Panasonic NV-MV20EG Service Manual page 28

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07 During recording mode, recording
signal is less than the normal
condition.
08 Recording circuit works except
recording mode.
16 Cylinder lock detection.
17 Supply reel mechanism lock
detection
18 Take-up reel mechanism lock
detection
2* PG shifter automatic adjustment
error.
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Protection of the over-current flowing in transistor which produces the
power supply for recording mode.
Check the recording circuit.
Check the cylinder unit and the cylinder motor drive circuit.
Check the supply reel mechanism and the supply reel circuit.
Check the Take-up reel mechanism and the Take-up reel circuit.
Check the servo/system control circuit and the cylinder unit.
Fig. T1 Self-Test indication Display