Kenwood KDC-MP925 Service Manual

Also see for KDC-MP925: Instruction manual Instruction manual

Contents

KDC-MP925/W80276Pin No. Pin Name I/O Description / Processing Operation Fig18 TEST - NC (GND)19 DIAG I Over voltage/Over current detection terminal (Normal : H, Bad condition : L)20 MUTE O MUTE output terminal (ON : OPEN, OFF : L)21 PRE MUTER O PREOUT (Rch) muting control terminal22 PRE MUTEL O PREOUT (Lch) muting control terminal23 BU DET I Momentary power dropped detection terminal (No Backup, Momentary power dropped : H, Backup : L)24 ACC DET I ACC detection terminal (With ACC : L, Without ACC : H)25 FOCUS I/O WOW/FOCUS control terminal (FOCUS HI : H, FOCUS LOW : L)26 EXT AMP CONT O External amplifier control terminal27 DIMMER I Small lamp detection terminal (ON : L, OFF : H)28 ANT CONT(TYPE2) I/O Antenna control/Destination select terminal (TUNER ON : H)29 P ON I/O SW14V, SW5V control terminal (POWER ON : H, POWER OFF : Hi-Z)30 ILL ON I/O FL, illumination control terminal (ON : H, OFF : Hi-Z)31 RESET I Reset input terminal32,33 XT1/XT2 - Sub clock (32.768KHz)34 REGC - Connect to 1μF capacitor35,36 X2/X1 - Main clock (20MHz)37 VSS - GND38 VDD - AVR 5V39 CLKOUT - NC40 LX REQ M O Communication request to external slave unit (Request : L)41 LX MUTE I Mute request from external slave unit (MUTE : H).42 LX CON O External slave unit (ON : H, OFF : L)43 LX RST O Reset output to external slave unit (Normal : L, After system reset : H 400ms or more and then L)44 CD MECHA+B O CD4.7V output terminal (CD : H, Except CD source : L)45,46 TYPE0/TYPE1 I Destination select terminal47,48 IC2 TYPE0/TYPE1 I IC2 destination select terminal49 PAN5V O Panel 5V control terminal (ON : H, Momentary power dropped : Hi-Z)50 E2P5V I/O E2PROM, D/A converter power supply control terminal (ON : L, OFF : Hi-Z)51 DSI I/O DSI control (ON : L, OFF : Hi-Z)52 MC REQ O Communication request to panel microprocessor53 PAN RST O Reset output to panel microprocessor (Normal : H, Reset, Momentary power dropped : L)54 WOW MODE3 O WOW control terminal 155 DVDD - AVR 5V56 DVSS - GND57 SC CON O Panel microprocessor control terminal (POWER OFF, ACC OFF : L)58 M RST O Reset output to CD mechanism (Normal : H, Reset : L)59 M STOP O Stop request to CD mechanism (STOP : L, CD : H)60 CD SW3 I CD DOWN SW detection terminal (CD disc chucking : H)61 LO/EJ I/O CD mechanism loading/ eject selector (STOP, Brake : Hi-Z, LOADING : L, EJECT : H)MICROCOMPUTER’S TERMINAL DESCRIPTION