Kenwood DPX502 - DPX 502 Radio, Руководство по обслуживанию

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7
DPX502/502U/502UY
DPX-MP5100U
Pin No. Pin Name I/O Application
Truth
Value Table
Processing / Operation / Description
40 NC - Not used Output L fi xed
41 CD DISC12 SW I 12cm-disc detection
42 CD LOS SW I CD loading detection
43 CD MUTE I CD mute request L: Mute request, H: Normal
44 VFD CS O VFD control request H: VFD data can be transferred
45 SOC S RST O SOC reset H: Normal, L: Reset
46 SOC S STOP O SOC stop H: Normal, L: SOC stopped
47 CD DISC8 SW I 8cm-disc detection
48 CD LOE LIM SW I CD detection (Chucking SW) H: Loading completed, L: No disc
49 CD LOEJ I/O CD motor control
q
Refer to the truth value table
50 CD MOTOR O CD motor control
q
Refer to the truth value table
51 ROTARY CW I VOL key detection Detects pulse width
52 ROTARY CCW I VOL key detection Detects pulse width
53 PON PANEL I/O Panel 5V power supply control
ON (For 11 minutes after ACC OFF): L
Momentary power down, panel detached, 11 minute after
ACC OFF: Hi-Z
54 PON FL+B I/O FL display fi lament power supply control H: ON, Hi-Z: OFF
55 SW USB I/O V-BUS 5V control
H: ON, Hi-Z: OFF
Depends on command from SOC
56 NC - Not used Output L fi xed
57 PON ILL O Key illumination power supply H: Power ON, L: Power OFF
58,59 NC - Not used Output L fi xed
60 VCC2 -
61 PON O Power supply control H: Power ON, L: Power OFF
62 VSS - GND
63 TYPE 1 I Destination switching
w
Refer to the truth value table
64 TYPE 2 I Destination switching
w
Refer to the truth value table
65 NC - Not used Output L fi xed
66 PCON O External amplifi er control
67~69 NC - Not used Output L fi xed
70 ANT CON O Power antenna control Tuner ON: H
71 NC - Not used Output L fi xed
72 ACC DET I ACC power supply detection ACC found: L, No ACC: H
73 BU DET I Momentary power-down detection BU found: L, Momentary power down: H
74 ILLUMI DET I Dimmer illumination detection L: ON, H: OFF
75 S SYS REQ O
Communication request from system
µ-com to SOC
76 S SOC REQ I
Communication request from SOC to
system µ-com
77 PWIC MUTE O Power IC mute control
78 PWIC STBY O Power IC standby control
MICROCOMPUTER’S TERMINAL DESCRIPTION