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
4
2
Unplug
H
Содержание 20VL14
Страница 1: ...SERVICE MANUAL FILE NO 050 200415 20VL14 LCD TELEVISION ...
Страница 8: ...8 LAYOUT OF MAJOR BOARDS Main board Inverter board Light receiving board Key control board ...
Страница 9: ...9 MECHANICAL DISASSEMBLY B214 A108 B210 B211 A106 A102 B211 A107 A104 B215 ...
Страница 10: ...10 B208 B205 B204 B209 B207 B214 B210 A101 U003 B212 B203 B202 U004 B209 W601 ...
Страница 11: ...11 U002 B208 A105 B201 U001 B206 B211 U902 E901 ...
Страница 12: ...12 PACKING DISASSEMBLY Accessory Box LCD TV Set Battery Y151 A703 A702 Y101 A701 Y150 K901 ...
Страница 14: ...14 CIRCUIT BOARD DIAGRAMS MAINBOARD 0171 4 ...
Страница 15: ...15 ...
Страница 16: ...16 0171 5 ...
Страница 17: ...17 ...
Страница 18: ...18 KEY CONTROL BOARD LIGHT RECEIVING BOARD ...
Страница 19: ...19 EARPHONE BOARD ...
Страница 42: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...