Panasonic KX-MB262CX Service Manual page 15

KX-MB262CX/KX-MB772CX KX-MB262CX/KX-MB772CX
6. 6.13 13. . OP OPER ERA A TI TION B ON BOA
The unit consists of a LCD (Liquid crystal display), KEYs and LEDs (light-emitting diodes). They are controlled by the Gate Array The unit consists of a LCD (Liquid crystal display), KEYs and LEDs (light-emitting diodes). They are controlled by the Gate Array
(IC1) on Operation board and IC300 on Main board. (IC1) on Operation board and IC300 on
The key matrix table is shown below. The key matrix table is shown below.
ASIC ASIC
CN511 CN511
IC300 IC300
M M A A I I N N B B O O A A R R D D
1. 1. Key Matrix Key Matrix
a. a. Har Hard Sc d Scan an
K K I I N N 0 0
K K S S L L 0 0 A A U U T T O O A A N N S S W W E E R R S S 1 1
K K S S L L 1 1 F FA A X X S S 2 2
K K S S L L 2 2 C C O O P P Y Y C C O O L L L L A A T T E E
K K S S L L 3 3 C C O O N N T T R R A A S S T T
KSL4 KSL4 S S C C A A N N R R E E S S O O L L U U T T I I O O N N L L O O W W E E R R
(LED7) (LED7)
*LED7 should be set to KSL4. *LED7 should be set to KSL4. "8 x 5" key matrix is executed by hardw
2. 2. LED LED
• • AUTO AN AUTO ANSWER LED ON/O SWER LED ON/OFF port---LED6 (IC1-
• • FAX FAX MODE LED O MODE LED ON/OFF port---XLED N/OFF port---XLED8 (IC1-5pin)
• • COPY MOD COPY MODE LED ON/OFF E LED ON/OFF port---LED5 (IC1-41pin)
• • SCAN MOD SCAN MODE LED ON/OFF E LED ON/OFF port---LED2 (IC1-36pin)
OARD S RD SEC ECTI TION ON
Main board.
CN2 CN2
GATE ARRAY IC GATE ARRAY IC
K K I I N N 1 1 K K I I N N 2 2
S S 3 3 M M O O N N I I T T O O R R
Z Z O O O O M M F F L L A A S S H H
R R E E D D I I A A L L
N N i i n n 1 1 M M E E N N U U
C C A A L L L L E E R R I I D D
"8 x 5" key matrix is executed by hardware scanning.
FF port---LED6 (IC1-2pin) 2pin)
8 (IC1-5pin)
port---LED5 (IC1-41pin)
port---LED2 (IC1-36pin)
LCD MODULE LCD MODULE
CN1 CN1
IC1 IC1
O O P P E E R R A A T T I I O O N N B B O O A A R R D D
K K I I N N 3 3 K K I I N N 4 4
↓ ↓
* *
← ←
7 7
S S E E T T 4 4
↑ ↑
2 2
→ →
1 1
are scanning.
8x5 8x5
KEYS KEYS
MATRIX MATRIX
(Hard) (Hard)
LED LED
K K I I N N 5 5 K K I I N N 6 6
# # - -
0 0 S S T T A A R R T T
9 9 6 6
5 5 S S T T O O P P
8 8 3 3
K K I I N N 7 7