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Table of Contents
Table of ContentsService ManualTo Service PersonnelImpedance SelectorFront PanelsRear PanelsRemote Control PanelsSpecificationsSet Menu TableInternal ViewRemoval of DSP P.C.B.Removal of Top CoverRemoval of Front Panel UnitDisassembly ProceduresRemoval of FUNCTION (1) - (7) P.C.b.s and TunerWhen Checking the P.C.B.Removal of MAIN and POWER P.C.b.sSelf Diagnosis FunctionStarting DIAG in the Protection Cancel ModeCanceling DIAGWhen There Is a History of Protection FunctionDisplay Provided When DIAG StartedWhen There Is no History of Protection FunctionDisplay During Menu OperationHistory of Protection FunctionOperation Procedure of DIAG Menu and SUB-MENUFunctions in DIAG ModeInitial Settings Used to Start DIAGDetails of DIAG MenuDSP throughRAM throughPRO LogicSpeakers SetMargin CheckOther InputDisplay CheckManual TestFactory PresetAd Data Check/Fan TestIF StatusDSP Ram CheckSD DL CodeSoft SWMicroprocessor InformationConfirmation of Idling Current of Main P. C. B.AMP AdjustmentPin ConnectionGrid AssignmentDisplay DataAnode ConnectionIC DataBlock DiagramBlock DiagramDsp PcbPrinted Circuit BoardFunction PCBOperation PCBVideo PCBMain PCBPower PCBPin Connection DiagramSchematic Diagram (DSP)Electrical PartsParts ListPcb DspPCB DSP and PCB FunctionPCB FunctionPCB Function and PCB OperationPCB OperationPCB Operation and PCB VideoPCB Video and PCB MainPCB MainPCB Main and PCB PowerPCB PowerChip ResistorsParts List for Carbon ResistorsExploded ViewMechanical PartsSchematic DiagramRemote Control
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Service Manual
1
Table of Contents
5
Rear Panels
14
Specifications
See also:
Owner's Manual
RX-V540/RX-V540RDS/HTR-5650/HTR-5650RDS/DSP-AX540
RX-V440/RX-V440RDS/HTR-5640/HTR-5640RDS/DSP-AX440
This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already
known and understood by the users, and have therefore not been restated.
WARNING:
IMPORTANT:
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:
IMPORTANT:
I CONTENTS
To Service Personnel .......................................... 2
Impedance Selector ............................................. 2
Front Panels ........................................................ 3~5
Rear Panels ........................................................ 5~12
Remote Control Panels .................................... 13
Specifications /
Internal View ......................................................... 17
Disassembly Procedures
Self Diagnosis Function (DIAG)
1 0 0 8 4 6
AV RECEIVER/AV AMPLIFIER
IMPORTANT NOTICE
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 any service required should be performed by an authorized
YAMAHA Retailer or the appointed service representative.
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.
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).
Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.
14~17
......... 18~20
21~42
SERVICE MANUAL
Amp Adjustment
Display Data ..................................................... 44~45
Ic Data ................................................................. 46~51
Block Diagram ................................................. 52~53
Printed Circuit Board .................................. 54~75
Pin Connection Diagram .................................... 76
Schematic Diagram ........................................ 77~88
Parts List ......................................................... 89~137
Remote Control .......................................... 138~139
43
P.O.Box 1, Hamamatsu, Japan
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