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Samsung SC-148B Service Manual
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Contents |
21No laser onRefer to ‘No tray open/close’IC101 10pin changes from 0V to +3.3V? Refer to ‘Check power source and initial state’NNIC101 9pin changes from 4.2V to 3.6V? Check IC101 power input and replace.YOpen and close tray(Disc insettion)YCN501 3pin changes from 2V to 2.5V? Check D101, L101, Q102, R102, C103 solderingYCN501 2pin changes from 0V to 0.7V? Check Pick-up FPC connection stateNNNYReplace pick-upY |
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