Samsung HT-AS610 Manuale utente

AV RECEIVER SYSTEM

MODEL: HT-AS610

SERVICE Manual

AV RECEIVER SYSTEM Features

* Digital AV Receiver

* Dolby Pro Logic II

* DTS (Digital Theater Systems)

* SFE(Sound Field Effect) Using

24bit Audio DSP

- Confidential -

MODEL : HT-AS610

©Samsung Electronics Co.,Ltd. MAR. 2006

Printed in Korea

Code no. AH68-01893D

ELECTRONICS

Ch1 Precautions

1-1. Safety Precautions 1-1

1-2. Servicing Precautions 1-2

1-3. Precautions for Electrostatically

Sensitive Device (ESDs) 1-3

1-4. Special Precations and Waring

Lables for Laser Products 1-4

1-5. Special Precautions for HDD 1-5

INDEX

Ch2 Product Descriptions

1. Product Feature 2-1

2. Specifications 2-2

3. Notes on Discs 2-3

4. Accessories 2-4

Ch3 Product Functions

1. SPK Connection & Setup 3-1

2. Main Functions 3-2

3. New Functions 3-3

Ch4 Adjustments

Protecton Mode Explanation 4-1

Ch5 How to disassemble

How to disassemble 5-1

Ch6 Troubleshooting

1. No Power 6-1

2. No Output 6-2

Ch7 Exploded View & Parts List

1.Total Exploded View 7-1

2. Parts List 7-5

Ch8 Electrical Parts List

Electrical Parts List 8-1

Ch9 Block Diagram

Block Diagram 9-1

Ch10 Wiring Diagram

Wiring Diagram 10-1

Ch11 PCB Diagram

1. MAIN 11-1

2. AMP 11-2

Ch12 Schematic Diagram

1. AMP 12-1

2. DSP 12-2

3. FRONT 12-3

4. MICOM 12-4

5. SMPS 12-5

Ch13 Circuit Description

Circuit Board Description 13-1

Ch14 HTS Reference

1. HTS (Home Thater Sytsem) 14-1

2. About “Sound” 14-2

3. 5.1 Channel Sound 14-3

4. HTS Sonud Format 14-4

5. HTS Devices 14-5

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Samsung Electronics 14-1

1. Definition of Home Theater

What is Home Theater?

Home theater system is the proper combination of audio and video system at home which enable

you to enjoy more dynamic sound and vivid image in a wide screen of movie theater.

This effect can be implemented with wide screen, high quality projector, Dolby digital and DTS

sound effects.

Now you can enjoy surround sound field wieh realistic presence and Dolby digital at your home as if

you are in a movie theater.

As time goes by, home theater system has become recognized as a system that helps listen sound

closer to the original sound rather than video. In this 21st century, most movie and animation films

will be produced for home theater and reproduce sound closer to original sound.

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14-2 Samsung Electronics

2. Concept of Sound

What is Sound Range?

People can listen to the sounds with frequency between 200Hz~20.000Hz

As time goes by, home theater system has become recognized as a system that helps listen sound

closer to the original sound rather than video. In this 21st century, most movie and animation films

will be produced for home theater and reproduce sound closer to original sound.

What is Sound Pressure?

* A measure of how well speaker converts electric signal it receives to sound

* Unit of sound pressure is decibel and mainly measures the size of sound at 1 m away after

sending 1 W power from speaker.

❋High sound pressure doesn't necessary mean good performance

What is Timbre?

* How well the unique sound of musical instrument is expressed

* Better if violin and cello sound are accurately distinguished. Good timbre means high quality.

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Samsung Electronics 14-3

2. Concept of Sound

By reproducing standard channels used during soundtrack recording of movie,

it outputs 3 sounds of movie (words / music / sound effects) from 6 different

speakers and provides surround dynamic sound effects so that you can even

feel the direction of sound.

5 channel

0.1 channel

* Power amp is embedded in active sub woofer

* Require separate amp since there is no amp in passive sub woofer

❋No difference in performance of active sub woofer and passive sub woofer

Center Speaker :Voice ( over 95%)

Front Speaker (L/R) : Music Sound

Rear Speaker (L/R) : Sound Effect

Subwoofer : Low Sound Effect

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14-4 Samsung Electronics

4. Home Theater Sound Format

Overview

* As home theater has recently penetrated deep into consumer's market in Korea, Dolby digital and

DTS, the sound format for 5.1 channel home theater, are the mainstream in the market.

* Expanded type of 6.1 channel or 7.1 channel are recently released in the market, but there are

not much DVD title that can support expanded type.

Home theater format...

Stereo

Is used in general audio and analog TV and and consists of 2

channels, at front left/right

Dolby Surround

In this sound format, 4 audio channels (Front left / right / center /

surround) are entered in 2 channel and reproduce in 4 channels

through device with Dolby decoder.

Center channel is not completely separated so that it forms virtual

center channel with help of front left / right channel.

1958 1Ch Mono/ 2Ch Stereo

1982 Matrix 3Ch Dolby Surround

1987 Matrix 4Ch Dolby Pro Logic

1995 5.1Ch Dolby Digital

1997 DTS (Digital Theater System)

1999 Matrix 6.1Ch Dolby Digital Sourround EX

AS600_14Ref(L) 2005.7.12 6:8 AM Page 14-4

Dolby Prologic

– Provide 4 channels (Front Left/Right/Center/Surround)

– Reinforced from Dolby Surround

① Center channel is completely separated

➁ Separation between channels gets higher

Dolby Digital

– Provide completely separate 5.1 channel

(Front Left/Right, Center, Rear Left/Right, Sub Woofer)

– Main sound format of home theater

– Reinforced from Dolby Prologic

– Rear surround left/right channels give different sound

– Support sub woofer reinforcing Bass

❋Dolby Digital is also called AC-301

AC-3(Audo-Coding-3) : 3rd digital audio coding Dolby Research Center has

developed.

DTS(Digital Theater System)

– Technology of providing 5.1 channel sound, higher quality than

Dolby Digital

– Home appliance produced to apply system installed at 1,800 the-

aters throughout the world.

✪ Comparison of DTS and Dolby Digital(DD)

Samsung Electronics 14-5

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14-6 Samsung Electronics

Dolby Prologic

– Latest technology reproducing music CD recorded in 2 channel,

cassette tape and video tape made in Dolby Prologic into 5.1

channel.

– Surround speaker that makes you feel more natural, deeper and

wider than existing Dolby Prologic.

(Ex-Profound sound adds more realistic presence from 5 speakers

and sub woofer when you watch soccer match.)

DTS (Digital Theater System)

THX (Abbreviation ofTomlison Holman's Experiment)

– THX is not a sound format like a Dolby or DTS, but is a standard of sound. Like standard KS mark

in Korea, THX means good certification in sound effects.

– THX issues certificate when a movie, theater or home theater system satisfy proper standards.

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Samsung Electronics 14-7

5. Home Theater Components

Amp / Receiver

Amp: Device of raising output after tuning signal of CD player or DVD into

unique sound timbre

Various Types and Usages of Amplifier

- For Listening to Music ¡æ For Music+ Movie

- ① AV Receiver (Dedicated Lamp for Home Theater) : Preferred by Home Theater mania.

➁ DVD Receiver (DVD Player+ Amp+ Radio Tuner) : Suitable for beginner of Home Theater

- Many A/V companies adopt DVD receiver type for expansion of easy and economic Home Theater

system.

Popular Korean Products

- Popular for those who pursue relatively good sound quality at low price

- Product priced between 400,000 won~600,000 won are popular.

AS600_14Ref(L) 2005.7.12 6:8 AM Page 14-7

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