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3. TECHNICAL BRIEF
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ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ͑
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3.12.3.3 KEY Backlight
There are 4 White side view LED, 4 white LED in key backlight circuit
Figure. KEY Backlight
27
11
R
1
37
11
R
1
57
11
R
1
LD1
LD4
LD3
LD2
C1931
2.2u
47
11
R
1
+VPWR
BACKLIGHT_KEY