3 treatment, 4 static electricity, 5 maintenance – Sharp JW-21MN User Manual

Page 12: 6 allocation of relay number, 3 treatment -3, 4 static electricity -3, 5 maintenance -3, 6 allocation of relay number -3

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2-3

2-3 Treatment

For ventilation, holes are provided in the cabinet to prevent a temperature rise. Do not block the
ventilation holes. Good ventilation is necessary.

Never allow a liquid such as water and chemical solution and a metallic object like a copper wire
inside the JW-21MN to avoid a possible hazard. Otherwise, it may be a cause of machine trouble.

When a trouble or abnormal condition such as overheat, fume, or smoke is met, stop the operation
immediately, and call your dealer or our service department.

2-4 Static electricity

In extremely dry circumstances, the human body may have excessive static current. This excessive
static current may damage parts in the JW-21MN's PC board. Therefore, prior to accessing the JW-
21MN, touch your hand to a grounded piece of metal to discharge the static current in your body.

2-5 Maintenance

Use a clean, dry cloth when cleaning the JW-21MN. Do not use volatile chemicals such as thinner or
alcohol as it may result in deformation and color fading.

2-6 Allocation of relay number

JW20/JW20H/JW30H which installs JW-21MN are laid out 16 points to the JW-21MN as a relay
number. These 16 points are dummy area which is not used in JW-21MN.

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