Kenwood KVT-915DVD Service Manual page 12

KVT-915DVD,925DVD,935DVD
KVT-945DVD,965DVD
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MICROCOMPUTER'S TERMINAL DESCRIPTION
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Pin No. Name
54 NAVI_V
55 VOL_DOWN
56 VOL_UP
57 OPEN_KEY
58 NC
59 V_MUTE
60 PORTVDD1
61 BRIGHT
62 M_REQ
63 S_REQ
64 ACC_DET
65 DMIX_MUTE
66 HD
67 SYS_ON
68 ILL
69 NC
70 XT2
71 XT1
72 GND2
TE
73 L 13942296513 X1
74 X2
75 RGB_SW
76 DISC_DET
77 REMO
78 P_ON
79 SYNC_SW
80 NAVI_SEL
81 POW7_CON
82 POWER_DET
83 BU_DET
84 SDA
85 NC
86 SCL
87~89 MODE3~MODE1
90 DSP_RST
91 DSP_EN
92 PORTGND1
93 DSP_CLK
94 DSP_SI
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95 DSP_SO
96 BE_SREQ
97 BE_CLK
.
98 BE_SDATA
99 BE_MDATA
100 BE_MREQ
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I/O
O NAVI display center position control (L : Display for NAVI & illumination on, H : Except NAVI)
I Volume down key input terminal
I Volume up key input terminal
I Monitor display open/close key input terminal
- NC
O Video muting (L : Muting)
- VDD (BU5V)
O Dimmer control for inverter (L : Backlight lighting off)
O Request for X25 microprocessor
I Request from X25 microprocessor
I ACC detector (L : Detect to ACC voltage)
O Audio down mix line muting (H : Muting)
I NAVI H sync. detect input terminal
O On/off control for X25 unit (H : On, L : Off)
I Illumination detect signal from X25 unit
- NC
- Sub clock (32.768kHz)
I Sub clock (32.768kHz)
- GND
I Main clock (16.9344MHz)
- Main clock (16.9344MHz)
O RGB signal selector
I DISC insert detect terminal (L : Startup to disc insert for the unit)
I Remote control signal input terminal
O Power on/off control (H : Power on)
O Sync. signal selector
O Control for sync. separator IC
O 7V AVR voltage control (H : 5V, L : 7.5V)
I BU line condition detect terminal (L : Power voltage trouble)
I +B line reduced voltage detector (L : Correct for +B line)
I/O Panel mechanism position memory control & ROM correction control (I2C)
O NC
I/O Panel mechanism position memory control & ROM correction control (I2C)
O Setting for monitor display (Seting 3~1)
O Reset for DSP IC (L : Reset)
O Enable signal for DSP IC
- GND
O Clock for DSP IC
I Data from DSP IC
O Data for DSP IC
I Request signal from back-end microprocessor
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y
I Clock from back-end microprocessor
i
I Data from back-end microprocessor
O Data for back-end microprocessor
O Request signal for back-end microprocessor
2 9
8
Description / Processing Operation
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0 5 8 2 9 9 4 2 8
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