Roadstar CTV-1015, Service Manual

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Measure the AC voltage across the combination of 1,500 ohm resistor and 0.15uF capacitor.
Reverse the AC plug at the AC outlet and repeat. AC voltage measurements for each
exposed metallic part.
Voltage measured must not exceed 0.75 volts RMS. This corresponds to 0.5 milliamp AC.
Any value exceeding this limit constitutes a potential shock hazard and must be corrected
immediately.
PRODUCT SAFETY NOTICE
Many electrical parts in this chassis have special safety-related characteristics. These
characteristics are often passed unnoticed by a visual inspection and the protection afforded by
them cannot necessarily be obtained by using replacement, rated for higher voltage, wattage,
etc. Replacement parts which have these special safety characteristics are identified in this
manual and its parts list. Before replacing any of these components, read the parts list in this
manual carefully. The use of substitute replacement parts which do not have the same safety
characteristics as specified in the parts list may create shock, fire, x-ray radiation or other
hazards.
1. In the majority of cases, a color television receiver will need only slight touch-up adjustment
upon installation.
Check the basic characteristics such as height, vertical sync, horizontal sync and focus.
Observe the picture for good black and white objectionable color shading. If color shading is
evident, demagnetize the receiver. If color shading still persists, perform purity and
convergence adjustments.
This should be all that is necessary for optimum receiver performance.
2. THIS RECEIVER TRANSISTORIZED AND SPECIAL CARE MUST BE TAKEN. READ THE
FOLLOWING NOTES BEFORE ATTEMPTING ALIGNMENT.
1) Alignment requires an exacting procedure and should be undertaken only when necessary.
2) An isolation transformer must be used to prevent a shock hazard.
3) The test equipment specified or its equivalent is required to perform the alignment properly.
Any use of equipment which does not meet these requirements may result in an improper
alignment.
4) A correct matching of the equipment is essential. A failure to use proper matching will result
in responses which cannot represent the true operation of the receiver.
5) An use of excessive signal from a sweep generator can cause overloading of receiver circuit.
It should be avoided to obtain a true response curve. Insertion of markers from the maker
generator should not cause distortion of the responses.
6) Connect the TV only to an AC power source with voltage and frequency as specified on the
backcover nameplate.
7) Do not attempt to connect or disconnect any wire while the receiver is in operation. Make sure
the power cord is disconnected before replacing any part in the receiver.
AC VOLTMETER
0.15uF
Place this probe
on each exposed
metal part
Good earth ground
such as a water
pipe, conduit etc
1500 ohm
10 watt
DIRECTION FOR GENERAL USE