<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet href="mb508.css" type="text/css"?>
<jvcsm CNN="2,0,1" PMO="S,1,P" xmlns:HTML="http://www.w3.org/1999/xhtml">
<CVR>
<PCTGR>COMPACT COMPONENT SYSTEM</PCTGR>
<MNO>No.MB508</MNO>
<ISSUEY>2006/06</ISSUEY>
<ISSUEM>6</ISSUEM>
<MNAME>MX-C55J,MX-C55C</MNAME>
</CVR>
<TEXT><TI1 CNN="2,0,1" PMO="S,1,P"><HTML:a name="TITLE0"></HTML:a>
<TTL ID="W1107368">1 <HTML:a name="W1107368"></HTML:a>PRECAUTION</TTL>
<TI2 CNN="2,0,0" PMO="S,1,P"><HTML:a name="TITLE0-0"></HTML:a>
<TTL ID="W1107626">1.1 <HTML:a name="W1107626"></HTML:a>Safety Precautions</TTL>
<OL CNN="1,0,0"><LI><P CNN="1,0,0">This design of this product contains special hardware and many circuits and components specially for safety  purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer.
Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.</P></LI>
<LI><P CNN="1,0,0">Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture
of responsibility for personal injury or property damage resulting therefrom.</P></LI>
<LI><P CNN="1,0,0">Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement
components rated for higher voltage, wattage, etc. Replacement parts which  have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics
and by ( <!-- GRAPHIC LOC="graphic1" SIZEX="2.963MM" SIZEY="2.625MM" GRATB="6.0" IMPSIZE="2.963MM 2.625MM" GP="I" / -->
<HTML:img src="kigo001.png" width="9" height="8"/>
 ) on the
Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards.</P></LI>
<LI><P CNN="1,0,0">The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard.
When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassembling.</P></LI>
<LI><P CNN="1,0,0">Leakage shock hazard testing<BR></BR>After reassembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure
the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check.</P>
<UL CNN="1,0,0"><LI><P CNN="1,0,0">Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage  current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a
known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).</P></LI>
<LI><P CNN="1,0,0">Alternate check method<BR></BR>
Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000&#x2126; per volt or more sensitivity in the following manner. Connect a 1,500&#x2126; 10W resistor paralleled by a 0.15µF
AC-type capacitor between an exposed metal part and a known good earth ground.<BR></BR>
Measure the AC voltage across the resistor with the AC voltmeter. <BR></BR>Move the resistor connection to each exposed metal part, particularly any exposed metal part having
a return  path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to  0.5 mA AC (r.m.s.). </P>
<FIG CNN="1,0,0" TYPE="INT" OE="PORT"><!-- GRAPHIC LOC="graphic2" SIZEX="69.850MM" SIZEY="44.097MM" GRATT="6.0" IMPSIZE="69.850MM 44.097MM" GP="L" / -->
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<HTML:img src="LXM-SA008-001_01.png" class="existsvg"/><!--  width="222" height="140" -->
</FIG></LI></UL></LI></OL></TI2>
<TI2 CNN="1,0,0" PMO="S,1,P"><HTML:a name="TITLE0-1"></HTML:a>
<TTL ID="W1108636">1.2 <HTML:a name="W1108636"></HTML:a>Warning</TTL>
<OL CNN="1,0,0"><LI><P CNN="1,0,0">This equipment has been designed and manufactured to meet international safety standards.</P></LI>
<LI><P CNN="1,0,0">It is the legal responsibility of the repairer to ensure that these safety standards are maintained.</P></LI>
<LI><P CNN="1,0,0">Repairs must be made in accordance with the relevant safety standards.</P></LI>
<LI><P CNN="1,0,0">It is essential that safety critical components are replaced by approved parts.</P></LI>
<LI><P CNN="1,0,0">If mains voltage selector is provided, check setting for local voltage.</P></LI></OL></TI2>
<TI2 CNN="1,0,0" PMO="S,1,P"><HTML:a name="TITLE0-2"></HTML:a>
<TTL ID="W1108973">1.3 <HTML:a name="W1108973"></HTML:a>Caution</TTL>
<P CNN="1,0,0"><EMP>Burrs formed during molding may be left over on some parts of the chassis. <BR></BR>Therefore, pay attention to such burrs in the case of preforming repair of this system.</EMP></P></TI2>
<TI2 CNN="1,0,0" PMO="S,1,P"><HTML:a name="TITLE0-3"></HTML:a>
<TTL ID="W1109530">1.4 <HTML:a name="W1109530"></HTML:a>Critical parts for safety</TTL>
<P CNN="1,0,0">In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( <!-- GRAPHIC LOC="graphic3" SIZEX="4.995MM" SIZEY="1.524MM" GRATB="6.0" IMPSIZE="4.995MM 1.524MM" GP="I" / -->
<HTML:img src="kigo026.png" width="16" height="5"/>
 ), diode ( <!-- GRAPHIC LOC="graphic4" SIZEX="4.149MM" SIZEY="3.048MM" GRATB="6.0" IMPSIZE="4.149MM 3.048MM" GP="I" / -->
<HTML:img src="kigo027.png" width="12" height="9"/>
 ) and ICP ( <!-- GRAPHIC LOC="graphic5" SIZEX="3.725MM" SIZEY="3.217MM" GRATB="6.0" IMPSIZE="3.725MM 3.217MM" GP="I" / -->
<HTML:img src="kigo028.png" width="11" height="10"/>
 ) or identified by the " <!-- GRAPHIC LOC="graphic1" SIZEX="2.963MM" SIZEY="2.625MM" GRATB="6.0" IMPSIZE="2.963MM 2.625MM" GP="I" / -->
<HTML:img src="kigo001.png" width="9" height="8"/>
 " mark nearby are critical for safety.  When replacing them, be sure to use
the parts of the same type and rating as specified by the manufacturer. <BR></BR>(This regulation dose not Except the J and C version)</P></TI2>
<TI2 CNN="2,0,1" PMO="S,1,P"><HTML:a name="TITLE0-4"></HTML:a>
<TTL>1.5 Important for laser products</TTL>
<FIG CNN="2,0,0" TYPE="INT" OE="PORT"><!-- GRAPHIC LOC="graphic6" SIZEX="178.859MM" SIZEY="176.389MM" GRATT="6" GT="2.117MM" GL="2.117MM" IMPSIZE="174.625MM 172.156MM" GP="L" / -->
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<HTML:img src="mb508_1003.png" class="existsvg"/><!--  width="571" height="563" -->
</FIG></TI2></TI1></TEXT>
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