Oki S900, Руководство по обслуживанию

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S900
4-6
4.2.4 PANEL AND LCD MODULE CIRCUIT
The circuit for Panel and LCD module controls the function of the entire module including the
LCD Display, the push button on the Control Panel, and LED display.
Pin assignment of LCD module
Pin No. Name Function
1 D.G. Digital Ground
2 KPDATA0 Data Bus bit 0
3 KPDATA1 Data Bus bit 1
4 D.G Digital Ground
5 KPDATA2 Data Bus bit 2
6 KPDATA3 Data Bus bit 3
7 D.G. Digital Ground
8 KPDATA4 Data Bus bit 4
9 KPDATA5 Data Bus bit 5
10 D.G. Digital Ground
11 KPDATA6 Data Bus bit 6
12 KPDATA7 Data Bus bit 7
13 D.G. Digital Ground
14 VCC Digital Power Supply
15 VCC Digital Power Supply
16 VCC Digital Power Supply
17 VCC Digital Power Supply
18 D.G. Digital Ground
19 D.G. Digital Ground
20 LCDA0 LCD Address 0
21 KPnECS Panel Chip Select
22 KPnWE Panel Write Enable
23 KPnOE Panel Output Enable
24 /KBRD Scan Key Read Chip Select
25 /KBWR Scan key Write Chip Select
26 /LCDCS LCD Module Chip Select
27 /LED0 LED Chip Select 0
28 /LED1 LED Chip Select 1
29 /LED2 LED Chip Select 2
30 D.G. Digital Ground
31 - 8V LCD Driver Power
32 /RESET LCD Reset Signal