL SHIFT

IC7006

LEVEL SHIFT

IC7004

LEVEL SHIFT

CSOD

IC7002

DIAT TRANSMITTER

48

DTIN LRCK BCK

SWDT SCLK XSCEN XRST APS

CSOD

DAAOUT

OSCO

OSCI

49 50

15 13 14 64 41

16

MUTING SWITCH

Q1105

RV7001

DIAT SIGNAL

RF LEVEL

21

59

57

BUFFER

X7001

24.576MHz

Q7001

LPF

D1105

IC7003

RF AMP

DATA, LRCK, BCK, CSOD,

SWDT, SCLK, XSCEN, XRST

MUTING SWITCH

Q1103

MUTING SWITCH

Q1104

J7001

DIR-T1

CSOD,SWDT,SCLK,XSCEN,XRST

IC1036

INVERTER

LRCK,DTIN,BCK

SMUTE

D

TUNER/

AUDIO AMP

SECTION

88

– TUNER/AUDIO AMP SECTION –

D/A CONVERTER

IC1452

SDO3

SDO2

SDO1SDO1, SDO2, SDO3

B

L-CH

A

8 SDTI3 6 SDTI1 7 SDTI2

SCKO

LRCKO

BCKOBCKO, LRCKO, SCKO

C

5 BICK 9 LRCK 4 MCLK

20 LINL2 55 LVIN

18LOUT3+

56LSELOUT

17LOUT3– 16ROUT3+ 15ROUT3–

DIFF AMP

IC1403 R-CH R-CH

22LOUT2+ 21LOUT2–

DIFF AMP

IC1404 (1/2)

20ROUT2+ 19ROUT2–

DIFF AMP

IC1404 (2/2)

R-CH

40 SLVIN

39SLSELOUT

37 CVIN

38CSELOUT

34 SWVIN

33SWSELOUT

70PREOUT/FRONT RELAY

76FAN_ON

74F_CTRL2

54LOUT

36COUT

37SWOUT

78 INL4

24 CIN2

25 SWIN2

2 INL2

R-CH

L

R

TV/SAT

74 INL6

R-CH

L

R

DVD

70 INL8

14 BAL L+

R-CH

L

R

VIDEO

AUDIO IN

FM

AM

TN1

TUNER UNIT

FM 75Ω

COAXIAL

AM

ANTENNA

8L CH

69 DO

RDS SIGNAL

RDS CLK

RDA DATA

2

4313

5214

5315

DO

FM SIG OUT

RDS INT

RDS DATA

68 SLATCH4CE 66 TUNED6TUNED 65 STEREO7STEREO 64 MUTE11MUTING

3DATA 1CLOCK

10R CH

J501 (2/2)

DATA

28

75FAN_CLK

CLK27LATCH

29

CDTI12CCLK11CSN10PDN

3

DATA

16

CLK

15

LATCH

22

9 AK4355_PDN 12 AK4355_CSN 14 AK4355_CLK 13 AK4355_CDT

MUTING

Q361

MUTING

Q363

MUTING

Q364

FAN MOTOR

LEVEL DETECT

Q550, 551

RY701

AC POWER

PROTECTOR

Q730 – 732

RELAY DRIVE

Q720

RY501

67PROTECTOR

RELAY DRIVE

Q520

RY401

J403

TM601

SUB WOOFER

OUT

R

L

+

–

– + +

–

R-CH

FRONT

CENTER

D721,

D1110

D521,

D1107

71CENTER RELAY 17WOOFER RELAY

RELAY DRIVE

Q402

FAN MOTOR

DRIVE

Q861 – 863

M1

(FAN)

M

SMUTE

D

SYSTEM CONTROLLER

IC1601 (2/3)

AUDIO SELECTOR, ELECTRICAL VOLUME

IC401

: AUDIO (DIGITAL)

: AUDIO (ANALOG)

: TUNER

Signal Path

R-ch is omitted due to same as L-ch.

POWER AMP

IC701

POWER AMP

IC501

LINE AMP

IC402

MUTING

CONTROL SWTICH

Q379

SPEAKERS

AUDIO DSP/

VIDEO

SECTION

AUDIO DSP/

VIDEO

SECTION

AUDIO DSP/

VIDEO

SECTION

STR-KSL900W

99

STR-KSL900W

– DISPLAY/POWER SUPPLY SECTION –

MASTER VOLUME

S120, 121

S119, 122

REMOTE CONTROL

RECEIVER

IC102

ROTARY

ENCODER

RV101

S123

I

/ 1

FLUORESCENT INDICATOR TUBE DRIVER,

54 SIRCS

60 VOL (A) 59 VOL (B)

38 A/D0 7DIN

39 A/D1S117, 118

40 A/D2

56 POWER KEY

CLK

FL_STB

61DIN 62 63

LEVEL SHIFT

IC1651

8 CLK 9 STB

LED DRIVER

IC152

TUNER LED, TV/SAT LED,

DVD LED,

VIDEO LED

42 – 31

GRID1 – GRID12

14 – 291 – 4

SEG1 – SEG16

F1

FL1001

FLUORESCENT

INDICATOR

TUBE

F2

D151 – 154

TUNER+3.3V

TUNER+10V

+3.3V

A+5V, D+5V

+3.3V

REGULATOR

IC1071

+3.3V

REGULATOR

Q401

+5V

REGULATOR

IC1001

+7V

V+5V

+10V

REGULATOR

IC1902

+7V

REGULATOR

IC403

+5V

REGULATOR

IC405

B+ B–

RECT D809

T901

MAIN POWER

TRANSFORMER

SYSTEM CONTROLLER

IC1601 (3/3)

–5V

V–5V

+3.3V

55FUSE DETECT

+3.3V

REGULATOR

Q1006

+5V

–7V

RELAY B+

+5V

REGULATOR

IC1905

+9V

D+2.6V

D+3.3V

+5V

REGULATOR

IC406

–7V

REGULATOR

IC404

+9V

REGULATOR

IC1903

+3.3V/+2.6V

REGULATOR

IC1901

+5V

REGULATOR

IC1031

FLUORESCENT INDICATOR TUBE

(FL101)

RECT

D801 – 804

RECT

D814 – 817

RECT

D805 – 808

–27V

F1 F2

D813

T902

SUB POWER

TRANSFORMER

F901

STR-KSL900W

+3.3V

STBY +3.3V

RESET SIGNAL

77RSTX

48STOP

78POWER RELAY

GENERATOR

IC1111

REGULATOR

IC1904

RECT

D952 – 955

AC POWER

DETECT

Q901

D956

D957

RY901

RELAY DRIVE

Q951

(AC IN)

1010

STR-KSL900W

4-2. PRINTED WIRING BOARD – DIGITAL BOARD (COMPONENT SIDE) – • See page 7 for Circuit Boards Location.

1

2

3

4

5

6

7

A

B

DIGITAL BOARD

C

D

E

F

C1122

C1123

G

H

I

J

K

L

(COMPONENT SIDE)

C1057

FB1310

JR1030

R1035

R1036

R1034

JR1031

R1080

C1124

IC1131

71

8

R1053

IC1651

14

R1109

R1032

14

85

R1070

R1122

R1123

C1059

R1107

R1031

JR1032

R1061

R1129

R1113

R1252

R1030

R1251

IC1036

814

71

R1062

R1060

R1063

31

50

R1186

R1125

D1105

30

R1124

R1033

R1115

Q1105

Q1104

R1176

R1105

R1126

C1253

C1252

E

Q1103

D1106

R1098

R1177

E

R1119 R1112

R1435

C1433

R1168

R1099

IC1601

R1128

C1108

R1433

1

4

IC1404

R1162

R1152

R1153

R1156

IC1111

R1160

R1151

R1121

13

54

C1137

R1475

R1161

8

5

R1150

R1149

1

8051

R1476

R1473

R1144

R1143

100

81

R1106

R1127

R1189 C1107

C1473

X1101

R1436

R1041

FB1101

FB1502

R1446

R1445

R1443

1

C1443

4

R1485

R1486

R1483

R1403

8

C1483

5

IC1403

FB1452

FB1405

C1450

28 15

FB1453

IC1452

R1407

R1502

R1503

IC1501

C1408

R1405

FB1503

R1140

R1134

R1136

114

R1137

R1509

R1142

R1555

R1135

R1541

R1529

R1511

C1454

R1504

R1506

R1505

R1508

30 1

31

60

61

FB1501

R1404

FB1406

R1523

R1542

R1527

R1406

C1522

R1536

: Uses unleaded solder.

8

C1404

1

169

R1554 R1517 R1518 R1519

R1522

R1521

R1409

R1501

R1548 R1549 R1550

R1526 R1525 R1552 R1553

R1520 R1532

R1547

JR1020

R1539

R1305

R1306

D1301

C1303

R1307

R1309

C1913

44

R1551

R1533

R1534

R1540

R1544

C1405

C1407

R1408

C1521

90

8

R1515

R1537

R1493 R1492

IC1401

X1502

120

91

R1535

R1538

R1543

R1528

9

R1304

FB1301

R1360

FB1305

IC1502

R1303

R1308

X1301

FB1302

C1302

13

24

C1304

R1301

C1305

R1310

C1301

R1302

2223

R1362

R1311

C1063

1

10

112

3625

R1312

C1131

R1361

48

IC1301

37

Z5

R1316

R1315

R1313

1-861-783-

11

(11)

• Semiconductor Location

Ref. No.

D1105 F-3 D1106 G-4 D1301 E-9

IC1036 D-3 IC1111 J-4 IC1131 G-2 IC1301 E-10 IC1401 F-8 IC1403 E-7 IC1404 E-4 IC1452 F-6 IC1501 I-7 IC1502 I-9 IC1601 H-4 IC1651 H-2

Q1103 F-3 Q1104 F-3 Q1105 E-3

11

Location

STR-KSL900W

1111

STR-KSL900W

4-3. PRINTED WIRING BOARD – DIGITAL BOARD (CONDUCTOR SIDE) – • See page 7 for Circuit Boards Location.

1 2 3 4 5 6 7 8 9 10 11

A

B

R1480

CNS191

R1444

R1481

R1442

R1440

C1506

B

R1441

C1441

I/O BOARD

CNS403

(Page 17)

C1442

C1504

C1505

C1516

C1906

1

C1569

C1456

C1502

C1517

C1518

C1908

IC1901

24

C1460

5

DIGITAL BOARD

(CONDUCTOR SIDE)

A

I/O BOARD

CNS301

(Page 17)

C

C1306

C1402

D1004

3

1

JR2002

C1491

C1547 C1566

C1401

C1002

1

3

C1004

C1001

C1403

C1406

D1003

C1510

R1514

R1546

C1003

C1513

R1545

C1501

C1511

R1574

R1556

C1514

R1573

R1513

R1512

C1509

R1572

C1508

R1571

IC1031

3

1

C1031

C1487

C1438 C1448

C1481

R1484

C1482

R1482

C1457

C1503

C1507

R1570

(CHASSIS)

G1101

D

E

R1317

C1313

F

C1064

G

R1318

R1314

C1315

3

1

C1314

C1312

C1309

C1310

CN197

FB1308

C1308

C1914

FB1309

IC1001

IC1902

IC1071

H

C1519

I

C1525

C1520

J

K

L

C1032

C1455

R1044

JR2001

C1515

R1049

C1905

: Uses unleaded solder.

C1428

C1299

C1138

R1261

C1471

C1472

R1043

C1468

R1474

R1472

R1470

R1430

R1636

R1635

CNS192

C1022

R1260

R1431

R1471

C1431

R1434

C1432

R1432

C1459

C1605

C1620

R1039

C1101

R1052

R1111

FOR

CHECK

R1051

R1050

R1190

C1900

ANTENNA

FM 75Ω

COAXIAL

TN1

TUNER UNIT

CNS195

R1037

R1038 R1040

C1126

R1178

D1103

R1097

R1194

C1121

R1165

C1604

C1129

C1130

C1903

31

IC1903

R1167

C1142

AM

C1251

R1169

R1193

R1166

IC1904

C1901

C1035

R1096

C1125

C1021

C1904

(CHASSIS)

G1102

C1058

R1046

C1057

R1201

R1158

R1159

R1045

R1071

C1139

Q1006

E

R1072 R1073

R1088 R1180 R1179

C1133

FB1306

12

13

CNS190

2

1

FB1304

CNS193

K

TX BOARD CN7001

(Page 25)

D

DISPLAY

BOARD

CNS151

(Page 23)

• Semiconductor Location

C

MAIN

BOARD

CNS822

(Page 19)

11

(11)

Ref. No.

D1003 G-4 D1004 F-3 D1103 G-8 D1107 I-10 D1110 I-9

IC1001 E-3 IC1031 L-4 IC1071 G-2 IC1901 L-6 IC1902 G-3 IC1903 L-8 IC1904 J-9 IC1905 K-10

Q1006 E-10

Location

R1175

R1058

R1059

C1100

C1120

13

C1065

C1066

C1068

D1107

D1110

C1025

IC1905

13

C1067

CNS194

22

23

C1069

2

1

1-861-783-

STR-KSL900W

1212

4-4. SCHEMA TIC DIAGRAM – DIGITAL BOARD (1/4) – • See page 27 for Waveforms. • See page 28 for IC Block Diagram.

(1/4)

C1306

C1305

47

0.1

16V

R1317R1318C1315 C1314 C1312

10k10k0.1 0.1 0.1

XMODE

CE

CLK

STR-KSL900W

ANTENNA

AM

FM 75Ω

COAXIAL

TN1

TUNER UNIT

CNS195

15P

C1313R1316

100p100

0

R1261

0

R1260

R1252

R1251

39k

100

R1059

100

R1058

100

R1175

(Page 18)

(CHASSIS)

LRCK

G

TX

+3.3V

BOARD

CN7001

(Page 26)

SWDT

CSOD CSOD

XSCEN

XRST

(CHASSIS)

ATA

SIG

RD

RCLK

CN197

7P

NC

DVD-IN

TV-IN

+3.3V

GND

+5V

COAX-IN

1.7

0

1.7

891011121314

G1102

FB1306

C1059

FB1304

+3.3V REGULATOR

0

JR1032

JR1030

JR1031

VSS

Q1006

2SC3661-TB

0

1.7

1.701.7

3.3

5

C1133

0.1

R1030

13

100

R1031

DTIN

BCK

+5V

GND

+9V

SCLK

100

R1032

470

FB1310

R1035

0

R1036

0

R1034

0

R1080

0

1

CNS190

13P

G1101

C1057

FB1308

FB1309

1.7

3.3

VDD

IC1036

SN74AHCU04PWR

C1056 47/16V

0.1

C1058 47/16V

4

C1131

0.1

C1305

0.1

R1046

R1045

R1037

R1038

R1040

2.2k

820

R1362

R1361

C1302

R1303

C1303 R1304

0.1 100

C1304

0.01 FB1302

IC1036

INVERTER

0

SCLK

SWDT

CSOD

XSCEN

XRST

100

DIGITAL AUDIO

FB1301

470

R1305

KFSIO

0

JR1020

BCKI2

100

R1360

22

R1306

LRCKI2

INTERFACE RECEIVER

IC1301

LC89056W-E

100

R1307

R1309

STAGE

SDI2

FB1305

18p

C1309

R1310

1M

X1301

12.288MHz

C1308C1310

0.118p

0.01

33k

C1301

0.1

5.6k

R1301

4.7k

R1302

LRCK

DTIN

BCK

R1314

R1308

R1311

R1315

100

R1313

10k

R1312

100

D1301

1SS352

100

DI

100

DO

100

ERROR

DATA

C1064

47

16V

MUTE

+3.3V REGULATOR

IC1071

BA33

0.1

C1251

ROUT

C1063

STRO

TUNED

LATCH

DO69

LOUT

0.1

DAT19

CLK20

0.1

C1252

C1253

+10V REGULATOR

C1914

47

16V 0.1

IC1902

OGIOGI

A1

A2

A3

(Page 14)

A5

A4

7810

C1913

STR-KSL900W

B1

B2

B3

C1

C10

C11

C13

C12

C5

C6

C7

C9

(Page 16)(Page 15)

1313

STR-KSL900W

4-5. SCHEMA TIC DIAGRAM – DIGITAL BOARD (2/4) – • See page 27 for Waveforms. • See page 32 for IC Pin Function Description.

(2/4)

A1

A2

(Page 13)

A3

PM

R1501

A4

A5

XRST

LRCK

BCK

MCLK

LRCKI2

BCKI2

SDI1

LRCK

DTIN

BICK

KFSIO

SDTI3

SDTI1

SDTI2

LRCKI2

BCKI2

SDI2

R1512

100

1k

C1511

0.1

C1522

10p

C1521

10p

X1502

13.9MHz

R1515

1M

R1556

FB1503

100

R1503

220

R1523

C1510C1509

0.10.1

220

R1502

R1504

R1505

R1506

C1515

470 10V

0

1

0

2

D

A

R1513

10k

SIGNAL PROCESSOR

100

R1508

R1509

T U

N

K

2

IN

O

C

L

S A H

1

D

C

D

C

P

H

G

1

2

D

AUDIO DIGITAL

IC1501

CXD9720BQ

0

E

S C

W

C1513C1516 R1514

0.10.1 10k

3

4

6

5

7

3

4

5

6

7

D

A

8

A

A10

A11

A12

A9

D8

D9

D10

D11

D12

D13

D14

D15

A13

A14

A15

R O R R E

FB1501

R1574

R1573

R1572

R1571

R1570

C1507

C1501

C1504

C1506

5

6

3

4

5

A

220

R1520

R1521

R1522

10k

0.1

S-RAM IC1502

IS61LV6416-EL10

R1511

100

C1503 C1505 C1508 C1502

0.1 0.1 0.1 0.1

220

R1528

4 1 A

220

R1527

5 1 A

220

R1544

3 1 A

7

D

220

R1519

R1518

R1517

R1554

220

R1545

R1546

R1555

R1543

R1542

R1540

R1539

0

2

3

4

5

1

S

8

7

A

C1514 C1518

0.1 0.1

R1529

220

D

C

C1525

100 10V

0.1

C1519

0.1

C1520

D

220

R1553

220

R1538

1 1 D

D

220

R1552

220

R1537

0 1 D

D

220

R1525

220

R1536

9 D

0 D

220

R1526

220

R1535

9 D

220

R1541

0 E

W

6 A

220

R1551

220

R1547

9 A

2 A

220

R1550

220

R1534

2 1 A

1

0

A

220

R1549

R1548

220

R1533

R1532

0

1

A

C1517

470 10V

GP9

A

1

2

3

4

STR-KSL900W

E1

E2

D1

(Page 15) (Page 16)

1414

FB1502

D2

4-6. SCHEMA TIC DIAGRAM – DIGITAL BOARD (3/4) – • See page 27 for Waveforms. • See page 28 for IC Block Diagram.

(Page 13) (Page 14)

BCKI2

LRCKI2

SDI1

R1445 R1442

4.7k 4.7k

R1443

180

C1442

470p

C1443

470p

E1

R1408 R1409

10k 47k

R1472

4.7k

C1472 470p

R1475

4.7k

0.0033

R1473

C1471

180

R1407

C1408

R1474

100

0.1

180

C1473

FB1405

FB1406

470p

(Page 18)

CNS191

25P

TUNER-L

GND

TUNER-R

R-OUT

GND

L-OUT

L-IN

GND

R-IN

GND

SL-IN

GND

SR-IN

GND

C-IN

+7V

SW-IN

-7V

DATA

CLOCK

LATCH

SW RELAY

VIDEO SW1

VIDEO SW2

VIDEO MUTE

LOUT

ROUT

DAT19

CLK20

SW-_RY

V_SW1

V_SW2

V_MUTE

B2

B1

B3

(3/4)

A/D CONVERTER

IC1401

AK5380VT-E2

C1402

C1404

50V

C1448

C1438

R1485

50V

10

0.1

50V10

R1406 R1405

C1406

220 10V

4.7k

10

C1407

R1482

4.7k

R1483 R1484

180 180

C1482

470p

C1483

470p

0.1

C1481 3300p

DIFF AMP

IC1403

4565

VCC

C1566

0.0022

C1569 R1436

0.0022 1k

R1476

VEE

C1468

10

50V

1k

C1428

10 50V

1k 2.2k

C1441

0.0033

R1444

180

C1405

C1403

R1492R1404

C1491C1401

0.1

220 10V

100k100k

R1486

1k

C1487

0.0022

C1547

0.0022

R1446

1k

10

50V

R1403 R1493

100 100

DAT19

CLK20

LAT

FB1453

R1481

R1480

R1441

R1440

R1471

R1470

C1454

STR-KSL900W

E2

I

K

N

T D C

C1457

0.1

10

50V

4.7k

DIFF AMP

IC1404

4565

VEE

VCC

I3

L

C

S

T

C

R

D

C

L

S

R1430

4.7k

C1431

0.0033

R1434

180

K

I2

I1

L

T

IC

C

D

B

M

S

C1459

0.1

ISS367-T3

0.1

C1003

+5V REGULATOR

IC1001

7805

OGI

0.022

C1004

D1003

D1004

C1002

0.1

F1

F2

F3

R1432

C1432

D/A CONVERTER

IC1452

AK4355VF-E2

FB1452

C1456 C1450

4.7k

R1433

R1431

180

C1433

4.7k

R1435

470p

4.7k

470p

C1455 C1460

0.1 0.1

10

50V1050V

C1001

470 10V

(Page 16)

F4

F5

STR-KSL900W

1515

Sony STR-KSL900W Service Manual

TABLE OF CONTENTS

GENERAL

TEST MODE

ELECTRICAL ADJUSTMENT

DIAGRAMS

4-1. BLOCK DIAGRAM – AUDIO DSP/VIDEO SECTION –

– TUNER/AUDIO AMP SECTION –

– DISPLAY/POWER SUPPLY SECTION –

4-2. PRINTED WIRING BOARD – DIGITAL BOARD (COMPONENT SIDE) – • See page 7 for Circuit Boards Location.

4-3. PRINTED WIRING BOARD – DIGITAL BOARD (CONDUCTOR SIDE) – • See page 7 for Circuit Boards Location.

4-4. SCHEMA TIC DIAGRAM – DIGITAL BOARD (1/4) – • See page 27 for Waveforms. • See page 28 for IC Block Diagram.

4-5. SCHEMA TIC DIAGRAM – DIGITAL BOARD (2/4) – • See page 27 for Waveforms. • See page 32 for IC Pin Function Description.

4-6. SCHEMA TIC DIAGRAM – DIGITAL BOARD (3/4) – • See page 27 for Waveforms. • See page 28 for IC Block Diagram.