Kenwood DM-VH7, Руководство по обслуживанию

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DM-VH7
4
CIRCUIT DESCRIPTION
Pin No. Name I/O Description
1 VOL_DT O Electric VOL IC • communication data
2 VOL_CK O Electric VOL IC • communication clock
3 - O Not used
4 DISP_CE O Display ucom • communication CE
5 DISP_OUT O Display ucom • communication data output
6 DISP_IN I Display ucom • communication data input
7 DISP_CLK O Display ucom • communication clock
8 BYTE - Ucom mode data bus setting
9 CNVss - Ucom mode • inner ROM
10,11 - - Not used
12 RESET I Ucom reset
13 Xout O Ucom oscillation 10MHz output
14 Vss - GND
15 Xin I Ucom oscillation 10MHz input
16 Vcc - Power supply
17 NMI - Ucom compulsion thrust
18 - O Not used
19 CE I Ucom CE
20 REM I Remote control input
21 DISP_RST O Display ucom reset
22 LCD_BL O LCD backlight (Dimmer)
23 POWER O Power supply circuit H: ON
24 LED_EJECT O LCD • EJECT(Dimmer)
25 BACK_V_CHK O Backup voltage check circuit H: ON
26 BACK_V_ON O Backup charge H: ON
27 MECHA_CE O MD mecha. ucom CE
28 MECHA_RST O MD mecha. reset L: RESET ON
29 MECHA_RXD I MD mecha. communication input
30 MECHA_TXD O MD mecha. communication output(N-ch)
31~34 - - Not used
35 TIRLER_TXD O Titular communication output
36 TIRLER_RXD I Titular communication input
37 SDATA I/O Serial data (SL16)
38 SBUSY I/O Serial busy (SL16)
39 RDY I Extension bus control
40 - - Not used
41 HOLD I Extension bus control
42~61 - - Not used
62 Vcc - Ucom power supply (5V)
63 - - Not used
64 Vss - Ucom power supply (GND)
65~74 - - Not used
75 AMUTE O Analog mute
76,77 - - Not used
78 LED_REC O LED REC
79 - - Not used
80 LED_STBY O LED STANDBY
81~88 - - Not used
89~91 KR0~2 I Key return
92 BACK_V I Backup voltage check
93 INISW I Destination switch H: except J type
94 XY_POSITION I X-Y position
95 I_PROTECTION I Current protection
96 AVss - A/D power supply (GND)
97 - - Not used
98 Vref - A/D reference voltage (5V)
99 AVcc - A/D power supply (GND)
100 VOL_LEN O Electric VOL IC • communication data latch
2-2 Pin description
DM-VH7(K) COVER1,1P( 99.10.29 2:43 PM y [ W 7
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