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Asus repair. Audio. (Lesson 3) презентация
Содержание
- 1. Asus repair. Audio. (Lesson 3)
- 2. AUDIO South Bridge 5-pin serial data transaction : BIT_CLK, SYNC, RESET, SDATA_IN, SDATA_OUT
- 3. Audio Bus Azalia AC’97
- 4. AUDIO(Azalia) Signals Description
- 5. AUDIO(Azalia) Signals Description
- 6. AUDIO(Azalia) Signals Description
- 7. AUDIO(Azalia) Signals Description
- 8. AUDIO(Azalia) Signals Description
- 9. Repair Flow Chart
- 10. Repair Technique-Visual Inspection 1 Visual Inspection to
- 11. Repair Technique-Check Bios & Jumper setting 2-1
- 12. Repair Technique-Measure Audio Voltage 3-1 3-2 Use
- 13. Repair Technique-Measure Audio Clock 4-1 4-2 Use
- 14. Repair Technique-Measure Audio signals 5 Use Multi-Meter
- 15. Thank You!
AUDIO South Bridge 5-pin serial data transaction : BIT_CLK, SYNC, RESET, SDATA_IN, SDATA_OUT
Слайд 10Repair Technique-Visual Inspection
1
Visual Inspection to check Audio connector, Audio chip &
nearby related components are not damaged.
Слайд 11Repair Technique-Check Bios & Jumper setting
2-1
2-2
Check Audio setting is enable in
the Bios.
Make sure Audio Jumper is mounted properly.
Слайд 12Repair Technique-Measure Audio Voltage
3-1
3-2
Use Multi-Meter to measure AUD +5V & 3.3V.
P.S.
Audio +5V is transferred by small regulator like 78L05 (+12V to AUD+5V)
Слайд 13Repair Technique-Measure Audio Clock
4-1
4-2
Use Oscilloscope to measure Audio CLK 24.576Mhz (from
X’TAL) or 14.318Mhz (from CLK Generator)
Слайд 14Repair Technique-Measure Audio signals
5
Use Multi-Meter to measure other 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.
(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.
