Analysis of this kind of failure, is a component in a heated performance degradation caused by. By touching the touch signal input on foot, when touching IC10128 feet, "kaka" sound and disappear the speaker, to show that the fault between Q2105 IC10128 feet. Considering the failure rate is low, resistance using instead of replacing C2121, C2129, after the replacement of C2121 fault elimination.YPCservice manual download site
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