Samsung AQ18A1QE/B, Service Manual

Page: 2 / 49

1 . Warning: Prior to re p a i r, disconnect the
power cord from the circuit bre a k e r.
2 . Use proper parts: Use only exact re p l a c e-
ment parts. (Also, we recommend re p l a c i n g
parts rather than repairing them.)
3 . Use the proper tools: Use the proper tools
and test equipment, and know how to use
them. Using defective tools or test equip-
ment may cause problems later- i n t e r m i t t e n t
contact, for example.
4 . Power Cord: Prior to re p a i r, check the
power cord and replace it if necessary.
5 . Avoid using an extension cord, and avoid
tapping into a power cord. This practice
may result in malfunction or fire .
6 . After completing repairs and re a s s e m b l y,
check the insulation resistance. Pro c e d u re :
Prior to applying power, measure the re s i s-
tance between the power cord and the
g round terminal. The resistance must be
g reater than 30 megohms.
7 . Make sure that the grounds are adequate.
8 . Make sure that the installation conditions
a re satisfactory. Relocate the unit if neces-
s a r y.
9 . Keep children away from the unit while it is
being re p a i re d .
1 0 . Be sure to clean the unit and its surro u n d-
ing are a .
Samsung Electronics
1-1
1. Precautions
Fig. 1-1 Avoid Dangerous Contact
Fig. 1-2 No Tapping and No Extension Cords
Fig. 1-3 No Kids Nearby!
Fig. 1-4 Clean the Unit