Kenwood KDC-MP4028, Руководство по обслуживанию

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KDC-MP4028/MP428/MP6029
6
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Application Processing Operation
41 NC -
42 ROMCOR DET I To VSS via a resister
43 NC -
44 VFD CE O VFD control request
45 ROTARY CW I VOL key Detects puls width
46 ROTARY CCW I VOL key Detects puls width
47 CD DISC12 SW I 12cm disc detection
48 CD LOS SW I CD loading detection
49 CD MUTE R I Rch CD source mute request L : Rch mute request, H : Other condition
50 CD MUTE L I Lch CD source mute request L : Lch mute request, H : Other condition
51 CD MRST O CD mecha
µ
-com reset L : Reset, H : Other condition
52 CD MSTOP O CD mecha
µ
-com stop H : Mecha
µ
-com functions, L : Mecha
µ
-com stops
53 CD DISC8 SW I 8cm disc detection
54 CD LOE LIM SW I CD detection (Chucking switch) H : Loadind ends, L : No disc
55 CD LOEJ I/O CD motor control Refer to “CD MECHA CONTROL OPERATION” on the TRUTH TABLE
56 CD MOTOR O CD motor control Refer to “CD MECHA CONTROL OPERATION” on the TRUTH TABLE
57 PON ILLUMI I/O Key illumination power supply ON : H, OFF : Hi-Z
58 PON PANEL CD O Panel 5V and CD/WMA power supply control
POWER ON : L, POWER OFF : H
Becomes “L” earlier than mecha stops when reset functions.
59 PON O Power supply control POWER ON : H, POWER OFF : L
60 VCC2 -
61 NC -
62 VSS -
63~65 TYPE 1~3 I Destination switch
66,67 TUN TYPE1,2 I Destination setting
68 OEM DISP DATA I/O External display data External display
69 OEM DISP CLK I/O External display clock External display
70 OEM DISP CE I/O External display chip enable External display
71 EJECT I Eject key L : Eject
72 P CON O External amp control POWER ON : H, POWER OFF and STBY : L
73 KEY REQ I Communication request from VFD driver
74 ANT CON O Power antenna control TUNER ON : H
75 ILLUMI DET I Dimmer illumination detection L : ON, H : OFF
76 BU DET I Momentary power down detection BU exists : L, Momentary power down or no BU : H
77 ACC DET I ACC detection ACC exists : L, ACC does not exist : H
78 (PWIC SVR) O SVR discharge circuit
Becomes “H” in 5 seconds during POWER OFF momentary
power down, after that it becomes “L”.
79 PWIC MUTE O Power IC mute Standby source or momentary power down : H, Tel mute : L
80 PWIC STBY O Power IC standby control POWER ON : H, POWER OFF : L
81 LX CON O Start-up request to slave unit H : Slave unit ON, L : Slave unit OFF