Kenwood KDC-X959, Руководство по обслуживанию

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KDC-X959/Z939,Z738,Z838W
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IC8 (SWITCH UNIT: X16-169X-XX)
Pin No. Pin Name I/O Description Processing Operation
1-7 D14-D8 I/O Data input/output with OEL, SRAM IC and ROM IC
8 PAN3.3VDD - Positive power supply connection terminal Connected to 3.3V lines.
9 VSS - Ground connection terminal Connected to GND lines.
10-17 D7-D0 I/O Data input/output with OEL, SRAM IC and ROM IC
18 MODE2 I Not used(Pull down to GND lines)
19-21 NC O Not used(N.C.)
22 RSTB_OEL I/O Reset output to OEL Lo: Reset, Hi-Z: Normal operation
23,24 NC I/O Not used(N.C.)
25 SRAM_TESTI I SRAM test terminal Not used(Pull down to GND lines)
26 SRAM_TESTO O SRAM test terminal Not used(N.C.)
27 PAN3.3VDD - Positive power supply connection terminal Connected to 3.3V lines.
28 VSS - Ground connection terminal Connected to GND lines.
29-33 KR1-5 I Key return input 1-5
34 NC O Not used(N.C.)
35 SRAM_CH O Not used(N.C.)
36
16V OEL,
I/O LED, OEL AVR ON/OFF control output Hi-Z: AVR OFF, Hi: AVR ON
ILL BLUE
37 PAN3.3VDD - Positive power supply connection terminal Connected to 3.3V lines.
38 VSS - Ground connection terminal Connected to GND lines.
39 NC O Not used(N.C.)
40-43 KS4-1 I/O Key scan output 4-1 Lo: Scan ON, Hi-Z: Scan OFF
44,45 NC O Not used(N.C.)
46 NMI I Not used(Connected to GND lines)
47 PAN3.3VDD - Positive power supply connection terminal Connected to 3.3V lines.
48 VSS - Ground connection terminal Connected to GND lines.
49 CE_SD O Data line chip select output to IC9 Hi: SCDATA output enable
50 NC O Not used(N.C.)
51 SCREQ O Communication request output to the system MI-COM. Lo: Standby, Hi: Request
52 NC O Not used(N.C.)
53 MCREQ I Communication request input from the system MI-COM. Hi: Request
54,55 NC O Not used(N.C.)
56 FCS I/O CS output to the flush ROM IC Lo: Chip select
57 MODE1 I Not used(Pull down to GND lines)
58 MODE0 I Not used(Pull down to GND lines)
59 PARST I Reset input Lo: Reset
60 CKSEL I Clock generator operation mode setting terminal Connected to GND lines.
61 CVDD - Positive power supply connection terminal Connected to 3.3V lines.
62 X2 - Main clock resonator connection terminal
63 X1 I Main clock resonator connection terminal
64 CVSS - Ground connection terminal Connected to GND lines.
65 MCCLK I Clock input from the system MI-COM.
66 MCDATA I Data input from the system MI-COM.
67 SCDATA O Data output to the system MI-COM.
68 FCLK O Write clock output to the flush ROM IC
69 FDATAIN I/O Data input from the flush ROM IC
70 FDATAOUT O Data output to the flush ROM IC
71 AVDD - A/D converter positive power supply connection terminal Connected to 3.3V lines.
72 AVSS - A/D converter ground connection terminal Connected to GND lines.
73 ANI7 I A/D converter analogue input terminal Not used(Connected to GND lines)
74 WAVE IN I Audio input
75 F06 I BPF(10kHz) input
76 F05 I BPF(3.3kHz) input
77 F04 I BPF(1kHz) input
78 F03 I BPF(330Hz) input
79 F02 I BPF(150Hz) input
80 F01 I BPF(63Hz) input
81 PAN3.3VDD - Positive power supply connection terminal Connected to 3.3V lines.
MICROCOMPUTER'S TERMINAL DESCRIPTION
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