Apollo ESP6000 User Manual

Page of 104
User’s Manual 
 
ECM-3612 User’s Manual 
 
53
 
2.3.24 
LCD Backlight Brightness Adjustment Connector (VR1) 
 
 
PIN
Signal 
1
GND 
2
VR 
3
VCC 
 
 
VCC
 
J1 pin 4
VR1
1
2
3
Variation Resistor (Recommended: 4.7KΩ, >1/16W)
 
2.3.25 
STN LCD Contrast Adjustment Connector (VR2) 
 
 
PIN
Signal 
1
GND 
2
Vcon
 
3
VCC3