HTC P/N 51H00369-XXM manual Audio Problem, TWL3027 Receiver, MAX4411 Speaker

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					Excalibur MB Repair Guide					PAGE : 11 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

3.2 Audio Problem

U1

OMAP850

Problem verify and check as below

Check AUD_MIC_BIAS

Check AUD_INT_MICP1

Check AUD_INT_MICN1

Check AUD_SPK_P1

Check AUD_SPK_N1

MIC1			U3	ACON2	Check AUD_RECE_P1
Receiver			TWL3027	Receiver	Check AUD_RECE_N1
ACON1			AU1	Check V_2V85
ACON1			AU1	Check AUD_HP_EN
			MAX4411
Speaker
Speaker				Check AUD_HPL
				Check AUD_HPR

	Check AUD_HPL2
	Check AUD_HPR2
CON15	Check CON15 Component

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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 Problem verify and check as below Power ProblemMAX4411 Speaker Audio ProblemTWL3027 Receiver Charge Problem Backlight Problem USB Problem Vibrator Problem Micro SD Problem Q3.Syren Location ?