Only For Training And Service Purposes - LG KP270 Service Manual

3. TECHNICAL BRIEF
3.10.2 Function KEY back-light illumination
S-GOLD3H-LC is control the Tr for Function KEY back-light illumination.
SUB KEY LED
C803
1u
R801
150
UPPER_KEY_LED
[Figure 3.10.2-1] Function KEY back-light LED circuit diagram
LGE Internal Use Only
VBAT
R802 R803 R804
150 150 150
Q801
R809 1K
KTC4075E
R810
10K
- 42 -
R805 R806 R807
150 150 150
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C804
1u
R808
150

Only for training and service purposes