Dolby Laboratories STAV-3770 Safety Information, Safety Precautions, Product Safety Notice

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VSX-D307

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians ; it is not meant for the casual do-it- yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.

WARNING

Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which may cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5).

When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin contact with the solder. Also, when soldering do not inhale any smoke or fumes produced.

NOTICE

(FOR CANADIAN MODEL ONLY)

Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be of identical designation.

REMARQUE

(POUR MODÈLE CANADIEN SEULEMENT)

Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces de remplacement doivent avoir la même désignation.

(FOR USA MODEL ONLY)

1. SAFETY PRECAUTIONS

The following check should be performed for the continued protection of the customer and service technician.

LEAKAGE CURRENT CHECK

Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5mA.

 

 

 

 

 

 

 

 

 

Reading should

 

 

Leakage

not be above

Device

current

0.5mA

under

tester

 

 

 

 

 

test

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Test all

 

 

 

 

 

 

 

 

 

 

 

 

 

exposed metal

 

 

 

 

 

 

 

 

 

 

 

 

 

surfaces

 

 

 

 

 

 

 

 

 

 

 

 

 

Also test with

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

plug reversed

 

 

 

 

 

 

 

 

 

 

 

Earth

 

 

 

 

 

 

 

 

 

 

 

 

(Using AC adapter

 

 

 

 

 

 

 

 

 

 

 

ground

 

plug as required)

 

 

 

 

 

 

 

 

 

 

 

 

AC Leakage Test

ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this Service Manual.

Electrical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual.

The use of a substitute replacement component which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards.

Product Safety is continuously under review and new instructions are issued from time to time. For the latest information, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from

PIONEER.

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Contents 31-3042/31-3043 AUDIO/VIDEO ReceiverKuxji Front Speaker Parts List Center and Rear Speaker Parts ListPassive Subwoofer Parts List Page VSX-D307 Product Safety Notice Safety InformationSafety Precautions Leakage Current CheckAccessories Exploded Views and Parts ListPacking Parts List 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 CordPCB Connection Diagram Mother AssySide 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 List of Whole PCB Assemblies PCB Parts ListParts List for AWX7058 Semiconductors Mother AssyRelay CoilsCapacitors Connection Assy Trans 2 AssyComplex Assy Volume DSP Assy SwitchesFront Assy Front Speaker Assy Primary Assy AdjustmentHeadphone Assy Trans 1 AssyParts CXD2724Q Volume DSP Assy IC201General Information 1 ICXtli Display AAV7053 Front AssyFL Tube Disassembly Bonnet and Front AssyBonnet Front Assy Mother and Connection Assemblies Mother and Connection AssembliesPower Pack Mother Assy IC401 and IC402 At Bottom Side DiagnosisDiagram Mother Assy Volume DSP AssyTest Points for Diagnosis Front Speaker AssyPanel Facilities and Specifications Panel FacilitiesFront 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.