LG KE990 Service Manual - Page 102
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4. TROUBLE SHOOTING +VPWR LD703 (+VPWR) LD703 200 SSC-FR104-II1 LD701 200 SSC-FR104-II1 SSC-TWH104-HL LD700 LD705 47 LEGG-S14G LD702 47 LEGG-S14G LD704 47 SSC-TWH104-HL R711 47 R714 R712 R716 R713 R715 Rev. 1.1 LD700~705 and R711~716 (Main) VA708 (KYPD_LED_N) KYPD_LED_EN VA708 EVL14K02200 (GREEN) (WHITE) (RED) Schematic of keypad backlight part Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes - 103 - LGE Internal Use Only
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 103 -
Rev. 1.1
(WHITE)
(RED)
(GREEN)
200
R714
LD700
SSC-TWH104-HL
47
R713
LEGG-S14G
LD702
SSC-TWH104-HL
LD704
SSC-FR104-II1
LD701
SSC-FR104-II1
LD703
R711
47
LEGG-S14G
LD705
R716
47
47
R715
200
+VPWR
R712
VA708
EVL14K02200
KYPD_LED_EN
Schematic of keypad backlight part
LD703 (+VPWR)
LD700~705 and R711~716 (Main)
VA708 (KYPD_LED_N)