STR-K740P [SONY]

SERVICE MANUAL;


型号：	STR-K740P
厂家：	SONY CORPORATION
描述：	SERVICE MANUAL
文件：	总19页 (文件大小：4233K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

STR-K740P/K840P

SERVICE MANUAL

US Model

Canadian Model

AEP Model

UK Model

Ver 1.0 2002. 02

E Model

Photo : STR-K840P (SILVER model)

• STR-K740P/K840P are the tuner and the

amplifier section in HT-DDW740/DDW840.

Dolby Laboratories Licensing Corporation.

“DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC”

are trademarks of Dolby Laboratories Licensing Corporation.

SPECIFICATIONS

POWER OUTPUT AND TOTAL

HARMONIC DISTORTION:

Models of area code AR, SP

Rated Power Output at Stereo Mode

(8 ohms 1 kHz, THD 0.7 %)

With 8 ohm loads, both channels driven, from

40 – 20,000 Hz; rated 100 watts (STR-K840P

only)/80 watts (STR-K740P only) per channel

minimum RMS power, with no more than

0.09 % total harmonic distortion from 250

milliwatts to rated output (Models of area code

U only).

STR-K840P:

90 W + 90 W

Reference Power Output²⁾

(8 ohms 1 kHz, THD 10 %)

STR-K840P:

FRONT¹⁾: 120 W/ch

CENTER¹⁾: 120 W

SURR¹⁾: 120 W/ch

Models of other area code

Rated Power Output at Stereo Mode

(8 ohms 1 kHz, THD 0.7 %)

STR-K840P:

STR-K740P:

Amplifier section

POWER OUTPUT

Models of area code U, CA

Rated Power Output at Stereo Mode

(8 ohms 40 Hz – 20 kHz, THD 0.09 %)

100 W + 100 W²⁾

80 W + 80 W²⁾

Reference Power Output²⁾

(8 ohms 1 kHz, THD 10 %)

STR-K840P:

STR-K740P:

100 W + 100 W

80 W + 80 W

FRONT¹⁾: 120 W/ch

CENTER¹⁾: 120 W

SURR¹⁾: 120 W/ch

FRONT¹⁾: 100 W/ch

CENTER¹⁾: 100 W

SURR¹⁾: 100 W/ch

Reference Power Output

(8 ohms 1 kHz, THD 0.7 %)

STR-K740P:

STR-K840P:

FRONT¹⁾:100 W/ch

CENTER¹⁾: 100 W

SURR¹⁾: 100 W/ch

FRONT¹⁾: 80 W/ch

CENTER¹⁾: 80 W

SURR¹⁾: 80 W/ch

1) Depending on the sound field settings and the

source, there may be no sound output.

2) Measured under the following conditions:

STR-K740P:

Area code

Power requirements

240 V AC, 50 Hz

230 V AC, 50 Hz

120 VAC, 60 Hz

Models of area code CEL,CEK

Rated Power Output at Stereo Mode

(8 ohms 1 kHz, THD 0.7 %)

STR-K840P:

STR-K740P:

SP, CEL, CEK, AR

100 W + 100 W²⁾

80 W + 80 W²⁾

Reference Power Output²⁾

(8 ohms 1 kHz, THD 0.7 %)

STR-K840P:

FRONT¹⁾: 100 W/ch

CENTER¹⁾: 100 W

SURR¹⁾: 100 W/ch

FRONT¹⁾: 80 W/ch

CENTER¹⁾: 80 W

SURR¹⁾: 80 W/ch

— Continued on next page —

STR-K740P:

FM STEREO FM-AM RECEIVER

9-873-544-01

2002B1600-1

Sony Corporation

Home Audio Company

Published by Sony Engineering Corporation

STR-K740P/K840P

Frequency response

AM tuner section

MULTI CH IN³⁾, CD,

MD/TAPE, DVD/LD,

VIDEO 1, 2

10 Hz – 50 kHz

+0.5/–2 dB (with sound

field, and tone bypassed)

Tuning range

Models of area code U, CA

With 10-kHz tuning scale: 530 – 1710 kHz⁶⁾

With 9-kHz tuning scale: 531 – 1710 kHz⁶⁾

Models of area code E, AR, MX

With 10-kHz tuning scale: 530 – 1610 kHz⁶⁾

With 9-kHz tuning scale: 531 – 1602 kHz⁶⁾

Models of area code MY, SP, CEL, CEK

With 9-kHz tuning scale: 531 – 1602 kHz

Inputs (Analog)

MULTI CH IN³⁾, CD,

MD/TAPE, DVD/LD,

VIDEO 1, 2

Sensitivity: 250 mV

Impedance: 50 kilohms

S/N⁴⁾: 96 dB

(A, 250 mV⁵⁾)

Antenna

Loop antenna

Intermediate Frequency

3) HT-DDW840 only

450 kHz

4) INPUT SHORT (with sound field and tone

bypassed).

5) Weighted network, input level.

Usable sensitivity

S/N

50 dB/m (at 1,000 kHz or

999 kHz)

54 dB (at 50 mV/m)

Inputs (Digital)

Sensitivity: –

Impedance: 75 ohms

S/N: 100 dB

DVD/LD (Coaxial)

Harmonic distortion 0.5 % (50 mV/m, 400 Hz)

Selectivity

(A, 20 kHz LPF)

At 9 kHz:

35 dB

40 dB

At 10 kHz:

Sensitivity: –

Impedance: –

S/N: 100 dB

VIDEO 2 (Optical)

6) You can change the AM tuning scale to 9 kHz or

10 kHz. After tuning in any AM station, turn off

the receiver. Hold down PRESET TUNING + and

(A, 20 kHz LPF)

press

. All preset stations will be erased when

Outputs

you change the tuning scale. To reset the scale to

10 kHz (or 9 kHz), repeat the procedure.

MD/TAPE (OUT),

VIDEO 1

(AUDIO OUT)

Voltage: 250 mV

Impedance: 10 kilohms

Video section

Inputs

SUB WOOFER

Voltage: 2 V

Impedance: 1 kilohms

Video:

1 Vp-p, 75 ohms

Outputs

Video:

Tone

Gain levels:

±6 dB, 1 dB step

General

Power requirements

Area code

U, CA, MX

CEL, CEK

MY, SP, AR

FM tuner section

Tuning range

87.5 - 108.0 MHz

Power requirements

120 V AC, 60 Hz

Antenna terminals

75 ohms, unbalanced

230 V AC, 50/60 Hz

Intermediate Frequency

220 – 230 V AC, 50/60 Hz

120/220/240 V AC, 50/60 Hz

10.7 MHz

Sensitivity

Mono:

Stereo:

18.3 dBf, 2.2 µV/75 ohms

38.3 dBf, 22.5 µV/75 ohms

Power consumption

Area code

Power consumption

Usable sensitivity

11.2 dBf, 1 µV/75 ohms

U, MX

STR-K840P: 210 W

STR-K740P: 180 W

S/N

Mono:

Stereo:

76 dB

70 dB

STR-K840P: 300 VA

STR-K740P: 260 VA

Harmonic distortion at 1 kHz

Mono:

Stereo:

0.3%

0.5%

CEL, CEK, MY, SP, STR-K840P: 180 W

E, AR STR-K740P: 155 W

Separation

45 dB at 1 kHz

Power consumption (during standby mode)

0.5 W

Frequency response 30 Hz – 15 kHz,

+0.5/–2 dB

Dimensions

430 145 298 mm

(16 7/8 5 6/8 11 6/8

inches) including

projecting parts and

controls

Selectivity

60 dB at 400 kHz

Mass (Approx.)

7.0 kg (15 lb 7 oz)

Design and specifications are subject to change

without notice.

•

Abbreviation

: US model.

: Canadian model.

CEL : AEP model.

CEK : UK model.

: Singapore model. (Malaysia model included.)

MX : Mexican model.

MY : Malaysia model.

: Argentine model.

STR-K740P/K840P

Notes on chip component replacement

SAFETY CHECK-OUT

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

After correcting the original service problem, perform the

following safety checks 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.

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

the lead free mark due to their particular size.)

LEAKAGE

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.

: 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 viscous (sticky, less prone to flow) than

ordinary solder so use caution not to let solder bridges occur such

as on IC pins, etc.

1. A commercial leakage tester, such as the Simpson 229 or RCA

WT-540A. Follow the manufacturers’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-operatedAC voltmeter. The “limit” indication

is 0.75 V, so analog meters must have an accurate low-voltage

scale. The Simpson 250 and Sanwa SH-63Trd are examples of

a passive VOM that is suitable. Nearly all battery operated

digital multimeters that have a 2V AC range are suitable. (See

Fig. A)

• Usable with ordinary solder

It is best to use only unleaded solder but unleaded solder may

also be added to ordinary solder.

To Exposed Metal

Parts on Set

Voltmeter

(0.75 V)

0.15 µF

1.5 kΩ

Earth Ground

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

SAFETY-RELATED COMPONENT WARNING!!

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINEWITH

MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS

LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE

COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS

APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS

PUBLISHED BY SONY.

LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES

DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT

CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE

REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY

DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU

DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

STR-K740P/K840P

MODEL IDENTIFICATION

— BACK PANEL —

TABLE OF CONTENTS

1. GENERAL ·········································································· 5

2. TEST MODE ······································································ 6

3. DIAGRAMS········································································ 8

3-1. Circuit Board Location ·················································· 8

3-2. Block Diagrams – MAIN Section – ···························· 10

– DISPLAY/POWER Section –··································· 11

3-3. Printed Wiring Board – DIGITAL Section – ··············· 12

3-4. Schematic Diagram – DIGITAL Section (1/2) – ········· 13

3-5. Schematic Diagram – DIGITAL Section (2/2) – ········· 14

3-6. Printed Wiring Board – MAIN Section – ···················· 15

3-7. Schematic Diagram – MAIN Section (1/2) – ·············· 16

3-8. Schematic Diagram – MAIN Section (2/2) – ·············· 17

3-9. Printed Wiring Board – DISPLAY Section – ·············· 18

3-10.Schematic Diagram – DISPLAY Section – ················· 19

3-11.Printed Wiring Board – VIDEO Section – ·················· 20

3-12.Schematic Diagram – VIDEO Section – ····················· 20

3-13.Printed Wiring Board – POWER Section – ················· 21

3-14.Schematic Diagram – POWER Section – ··················· 22

3-15.IC Block Diagrams ······················································ 23

3-16.IC PIN FUNCTION DESCRIPTIONS ······················· 25

Parts No.

MODEL

K740P : US

PARTS No.

4-238-189-2s

4-238-189-3s

4-238-189-4s

4-238-189-5s

4-238-189-6s

4-238-189-7s

4-238-193-0s

4-238-193-1s

4-238-193-2s

4-238-193-3s

4-238-193-4s

4-238-193-5s

4-238-193-8s

4-238-193-9s

K740P : Canadian

K740P : Malaysia,Singapore

K740P : E

K740P : AEP

K740P : UK

K840P : US

K840P : Canadian

K840P : Malaysia, Singapore

K840P : E

K840P : AEP

4. EXPLODED VIEWS ······················································ 27

4-1. Front Panel Section ····················································· 27

4-2. Chassis Section-1 ························································ 28

4-3. Chassis Section-2 ························································ 29

K840P : UK

K840P : Argentine

K840P : Mexican

5. ELECTRICAL PARTS LIST ······································· 30

STR-K740P/K840P

SECTION 1

GENERAL

This section is extracted

from instruction manual.

FM MODE (Models of area code

CEL, CEK only) ed, (Except for

models of area code CEL, CEK)

ef(32)

PRESET TUNING +/– (Except

for models of area code CEL,

CEK) 3(33, 54)

PTY (models of area code CEL,

CEK only) ef(34)

ALPHABETICAL ORDER

0 – 9

2 CH wh(26)

INPUT MODE qg(22)

IR (receptor) 4(39, 46, 52)

LEVEL 0(16, 20, 28, 57)

SET UP 6(4, 16, 37, 57)

SHIFT eg(33)

SLEEP (HT-DDW740 only) qf

(37)

A – D

A.DEC wk(24, 26)

AM (Except for models of area

code CEL, CEK) es(31, 32)

BASS +/– wg(19, 30, 57)

CD ql(22)

CINEMA STUDIO EX A, B, C

9(25)

Digital Cinema Sound (indicator)

qs(24)

SURR qd(28, 57)

MASTER VOLUME wd(20, 50)

MD/TAPE qj(22)

MEMORY eh(31, 33)

T – Z

MENU +/– e;(16, 28, 36, 37, 57)

TREBLE +/– qh(30, 57)

TUNER ws(22, 32, 33, 36)

TUNING +/– 5(32)

VIDEO 1 qk(22)

MENU </> ea(16, 28, 36, 37, 57)

MODE wj(25, 30, 51)

MULTI CHANNEL DECODING

(indicator) (HT-DDW840 only)

7(22)

DIMMER ej(23)

DISPLAY 2(23, 34, 52)

Display qa(23)

VIDEO 2 w;(22)

MULTI CH IN (HT-DDW840

only) qf(22)

BUTTON DESCRIPTIONS

DVD/LD wa(22)

MUTING wf(22, 50)

?/1 (power) 1(4, 15, 20, 21,

E – L

30, 31, 54)

N – S

NAME 8(36)

PHONES (jack) ek(22, 51)

PRESET/PTY SELECT +/–

(Models of area code CEL, CEK

only) 3(33, 34)

ENTER wl(36)

•

Abbreviation

CEK : UK model.

CEL : AEP model.

FM (Except for models of area

code CEL, CEK) ed(31, 32)

FM/AM (Models of area code

CEL, CEK only) es(31, 32)

7 890qaqsqdqfqgqhqjqkqlw;waws

–

ehegefedesea e; wlwkwjwh wg

STR-K740P/K840P

SECTION 2

TEST MODE

3. Press the VIDEO button, confirm display

FACTORY PRESET MODE

* All preset contents are reset to the default setting.

* Procedure:

DIGITAL

DTS

MONO

NEWS

MEMORY

SP.OFF OPT MULTI CH IN

While depressing the VIDEO 1 and the 2CH buttons simul-

taneously, press the power button to turn on the main power.

ft.

?/1

( ( (

) ) )

The message “FACTORY” appears and switch off the set.

While depressing the VIDEO 1 and the 2CH buttons simul-

taneously, press the power

“FACTORY” appears and the present contents are reset to the

default values.

button again. The message

?/1

MULTI CHANNEL DECODING , 2CH , SURR and NAME

LED turn on.

4. Press the VIDEO button, All segments turn off.

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.

5. Every pressing of the VIDEO button turns on each

segment and LED one after another in the same order.

(Not only the VIDEO button, but also the other buttons such as

DVD/LD , TV/SAT , MD/TAPE , CD , TUNER and AUX can

be used.)

* Procedure:

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

While depressing the TUNING+ button or the

PRESET+ button, press the power

main power. Either the message “9 k STEP” or “10 k STEP”

appears. Select the desired step.

button to turn on the

?/1

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.

* For US/Canadian/E model only

* Procedure:

SPEAKER SIZE SELECTION MODE

*Either Normal Speaker or Micro Satellite Speaker can be selected.

*Procedure:

While depressing the MODE button, press the power

to turn on the main power.

The message “SURR. CLR.” appears and initialization is

performed.

button

?/1

While depressing the LEVEL button, press the power

to turn the main power.

button

?/1

Either the message “NORM. SP.” or “MICRO SP.” is displayed.

Select the desired speaker size.

DEMONSTRATION MODE

* Demonstration is performed.

* Procedure :

FLUORESCENT INDICATOR TUBE TEST 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.

While depressing the SET UP button, press the power

?/1

button. The message appears and demonstration is performed.

* To finish DEMONSTRATION MODE, press the power

?/1

button while the introduction message appears in the display.

* Procedure:

While depressing the MD/TAPE and the SHIFT buttons simul-

SOFTWARE VERSION DISPLAY MODE

* The software version is displayed.

* Procedure:

taneously, press the power

1. All segments turn on.

button to turn on the main power.

?/1

While depressing the ENTER and the A.F.D buttons

SLEEP D D

IGITALPRO LOGIC DTS MPEGSTEREO MONO RDS MEMORY

SP.OFF OPT COAX MULTI CH IN D.RANGE EQ TA NEWS INFO

MUTING

simultaneously, press the power

button to turn on the main

?/1

power. The model name, destination and the software version are

displayed.

kHz

mft.

MHz

( ( ( L F E ) ) )

SL SR

KEY CHECK MODE

* Button check

* Procedure:

MULTI CHANNEL DECODING , Digital Cinema Sound ,

A.F.D. , MODE , 2CH and SET UP LED turn on.

2. Press the VIDEO button, confirm display.

While depressing the VIDEO 1 and the SHIFT buttons

simultaneously, press the power

power.

button to turn on the main

?/1

SLEEP

COAX

PRO LOGIC

MPEGSTEREO

D.RANGE TA

RDS

INFO

MUTING

“REST 39” appears. (AEP, UK, model: “RESET 38”)

Every pressing of any button other than ?/1 and SPEAKERS

counts down the buttons. The buttons which are already counted

once are not counted again. When all buttons are pressed “REST

00” appears.

L F E

MHz

When MASTER VOLUME is rotated in clockwise direction,

“VOL MIN”, “VOL 1” to “VOL 48”, “VOL MAX” appear.

A.F.D. , MODE , LEVEL , SET UP , and Digital Cinema Sound

LED turn on.

STR-K740P/K840P

AUTO BETICAL MODE

* This mode is installed in the Europe models only. When this mode

is used, the receiver scans the broadcasts that can be received by

the tuner, and sets up the broadcasts. Be sure to start scanning

after connecting the antenna.

* Procedure:

1. Check that the antenna is connected.

2. Press the ?/1 button to turn on the power while pressing the

MEMORY button.

3. The message “AUTO-BETICAL SELECT” appears and the

receiver starts scanning.

STR-K740P/K840P

SECTION 3

DIAGRAMS

3-1. Circuit Board Location

AC SELCT board (E model only)

STANDBY board

VIDEO board

POWER SW board

MAIN board

DIGITAL board

HEADPHONE board

DISPLAY board

STR-K740P/K840P

For printed wiring boards.

Note:

• X : parts extracted from the component side.

THIS NOTE IS COMMON FOR PRINTED WIRING

BOARDS AND SCHEMATIC DIAGRAMS.

(In addition to this necessary note is printed in each

block.)

• Waveform

DIGITAL Board

•

: Through hole.

: internal component.

: Pattern from the side which enables seeing.

For schematic diagrams.

1IC1101 wa(XOUT)

Note:

• All capacitors are in µF unless otherwise noted. p : pF. 50

WV or less are not indicated except for electrolytics and

tantalums.

4.4Vp-p

3.3Vp-p

2.8Vp-p

These are omitted.

• All resistors are in Ω and ¹/₄W or less unless otherwise

specified.

B E

81ns

(12.288MHz)

•

: indicates tolerance.

: internal component.

• 2 : nonflammable resistor.

• 5 : fusible resistor.

• C : panel designation.

These are omitted.

Note:

2IC1201 9(MCLK1)

The components identified by

mark 0 or dotted line with mark

0 are critical for safety.

Replace only with part number

specified.

Les composants identifiés par

une marque 0 sont critiques

pour la sécurité.

Ne les remplacer que par une

pièce portant le numéro spécifié.

Caution:

Pattern face side: Parts on the pattern face side seen from

(Side A)

the pattern face are indicated.

Parts on the parts face side seen from

the parts face are indicated.

Parts face side:

(Side B)

• 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 aVOM (Input impedance 10 MΩ).

Voltage variations may be noted due to normal produc-

tion tolerances.

• Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

73ns (13.59MHz)

3IC1601 id(XI)

: FM

: CD (ANALOG)

: DVD (DIGITAL)

• Abbreviation

5ns (20MHz)

CND : Canadian model

: Malaysia model

: Singapore model

: Argentine model

: Mexican model

STR-K740P/K840P

3-2. Block Diagrams – MAIN Section –

IC201

ANALOG SOUND

PROC.

TUNER PACK

L CH

R CH

L IN8

75 Ω

IC1601(1/3)

COAXIAL

R-CH

SYSTEM CONTROL.

ANTENNA

AM ST-DO

ST-DI

76 DO

J402

J403

J404

L OUT 51

CLK

L IN9

Q361

MUTING

78 SLATCH

67 L REC3

OUT

STEREO

TUNED

74 STEREO

73 TUNED

75 MUTING

MD/TAPE

DVD/LD

MUTING

AEP, UK

71 L IN7

RDS-DATA

53 RDS DATA

RDS-INT

FM SIG OUT

52 RDS CLOCK

43 RDS SIGNAL

AUDIO IN

L IN5

SL OUT 47

VIDEO 2

VIDEO 1

AUDIO IN

AUDIO OUT

AUDIO IN

63 L IN2

61 L REC1

62 L IN1

Q365

MUTING

IC103

VIDEO SELECT

J201

J200

VIDEO OUT

VIDEO IN

MONITOR

VIDEO 1

M.OUT

SW1 14

SW1

SW2

SW3

SW4

J401

13 V1

FRONT

SURROUND

SUB WOOFER

CENTER

11 AL IN

SW2 10

ASL IN

C OUT 39

MULTI

CH IN

VIDEO OUT

VIDEO IN

V1 OUT

Q363

16 ASW IN

15 AC IN

SW3

MUTING

VIDEO 2

DVD/LD

SW4

SW5

IC1101

DVD

DIGITAL AUDIO

I/F RECEIVER

D204

J1101

IC1102

AL OUT

D203

DVD/LD

COAXIAL

OPTICAL

IC1501

DIN2

AUDIO CODEC

IC1502

29 LIN-

L OUT1 27

L OUT2 25

L OUT3 23

R OUT3 24

27 DL IN

29 DSL IN

31 DC IN

32 DSW IN

IC1502

IC1201

SW OUT 35

DIGITAL

AUDIO DSP

LIN+

39 MCLKI

Q364

MUTING

CK OUT 13

22 KFSI0 SCK OUT 14

IC1105

BCK 14

29 BCKI2

BCKO1 20

BCK

VIDEO 2

OPTICAL

DIN1

LRCK 15

28 LRCKI2 LRCKO 19

LRCK

SDI1 18

SDO1 23

SDTO

SDTI1

SDTI2

SDTI3

SDO2 24

SDO3 25

DATAO 16

AUDIO 24

30 SDI2

D1101

20 DATA

21 CLK

35 DO

36 DI

43 CDT1

42 CCLK

41 CS

22 LATCH

69 GP8

68 GP9

IC1202

SRAM

38 CLK

37 CE

HD OUT

HD IN

34 ERROR

17 XSTATE

48 XMODE

47 CKSEL1

17 PD

S.MUTE

34 HCLK

36 HCS

Q1601,1602

Q379

MUTING

CONT

MUTING

SWITCH

32 HACN

113

XIN XOUT

56 BST

MCLK1

X1201

13.5MHz

XRST

MCLK2 12

X1101

12.288MHz

EXLOCK

IC1604

EEPROM

SDA

SCL

D1601

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

• Signal Path

+3.3V

98 97 95 96 99 100 93 94

18 19 20

10 12 13

14 15 16

CNS3

MD0

MD0 49

MD2 51

: FM

VDD

MD2

FOR

FLASH

PROGRAMMING

: CD(ANALOG)

: DVD (DIGITAL)

FLASH 1

FLASH 2

RESET

IC1601(2/3)

SYSTEM CONTROL

SP SWITCH/FLASH 1 28

FLASH 2 27

STR-K740P/K840P

– DISPLAY/POWER Section –

R-CH

J791

IC701

PHONES

POWER AMP

RY791

RY701

Q790

RELAY

DRIVE

Q703

+V OUT2 12

BOOSTER

Q701,702

LIMITER

TM602

NF2

IN2

• R-CH is omitted due to same as L-CH

• Signal Path

FRONT

D731

D733

D734

Q740

Q710

RELAY

DRIVE

R-CH

MUTING

AF POWER

PROTECT

: FM

Q705,706

CURRENT

DETECT

Q704

BOOSTER

-V OUT2 11

IC702

POWER AMP

SPEAKERS

Q653

BOOSTER

+V OUT2 12

TM601

Q651,652

LIMITER

R-CH

SURROUND

CENTER

IN2 NF2

MUTING

RY601

Q640

AF POWER

PROTECT

Q610

RELAY

DRIVE

Q655,656

CURRENT

DETECT

Q654

BOOSTER

-V OUT2 11

POWER AMP

IC501

Q503

BOOSTER

+V OUT

Q501,502

LIMITER

IN-

IN+

RY501

Q550

RELAY

DRIVE

Q540

AF POWER

PROTECT

IC1901

Q505,506

CURRENT

DETECT

Q504

BOOSTER

-V OUT

+3.3V

REG

+3.3V

+2.5V

+5V

D721

+2.5V

REG

Q722,723,725

T901

D902-905

FL101

PROTECT

SWITCH

IC1903

J405

IC401

FLUORESCENT

INDICATOR TUBE

+5V

REG

SUB

WOOFER

AUDIO

OUT

RY560

Q560

RELAY

DRIVE

IC100

FL DRIVE

Q747,748

POWER

14 29

42 31

D111-114

MUTING

SEG1-16 GRID1-12

SW1

SW2

SW3

SW4

Q107-111

LED

DRIVE

D802

-B

POWER AMP

Q691,692

-B SW

D100-104

-B

IC601

FL101

-30V

Q801

-30V REG

IC101

BUFFER

D820-823

Q100-104

LED DRIVE

RELAY

IC801

AUDIO

+7V

REG

Q471

+3.3V

D899

D898

+3.3V REG

IC802

61 62 63

29 30 31 32 26

AUDIO

-7V

REG

K740P:E/K840P:E MODEL ONLY

S901

IC807

IC1503

+5V

REG

FUSE DETECT 55

SIRCS 54

VIDEO

+5V

REG

AUDIO

+5V

IC102

VOLTAGE

SELECTOR

IC804

REMOTE

CONTROL

RECEIVER

K740P:AEP,UK

K840P:AEP,UK

VIDEO

-5V

REG

SYSTEM CONTROL

IC1601(3/3)

IC1905

IC1902

F901

TUNER

+3.3V

TUNER

+10V

+3.3V

REG

+10V

REG

AVCC 35

VCC3 84

VCC5 23

+3.3V(STBY)

IC1904

+3.3V

REG

IC1602

RESET

T902

RSTX 77

STOP 48

D910-913

Q921

AC DET

59 60

D914

Q901

D915

X1601

20.0MHz

RESET

S145

?/1

RY901

FUNCTION

KEY

FUNCTION

KEY

FUNCTION

KEY

FUNCTION

KEY

ENCODER

RELAY

DRIVE

S100-109

S110-119

S120-128

S130-137,

S143,144

RV102

MASTER

VOLUME

STR-K740P/K840P

• See page 9 for Waveform. • See page 23 for IC Block Diagrams.

3-4. Schematic Diagram – DIGITAL Section (1/2) –

IC B/D

STR-K740P/K840P

• See page 9 for Waveform. • See page 25 for IC Pin Function Description.

3-5. Schematic Diagram – DIGITAL Section (2/2) –

STR-K740P/K840P

• See page 23 for IC Block Diagrams.

3-7. Schematic Diagram – MAIN Section (1/2) –

STR-K740P/K840P

• See page 23 for IC Block Diagrams.

3-8. Schematic Diagram – MAIN Section (2/2) –

IC B/D

STR-K740P/K840P

• See page 24 for IC Block Diagrams.

3-10. Schematic Diagram – DISPLAY Section –

IC B/D

STR-K740P/K840P

• See page 24 for IC Block Diagrams.

•

: Uses unleaded solder.

3-11. Printed Wiring Board – VIDEO Section –

• See page 8 for Circuit Boards Location.

3-12. Schematic Diagram – VIDEO Section –

IC807

IC B/D

IC804

IC103

STR-K740P/K840P

• See page 8 for Circuit Boards Location.

•

: Uses unleaded solder.

3-13. Printed Wiring Board – POWER Section –

K740P:US, CND/K840P:US, CND

(CHASSIS)

EXCEPT K740P:E/K840P:E

K740P:E/K840P:E

CNP801

(Page 15)

CNP802

(Page 15)

STR-K740P/K840P

3-14. Schematic Diagram – POWER Section –

F901

2.5V/250V : EXCEPT K740P:US,CND/K840P:US,CND,MX

6.3V/125V : K740P:US,CND/K840P:US,CND,MX

STR-K740P [SONY]

相关型号：

STR-K840P

STR-L400

STR-L451

STR-L472

STR-L6400

STR-L6452

STR-L6472

STR-M3

STR-M4

STR-M6511

STR-M6525

STR-M6529