LG GW620 - Changing the video image size; Your photos and videos

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. Technical Brief
3.14.3.3 KEY Backlight
There are 4 White side view LED, 3 white,1 Green LED in key backlight circuit
Those LEDs are driven by KPD_DRV_N, SHIFT_DRV_N, SLIDE_KPD_DRV_N line from PM7540.
Figure. Schematic of QTKEY Keypad SIDE back light circuit
Figure. Schematic of Shift key LED & Slide key LED back light circuit
SSC-SWTS1007
LD4
21
A C
SSC-SWTS1007
LD3
21
A C
SSC-SWTS1007
LD2
21
A C
SSC-SWTS1007
LD1
21
A C
51ohms
R119
51ohms
R123
51ohms
R122
51ohms
R117
51ohms
R115
EVLC5S0250
VA30
smho064R
+VPWR
KPD_DRV_N
KEY BACKLIGHT LED
WH107
LD5
+VPWR
EVLC5S0250
VA34
51ohms
R39
51ohms
R58
SHIFT_DRV_N
SHIFT KEY LED
SSC-SWTS1007
LD4
21
A C
SSC-SWTS1007
LD3
21
A C
SSC-SWTS1007
LD2
21
A C
SSC-SWTS1007
LD1
21
A C
51ohms
R119
51ohms
R123
51ohms
R122
51ohms
R117
51ohms
R115
EVLC5S0250
VA30
smho064R
+VPWR
KPD_DRV_N
KEY BACKLIGHT LED