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Презентация на тему Asus repair. Audio. (Lesson 3)

AUDIOSouthBridge5-pin serial data transaction : BIT_CLK, SYNC, RESET,SDATA_IN, SDATA_OUT
AudioSephiroth KwonGRMA26-05-2009 AUDIOSouthBridge5-pin serial data transaction : BIT_CLK, SYNC, RESET,SDATA_IN, SDATA_OUT Audio BusAzaliaAC’97 AUDIO(Azalia) Signals Description AUDIO(Azalia) Signals Description AUDIO(Azalia) Signals Description AUDIO(Azalia) Signals Description AUDIO(Azalia) Signals Description Repair Flow Chart Repair Technique-Visual Inspection1Visual Inspection to check Audio connector, Audio chip & nearby Repair Technique-Check Bios & Jumper setting2-12-2Check Audio setting is enable in the Repair Technique-Measure Audio Voltage3-13-2Use Multi-Meter to measure AUD +5V & 3.3V.P.S. Audio Repair Technique-Measure Audio Clock4-14-2Use Oscilloscope to measure Audio CLK 24.576Mhz (from X’TAL) Repair Technique-Measure Audio signals5Use Multi-Meter to measure other Audio signals’ bias voltage Thank You!
Слайды презентации

Слайд 2 AUDIO

South
Bridge
5-pin serial data transaction :
BIT_CLK, SYNC, RESET,
SDATA_IN,

AUDIOSouthBridge5-pin serial data transaction : BIT_CLK, SYNC, RESET,SDATA_IN, SDATA_OUT

SDATA_OUT


Слайд 3 Audio Bus
Azalia
AC’97

Audio BusAzaliaAC’97

Слайд 4 AUDIO(Azalia) Signals Description


AUDIO(Azalia) Signals Description

Слайд 5 AUDIO(Azalia) Signals Description

AUDIO(Azalia) Signals Description

Слайд 6 AUDIO(Azalia) Signals Description

AUDIO(Azalia) Signals Description

Слайд 7 AUDIO(Azalia) Signals Description

AUDIO(Azalia) Signals Description

Слайд 8 AUDIO(Azalia) Signals Description

AUDIO(Azalia) Signals Description

Слайд 9 Repair Flow Chart

Repair Flow Chart

Слайд 10 Repair Technique-Visual Inspection
1
Visual Inspection to check Audio connector,

Repair Technique-Visual Inspection1Visual Inspection to check Audio connector, Audio chip &

Audio chip & nearby related components are not damaged.


Слайд 11 Repair Technique-Check Bios & Jumper setting
2-1
2-2
Check Audio setting

Repair Technique-Check Bios & Jumper setting2-12-2Check Audio setting is enable in

is enable in the Bios.
Make sure Audio Jumper is

mounted properly.

Слайд 12 Repair Technique-Measure Audio Voltage
3-1
3-2
Use Multi-Meter to measure AUD

Repair Technique-Measure Audio Voltage3-13-2Use Multi-Meter to measure AUD +5V & 3.3V.P.S.

+5V & 3.3V.

P.S. Audio +5V is transferred by small

regulator like 78L05 (+12V to AUD+5V)

Слайд 13 Repair Technique-Measure Audio Clock
4-1
4-2
Use Oscilloscope to measure Audio

Repair Technique-Measure Audio Clock4-14-2Use Oscilloscope to measure Audio CLK 24.576Mhz (from

CLK 24.576Mhz (from X’TAL) or 14.318Mhz (from CLK Generator)


Слайд 14 Repair Technique-Measure Audio signals
5
Use Multi-Meter to measure other

Repair Technique-Measure Audio signals5Use Multi-Meter to measure other Audio signals’ bias

Audio signals’ bias voltage value.
(This method should be

compared with good MB)
If the symptom is still existing please try to change Audio chip.
After change Audio chip the problem is still constant please try to change SB at last.
P.S.
AC97 Audio chip through AC97 link connect to SB.
HA Audio chip through Azalia link connect to SB.

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