Kenwood KDC-X679 Service Manual page 9

MICROCOMPUTER'S TERMINAL DESCRIPTION
PANEL MICROCOMPUTER : 30622MWP111GP (X16-251 : IC1)
Pin No. Pin Name Module
1 NC
2 REMO REMO
3 GSO0 FL
4 NC
5 GCLK0 FL
µcom
6 BYTE
µcom
7 CNVSS
8,9 NC
µcom
10 RESET
µcom
11 XOUT
µcom
12 VSS
µcom
13 XIN
µcom
14 VCC1
15 NMI
16 SOURCE KEY
17 EJECT KEY
18 SCCON to SYS
19 NC
20 GCP FL
21 NC
22 GLAT FL
23 NC
24 GBK FL
25,26 NC
27 SCL
28 SDA
29 PN_SDA to SYS
30 PN_SCL to SYS
31 SC_REQ to SYS
32 PN_REQ to SYS
33 GSO1 FL
34 NC
35 GCLK1 FL
36 E2P_DET
37,38 NC
39 EPM
40~43 NC
I/O Application
O Not used
I Remote control signal input
O FL dot section data output terminal 0
O Not used
O FL dot section clock output terminal 0
- Not used
Used when rewriting µcom
-
O Not used
- Reset terminal
- Clock output
- GND terminal
- Clock input
- Positive power supply terminal
I Not used
I Source key input
I Eject key input
System µcom communication panel operation control
I
O Not used
O FL dot section gradation occurrence
O Not used
O FL dot section data latch output
O Not used
O FL dot section data blanking output
O Not used
O E2PROM write clock terminal
O E2PROM write terminal
System µcom communication data input/output terminal
I/O
System µcom communication clock input/output terminal
I/O
I Panel communication request input
O Panel communication request output
O FL dot section data output terminal 1
O Not used
I FL dot section clock input terminal
I E2PROM write request
O Not used
Used when rewriting µcom
I
O Not used
KDC-X679
Processing Operation Description
Output : L
Pulse width DET
Data output
Output : L
2.0MHz
0V GND direct connection
Output : L
L : Reset
10.000MHz
H : ON, L : OFF
H : ON, L : OFF
H : Operation
Output : L
Gradation occurrence
Output : L
Data latch output
Output : L
H : Light ON, L : Light OFF
Output : L
When E2P_DET is H : Input,
Other : I2C clock output terminal
When E2P_DET is H : Input,
Other : I2C data output terminal
100kHz
L : Transmitting panel side data
Data output
Output : L
GCLK0 input
H : Write
Output : L
Output : L
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