Only For Training And Service Purposes - LG L704I Service Manual

3. TECHNICAL BRIEF
3.11.7. Numeric Keypad Light & Touch LED Light
There are 2 White LEDs in SUB PCB, which are driven by SUB_LED_DRV_N line from PM6650.
There are 7 Orange LEDs in Touch FPCB, which are driven by KEY_LED_DRV_N line from PM6650.
+VPWR
LGE Internal Use Only
KEYPAD LIGHTING
+VPWR
LD3
CL-435F-WQ-SD-TS
EDLH0014302
Figure. Numeric Keypad lighting Circuit
ORANGE LED
LD900
R2
1
A
22
LD901
R3
1
A
22
LD902
R4
1
22
R1
1
A
22
R5
1
A
22
R6
1
A
22
Figure. Touch Pad lighting Circuit
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LD4
CL-435F-WQ-SD-TS
SUB_LED_DRV_N
2
CL-482S-TR1-CD-TS EDLH0014201
C
2
CL-482S-TR1-CD-TS EDLH0014201
C
2
CL-482S-TR1-CD-TS EDLH0014201
C
LD903
2
CL-482S-TR1-CD-TS EDLH0014201
C
LD904
2
CL-482S-TR1-CD-TS EDLH0014201
C
LD905
2
CL-482S-TR1-CD-TS EDLH0014201
C
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KEY_LED_DRV_N

Only for training and service purposes