Yamaha dsp e492

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AV PROCESSOR/AMPLIFIER

DS P-E492

SERVICE MANUAL

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f IMPORTANT NOTICE

This manual has been provided for (he use of authorized YAMAHA Relailerfi and their service personnel.
ll hm been assumed lhal basic service procedures inherent lo ll'le induxlry. and more specifically YAMAHA Produclv.
are already known and understood by me users. and have therefore not been mulled.

WARNING: Failure [0 follow appropriale «nice and safely procedures when servicing lliis producl may resull
in personal injury. destruction of expensive Componenls and failure oflhe producx lo perform as
specified, For lhese reasons; we advise all YAMAHA product ownzrs Ihal all service requlrcd
should be performed by an aulhorized YAMAHA Relailer or |h= appointed service represenrarivc,

IMPORTANT: The presenlalion or sale ofrhn manual Io any individual or firm does nol constilule authorizalion.
cenificallon or rccognilion of any applicable lechnicdl tapabilillex. or eslablish n principle-
agcnl relationship of any form.

The dala provided is believed lo be accuralc and applicable lo the unil(<) lndiczled on [he cover. The research.
engineering. and servica deparlmenls of YAMAHA are coniinually striving lo improve YAMAHA produm.
Modificnlions are. lherefore, Inevilable and specificalians are sub)ect lo change wiihoul nolice or Obligation I0 relrofil.
Should any dlxcrepancy appear lo exiil, plea»: conlacl lhe dislribulors Service Division.

WARNING: slalic dificharges can deilroy expenoive Components. Dischirge any Slullc eleclrichy your body
may have accumulated by grounding yourself lo lhc ground bu in me unil (heavy gauge black
wires connect in lhis him),

i mm l IMPORTANT: Tum lhe unil OFF during dis-assembly and pans replacement, Recheck all work before you apply

9 power [0 (he unir,

I CONTENTS

TO SERVICE PERSONNEL . IC DATA .............. ...... ................. . ......... 11~14
REAR PANELS ............. .. PIN CONNECTION DIAGRAM. ......................... .. ..... 15
SPECIFICATIONS ................... . ...... PRINTED CIRCUIT BOARD ................. ...... . ...... 16~25
INTERNAL VIEW .......... .............. . ......... BLOCK DIAGRAM ...... 26~27
DISASSEMBLY PROCEDURES . 5 SCHEMATIC DIAGRAM

SELF CHECK MODE . PARTS LIST ................ .
ADJUSTMENTS . REMOTE CONTROL TRANSMITTER ............... .. ........ 41

DISPLAY DATA .

I ggérMOlAPORH/xl ON

0x1, amamatsu, apan
(7504 lfil ! Printed in Japan 97.x