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		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		Operation		ISSUE DATE		REV:		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
		Check AUD_HP_EN
	MAX4411
Speaker
		Check AUD_HPL
		Check AUD_HPR

	Check AUD_HPL2
	Check AUD_HPR2
CON15	Check CON15 Component