Lenovo S660 Service Manual page 55

RF-4:GSM/WCDMA Trouble shooting
• 接收路徑 Receiving Path
– 檢查 Antenna switch Module邏輯控制電壓
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Check Antenna switch module logical control voltage
– 使用示波器量測 圖所標腳位的電壓是否符合右 列表
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Use oscilloscope test below pins voltage if they match the right bottom table
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