LC-26LE430E - Sharp TV Service Manual (repair manual). Page 2

LC-19LE430E, LC-22LE430E, LC-26LE430E, LC-32LE430E 

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Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the 

servicing guidelines which follow:

 

 
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 WARNING 

1.  For continued safety, no modification of any circuit should be 

attempted. 

2.  Disconnect AC power before servicing.

 

CAUTION: 
FOR CONTINUED PROTECTION AGAINST A 
RISK OF FIRE REPLACE ONLY WITH SAME 
TYPE FUSE. 
42"         F901 (T6.3AH/250V) 

26"/32"   F901 (T5AH/250V)

 
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 BEFORE RETURNING THE RECEIVER 

 

 

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 non-metallic control knobs, 

insulation materials, cabinet backs, adjustment and compartment 

covers or shields, isolation resistor-capacitor networks, mechanical 

insulators, etc. 

5.  To be sure that no shock hazard exists, check for leakage current in 

the following manner. 

•   Plug the AC cord directly into a 220~240 volt AC outlet. 

•   Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled 

by a 0.15µF capacitor in series with all exposed metal cabinet 

parts and a known earth ground, such as electrical conduit or 

electrical 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. 

•  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 1.05 V peak (this corresponds to 0.7 mA peak AC.) 

or more is excessive and indicates a potential shock hazard which 

must be corrected before returning the monitor to the owner.

 

 
 

DVM 

AC SCALE 

1.5k ohm 

10W 

 
 
 

0.15 µF 

TEST PROBE 

 

TO EXPOSED 

METAL PARTS 

 

 

 

 

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SAFETY NOTICE  

Many electrical and mechanical parts in LCD color television have 

special safety-related characteristics. 

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 “   ”  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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CONNECT TO KNOWN 

EARTH GROUND