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故障现象1:某些频道无图、无声。故障原因:CPU控制电路E2PROM芯片不良。更换E2PROM。故障现象2:图像与A1伴音正常,A2有交替的伴音与噪声。故障原因:ICW02輲訛輦脚无+5V供电电压。重新
Symptom 1: some of the channels without pictures, silent. Fault reason: CPU control circuit E2PROM chip bad. E2PROM replacement. Symptom 2: Image and A1 sound normal, A2 has alternating sound and noise. Reason for the malfunction: ICW02 correct mistake without foot + 5V supply voltage. Re-