Samsung SCX-1150F Repair Manual page 40

2) Received DATA(transmitted by MAIN)
1. DATA TYPE
DATA types
a1 H
a2 H
a3 H
a4 H
b1 H
2. NO. OF DATA
• In case DATA is N BYTE, N+1
3. DATA
In case DATA TYPE is LCD DATA, it is configured with ASCII CODE to be displayed.
In case DATA TYPE is LED DATA, it is 1 BYTE.
LED DATA BIT ASSIGNMENT:
DATA BIT BIT 0
LED NO. LED 0
4. CHECK SUM
The value done XOR all of them from DATA TYPE to DATA.
5. Change of LCD types
<2 LINE * Change to 16 character LCD>
DATA TYPE : b1 H
NO. OF DATA : 2
DATA : 26 H
CHECK SUM : b1h XOR 2 XOR 16h = a5 h
<1 LINE * Change to 16 character LCD>
DATA TYPE : b1 H
NO. OF DATA : 2
DATA : 26 H
CHECK SUM : b1h XOR 2 XOR 26h = 95 h
DEFAULT : 2 LINE 16 Character LCD
In case the MAIN does not change the LCD types, it is the Default LCD state of OPE MICOM.
* SCX-1150F uses 1 LINE LCD.
Samsung Electronics
Meaning
LCD DISPLAY DATA(FULL LINE)
LCD DISPLAY DATA(1'ST LINE)
LCD DISPLAY DATA(2'ST LINE)
LED DATA
Change of LCD types
BIT 1 BIT 2 BIT 3
LED 1 LED 2 LED 3
CIRCUIT DESCRIPTION
BIT 4 BIT 5 BIT 6
LED 4 LED 5 LED 6
Remarks
BIT 7
LED 7
Repair Manual
3-37