Слайд 12
Repair 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 13
Repair 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 14
Repair 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.