JBL Soundgear Series Service Manual
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-13-FERISTAT(SENSE)CStart modeDoes FE1 signal appear? IC 801 pinDoes FZC signal (focus zero cross signal)appear at pin of IC 801, ISTAT (SENSE)terminal?Does SMON signal appearat pin of IC 802?Does SMPO signal appearat pin of IC 802?Is drive voltage applied to disk motor?Defective IC 801.Open pick diodeDefective IC 801.Defective Pattern between IC 801 andIC 802.Defective IC 801, 803 and/orperipheral circuit.Defective disk motor and/or insulation.(Focus servo turnsON by FZC signalof FOK mod.)NONONONOYESYESYESYESYES59317375 |
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