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Yamaha DSP-E800 Service Manual

Yamaha DSP-E800
58 pages
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DSP-E800
DSP-E800
DSP-E800
100719
AV PROCESSOR/AMPLIFIER
SERVICE MANUAL
CONTENTS
TO SERVICE PERSONNEL .......................................... 1
REAR PANELS .............................................................. 1
SPECIFICATIONS .......................................................... 2
INTERNAL VIEW ........................................................... 3
DISASSEMBLY PROCEDURES ............................. 3—4
ADJUSTMENTS ............................................................. 5
SELF DIAGNOSIS FUNCTION.............................. 6—17
FACTORY PRESET ..................................................... 18
IC DATA ............................................................... 19—27
DISPLAY DATA ........................................................... 28
PIN CONNECTION DIAGRAM .................................... 29
BLOCK DIAGRAM ............................................... 30—31
PRINTED CIRCUIT BOARD ................................ 32—41
SCHEMATIC DIAGRAM ...................................... 42—47
PARTS LIST ......................................................... 48—59
REMOTE CONTROL TRANSMITTER......................... 60
This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherant to the industry, and more specifically YAMAHA Products, are already known and
understood by the users, and have therefore not been restated.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury,
destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise all
YAMAHA product owners that all service required should be performed by an authorized YAMAHA Retailer or the
appointed service representative.
IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service
departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and specifications
are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor's Service
Division.
WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by
grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).
IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.
IMPORTANT NOTICE

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Questions and Answers:

Yamaha DSP-E800 Specifications

General IconGeneral
Channels5.1
Input Impedance47 kOhms
Input Sensitivity200 mV
Signal to Noise Ratio100 dB
Channel Separation70 dB
Digital InputsOptical, Coaxial
Video ConnectionsComposite, S-Video
Frequency Response20Hz - 20kHz

Summary

TO SERVICE PERSONNEL

Critical Components Information

Information on critical components and replacement guidelines.

SPECIFICATIONS

AUDIO SECTION

Detailed technical specifications for the audio processing and output.

GENERAL

General specifications including power, dimensions, weight, and finish.

DISASSEMBLY PROCEDURES

Checking the Amplifier Unit and Replacing Components

Steps for checking and replacing components in the amplifier unit.

ADJUSTMENTS

Confirmation of Idling Current

Procedure for checking and adjusting the idling current of the unit.

SELF DIAGNOSIS FUNCTION

PURPOSE AND OPERATION

Explanation of the self-diagnosis function's purpose and how it operates.

BEGINNING AND CANCELLATION

Procedures for starting and exiting the self-diagnosis mode.

OPERATION AND DISPLAY WHEN STARTING DIAGNOSIS FUNCTION

Details on operating the diagnosis function and its display.

How to start the diagnostic program

Step-by-step guide to initiate the diagnostic program using front panel keys.

Protection history function

Explanation of how protection history is displayed during diagnosis.

Selection of diagnostic menu

Methods for selecting diagnostic menus using front panel or remote control.

Exiting method

Methods available to exit the self-diagnosis function.

CONTENTS OF DIAGNOSIS FUNCTION

No.1 ANALOG THROUGH

Details of analog input through modes: MAIN BYPASS and DSP 0dB.

No.2 DSP THROUGH

YSS+SRAM M

DSP through mode with specific signal routing and levels.

YSS M

DSP through mode, similar to DSP 0dB but with input switching.

DSP FULL BIT

DSP through mode with head margin disabled and full digital data output.

No.3 AC-3/DTS THROUGH

No.4 PRO LOGIC

PRO LOGIC mode with automatic signal discrimination and DTS disabled.

No.5 SPEAKERS SET

No.6 DISPLAY CHECK

No.7 MANUAL TEST

No.8 FACTORY PRESET

No.9 AD DATA CHECK

No.10 STATUS INFORMATION FROM DSP

FACTORY PRESET

IC DATA

IC701: M30218FCFP

Pin assignment and function details for the M30218FCFP microcomputer.

IC3: YSD917 (DIR5)

Pin assignment and function for the YSD917 Digital Format Interface Receiver.

IC4: YSS918D-F (AC3D2av)

Pin assignment and function for the YSS918D-F DSP + AC-3 decoder IC.

SCHEMATIC DIAGRAM

Analog Signal Path

Schematic showing analog signal routing through switches and buffers.

Video Signal Path

Schematic illustrating the video signal selection and processing paths.

Input (1) P.C.B. Schematic

Schematic diagram for the Input (1) printed circuit board.

System Control and Volume Amp

Schematic section covering system control and volume amplification circuits.

Power Amplifiers

Schematic diagrams for the rear, center, and LFE power amplifier stages.

Power Supply Details

Detailed schematic of the power supply and regulator circuits.

Digital Input Selector

Schematic of the digital input selection circuitry.

Power Supply

Schematic of the unit's power supply circuitry.

PARTS LIST

ELECTRICAL PARTS

List of electrical components with part numbers and descriptions.

REMOTE CONTROL TRANSMITTER

SCHEMATIC DIAGRAM

Schematic diagram of the remote control transmitter's circuitry.

Function/Data Mapping

Table mapping remote control functions to custom data codes.

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