Samsung HT-AS610 User manual

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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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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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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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
A
B
C
Subwoofer : Low Sound Effect
D
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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
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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)
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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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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.
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