Janome MB-4 User Manual download pdf (Page 85)

Problem

The fabric puckers.

The LCD screen is not clear.

The touch panel keys do not

work correctly.

The PC card or USB

memory does not work.

Communication with the PC

does not work.

The thread barkage warning

appears though the thread

is not broken.

Cause

1. The needle thread tension is too tight.

2. The fabric is not stretched tight enough in the

hoop.

3. A stabilizer is not used.

1. The brightness of the LCD screen is not

adjusted properly.

1. The key position is out of alignment.

2. The control system does not work correctly.

1. The PC card or USB memory is not inserted

properly.

2. The memory bank of teh PC card or USB

memory is damaged.

1. The USB cable is not connected properly.

2. The existing machine ID number is used.

1. The thread detector sensitivity is too sensitive.

Reference

See pages 30.

See page 22.

See page 15.

See pages 24, 61.

See page 62.

Turn the power off and

turn it on again.

See pages 73, 74.

See pages 58, 64.

See page 14.

See pages 57, 63.

See pages 59, 68.

Troubleshooting

NOTE:

It is not abnormal that a slight humming sound is comming

from the internal motors when the machine stands still.

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Janome MB-4 User Manual Page 85

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