Yamaha MSP5A Service Manual

Also see for MSP5A: Owner's manual Owner's manual Owner's manual Owner's manual

Contents

MSP5A142. Muting operationThe pop noise which appears between the time of the relay when making a power switch into ON/OFF of operation and SPterminal checks that it is the range of the following table for LF and HF.3. Protection circuit operationWhen DC+3V are impressed to the base of Q201 through 2.2k ohm, it checks that a relay is turned off immediately.When DC-3V are impressed to the base of Q202 through 2.2k ohm, it checks that a relay is turned off immediately.Noise output voltageLF, HF SP-OUTINPUT Relay operation timePOWER SWITCHNon-signal OFF → ON 3.0 – 1.5 sec+1.5-1.00.1Vp-pON → OFF 1.0 sec 0.1Vp-p567LEVEL VR = MIN.HIGH SW: 0LOW SW: 0LF SP-OUTDIN AUDIO FilterHF SP-OUTDIN AUDIO Filter<-70dBu<-70dBuNoise levelResidual NoiseLEVEL VR = MAX.HIGH SW: 0LOW SW: 0LF SP-OUTDIN AUDIO Filter <-70dBuMAX. NOISENo Signal HF SP-OUTLF SP-OUT <–50mVDC VOLTAGE(Note): 0dBu = 0.775Vwww . xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com