Yamaha AV-S70 Service Manual

Also see for AV-S70: Owner's manual Service manual

Contents

AV-S70/NX-SW70AV-S70/NX-SW7022 AV-S70 BLOCK DIAGRAM (2/2)SW–PRT90VPRT92SW–RY35RESET12+10V+10V+V+10V+5.6V+5DDGNDVFL1VFL2+25V–25V+15V–15V–25VEL–VPOWER–GNDPD221321129394381719232715 33 30 2932 34POWER DOWN DETECTQ706/D705/D706VOLTAGE MONITORR331/R332/R301/R302/R303/R304/R320/R321/R712/R312RESET CIRCUITQ705/D704Q114P–ON94Q110/D302Q113D308+25VSW–PRT SW–POWERRY301RY301CB704FOR FLASH WRITERE 2 PROMIC702CLKFCKFTXSTBVSSVCC+5V –25VELKEYINPUTAVSSAVCC–VPCEFCEE2CEFRXSTB28 31CE10ISELAISELBMUSICCPATPREOUTISEL–A11ISEL–BTRUBASS91M–SENSOR37PRE–OUT206498963889100631697146558 59 1 2AMP– PRTDATAXL701CONTROL6CH SELECTOR/6CH VOLUMECONTROLINPUT SELECTORSIGNAL DETECTFOR AUTO POWERPRE OUTPRESENT/ABSENTDC SIGNAL DETECTIC701M30218FCFP8866544240662525139V701 FL DISPLAYQ703Q704Q701Q708VFL1 VFL2 +5DQ710BASS BOOSTQ702MUTEQ707NIGHTSP-RYDSP CONTROL SIGNALREMB–BSTMUTENIGHTSPRYU701REMOTESENSORD303/D304IC120IC123IC1211 31 31 2+10V(FOR SW–AVS70)Q113Q117IC122F401D301 SW401D305D307GNDGNDGNDQ115Q1181 3T401STANDBY LEDPage 38 Page 36 Page 39www . xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com