Kenwood KDC-116S Service Manual

Also see for KDC-1018: Instruction manual

Contents

KDC-116S/10183lELECTRIC UNIT(X25-8700-XX)Ref.No. Component Name Application/Function Operation/Condition/CompatibilityIC1 UPD780058GC233 System μ-COM.IC2 TDA7407D E-VOL. & N.C. MPXIC4 TDA7386 Power ICIC7 BA4911-V4 Power supply ICIC8 HD74HC27FP Mute gate IC 3 input NOR gate x3IC11 S-80830ANNP RESET IC Detection voltage 3.0VIC12 BR24C01AF or BR24C01AF-W E2PROMM24C01-WMN6T or S-24C01BQ10 2SC4081 or 2SD1819A B.U. detection Detect BU voltageQ20 2SC4081 or 2SD1819A ACC detection Detect ACC voltageQ40 DTA124EUA or UN5112 PREOUT mute driver Mutes when base is "Lo" (controls Q221-224)Q50 2SA1036K SW 5V ON when the base is "Lo".Q51 UMC2N SW 14V ON when the base is "Hi" (controls Q55)Q53 UMC2N Switch for power supply IC ON when the base is "Hi" (controls SW1 pin of powersupply IC)Q55 2SD2375 or 2SD2396 AVR for SERBO +B Output issued when SW14V is on (base is "Hi")Q70 2SC4081 or 2SD1819A SURGE detection Detect SURGE voltageQ223,224 DTC143TUA or UN5216 PREOUT MUTE Mute applied to PREOUT (output) when base is "Lo"Q251 DTC114YUA or UN5214 Power IC SVR SW Turns ON when base is "Hi" and capacitor on SVRpin dischargesCOMPONENT DESCRIPTIONlSWITCH UNIT(X13-9880-14)Ref.No. Component Name Application/Function Operation/Condition/CompatibilityIC1 LC75853NE LCD driver Ready on key-matrixQ1 DTA114EK or KRA102S or key-matrix permission SW Ready on key-matrix, ON when the base goes "Lo"UN2111www . xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299