雅马哈Yamaha-G30-112-Series-I-(A)-Service-Manual维修服务手册说明书含电器原理图

G30-112(S/#4801~)圈SPECIFICATIONSOutput Power30 Watts RMS 3%THD 8 ohms40 Watts RMS 10%THD 8 ohmsSpeaker30cm(12)×1JA3059Input SensitivityHIGH:-34 dBm 1KHz (Volume Tone Controls at max.)LOW :-28 dBmInput ImpedanceHIGH:1M ohmsLOW 130K ohmsHead Phone Terminal-7 dBm 1KHz/8 to 150 ohms head phoneControlsVolumeBass,Treble,BrightDistortionReverbFoot Switch JackDistortionReverbSemi-Conductor in useTransistors 14FET2DiodesRated VoltageAC 100VRated Frequency50/60HzRated Power Consumption30 WattsDimensions450(H)×500(W)×200(D)m/mWeight12.6kgFinishBlack leatheretteSpecifications subject to change without notice.Name of the PartsPilot Lamp-Distortion ControlPower SwitchReverb ControlBright Control④©YAMAHATreble ControlBass ControlNormal Input JackHigh Sensitivity Input Jack(Control panelFuse Holder (1.5A 250V)Head Phone Connection TerminalReverb Foot Switch Connection TerminalDistortion Foot Switch Connection Terminal(Back panel）