Panasonic KX-FP207FX-S

45
KX-FP207FX-S/FP218FX-S
6.9. 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
(IC301) and ASIC (IC501: on the Digital BOARD).
The key matrix table is shown below.
Key Matrix
CN301CN504
IC501
ASIC
LCD MODULE
GATE ARRAY
IC301
CN302
DOCUMENT TOP SW
DOCUMENT SET SW
8x5
KEYS
MATRIX
DIGITAL BOARD
OPERATION BOARD BLOCK DIAGRAM
XLED9, 10
KIN0~7
R320
AUTO ANSWER
KSL0~4
LED2
LED301
+5V