Dolby Laboratories STAV-3770, 31-3043 service manual PCB Connection Diagram, Mother Assy, Side a

Page 28

 

1

 

2

 

3

 

4

 

 

 

 

 

 

VSX-D307

4. PCB CONNECTION DIAGRAM

4.1 MOTHER ASSY

NOTE FOR PCB DIAGRAMS :

1. Part numbers in PCB diagrams match those in the schematic

Adiagrams.

2.A comparison between the main parts of PCB and schematic diagrams is shown below.

Symbol In PCB

Symbol In Schematic

Part Name

Diagrams

Diagrams

 

 

B C E B C E

 

B C E

 

Transistor

 

 

 

B C E B C E

 

 

 

Transistor

B C E

 

with resistor

 

D G S D G S

 

 

 

Field effect

D G S

 

transistor

 

 

Resistor array

 

 

3-terminal

 

 

regulator

A MOTHER ASSY FM/AM TUNER UNIT

E

C

 

3.The parts mounted on this PCB include all necessary parts for several destinations.

BFor further information for respective destinations, be sure to check with the schematic diagram.

4.View point of PCB diagrams.

Connector

Capacitor

D

 

 

 

 

 

CN501

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SIDE A

 

 

 

 

 

 

 

 

 

D

 

 

 

 

 

P.C.Board

Chip Part

CN502

 

 

 

 

 

 

 

 

 

 

 

 

 

SIDE B

 

 

 

 

 

 

C

 

 

F J25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F J24

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

SIDE A

 

 

 

 

 

 

A

 

 

IC151

IC101 IC102

Q192

Q103 Q191

Q605

24

 

 

Q101

Q406 Q405 Q454

Q453

Q457

 

 

Q456 Q455

Q452 Q458

 

IC402

 

 

1

 

2

3

 

4

 

 

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Contents 31-3042/31-3043 AUDIO/VIDEO ReceiverKuxji Center and Rear Speaker Parts List Front Speaker Parts ListPassive Subwoofer Parts List Page VSX-D307 Safety Information Safety PrecautionsProduct Safety Notice Leakage Current CheckExploded Views and Parts List Packing Parts ListAccessories PackingExterior Section Exterior Section Parts List BBZ30P080FZKFront Panel Section Parts List Front Panel SectionVSX-D307 Schematic Diagram Overall Connection DiagramTrans 2 Assy AWX7071 Trans 1 Assy AWX7070 VSX-D307 Mother Assy 1/3 To FM/AM Tuner Unit 12 a 2/3 3 S Mother 3/3, Connection and Trans 2 Assemblies Connection Assy AWX7060KUXJ,KUXJI AWX7176KCXJIPower Trans 2 AssyFront Assy Speaker Volume DSP Assy 1/2 CN106 CN107 Volume DSP Assy 2/2 PRE-AMP Front Speaker Assy Transformer CordMother Assy PCB Connection DiagramSide a CN203 CN92 CN91 CONNECTION, Trans 2 and Front Assemblies Trans 2 Assy Volume DSP Assy Volume DSP AssyFront SPEAKER, HEADPHONE, Primary and Trans 1 Assemblies PCB Parts List Parts List for AWX7058 SemiconductorsList of Whole PCB Assemblies Mother AssyCoils RelayCapacitors Trans 2 Assy Connection AssyComplex Assy Switches Volume DSP AssyFront Assy Front Speaker Assy Adjustment Headphone AssyPrimary Assy Trans 1 AssyCXD2724Q Volume DSP Assy IC201 General InformationParts 1 ICXtli AAV7053 Front Assy DisplayFL Tube Bonnet and Front Assy DisassemblyBonnet Front Assy Mother and Connection Assemblies Mother and Connection AssembliesPower Pack Mother Assy IC401 and IC402 At Bottom Side DiagnosisDiagram Volume DSP Assy Test Points for DiagnosisMother Assy Front Speaker AssyPanel Facilities Panel Facilities and SpecificationsFront Panel DSP indicator DisplayConnecting Devices Assembling the AM loop antenna When attached on a wall, etcAC Outlet Switched 100 W 0.8 a MAX Antenna terminal Input/output plug Speakers terminalRemote Control Unit Tuner operationsSpecifications Phono MMPage Video Section DVD/LD input, at monitor terminal RadioShack Division of Tandy Corporation Fort Worth, Texas

31-3043, STAV-3770 specifications

Dolby Laboratories is renowned for its cutting-edge audio and visual technologies, and the STAV-3770,31-3043 model is a standout example of this legacy. This audio/video receiver is engineered to deliver an immersive home entertainment experience, integrating advanced features that cater to audiophiles and casual viewers alike.

One of the primary highlights of the STAV-3770 is its support for Dolby Atmos, a revolutionary audio technology that brings a three-dimensional sound experience to any environment. This feature allows sound to move fluidly around the listener, creating an enveloping effect that enhances movies, music, and games. Coupled with Dolby TrueHD, the STAV-3770 ensures lossless audio reproduction, providing crystal-clear sound quality that captures every detail.

Equipped with multiple HDMI inputs, the STAV-3770 facilitates seamless connectivity for various devices, including gaming consoles, Blu-ray players, and streaming devices. The inclusion of HDMI 2.1 support allows for features such as 4K at 120Hz passthrough, ensuring that users can enjoy high-resolution content without compromising performance. This level of connectivity is crucial for modern home theaters, where consumers often have multiple devices in use.

In terms of user experience, the STAV-3770 also incorporates a user-friendly interface and intuitive remote control, simplifying operation for users of all technical backgrounds. The on-screen setup guide assists in optimizing speaker placement, ensuring that sound is balanced and immersive.

Another key characteristic is the unit's powerful amplification capabilities. With a significant wattage output, the STAV-3770 delivers robust sound that can fill large rooms without distortion. This is particularly beneficial for larger home theater setups, where consistent audio performance is critical for an enjoyable viewing experience.

The STAV-3770 further extends its versatility with smart home integration, enabling compatibility with various voice assistants. This feature allows users to control their home entertainment systems effortlessly through voice commands, exemplifying modern convenience in technology.

Lastly, energy efficiency is an important aspect of the STAV-3770 design. Dolby Laboratories has implemented technologies that reduce power consumption without sacrificing performance, aligning with eco-friendly practices that many consumers prioritize today.

In summary, the Dolby Laboratories STAV-3770,31-3043 epitomizes the ideal blend of advanced audio technologies, user-friendly features, and efficient performance, making it a premier choice for anyone seeking to enhance their home entertainment experience.
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