Panasonic KX-MB262CX, Service Manual

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KX-MB262CX/KX-MB772CX KX-MB262CX/KX-MB772CX
6. 6.13 13.. OP OPER ERA ATI TION B ON BOA OARD S RD SEC ECTI TION ON
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
(IC1) on Operation board and IC300 on Main board. Main board.
The key matrix table is shown below. The key matrix table is shown below.
1. 1. Key Matrix Key Matrix
a. a. Har Hard Sc d Scan an
*LED7 should be set to KSL4. *LED7 should be set to KSL4. "8 x 5" key matrix is executed by hardw "8 x 5" key matrix is executed by hardware scanning. are scanning.
2. 2. LED LED
•• AUTO AN AUTO ANSWER LED ON/O SWER LED ON/OFF port---LED6 (IC1- FF port---LED6 (IC1-2pin) 2pin)
•• FAX FAX MODE LED O MODE LED ON/OFF port---XLED N/OFF port---XLED8 (IC1-5pin) 8 (IC1-5pin)
•• COPY MOD COPY MODE LED ON/OFF E LED ON/OFF port---LED5 (IC1-41pin) port---LED5 (IC1-41pin)
•• SCAN MOD SCAN MODE LED ON/OFF E LED ON/OFF port---LED2 (IC1-36pin) port---LED2 (IC1-36pin)
K KIIN N0 0 K KIIN N1 1 K KIIN N2 2 K KIIN N3 3 K KIIN N4 4 K KIIN N5 5 K KIIN N6 6 K KIIN N7 7
K KS SL L0 0 A AU UT TO O A AN NS SW WE ER R S S1 1 S S3 3 M MO ON NIIT TO OR R
↓ ↓
**
# # --
K KS SL L1 F 1 FA AX X S S2 2 Z ZO OO OM M F FL LA AS SH H
← ←
7 7 0 0 S ST TA AR RT T
K KS SL L2 2 C CO OP PY Y C CO OL LL LA AT TE E R RE ED DIIA AL L S SE ET T 4 4 9 9 6 6
K KS SL L3 3 C CO ON NT TR RA AS ST T N N iin n 1 1 M ME EN NU U
↑ ↑
2 2 5 5 S ST TO OP P
KSL4 KSL4
(LED7)
(LED7)
S SC CA AN N R RE ES SO OL LU UT TIIO ON N L LO OW WE ER R C CA AL LL LE ER R IID D
→ →
1 1 8 8 3 3
CN2 CN2 CN511 CN511
IC300 IC300
ASIC ASIC
LCD MODULE LCD MODULE
CN1 CN1
8x5 8x5
KEYS
KEYS
MATRIX
MATRIX
(Hard)
(Hard)
LED LED
M MA AIIN N B BO OA AR RD D O OP PE ER RA AT TIIO ON N B BO OA AR RD D
GATE ARRAY IC GATE ARRAY IC
IC1 IC1