Toshiba 20VL14, Service Manual

3

 WARNINGS

Take care to heed the following warnings:

KEEP CHILDREN 

AWAY

Always advise users to keep children away.
There is danger of injury to children from tools, disassembled products, etc.

UNPLUG

Always disconnect the power plug before starting work whenever power is not 
required.
Failure to disconnect the power plug before starting work can result in electrical 
shock.

SHOCK HAZARD

Depending on the model, use an insulation transformer or wear gloves when 
servicing with the power on, and disconnect the power plug to avoid electrical 
shock when replacing parts.
In some cases, alternating current is also impressed in the chassis, so electrical 
shock is possible if the chassis is contacted with the power on.

USE SPECIFIED 

PARTS

Always use the replacement parts specified for the particular model when mak-
ing repairs. The parts used in products have the necessary safety characteris-
tics such as inflammability, voltage resistance, etc.; therefore, use only 
replacement parts that have these same characteristics.
Use only the specified parts when the 

 mark is included in a circuit diagram 

or parts list.

CAUTION FOR 

WIRING

Parts mounting and routing of the wiring should be the same as that used origi-
nally.
For safety purposes, insulating materials such as tubing or tape is sometimes 
used and printed circuit boards are sometimes mounted floating.
Also make sure that wiring is routed and clamped to avoid parts that generate 
heat and which use high voltage. Always follow the original scheme.

CAUTION FOR 

ASSEMBLY/WIRING

After a repair has been completed, reassemble all disassembled parts, and 
route and reconnect the wiring, in accordance with the original scheme.
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.

CHECK INSULA-

TION RESISTANCE

After completing the work, disconnect the power plug from the outlet, remove 
the antenna, turn on the power switch. Then, use a 500V insulation resistance 
meter to check the insulation resistance of the antenna terminal, other metallic 
parts and between the prongs of the power plug to make sure that the insula-
tion resistance is 1M 

Ω

 or more. The set will require inspection and repair if the 

insulation resistance is below this value.

PROHIBIT REMOD-

ELLING

Never remodel the product in any way.
Remodelling can result in improper operation, malfunction, or electrical leakage 
and flame,
which may be hazardous 

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2

Unplug

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