Kenwood KDC-7024/Y, Руководство по обслуживанию

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KDC-7024/Y,722,8023
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MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Module Purpose / Description Truth table Processing Operation
23 BU_DET I Extra Momentary power dropped detection.
Backup : L,
No backup, momentary power dropped : H
24 ACC_DET I Extra ACC detection. With ACC : L, Without ACC : H
25 SW5V I/O Power supply 5V power supply. ON : L, OFF : Hi-Z
26
EXT_AMP_CONT O Extra External amplifier control. Refer to external amplifier control.
NC O NC (Without EXT_AMP_CONT model) Output : L
27 DIMMER I Extra Small lamp detection. ON : L, OFF : H
28 ANT_CON O Extra Antenna control.
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Tuner ON : H, Other source With RDS last FM
: H, Other source with RDBS TI ON last FM : H
29 P_ON I/O Power supply
SW 14V, SW 5V control, AD reference
Power ON : H, Power OFF : Hi-Z
voltage control output.
30 ILL_ON I/O Power supply FL, illumination output. ON : H, OFF : Hi-Z
31 RESET -
32 XT1 - Sub clock. 32.768kHz
33 XT2 - Sub clock. 32.768kHz
34 REGC - Connect to 1
µ
F capacitor.
35 X2 - Main clock. 20MHz
36 X1 - Main clock. 20MHz
37 VSS -
38 VDD -
39 CLKOUT -
40 LX_REQ_M O LX Communication request to external slave. Request : L
41 LX_MUTE I LX Mute request from external slave. Mute ON : H
42 LX_CON O LX External slave select. ON : H, OFF : L
43 LX_RST O LX Reset output to external slave
µ
-com.
Normally : L, After system reset : H (400ms
or more) and then L
44 NC O NC (Without WMA, MP3 model) Output : L
45 TYPE0 I Extra Destination select.
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46 TYPE1 I Extra Destination select.
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47 IC2_TYPE0 I Extra IC2 destination.
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48 IC2_TYPE1 I Extra IC2 destination.
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49 NC O NC Output : L
50 E2P5V I/O Power supply E2PROM, DA converter power supply control. ON : L, OFF : Hi-Z
51 DSI I/O To panel DSI control. ON : L, OFF : Hi-Z
52 L_CE O To panel Chip enable output to LCD driver.
53 L_INH O To panel Inhibit signal output to LCD driver. Normally : H, Reset, momentary power dropped : L
54 VOL A I To panel VOL input.
55 BVDD -
56 BVSS -
57 VOL B I To panel VOL input.
58 M_RST O CD Reset output to CD mechanism. Normally : H, Reset : L (Per mechanism control)
59 M_STOP O CD Stop request to CD mechanism. Stop : L, CD : H
60 CD_SW3 I CD DC down switch detection. Chucking : H
61 LO/EJ I/O CD CD mechanism loading/eject switch. Stop, brake : Hi-Z, Loading : L, Eject : H
62 MOSW O CD CD mechanism motor driver switch. Loading, eject, brake : H
63 FPM MOTOR B O P-mecha FPM mechanism (Slider) control.
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