Kenwood NX-411 Service Manual page 88

NX-411
Display unit (X54-3770-10)
88
BLOCK DIAGRAM
CN8
A0
D0~D7
/WR,/LCDRST
33M
LCDCNT
IC102
NJM2130F3-ZB
5A -10V
DCDC
IC105 LM2682MMX
KEYO 0,1,2,3 KEY Matrix
/KEYI 0,1,2,3,4 (6key+12key)
VKEY
D5,6,7,8
D9,10
VLCDLED
D15,16
D17,18
D1,2
D3,4
MIC
INTMIC
12key Back Light
LCD Back Light
6key Back Light