1-2 IMPORTANT SAFETY PRECAUTIONS
1-2-1 Product Safety NoticeI. Also check areas surrounding repaired locations.
J. Be careful that foreign objects (screws, solder
Some electrical and mechanical parts have specialdroplets, etc.) do not remain inside the set.
safety-related characteristics which are often not evi-K. Crimp type wire connector
dent from visual inspection, nor can the protectionThe power transformer uses crimp type connectors
they give necessarily be obtained by replacing them
with components rated for higher voltage, wattage,which connect the power cord and the primary side
etc. Parts that have special safety characteristics areof the transformer. When replacing the transformer,
identified by a ! on schematics and in parts lists. Usefollow these steps carefully and precisely to pre-
of a substitute replacement that does not have thevent shock hazards.
same safety characteristics as the recommendedReplacement procedure
replacement part might create shock, fire, and/or other1)Remove the old connector by cutting the wires at a
hazards. The Product?s Safety is under review contin-point close to the connector.
uously and new instructions are issued wheneverImportant: Do not re-use a connector. (Discard it.)
appropriate. Prior to shipment from the factory, our
products are carefully inspected to confirm with the2)Strip about 15 mm of the insulation from the ends
recognized product safety and electrical codes of theof the wires. If the wires are stranded, twist the
countries in which they are to be sold. However, instrands to avoid frayed conductors.
order to maintain such compliance, it is equally impor-3)Align the lengths of the wires to be connected.
tant to implement the following precautions when a setInsert the wires fully into the connector.
is being serviced.4)Use a crimping tool to crimp the metal sleeve at its
center. Be sure to crimp fully to the complete clo-
1-2-2 Precautions during Servicingsure of the tool.
L. When connecting or disconnecting the internal con-
A. Parts identified by the ! symbol are critical fornectors, first, disconnect the AC plug from the AC
safety. Replace only with part number specified.outlet.
B. In addition to safety, other parts and assemblies
are specified for conformance with regulations
applying to spurious radiation. These must also be
replaced only with specified replacements.
Examples: RF converters, RF cables, noise block-
ing capacitors, and noise blocking filters, etc.
C. Use specified internal wiring. Note especially:
1)Wires covered with PVC tubing
2)Double insulated wires
3)High voltage leads
D. Use specified insulating materials for hazardous
live parts. Note especially:
1)Insulation tape
2)PVC tubing
3)Spacers
4)Insulators for transistors
E. When replacing AC primary side components
(transformers, power cord, etc.), wrap ends of
wires securely about the terminals before solder-
ing.
F. Observe that the wires do not contact heat produc-
ing parts (heatsinks, oxide metal film resistors, fus-
ible resistors, etc.).
G. Check that replaced wires do not contact sharp
edges or pointed parts.
H. When a power cord has been replaced, check that
5 - 6 kg of force in any direction will not loosen it.
1-2 |
ACEC
