LG GT540 - USB Trouble

- 116 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. Trouble Shooting
4.11. USB trouble
USB Initial sequence of GT540 is :
USB connected to GT540 Æ VCHG_VBUS go to 5V Æ VERG_MSME_1.8V is about 1.8V Æ USB_CLK is OK Æ
USB work
΅΁
΅΁
΅΁
TP1
TP3
TP2