Service manual

Samsung Electronics 1-1
1. Precautions
1-1 Safeguards
Please read these instructions carefully and completely.
1. Unplug this product from the wall outlet before
you disassemble it.
2. Replace defective parts with the same parts as
them.
3. Check the insulation of electricity-conducting
parts (metal plate or input terminal) that can easi-
ly contact AC plug blades.
4. How to check insulation: Pull the AC plug out of
the outlet and measure insulation resistance of
each blade.
5. Insulation resistance of AC plug blades against
electricity-conducting parts should be 1 megaohm
or over.
6. Always use it after connecting the ground of mea-
suring instruments to the ground of chassis. And
after you use it, separate the ground of the
measuring instruments lastly.
1. Do not use this product in a humid place nor out-
door.
2. Do not place this product on an unstable stand or
table. The product may fall, causing serious dam-
age to the product.
3. Use this product in a well-ventilated place.
4. Slots are provided for ventilation. Never push
objects of any kind into this product through
these slots as they may result in a fire or electric
shock. Never spill liquid of any kind on the prod-
uct.
5. Power-supply cords should be routed so that
they are not likely to be walked.
6. Use this product in a place big enough to support
printers.
7. Install this product within 180cm from the com-
puter and 150cm from the power outlet.
8. This product should be operated only from the
type of power source indicated on the marking
label.
9. If you use extension cords, be sure they have
three-wire grounding-type power outlets. Do not
overload wall outlets and extension cords. Never
load one wall outlet with over 15 ampere.
10. Unplug this product from the wall outlet before
cleaning. Do not use liquid cleaners or aerosol
cleaners. Use a dry cloth for cleaning.
11. Use only standard paper, OHP film, andap-
proved envelopes.
1-2 Servicing Precautions
Please read these instructions carefully and completely.