Kenwood CKDC-MP576 Service Manual

Contents

6CKDC-MP576CKDC-MP676F/MP676VPin No. Pin Name I/O Application Truth Value Processing / Operation / DescriptionTable60 TUN FANC OUT O TUNER block (in μ-com) check Only when test mode, E2P OK: H, E2P NG: L, Normal: L61 PON FM I/O FM power supply control H: When FM is active, Hi-z: When FM is not active62 VCC2 -63 NC - Not used Fix to output L64 VSS -65 MUTE I/O MUTE L: MUTE OFF, Hi-z: MUTE ON66 PWIC SVR O SVR discharge circuit (Not used)When momentary power down by POWER OFF,5 seconds : H, Thereafter: L67 PWIC STBY O Power IC stand-by control POWER ON: H, POWER OFF: L68 PWIC MUTE O Power IC MUTEWhile STANDBY source,Momentary power down: L , While TEL MUTE: L69~74 NC - Not used Fix to output L75 RDS CLK I RDS decoder CLK input (RDS model only)76 TUN TYPE1 I Destination setting 1 e Refer to the truth value table77 TUN TYPE2 I Destination setting 2 e Refer to the truth value table78 TYPE1 I Destination change r Refer to the truth value table79 TYPE2 I Destination change r Refer to the truth value table80 TYPE3 I Destination change r Refer to the truth value table81 RDS NOISE I FM noise detection82 TUN SMETER I S meter inputTUN RDS MUTE output H: Normal83 RDS AFS L 2 O(Not used in circuit, used in software)L: FM/AM SEEK, AF search (L: When Tuner SRC Auto Zero)* Same process with RDS AFS L84~86 NC - Not used Fix to output L87 PWIC DC DET I DC offset detection88 LINE MUTE I Line mute detectionTEL MUTE: 1V or lower, NAVI MUTE: 2.5V or higherNAVI MUTE: 1V or lower and 2.5V or higher (J-TYPE)89,90 NC - Not used Fix to output L91 RDS DATA I RDS decoder DATA input92 RDS QUAL I RDS decoder QUAL input93 NC - Not used Fix to output L94 ACC DET I ACC power supply detection L: ACC ON, H: ACC OFF95 BU DET I Momentary power down detection L: BU found, H: BU not found, momentary power downActivated within 4ms after detection of momentary power down96 AVSS - Connect to VSS97 REF CON O VREF control Connect to VREF98 VREF - Connect to REF CON99 AVCC - Connect to VCC100 NC - Not used Fix to output LMICROCOMPUTER’S TERMINAL DESCRIPTION