HTC P/N 51H00369-XXM manual Power Problem, Problem verify and check as below

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宏達國際電子股份有限公司 HTC Corporation

					Excalibur MB Repair Guide					PAGE : 10 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

3.1 Power Problem

Problem verify and check as below

1.Check V_DCIN (PR82 pin 1) 2.Check VCC_SYR (R46 pin 2) 3.Check V_Backup (PC79 pin 1) 4.Check VDD_RTC (R2 pin 2) 5.Check PWON# (C96 pin 2) 6.Check Regen (D4 pin 1)

7.Check V_CORE_1V6 (PR13 pin 1) 8.Check V_2V85 (WER21 pin 2) 9.Check V_3V3 (PJ14 pin 2)

10.Check V_CPLD2V85 (PJ15 pin 2) 11.Check CPLD_RESET# (D19 pin 2) 12.Check ON_OFF# (C87 pin 1)

13.Check WE_OMAP_26M (WER25 pin 1) 14.Check V_FLASH_CORE_1V85 (C464 pin 1) 15.Check V_FLASH_RESET (R724 pin 2) 16.Check V_FLASH_CS# (R725 pin 2)

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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 belowTWL3027 Receiver Audio ProblemMAX4411 Speaker Charge Problem Backlight Problem USB Problem Vibrator Problem Micro SD Problem Q3.Syren Location ?