SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRECAUTION
[] Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow:
==WARNING
1.For continued safety, no modification of any circuit should be attempted.
2.Disconnect AC power before servicing.
Using two clip leads, connect a 1.5k ohm, 10 watt resistor paral- leled by a 0.15f_F capacitor in series with all exposed metal cabinet parts and a known earth ground, such as electrical conduit or elec- trical ground connected to an earth ground.
Use an AC voltmeter having with 5000 ohm per volt, or higher, sen- sitivity or measure the AC voltage drop across the resistor.
CAUTION: FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE,
F7000 (250V 5A)
F7001 (250V 5A)
Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor.
All checks must be repeated with the AC cord plug connection reversed. (If necessary, a nonpolarized adaptor plug must be used only for the purpose of completing these checks.)
Any reading of 0.75 Vrms (this corresponds to 0.5 mA rms AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the monitor to the owner.
==BEFORE RETURNING THE RECEIVER (Fire &
Shock Hazard)
I | oooo I |
/ DVM /
Before | returning the receiver to the user, perform the following | rt.o | ACSCALE | |
safety | checks: | / | 1.5k ohm | |
|
|
3.Inspect all lead dress to make certain that leads are not pinched, and check that hardware is not lodged between the chassis and other metal parts in the receiver.
4.Inspect all protective devices such as
5.To be sure that no shock hazard exists, check for leakage current in the following manner.
Plug the AC cord directly into a 120 volt AC outlet.
| EOT15RbFBE |
TO EXPOSED | CONNECT TO |
METAL PARTS | KNOWN EARTH |
| GROUND |
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SAFETY NOTICE
Many electrical and mechanical parts in LCD color television have special
These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarily increased by using replacement components rated for higher voltage, wattage, etc.
Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features
are identified by "/i',," and shaded areas in the Replacement Parts List
and Schematic Diagrams.
For continued protection, replacement parts must be identical to those used in the original circuit.
The use of a substitute replacement parts which do not have the same safety characteristics as the factory recommended replacement parts shown in this service manual, may create shock, fire or other hazards.
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