Panasonic NV-HS830EG Service Manual

INDICATION CAUSE REMEDY/CHECK01 After cylinder lock is detected, the cylinderdoes not start rotating again even after tapeunloading.Check the cylinder motor drive circuit.02 Cassette tape is not wound up during the tapeunloading except EJECT mode.Check the capstan motor drive circuit.03 Mechanism locks during mode transitionexcept EJECT mode.1. Check the loading motor drive circuit.2. Check the mechanism phase alignment.3. Check the mode switch.04 Mechanism locks during tape unloading. 1. Check the loading motor drive circuit.2. Check the mechanism phase alignment.06 Mechanism locks after tape unloading inEJECT mode.1. Check the loading motor drive circuit.2. Check the mechanism phase alignment for cassette07 During recording mode, recording signal isless than the normal condition.Protection of the over-current flowingtransistor which produces the powerfor recording mode.08 Recording circuit works except recordingmode.Check the recording circuit.16 Cylinder lock detection. Check the cylinder unit and the cylinderdrive circuit.17 Supply reel mechanism lock detection Check the supply reel mechanism andsupply reel circuit.18 Take-up reel mechanism lock detection Check the Take-up reel mechanism andTake-up reel circuit.2* PG shifter automatic adjustment error. Check the servo/system control circuitcylinder unit.Fig. T1 Self-Test indication Display2.5. CAUTION FOR AC MAINS LEAD (NV-HS830B)3. ADJUSTMENT PROCEDURES3.1. DISASSEMBLY METHOD3.1.1. DISASSEMBLY FLOW CHARTThis flow chart indicates disassembly steps of the cabinet parts and the circuit boards in order tofind the necessary items for servicing.12