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Asus H61M-E repeatedly restarts and repairs common problems
ASUS H61M-E restarted repeatedly, replaced the conversion tube PQ22, the fault remained, replaced the pull-up resistor, and the fault was repaired.
Machine model: ASUS H61M-E
Symptom: Repeated restart
Maintenance process: the voltage of 1.8V is high, the measured voltage is 3.3V, and the conversion tube PQ22 is replaced, which is still the same.
Measure that the control voltage of level G is 5.8V high, 4.2V normal. Connect 8 pins of 324 comparator at level G of PQ22. Measure that the voltage of pin 10 is 3.3V high, 1.8V normal. The voltage of pin 10 is 3.3V, which is obtained by dividing the voltage between two resistors. Measure that the resistance of the pull-up resistance is 5K, 10K normal. Replace the pull-up resistance. The voltage of pin 10 of 324 comparator returns to 1.8V. Measure PQ22, and the output voltage is 1.8V normal.
Asus H61M-E repeatedly restarts and repairs common problems Figure 1.
Asus H61M-E repeatedly restarts and repairs common problems Figure 2.
