SONY STRDE815G - Service Manual Immediate Download

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SERVICE MANUAL

MICROFILM

Photo : STR-DE815G

STR-D760Z/DE815G

US Model

STR-D760Z/DE815G

Canadian Model

E Model

Australian Model

PX Model

STR-DE815G

SPECIFICATIONS

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FM STEREO FM-AM RECEIVER

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TABLE OF CONTENTS

1. SERVICING NOTE .......................................................... 4

2. GENERAL .......................................................................... 5

3. DISASSEMBLY

3-1. Front Panel .......................................................................... 24

3-2. Balance Board, Display Board and Volume Board ............. 24

4. ELECTRICAL ADJUSTMENTS ............................... 25

5. DIAGRAMS

5-1. Circuit Boards Location ...................................................... 27

5-2. Block Diagrams

· Dolby Surround Section .................................................. 29

· OSD Section .................................................................... 31

· Power Amp Section ......................................................... 33

· Panel Section ................................................................... 35

· Power Section .................................................................. 37

5-3. Printed Wiring Board -- Dolby Surround Section -- ........ 40

5-4. Schematic Diagram -- Dolby Surround Section -- ........... 43

5-5. Schematic Diagram -- OSD Section -- ............................. 47

5-6. Printed Wiring Board -- OSD Section -- .......................... 51

5-7. Printed Wiring Board -- Power Amp Section -- ............... 55

5-8. Schematic Diagram -- Power Amp Section -- .................. 59

5-9. Printed Wiring Board -- Panel Section -- ......................... 63

5-10. Schematic Diagram -- Panel Section -- ......................... 67

5-11. IC Block Diagrams ........................................................... 70

5-12. IC Pin Functions ............................................................... 75

6. EXPLODED VIEWS

6-1. Case Section ........................................................................ 82

6-2. Front panel Section ............................................................. 83

6-3. OSD Board Section ............................................................. 84

6-4. Chassis Section ................................................................... 85

7. ELECTRICAL PARTS LIST ........................................ 86

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.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!!

LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE

!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.

SAFETY-RELATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY MARK

! OR DOTTED LINE

WITH MARK

! 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.

SAFETY CHECK-OUT

After correcting the original service problem, perform the follow-

ing 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.

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 microampers). Leak-

age 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 pas-

sive VOM that is suitable. Nearly all battery operated digital

multimeters that have a 2V AC range are suitable. (See Fig. A)

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

To Exposed Metal

Parts on Set

0.15

µF

1.5k

voltmeter

(0.75V)

Earth Ground

MODEL IDENTIFICATION

-- BACK PANEL --

Parts No.

Model

4-989-884-6

4-989-884-0

4-989-884-1

4-989-884-2

4-989-884-3

4-989-884-4

D760Z

: US model

DE815G : US model

DE815G : Canadian model

DE815G : E, PX model

DE815G : Singapore, Malaysia model

DE815G : Australian model

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ALL CLEAR

Mode which erases all the user memories registered in this unit and

sets to setting at shipment.

Procedure:

1. With the power turned OFF, press the POWER button while

pressing the MODE button, AUDIO FUNCTION > and

VIDEO FUNCTION > button simultaneously to turn ON the

power.

2. ALL CLEAR ! will be displayed on the fluorescent indicator

tube, and ALL CLEAR will be executed.

FACTORY SET

Mode which sets the memory of the unit to the setting of adjust-

ment and check at factory. (Not used for servicing.)

Procedure:

1. With the power turned OFF, press the POWER button while

pressing the MODE button and AUDIO FUNCTION > button

simultaneously to turn ON the power.

2. FACTORY SET will be displayed on the fluorescent indicator

tube, and FACTORY SET will be executed.

Note: In case you return the unit to the customer, do not perform

FACTRY SET. If you do it, perform ALL CLEAR.

Fluorescent indicator tube, LED all lit mode

Procedure:

1. With the power turned OFF, press the POWER button while

pressing the MODE button and VIDEO FUNCTION > button

simultaneously to turn ON the power.

2. The fluorescent display tubes and LEDs will all light up. Re-

lease the buttons in the order of VIDEO FUNCTION > , and

MODE .

3. The Fluorescent indicator tube display changes as follows by

pressing the AUDIO FUNCTION < , AUDIO FUNCTION > .

(Pressing the other buttons will exit this mode.)

SECTION 1

SERVICING NOTE

Adjustment of OSD Screen Position

The position of the screen can be adjusted freely to correct the de-

viation of the OSD screen caused by the monitor type that users are

using.

1. Move the cursor of the remote commander supplied as an acces-

sory, and display the OSD screen.

2. Click the SET UP of the OSD screen.

3. Next click TV SET.

4. Next click GRAPHIC POSITION SET.

5. The screen for adjusting the OSD screen position will be dis-

played. Adjust the position with the remote commander supplied

as an accessory.

6. Click EXIT to end.

AM Tuning Step 9 kHz/10 kHz Selection

Method:

1. Turn ON the power, set the AUDIO FUNCTION to AM, and

turn OFF the power.

2. While pressing the TUNING + button or PRESET TUNING +

button, press the POWER button.

3. "AM 9K STEP" or "AM 10k STEP" will be displayed on the FL

display tube.

Key Check Mode

Method:

1. With the power OFF, while pressing the MODE button and

AUDIO FUNCTION < button together, press the POWER but-

ton.

2. "KEY TEST [24]" will be displayed on the FL display tube.

3. The [XX] number is counted down each time a button other than

POWER is pressed until it becomes [00].

(Buttons pressed once will not be counted again when pressed

another time.)

4. When the number becomes [00], press the POWER button and

exit the mode.

Fluorescent indicator tube and all LEDs are OFF

Partial lighting of fluorescent indicator tube 2, LEDs are OFF *1

Partial lighting of fluorescent indicator tube 1, LEDs are OFF *1

Fluorescent indicator tubes, LEDs are all lit

ENHANCED

PRO LOGIC

MONO

MOVIE MUSIC 12

SPORTS GAME

STEREO

MONO

SML THEATER SML HALL ACOUSTIC KARAOKE ARENA STADIUM HIGH MEMORY

· Press AUDIO FUNCTION < button or AUDIO FUNCTION > button.

*1 Those other than the POWER LED go OFF.

4. To exit the mode, press the POWER button to turn OFF the power.

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SECTION 2

GENERAL

This section is extracted from

instruction manual.