KENWOOD KDCX717
Service Manual

KDC-X717
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 4 Function IC2TYPE1 CH-REQH CH-RST CH-MUTE CH-CON ILL-ON M-MUTE L M-MUTE R BVdd BVss M-RST M-STOP N.C LO/EJ MOSW N.C CD-SW3 PAN-RESET MC-REQ/PAN N.C N.C N.C N.C AVCONT Avdd Avss Avref PHONE SRM-SW3 SRM-SW1 SRM-SW2 SRM-DET NOISE S-METER R-DATA R-QUAL IFC-OUT N.C N.C SRM-B R-CLK CH-REQC SC-REQ CD-SW1 CD-SW2 SRM+B BU-DET CH-DATAC CH-DATAH CH-CLK SC-DATA MC-DATA MC-CLK PAN5V I/O I O O I O O I I O O O I/O O O I O I/O O O O O O I I I I I I I I I I I I I O I I I I I O I I O I/O I I/O O O Description IC2 destination terminal Request output to changer Reset output to changer Mute request from changer Changer control output FL, illumination output Mute request from CD mechanism Mute request from CD mechanism +B terminal GND terminal Reset output to CD mechanism Stop request to CD mechanism Open (not used) CD mechanism, LODING, EJECT selector CD mechanism, MOTOR, SW Open (not used) CD down SW detection terminal Reset output to panel microprocessor REQ terminal/panel detection for panel microprocessor Open (not used) Open (not used) Open (not used) Open (not used) AD reference voltage control output +B terminal GND terminal Reference voltage supply terminal for A/D converter PHONE detection terminal Mask mechanism position detection input Mask mechanism position detection input Mask mechanism position detection input Mask mechanism detection input FM noise detection terminal S meter detection terminal RDS DECODER DATA input terminal RDS DECODER QUAL input terminal F/E IFC OUT input terminal Open (not used) Open (not used) SRM mechanical submotor output terminal RDS DECODER CLK input terminal Input request from changer Communication request from panel microprocessor LOADING SW detection terminal 12cm disk detection switch terminal SRM mechanical submotor output terminal Momentary power down detection terminal Data input terminal from changer Data input terminal to changer CLK I/O terminal used with changer Data line from panel microprocessor Data line to panel microprocessor CLK terminal to panel microprocessor Panel 5 volt control terminal Processing Operation L: During default Normally L, after system RST reset is �H� for 400ms and then �L� ON: H OFF: L ON: H OFF: L ON: H OFF: L ON: L ON: L

Normally H, L:During reset Per mechanical control specs. Stop: L H: During CD Stop, Brake: Hi-z, LOADING: L, EJECT: H LOADING, EJECT, Brake: H Chucking: H Normally H, L: During reset, momentary power down L: During panel use

Same timing as P ON

H: During operation

Tel mute: Min 1 volt, Navi mute: Max.2.5 volt See 01mask mechanical position detection chart See 01mask mechanical position detection chart See 01mask mechanical position detection chart L: Mechanism H: No mechanism

Connect to GND: On models without RDS, RBDS Connect to GND: On models without RDS, RBDS L: When station present Connect to GND Connect to GND Connect to GHD: On models without RDS, RBDS ON: L LOADING start: L 12cm DISC: L L: B.U H: No B.U (momentary power down)

L: Panel

H: No panel