5
with a meter to be certain that the high voltage does not
exceed the specified value and that it is regulating
correctly. We suggest that you and your service
orgainzation review test procedures so that voltage
regulation is always checked as a standard servicing
procedure. And that the high voltage reading be recorded
on each customer s invoice.
5. When troubleshooting and making test measurements
in a receiver with a problem of excessive high voltage,
avoid being unnecessarily close to the picture tobe and
the high voltage compartment.
Do not operate the chassis longer than is necessary to
locate the cause of excessive voltage.
6. Refer to HV, B+and Shutdown adjustment procedures
described in the appropriate schematic and
diagrams(where used).
SUBJECT : IMPLOSION
1. All direct viewed picture tubes are equipped with an
integral implosion protection system, but care should be
taken to avoid damage during installation. Avoid
scratching the tube. If scratched, replace it.
2. Use only recommended factory replacement tubes.
SUBJECT : TIPS ON PROPER
INSTALLATION
1. Never install any receiver in closed-in recess,
cubbyhole or closely fitting shelf space over, or close to
heat duct, or in the path of heated air flow.
2. Avoid conditions of high humidity such as : Outdoor
patio installations where dew is a factor. Near steam
radiators where steam leakage is a factor, etc.
3. Avoid placement where draperies may obstruct rear
venting. The customer should also avoid the use of
decorative scarves or other coverings which might
obstruct ventilation.
4. Wall and shelf mounted installations using a
commercial mounting kit, must follow the factory
approved mounting instructions. A receiver mounted to
a shelf or platform must retain its original feet(or the
equivalent thickness in spacers) to provide adequate
are flow across the bottom, blots or screws used for
fasteners must not touch and parts or wiring. Perform
leakage test on customized installations.
5. Caution customers against the mounting of a receiver
on sloping shelf or a tilted position, unless the receiver
is properly secured.
6. A receiver on a roll-about cart should be stable on its
mounting to the cart. Caution the customer on the
hazards of trying to roll a cart with small casters across
thresholds or deep pile carpets.
7. Caution customers against the use of a cart or stand
which has not been listed by underwriters laboratories,
inc. For use with their specific model of television
receiver or generically approved for use with T.V. s of
the same or larger screen size.
