Operation Board Section - Panasonic KX-MB2061CXB Service Manual

6.15. Operation Board Section

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.
The key matrix table is shown below.
ASIC
IC300
MAIN BOARD
1. Key Matrix
a. Hard Scan
KIN7
KSL0 RESOLUTIOIN
KSL1 CONTRAST
KSL2 COLLATE
KSL3 ZOOM
KSL4 LOCATOR
(LED7) ANSWER
*LED7 should be set to KSL4. "8 x 5" key matrix is executed by hardware scanning.
2. LED
• AUTO ANSWER LED ON/OFF port---LED2 (IC1-36pin)
• FAX MODE LED ON/OFF port---XLED10 (IC1-9pin)
• COPY MODE LED ON/OFF port---XLED12 (IC1-15pin)
• SCAN MODE LED ON/OFF port---XLED11 (IC1-16pin)
• PLAYBACK LED ON/OFF port---LED3 (IC1-37pin)
CN511 CN2
KIN6 KIN5
S4 S2
FLASH PLAYBACK
←
S1
S3 COPY
AUTO SCAN
LCD MODULE
CN1
GATE ARRAY IC
IC1
KIN4 KIN3
MENU 9
MONITOR #
REDIAL 3
N in 1 START
FAX 6
69
KX-MB2061CXB/KX-MB2061CX2/KX-MB2062CXB
8x5
KEYS
MATRIX
(Hard)
LED
OPERATION BOARD
KIN2 KIN1
↓
7
→
RECORDING 1
↑
STOP
SET 4
KIN0
8
0
2
ERASE
5