Kenwood KDC-MP425 Service Manual

Also see for KDC-MP425: Instruction manual Service manual Instruction manual

Contents

6KDC-MP425/MP6026KDC-W6027/W6027YPin No. Pin Name I/O Application Truth Processing Operation Descriptionvalue table12R DATA I RDS decoder DATA input terminalNot used O Destination other than E and E213 L CE O CE output terminal for LCD driver14 Not used O Non variable illumination switch destination15 Not used O Non variable illumination switch destination16 DSI I/OEJECT KEY ILL, GUIDE ILL, FLIP-DET “H” and PANEL-DET is “L” : “H” / “L”DSI control terminal FLIP-DET “H” and PANEL-DET is “H” : “L”17 DIM CON O Dimmer control terminal 50ms interval : “H” / “L”18 TEST -19 ILL CON O During FLIP DET ILL+B OFF During FLIP DET “L” : H20 VOL A I Volume key input When looking at VOL, also look at FLIPDET21 VOL B I Volume key input When looking at VOL, also look at FLIPDET22 MOSW O CD mechanism MOTOR IC SW Loading, Eject, Brake : H23 LO/EJ I/O CD mechanism LOADING, EJECT switching STOP, Brake : Hi-Z, Loading : L, Eject : H24 M STOP O STOP request to CD mechanism25 M RST O Reset output terminal to CD mechanism Normal : H, Reset : L26 MUTE I/O MUTE terminal Hi-Z : Mute ON, L : Mute OFF27 LOE/LIM SW I CD DOWN SW DET terminal H : Chucking28 M-MUTE L I MUTE request terminal from CD mechanism L : Mute request29 M-MUTE R I MUTE request terminal from CD mechanism L : Mute request30 PANEL 5V I/O Panel 5V control terminal Panel DET : L, Detached, Momentary power down : H31 RESET I Normal : H, Reset : L32 XT1 I 32kHz33 XT2 I 32kHz34 REGC - Connect 1μF condenser to GND35 X2 I 20MHz36 X1 I 20MHz37 VSS -38 VDD -39 CLKOUT -40 IC2 TYPE1 I E-VOL setting switching terminal41 IC2 TYPE0 I E-VOL setting switching terminal42~44 TYPE2~TYPE0 I Destination switching terminal e45 CD MECHA+B I/O Power supply control terminal for MP3 ON : L, OFF : Hi-Z46 SW5V I/O Control terminal for SW5V ON : L, OFF : Hi-Z47,48 PS2-0, PS2-1 O Control terminal for power supply IC w49~51 PS1-0~PS1-2 O Control terminal for power supply IC q52 B.U-DET I Momentary power down DET terminal BU DET : L, BU no DET (momentary power down) : H53 ACC-DET I ACC DET terminal ACC DET : L, ACC no DET : HMICROCOMPUTER’S TERMINAL DESCRIPTIONwww . xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299