Sony STR-DE197 Service Manual

STR-DE197

SERVICE MANUAL

Ver. 1.5 2007. 05

Photo: Black type

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOT AL

HARMONIC DISTORTION:

(Models of area code US only) With 8 ohm loads, both channels driven, from 20 – 20,000 Hz; rated 100 watts per channel minimum RMS power, with no more than

0.09 % total harmonic distortion from 250 milliwatts to rated output.

Amplifier section

POWER OUTPUT

Models of area code US, CND Power Output a t Ster eo Mode (8 ohms 1 kHz, THD 0.7 %)

125 W + 125 W

Models of ar ea code AEP Power Output a t Ster eo Mode (8 ohms 1 kHz, THD 0.7 %)

100 W + 100 W

1) Measur ed under the f ollowing conditions: Area code Power requir ements

US, CND 120 V A C, 60 Hz AEP 230 V A C, 50 Hz

1)

US Model

Canadian Model

AEP Model

Outputs (Analog) MD/TAPE (OUT), V oltage: 500 mV

VIDEO 1 (AUDIO OUT) Impedance: 10 kilohms

Bass Boost: +8 dB at 70 Hz Tone: ±10 dB at 100 Hz and

10 kHz

FM tuner section

Tuning r ang e 87.5 – 108.0 MHz Antenna FM wire antenna Antenna terminals 75 ohms, unbalanced Inter media te frequenc y 10.7 MHz Sensiti vity

Mono: 18.3 dBf, 2.2 µV/75 ohms

Stereo: 38.3 dBf, 22.5 µV/75 ohms Usable sensiti vity 11.2 dBf, 1 µV/75 ohms S/N

Mono: 76 dB

Stereo: 70 dB Harmonic distortion at 1 kHz

Mono: 0.3%

Stereo: 0.5% Separation 45 dB at 1 kHz Frequenc y response 30 Hz – 15 kHz,

+0.5/–2 dB

Selecti vity 60 dB at 400 kHz

Frequenc y response CD, MD/TAPE, 20 Hz – 50 kHz

VIDEO 1, 2 +0/–0.5 dB (with bass

Inputs (Analog) CD, MD/TAPE, Sensiti vity: 500 mV

VIDEO 1, 2 Impedance: 50 kilohms

2) INPUT SHOR T (with bass boost and tone b ypassed).

3) W eighted netw ork, input le vel.

9-877-864-06

boost and tone bypassed)

2)

S/N

: 85 dB

(A, 500 mV

3)

)

Sony Corporation

Home Audio Division Published by Sony Techno Create Corporation

– Continued on next page –

FM STEREO/FM-AM RECEIVER

1

STR-DE197

AM tuner section

Tuning range

Models of area code US, CND With 10-kHz tuning scale: 530 – 1,710 kHz With 9-kHz tuning scale: 531 – 1,710 kHz

Models of area code AEP With 9-kHz tuning scale: 531 – 1,602 kHz

Antenna Loop antenna Intermediate frequency 450 kHz Usable sensitivity 50 dB/m (at 1,000 kHz or

999 kHz) S/N 54 dB (at 50 mV/m) Harmonic distortion 0.5 % (50 mV/m,

400 Hz) Selectivity At 9 kHz: 35 dB At 10 kHz: 40 dB

4) 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 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.

4)

General

Power requirements Area code Power consumption

US, CND 120 V AC, 60 Hz AEP 230 V AC, 50/60 Hz

Power consumption Area code Power consumption

US 190 W CND 270 VA AEP 210 W

Power consumption (during standby mode)

AC outlets Area code AC outlets

US, CND 1 switched, 120 W/1A MAX AEP 1 switched, 100 W MAX

Dimensions 430 × 132.5 × 302 mm

Mass (Approx.) 7.0 kg (15 lb 7 oz)

0.5 W

(17 × 5 1/4 × 11 7/8 inches)

including projecting parts

and controls

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 A C 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 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-operated AC 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)

To Exposed Metal Parts on Set

AC

0.15 µF

1.5 k

Ω

voltmeter (0.75 V)

Supplied accessories

FM wire antenna (1) AM loop antenna (1) Remote commander RM-U185 (1) R6 (size-AA) batteries (2)

Design and specifications are subject to change without notice.

•Abbreviation CND: Canadian model

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 P ARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

Earth Ground

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

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!!

LES COMPOSANTS IDENTIFIÉS P AR 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 PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

2

STR-DE197

MODEL IDENTIFICATION

— BACK PANEL —

MODEL PART No.

US 4-253-299-0s AEP 4-253-299-1s CND 4-253-299-3s

•Abbreviation CND: Canadian model

Part No.

GENERAL

This section is extracted from instruction manual.

4

STR-DE197

5

STR-DE197

6

SECTION 2

e

DISASSEMBLY

Note : This set can be disassemble according to the following sequence.

SET

2-1. CASE

(Page 7)

STR-DE197

2-2. FRONT PANEL SECTION

(Page 8)

Note : Follow the disassembly procedure in the numerical order given.

2-3. BACK PANEL

(Page 8)

2-1. CASE

1

two screws

(case 3 TP2)

2-4. MAIN BOARD

(Page 9)

2

two screws

(case 3 TP2)

4

cas

3

two screws

(case 3 TP2)

7

STR-DE197

2-2. FRONT P ANEL SECTION

3

CNP801

4

two screws

(BVTP3 x 8)

2

CNS3

6

front panel section

2-3. BACK P ANEL

3

CNP901

2

CNP905

8

back panel (DE10)

1

CNS2

5

six screws (BVTP3 x 8)

4

three screws

(BVTP3 x 8)

6

two screws

(BVTP3 x 8)

7

two screws

(BVTP3 x 8)

5

two screws

(BVTP3 x 8)

1

connector

8

2-4. MAIN BOARD

d

4

two screws

(+BV SUMITITE (B3))

7

screw

(+BV SUMITITE (B3))

3

CNP904

1

CNP902

2

CNP903

5

two screws

(+BV SUMITITE (B3))

6

(+BV SUMITITE (B3))

screw

8

MAIN boar

STR-DE197

9

STR-DE197

f

SECTION 3

TEST MODE

Fluorescent Indicator T ube T est 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 depressing the [VIDEO 1], [VIDEO 2], [MD/TAPE], [CD] and the [TUNER] buttons simultaneously, press the ?/1 button to turn on the main power.

2. The FL tube will illuminate in half light on. The following display will be repeated whenever the five function buttons are pressed.

• Operation of function buttons

all light on half light on 1 half light on 2 all light of

3. Press any button other than the function buttons to release the check mode.

AUTO-BETICAL Check Mode (AEP model)

To auto-scanning and memories of RDS station.

Procedure:

1. While depressing the [MEMORY/ENTER] button, press the button to turn on the main power.

2. The message “AUTO-BETICAL SELECT” are scrolled for a moment and the receiver starts scanning.

?/1

AM T uning Interval Selection Mode (US, Canadian model)

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

Procedure:

1. While depressing the [PRESET TUNING +] button or the [TUN- ING/CHAR +] button, press the ?/1 button to turn on the main

power.

2. Either the message “9k STEP” or “10k STEP” appears for a moment and select the desired step.

Software Version Display Mode

The software version is displayed.

Procedure:

1. While depressing the [SPEAKER B] and the [VIDEO 1] buttons simultaneously, press the ?/1 button to turn on the main power .

2. The destination and the software version are displayed for a moment.

ex.) US, Canadian model : U AEP model : CE *.

*.**

**

Software version Area

10

STR-DE197

SECTION 4

DIAGRAMS

4-1. IC PIN DESCRIPTION

• IC201 µPD78045FGF-134-3B9 (SYSTEM CONTROLLER, FL DISPLAY DRIVER)

Pin No. Pin Name I/O Pin Description

1 to 7 DIG7 to DIG1 O Digit drive signal output to the vacuum fluorescent display (FL201).

8 +5V — Power supply pin (+5 V)

9CLOSerial clock signal output to FM/AM tuner pack. 10 DO O Serial data signal output to FM/AM tuner pack. 11 DI I Serial data signal input from FM/AM tuner pack. 12 CE O Serial chip enable signal output to FM/AM tuner pack. 13 VOL DATA O Serial data signal output to sound control IC. 14 VOL CL O Serial clock signal output to sound control IC. 15 RDS DATA I RDS data signal input from FM/AM tuner pack. (AEP model only) 16 PROTECTOR I Overload detection signal input 17 RESET I Reset signal input 18 TUNED I TUNED indicator detection signal input from FM/AM tuner pack. 19 STEREO I STEREO indicator detection signal input from FM/AM tuner pack. 20 AVSS — Analog ground 21 VERSION I Destination select signal input (Fixed at H: US, Canadian model, L: AEP model)

22 FM SIGNAL OUT I

23 to 28 AD6 to AD1 I Function keys signal input

29 AVDD — A/D converter power supply pin (+5 V) 30 AV.REF — A/D converter reference voltage input (+5 V) 31 — — Not used. (Connect to AV.REF pin in this set) 32 OPEN — Not used. (Open) 33 GND — Ground 34 X1 I Master clock input (4.19 MHz) 35 X2 O Master clock output (4.19 MHz) 36 REC SW1 O VIDEO 1 ON/OFF signal output 37 REC SW2 O MD/TAPE ON/OFF signal output

38, 39 VOL A, VOL B I Master volume JOG data input A, B

40 FUNC.MUTE O Not used. (Fixed at L in this set) 41 CK O Serial clock signal output to electronic volume IC. 42 DATA O Serial data signal output to electronic volume IC. 43 STB O Serial data strobe signal output to electronic volume IC. 44 SYS.POWER I System power signal input 45 AC MUTE O A-Class mute signal output 46 RDS INT I RDS clock signal input from FM/AM tuner pack. (AEP model only) 47 STOP I Stop signal input from reset/+5.6V regulator IC. 48 VSS — Ground 49 SIRCS I Sircs signal input from remote control receiver IC. 50 TUNER MUTE O Muting control signal output to FM/AM tuner pack. 51 — — Not used. (Open) 52 +5V — Power supply pin (+5 V) 53 BASS B. LED O BASS BOOST LED drive signal output 54 SPK A LED O SPEAKER A LED drive signal output 55 SPK B LED O SPEAKER B LED drive signal output

FM/AM signal meter voltage detection signal input from FM/AM tuner pack. (AEP model only)

11

STR-DE197

Pin No. Pin Name I/O Pin Description

56 RY R1 COIL O Power relay (12V) drive signal output 57 RY POWER O AC power relay (9V) drive signal output 58 RY A O Speaker A relay (12V) drive signal output 59 RY B O Speaker B relay (12V) drive signal output 60 RY HP O Phones relay (12V) drive signal output 61 — — Not used. (Open)

62 to 70 S15 to S7 O Segment drive signal output to the vacuum fluorescent display (FL201).

71 VLOAD — Power supply pin (–24 V) 72 to 77 S6 to S1 O Segment drive signal output to the vacuum fluorescent display (FL201). 78 to 80 DIG10 to DIG8 O Digit drive signal output to the vacuum fluorescent display (FL201).

12

4-2. CIRCUIT BOARDS LOCATION

d

POWER board

H.PHONE board

STR-DE197

AC OUTLET board

MAIN board

DISPLAY board

FUNCTION KEY boar

VOLUME board

13

STR-DE197

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

for schematic diagram:

• 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/ specified.

f

•

: internal component.

4

W or less unless otherwise

• 2 : nonflammable resistor.

• 1 : fusible resistor.

• C : panel designation.

Note:

The components identified by mark 0 or dotted line with mark 0 are criti- cal 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.

• A : B+ Line.

• B : B– Line.

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

• Circled numbers refer to waveforms.

• Signal path.

F : TUNER (FM/AM) L : VIDEO (AUDIO) J : CD (ANALOG)

• Abbreviation CND : Canadian model.

for printed wiring boards:

• X : parts extracted from the component side.

f

•

: internal component.

• : Pattern from the side which enables seeing.

• Abbreviation

CND : Canadian model.

C

Q

B

E

These are omitted.

Q

BCE

Q

B

C

These are omitted.

E

14

4-3. BLOCK DIAGRAM — MAIN SECTION —

STR-DE197

ANTENNA

FM 75Ω

COAXIAL

AM

TN1

FM/AM TUNER PACK

10V

L CH

R CH

MUTE

CE

CLOCK

DATA

DO

TUNED

STEREO

RDS INT

RDS DATA

FM SIGNAL

VDD3.3V

AEP MODEL

+10V

R-CH

US,CND MODEL

LEVEL SHIFT

Q905,906

3.3V

IC906

10 8 12 11

LEVEL SHIFT

5 6

2 3

IC905

LEVEL

3

SHIFT

7

US,CND MODEL

MUTE

TUNED

STEREO

VIDEO 1,MD/TAPE

SOUND CONTROL

IC401

TUNER L

9

CE CL

DI

DO

J801 (1/2)

-1 L

INCD

-2

R

-5 L

INMD/TAPE

-6

R

J802 (1/2)

-1 L

AUDIO INVIDEO 2

-2

R

-5 L

AUDIO INVIDEO 1

-6

R

R-CH

CD L

7

MD L

5

VIDEO 2

3

VIDEO 1

1

REC L

VOL L

TREBLE

L

MIDDLE

L

BASS

L

OUT L

CONTROL

CLK

32 3 1 1 2

29

20 3 2

DATA

AUDIO AMP

IC403

ELECTRONIC

VOLUME

IC402

L IN

VOLUME

CONTROL

CLK

DATA

8 9 1015 14

STB

L OUT

SELECT

IC404

4 3

13 5

Q474

INV.

Q424

INV.

R-CH

J801 (2/2)

J802 (2/2)

R-CH

-3 L

-4

R

-3 L

-4

R

OUT

AUDIO OUT

ST-L

ST-R

MD/TAPE

VIDEO 1

LED

DRIVER

Q206

D203 BASS

BOOST

BASS B.LED

VOL A

VOL B

3853 39

1 3

RV201

MASTER VOLUME

DI

CE

CL

DO

MUTE

TUNED

STEREO

15 46 19 18 50 12 10 11 9 13 37 36

TUNED

STEREO

RDS INT

RDS DATA

FM SIGNAL OUT

X1

35

X201

4.19MHz

CE

DO

TUNER MUTE

X2

CONTROL

RECEIVER

DI

49 71 2877 - 72,70 - 62 7 - 1,80 - 78 27 26 25 24 44 23 54 1734

1

REMOTE

IC202

CL

SIRCS

VLOAD

-24V F1 F2

S1

I

S15

FL201

VACUUM

FLUORESCENT

DISPLAY

DIG1

1422

VOL CL

VOL DATA

SYSTEM CONTROLLER,

FL DRIVER

IC201

I

DIG10

AD1

AD2

KEY MATRIX

S204-213,

215-236,

238,239

AD3

AD4

AD5

41 42 43

CK

STB

DATA

SYS.POWER

AD6

S201 S202 S203

I

/

I

AB

SPEAKER

REC SW2

SPK A LED

LED

DRIVER

Q204

D205 D206

AB

SPEAKER

REC SW1

SPK B LED

55

LED

DRIVER

Q205

RY HP

RY A RY B

PROTECTOR

RY R1 COIL

RY POWER

STOP

RESET

60 58 59 16 56 57

47

RESET

SWITCH

Q201,202

A

HP RELAY SPK A RELAY SPK B RELAY PROTECTOR SIG R1 COIL RELAY POWER RELAY

STOP SIGNAL

• Signal path : TUNER (FM/AM) : VIDEO (AUDIO) : CD (ANALOG)

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

• Abbreviation CND : Canadian model

POWER

SECTION

(Page 16)

STR-DE197

15 15

STR-DE197

4-4. BLOCK DIAGRAM — POWER SECTION —

MAIN

SECTION

(Page 15)

A

ST-L

ST-R

HP RELAY

SPK A RELAY

SPK B RELAY

PROTECTOR SIG

R1 COIL RELAY

R-CH

RY783

R-CH

J803

PHONES

L

R

L

R

A

SPEAKERS

IMPEDANCE

USE 8-16Ω

B

TM801

PRE DRIVER

IC601

PRE

DRIVE

IN 1

6

DRIVE

BIAS

+VOUT

2

-VOUT 3

VCC

VEE

14 15

-B

+B

-B

POWER AMP

Q701-704

CURRENT

DET

Q705,706

R-CH

PROTECT

SWITCH

Q784-786

RELAY DRIVER

Q903

RECT D907

D786

D787

D789

RELAY DRIVER

RY981

Q781

Q782

Q783

T901

POWER

TRANSFORMER

RY781

RY782

POWER RELAY

STOP SIGNAL

AEP MODEL

-5V

-5V REG

3 2

IC907

-24V

+5V

+3.3V

+10V

RY+B

+5.6V

+3.3V REG

3 1

IC904

-24V REG Q904

+5V REG

3 1

IC902

+10V REG

3 1

IC903

+5.6V

REG

Q902

OUT C V+

8

RESET VSA

2

VSC

RESET/+5.6V REG

IC901

RELAY DRIVER

Q901

53

VSB/SESIN

RECT

D908-911

F1

-24V D913

F2

RY982

RECT

D901-904

T902

POWER

D905 D906

67

TRANSFORMER

F901

F902

CNJ901

OUTLET

SWITCHED 120W/1A MAX

AC 120V 60 Hz (US,CND)

SWITCHED 100W MAX

~

• Signal path : TUNER (FM/AM)

AC

(AEP)

AC IN

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

• Abbreviation CND : Canadian model.

STR-DE197

1616

4-5. PRINTED WIRING BOARDS — MAIN SECTION — • Refer to page 13 for Circuit Boards Location and page 14 for Common Note on Printed Wiring Boards.

STR-DE197

A

B

C

D

E

1

TN1

(Page 20)

CNS2

TP4

234567891011 12 13 14

RR751

L751

JWH3

JW471

JW479

JW456

D751

R785

D782

JW514

CC751

JW508

JW513

JW455

C752

TM801

JW461

JW472

JW465 JW466

R760

RY782

R761

JW457

JW467 JW459 JW460

R792

R793

JW507

JW480

JW509

JW512

CNJ901

C917

C791

CNP902

R915

CNP901

CN905

C916

B901

D911

D909

D910

D908

R903

CNP905

T901

EP901

D982

R908

R907 R909

D901

C910

R902

D902

F902

F901

CNP801

D789

RY982

CNS3

CNP904

R787

R786

JW498

JW495

C905

R906

Q902

C908

JW485

R912

R910

JW454

D981

JW452

RY781

JW499

JW450

R913

D781

IC901

JW477

R784

R905

C903

CNP903

Q903

C906

C907

JW486

C904

C911

JW488 JW489

Q781

C921

D913

R781

R914

D787

D786

R782

TP1

JW487

IC902

R783

JW490

C918

CN801

C923

C922

T902

JW492

JW491

JW493

(Page 20)

C902

D904

D903

C901

D905

JW458

R916

R901

JW453

R923

JW478

C920

Q782

R904

JW483

Q904

Q783

Q901

RY981

R917

D906

C909

R911

JW482

JW445

IC907

RR702

CC702

RR701

CC701

JW481

R754

C751

R759

JW468

C915

JW462

C913

C912

D907

JW476

JW474

JW473

JW475

C919

D912

Q756

R757

C754

Q755

R758

R756

R755

R752

R751

Q751

JW470

JW469

JW449

R753

Q752

C753

Q754Q753

JW505

C914

IC906

C469

JW419

C419

JW401

IC903

R483

JW418

JWH1

C458

JW406

C924

R484

Q701

JW439

R703

Q702

CC457

JW426 JW428

R485

R706

R457

JW412

JW429

JW484

R458

JW411

JW414

JW431

JW430

C408

C424

C474

J802

D914

Q704

R408

JW503

C651

R705

JW501

C703

R407

JW415

R424

C601

C701

CC407

C460

JW405

JW417

JW520

R471

R472

C606

Q474

R460

JW407

R427

IC404

R474

JW464 JW416

Q424

JW448

R410

IC403

R459

C410

R604

R473

C475

JW442 JW451

CC459

R422

R421

C604

IC601

R697

R708

R462

JW446

R409

C608

R423

JW516

C602

CC409

C782

C928

R602

C603

R478

R461

JW504

C652

JW502

R477

Q705

CC461

C462

R652

C605

C425

R709

CC411

C781

R789

C654

R603

R412

C412

R428

JW494

JW518

R653

C704

R654

R411

Q786

L701

R707

C705

C656

C655

R712

R714

Q706

R788

CC752

D788

C653

C658

R790

R711

RR752

Q785

D785

D784

JW447

C930

JW515

R710

C755

R713

JW506

C929

R762

JW500

D783

R764

R763

Q784

R794

R929

R930

JW444

R795

R791

JW443

JWH2

RY783

D701

JW496

JW511 JW510

J801

JW400

JWH5

R402

C454

R426

C465

C464

C472

R476

C426

C485

R468

C607

C476

R463

R454

C404

C422

R404

CC453

R453

JW404

C490

R926

C413

R415

C421

JW420

JW517

R417

R467

C471

CC451

R401

CC401

R451

C927

C926

C931

JWH4

JW422

Q906

R946

R947

JW425

Q905

JW438

JW901

R918

R919

JW421 JW436

JW435

JW434

C941

IC905

C452

IC904

JW413

D915

R941

R944

JW433

R481

C940

R920

JW900

JW432

C402

R452

R942

C942

R482

CNS1

R465

R466

JW423

R943

JW427

R945

R475

R425

C470

C463

C484

R413

C420

R605

R656

R403

R418

R655

IC401

C414

C702

C456

R414

CC403

IC402

C657

C483

C415

R455

C416

CC455

JW410

R416

JW424

R704

C418

C468

R701

R702

Q703

R456

C417

JW437

CC405

C466

R406

R606

R405

R464

C406

C467

JW497

JW441 JW440

JW403

JW402

C925

STR-DE197

F

G

• Semiconductor Location

Ref. No. Location D701 D-6

D751 D-6 D781 E-9 D782 C-6 D783 C-6 D784 D-6 D785 D-6 D786 E-9 D787 E-9 D788 D-6 D789 D-10 D901 B-8 D902 B-9 D903 D-9 D904 B-8 D905 B-8 D906 B-8

( ) : AEP model only

Ref. No. Location Ref. No. Location Ref. No. Location D907 D-7

D908 D-11 D909 D-11 D910 D-11 D911 D-11 D912 E-8 D913 D-9 D914 C-4 (D915) D-2 D981 E-9 D982 B-11

IC401 C-3 IC402 D-3 IC403 D-5 IC404 C-5 IC601 E-5

IC901 C-9 IC902 D-9 IC903 C-4 IC904 C-2 (IC905) E-2 IC906 E-2 (IC907) E-8

Q424 C-5 Q474 C-5 Q701 E-4 Q702 F-4 Q703 E-4 Q704 E-4 Q705 E-5 Q706 E-6 Q751 E-7

J803

Q752 E-7 Q753 E-7 Q754 E-8 Q755 E-7 Q756 E-7 Q781 D-9 Q782 E-8 Q783 E-8 Q784 D-6 Q785 D-6 Q786 D-5 Q901 B-8 Q902 B-9 Q903 D-9 Q904 E-8 (Q905) E-2 (Q906) D-2

17 17

STR-DE197

4-6. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 14 for Common Note on Schematic Diagram and page 22 for IC Block Diagrams.

R481

C483

C490

R482

R926

IC401

R428

R427

IC B/D

C463

C464

C465

C413

C414

C415

C416

C417

C466

C467

C468

C418

C419

C469

R463

R413

R414

R464

R466

R416

R465

R415

C485

C470

IC B/D

IC402

C420

C422 C472

C421

R418

C484

C471

R417

R467

R468

R484

R483

J801

R451 R452

CC451

R401 R402

CC401

R453 R454

CC453

R403 R404

CC403

R455 R456

CC455

R405 R406

CC405

J802

R457 R458

CC457

R407 R408

CC407

R459 R460

CC459

R409 R410

CC409

R461 R462

CC461

R411 R412

CC411

C452

C402

C456

C406

C458

C408

C462

C412

C454

C404

C460

C410

C426

C476

C657

C607

R655

R605

IC B/D

IC601

R602 R652

C602

C601 C651

R656R606

R697

C608

C603 C653

C652

R604

C654

C604

C605 C655

R603 R653

R654

C606 C656

C930

C658

R930

R929

C929

IC403

R476

R426

IC904

C927

TN1

CNS1

CNS2

R425

C926

R475

C931

R918

IC404

R477

R919

R920

R478

JW900

Q474

R474

R424

Q424

LEVEL SHIFT

R421

IC906

C425

R422

R423

R472

R473

C474C424

(Page 19)

C942

C475

R471

C928

D914

Q905

C925

Q906

IC903

R485

C940R944

LEVEL SHIFT

IC905R942

R941 C941

D915

C924

R943

R945

R947R946

STR-DE197

JW901

(Page 21)

1818

4-7. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 14 for Common Note on Schematic Diagram and page 22 for IC Block Diagrams.

STR-DE197

(Page

18)

C701

C751

Q701

Q751

R701 R702

Q702

R703

Q752

R704

R753

R752R751

R755

R754

R705

C702

R706

C703

C753

R756

C752

Q703

Q753

R708

Q704

Q754

R707

R757

R758

Q706

C704

C754

R709

R710

R760

R759

Q755

R711

R761

Q705

Q756

D701

D751

R712

R762

C705

C755

R784

L701

R714

R713

R763

R764

L751

D784 D785

R785

R795

Q784

R790

R794

R789

R791

R792

R793

C782

C781

RY781

D781

RY782

D782

RY783

D783

R788

Q785

Q786

Q783

Q781

Q782

R783

R782

R781

D786

R786

D789

D787

R787

D788

RR701 CC701

CC751

RR751

CNS3

TM801

RR702 CC702

CC752

RR752

(Page 21)

CN801

CNP801

J803

C923

EP901

IC907

IC902

C911

C791

C922

R923

C921

IC B/D

C920

C910

R911

C919

D913

Q904

R910

IC901

C909

C908

R917

D912

R916

R912

R907

R909 R908

C907

C914

C918

D909

D911

C906

C904

Q902

D907

R906

C903

D910

C905

D908

C915

R905

R904

C912

C913

C916

C917

R901

Q901

R915

R913

D901

D902

D903

D904

D905

D906

RY981

D981

C901

C902

R914

Q903

T902

R902

RY982

D982

R903

CNP903

CNP904

B901

F901

F902

CN905

CNP901

CNP905

T901

CNP902

CNJ901

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.

STR-DE197

19 19

Sony STR-DE197 Service Manual

TABLE OF CONTENTS

GENERAL

DISASSEMBLY

2-1. CASE

front panel section

TEST MODE

DIAGRAMS