Denon AVR-3805 Service Manual

Also see for AVC-3890: Control protocol Service manual

Contents

3131AVR-3805 / AVC-3890EXP1 A(RECA) Video input switching (RECOUT SELECT)EXP2 B(RECB) Video input switching (RECOUT SELECT)EXP3 C(RECC) Video input switching (RECOUT SELECT)IC503 EXP4 D(INA) Video output switching (INPUT SELECT)EXP5 E(INB) Video output switching (INPUT SELECT)EXP6 F(INC) Video output switching (INPUT SELECT)EXP7 S1 Video output switchingEXP8 S2 Video output switchingEXP9 VIN1 Component video output switchingEXP10 VIN2 Component video output switchingEXP11 VIN3 Component video output switchingIC120 EXP12 VINUP Switching control pin of component monitor outputEXP13 Y/C SELA Video output switchingEXP14 SMUTE Video output switchingEXP15 VMONISELA Video output switchingEXP16 VMONISELB Video output switchingFunctionPort SymbolSTROBE 12345678 910111615141312DATACLOCKQ1Q2Q3Q4VSSVDDOEQ5Q6Q7Q8Q’SQSBU4094BCF Terminal FunctionBU4094BCF (VI: IC120) (CO: IC503)Note: Pin No. : Terminal number of microcomputer.Port Name : The name entered in the data sheet of microcomputer.Symbol : Symbolized interface function.I/O : Input or out of part.“I” = Input port“O” = Output portType : Composition of port in case of output port.“C” = CMOS output“N” = NMOS open drain output“P” = PMOS open drain outputOp : Pull up/Pull down selection information.“Iu” = Inner microcomputer pull up“Id” = Inner microcomputer pull down“Eu” = External microcomputer pull up“Ed” = External microcomputer pull downDet : Indicates judging state of input port. Level detection is “LV”; Edge detection is “Ed”; Detection by both shifting is “E&L”;Serial data detection is “S” (Serial data output is also “S”).Res : State at reset.“H” = Outputs High Level at reset“L” = Outputs Low Level at reset“Z” = Becomes High impedance mode at resetSTBY : State of port when STANDBY mode.“O/L” = Output port and “L”“I” = Input portStop : State of port when Stop mode.“O/L” = Output port and “L”“I” = Input portwww. xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com