HTC P/N 51H00369-XXM manual USB Problem

Page 14

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					Excalibur MB Repair Guide					PAGE : 14 OF 16
	機種	Excalibur-series	料號	51H00369-XXM	文件編號	GSD-00005575			製作	李文騰
	MODEL	Excalibur-series	P/N	51H00369-XXM	Doc NO.	GSD-00005575			Initiator	Wenteng_Lee
	MODEL		P/N		Doc NO.				Initiator	Wenteng_Lee
	站別	Repair Center	作業名稱	M/B Repair Guide	發行日期	2008/11/13	版本	AX03	備註	III.Excalibur series
	STATION	Repair Center	Operation	M/B Repair Guide	ISSUE DATE	2008/11/13	REV:	AX03	Remark	failure MB debug

	3.5 USB Problem								Problem verify and check as below


	VBUS	D+	D-
RS232	0	1	0
USB	1	0	1
AC	1	0	0
Carkit	1	1	0

U1

CPU

CON15

USB

Check VBUS、D+、ID

Image 14

Contents Excalibur Series MB Repair Guide Table of content Purpose Introduction of repair hand tools & equipments Oscilloscope GOS-6103C Main Board Top side Main Board Botton side Replace tools vs L2.5 Component Top side Replace tools vs L2.5 Component Botton side Power Problem Problem verify and check as belowMAX4411 Speaker Audio ProblemTWL3027 Receiver Charge Problem Backlight Problem USB Problem Vibrator Problem Micro SD Problem Q3.Syren Location ?