Kenwood KDC-X959 Service Manual page 6

KDC-X959/Z939,Z738,Z838W
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MICROCOMPUTER'S TERMINAL DESCRIPTION
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Pin No. Pin Name
82 VSS
83 NC
84 SARST
85 REMO
86 NC
87 FROM_CH
88 NC
89,90 NC
91 RDY/RY
92-94 NC
95 OE/RD
96 WE/WR
97 UWE/LWR
98 PAN3.3VDD
99 VSS
100 RESET ROM I/O Reset output to the ROM IC
101 WP ROM
102,103 NC
104 CS ROM
105 NC
106 CS RAM
107 CS OEL
108 UBE
109 LBE
110 RED
TE
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111 GREEN
112 PAN3.3VDD
113 VSS
114-117 NC
118-123 A20-A15
124 PAN3.3VDD
125 VSS
126-128 A14-A12
129 A11/RS
130-133 A10-A7
134 PAN3.3VDD
135 VSS
136-142 A6-A0
143 NC
144 D15
IC1 (ELECTRIC UNIT: X25-9270-XX)
Pin No. Pin Name
1 MC DATA
2 MC CLK
3 DSI GUIDE
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4 EJECT KEY G
5 EJECT KEY R/G
MC REQ/
6
FLIP DET
6
I/O Description
- Ground connection terminal
O
O Reset output to the BPF IC
I Data input from the remote control light sensor
I
O
I
O
I RDY signal input
O
I/O Read control output to OEL, SRAM IC and ROM IC Lo: Read, Hi-Z: Other
I/O Write control output to OEL and SRAM IC
I/O Write control output to OEL and SRAM IC
- Positive power supply connection terminal
- Ground connection terminal
I/O Boot block, Write protect
O
O CS output to the ROM IC
O
O CS output to the SRAM IC
O CS output to OEL
I/O Bus enable output of D8-D15
I/O Bus enable output of D0-D7
Illumination red ON/OFF output in case of two colours
O
/Illumination ON/OFF output in case of one colour
Illumination green ON/OFF output in case of two colours Lo: ON, Hi: OFF in case of two colours
O
/Not used in case of one colour
- Positive power supply connection terminal
- Ground connection terminal
O
I/O Address bus
- Positive power supply connection terminal
- Ground connection terminal
I/O Address bus
I/O Address bus
I/O Address bus
- Positive power supply connection terminal
- Ground connection terminal
I/O Address bus
I/O
I/O Data input/output with OEL, SRAM IC and ROM IC
I/O Description
I/O Data input/output with the panel MI-COM.
O Clock output to the panel MI-COM.
I/O DSI control output
O Eject key illumination green control output
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O Eject key illumination red/green control output
Communication request output to the panel MI-COM. Hi: Request
I/O
/Flip detection input
8
Connected to GND lines.
Not used(N.C.)
Hi: Reset
Not used(N.C.)
Not used(N.C.)
Not used(N.C.)
Not used(N.C.)
Not used(N.C.)
Lo: Write, Hi-Z: Other
Lo: Write, Hi-Z: Other
Connected to 3.3V lines.
Connected to GND lines.
Lo: Reset, Hi-Z: Normal operation
Lo: Write, Hi-Z: Other
Not used(N.C.)
Lo: Chip enable
Not used(N.C.)
Lo: Chip select
Lo: Chip select
Lo: Permission, Hi-Z: Inhibit
Lo: Permission, Hi-Z: Inhibit
Q Q
Lo: ON, Hi: OFF
3 6 7 1 3
/Not used(N.C.) in case of one colour
Connected to 3.3V lines.
Connected to GND lines.
Not used(N.C.)
Connected to 3.3V lines.
Connected to GND lines.
Connected to 3.3V lines.
Connected to GND lines.
Not used(N.C.)
Lo: DSI ON, Hi-Z: DSI OFF
Lights on at the panel tilted during POWER ON mode.
Flashing at the panel detached during POWER ON mode.
Lo: ON, Hi-Z: OFF
Lights on at the panel tilted during POWER ON
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mode in case of the key illumination green.
Lo: ON, H-Z: OFF
.
Lights on at the panel tilted during POWER ON mode.
/Lo: Panel detected, Hi: Panel attached
2 9 9 4 2 8
Processing Operation
1 5 0 5 8 2 9 9 4
Processing Operation
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9 9
2 8 9 9