Toshiba 32LV67U - 32" LCD TV, Service Manual

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inflammability, voltage resistance, etc. therefore, use only replacement parts that have
these same characteristics. Use only the specified parts when the
mark is indicated
in the circuit diagram or parts list.
7. Parts mounting and routing dressing of wirings should be the same as that used
originally. For safety purposes, insulating materials such as isolation tube or tape are
sometimes used and printed circuit boards are sometimes mounted floating. Also make
sure that wirings is routed and clamped to avoid parts that generate heat and which use
high voltage. Always follow the manufactured wiring routes / dressings.
8. Always ensure that all internal wirings are in accordance before re-assembling the
external casing after a repairing completed. Do not allow internal wiring to be pinched
by cabinets, panels, etc. Any error in reassembly or wiring can result in electrical
leakage, flame, etc., and may be hazardous.
9. NEVER remodel the product in any way. Remodeling can result in improper operation,
malfunction, or electrical leakage and flame, which may be hazardous.
10. Always perform an AC leakage current checking on the exposed metallic parts of the
cabinet such as antennas, terminals, screw heads, metal overlays, control shafts and etc.
to be sure that the set is safe to operate without any dangerous of electrical shocks
before returning the set to the customer.
11. The leakage current checking. (After completing the work, measure the leakage current
to prevent an electrical shock.)
Plug the AC line cord directly into a 120V AC outlet. Do not use an isolation
transformer for this check.
Use an AC voltmeter having 5000 ohms per volt or more sensitivity in the following
manner.
Connect a 1500 ohm 10 watt resistor, paralleled by a 0.15 µF, AC type capacitor,
between a known good earth ground (water pipe, conduit, etc.) and the exposed
metallic parts, one at a time. Measure the AC voltage across the combination of 1500
ohm resistor and 0.15 µF capacitor. Reverse the AC plug at the AC outlet and repeat
AC voltage measurements for each exposed metallic part. Voltage measured must not
exceed 0.3 volts rms. This corresponds to 0.2 milliamp. AC. Any value exceeding this
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