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Sony WM-20 High Quality Service Manual
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General Precautions for Repair
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No Operation
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Noise when Battery is Worn out (Less than 0.9 V)
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No Power
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LED Does not Light up
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No Converter Operation
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Converter Board Simple Check Method
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Motor Does not Stop for FF/REW STOP
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No Muting
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No Sound (FWD, but no Sound)
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Low Level
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No Dolby
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Hum Noise During Playback
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Noise on L – CH
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No Motor Rotation
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Motor Coil Check Method
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Fast, Slow Speed
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No Speed Acceleration
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Servo Board (A) (B) Simple Check Method
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Defective Tape Transport I
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Defective Tape Transport II
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Repair Know How
This section of product description has not yet been edited.
This product was added to our catalog on Monday 16 May, 2011.
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