Sylvania 6319CCB, Service Manual, Page: 8 / 108

Precautions during Servicing
A.
Parts identified by the (
#
) symbol are critical for
safety.
Replace only with part number specified.
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 soldering.
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
edged 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.
I. Also check areas surrounding repaired locations.
J. Use care that foreign objects (screws, solder drop-
lets. etc.) do not remain inside the set.
K. Crimp type wire connector
When replacing the power transformer in sets where
the connections between the power cord and power
transformer primary lead wires are performed using
crimp type connectors, in order to prevent shock
hazards, perform carefully and precisely the follow-
ing steps.
Replacement procedure
1) Remove the old connector by cutting the wires at a
point close to the connector.
Important: Do not re-use a connector (discard it).
2) Strip about 15 mm of the insulation from the ends of
the wires. If the wires are stranded, twist the strands
to avoid frayed conductors.
3) Align the lengths of the wires to be connected. Insert
the wires fully into the connector.
4) Use the crimping tool to crimp the metal sleeve at
the center position. Be sure to crimp fully to the
complete closure of the tool.
L.
When connecting or disconnecting the VCR con-
nectors, first, disconnect the AC plug from AC supply
socket.
FNI 1-2-3 SFTY_2