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<svctechdoc lang="english" type="svc" xmlns:html="http://www.w3.org/Profiles/XHTML-transitional">
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<other>
<ttl><html:a name="TITLE8">8 DVD&#47;CD Changer Mechanism Unit</html:a>
</ttl>
<ti2 column="3">
<ttl><html:a name="TITLE8_1">8.1 CRS1D Mechanism Overview</html:a>
</ttl>
<fig>
<graphic loc="graphic24" sizex="136.144mm" sizey="103.886mm"><html:img src="v9view1.png" border="0"></html:img>
</graphic>
</fig>
<fig>
<graphic loc="graphic25" sizex="140.716mm" sizey="129.540mm"><html:img src="v9view2.png" border="0"></html:img>
</graphic>
</fig>
<ti3 module="0">
<ttl><html:a name="TITLE8_1_1">8.1.1 General Feature</html:a>
</ttl>
<ul>
<li>
<p>This is a five disc changer mechanism for CD&#47;DVD. The outline figure is shown below.
</p>
</li>
</ul>
<fig>
<graphic loc="graphic26" sizex="143.934mm" sizey="72.814mm"><html:img src="v9cm_1.png" border="0"></html:img>
</graphic>
</fig>
<ul>
<li>
<p> The mechanism has 
<emp>"CHANGE WHILE PLAY"
</emp> function. It open other trays for disc exchanging while one tray is at PLAY position performing recording or reproducing. 
</p>
</li>
<li>
<p>The mechanism can quickly change all trays with 
<emp>"CHANGE ALL"
</emp> function. All trays can be move to OPEN position with one operation.
</p>
</li>
<li>
<p>There is no sensor to indicate presence of disc on any tray.
</p>
</li>
</ul>
</ti3>
<ti3 module="0">
<ttl><html:a name="TITLE8_1_2">8.1.2 Hardware Composition</html:a>
</ttl>
<ul>
<li>
<p> Below is the hardware components of the mechanism
</p>
<table frame="all" colsep="1" rowsep="1"><html:table frame="all" rules="all" >
<tgroup cols="2" colsep="1" rowsep="1">
<colspec colnum="1" colname="1" colwidth="1.821in">
</colspec>
<colspec colnum="2" colname="2" colwidth="5.251in">
</colspec>
<thead>
<row rowsep="1"><html:tr>
<entry colname="1" align="center"><html:td valign="top" align="center" colspan="1" rowspan="1">
<p>
<emp>Name
</emp>
</p>
</html:td></entry>
<entry colname="2" align="center"><html:td valign="top" align="center" colspan="1" rowspan="1">
<p>
<emp>Function
</emp>
</p>
</html:td></entry>
</html:tr></row>
</thead>
<tbody>
<row rowsep="1"><html:tr>
<entry colname="1" morerows="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="2">
<p>Open Switch (OPEN-SW)
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>The switch is used to detect  normal tray opening
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>The switch is used for detect tray being manually push&#47;trigger when full open
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Home Switch (HOME-SW)
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Is used to detect cam gear home position
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" morerows="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="2">
<p>Close Sensor (CLOSE-SENSOR)
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Used for normal single tray closing
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Used to detect cam gear rotate to Play Driving position
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Play Switch (PLAY-SW)
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Detect TRV clamping complete position
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Stocking Switch (STOCK-SW)
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Detect tray completely transfer for play position to stocking position
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>UD Sensor (UD-SENSOR)
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Detect TRV vertical movement position
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Top Switch (TOP-SW)
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Detect a default position of TRV vertical movement position
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Driver IC
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>To drive Motor
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Motor
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Main driving source for changer
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="0"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Plunger
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Switching the driving source from motor to:
</p>
<ol>
<li>
<p>Tray open&#47;close
</p>
</li>
<li>
<p> Drive tray to play&#47;stock position and TRV vertical movement
</p>
</li>
</ol>
</html:td></entry>
</html:tr></row>
</tbody>
</tgroup>
</html:table></table>
</li>
</ul>
</ti3>
<ti3 module="0">
<ttl><html:a name="TITLE8_1_3">8.1.3 Mechanism Operation</html:a>
</ttl>
<ul>
<li>
<p> This mechanism has the following state:
</p>
<ol>
<li>
<p>Driving of a tray to open&#47;close
</p>
</li>
<li>
<p>Up&#47;down operation of a traverse performs a state changes of tray.
</p>
</li>
</ol>
<p>By using the plunger to lift&#47;release of a switching gear, and the cam gear to lift&#47;release the function gear the motor can be link to several gear trains to perform various operations.
</p>
</li>
<li>
<p>The functions that can be perform in this mechanism are described as below:
</p>
<table frame="all" colsep="1" rowsep="1"><html:table frame="all" rules="all" >
<tgroup cols="2" colsep="1" rowsep="1">
<colspec colnum="1" colname="1" colwidth="1.842in">
</colspec>
<colspec colnum="2" colname="2" colwidth="5.215in">
</colspec>
<thead>
<row rowsep="1"><html:tr>
<entry colname="1" align="center"><html:td valign="top" align="center" colspan="1" rowspan="1">
<p>
<emp>Condition
</emp>
</p>
</html:td></entry>
<entry colname="2" align="center"><html:td valign="top" align="center" colspan="1" rowspan="1">
<p>
<emp>Explanation
</emp>
</p>
</html:td></entry>
</html:tr></row>
</thead>
<tbody>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Open current playing tray
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>The state to change current playing disc. All tray will be open at once and current tray at PLAY position will be expose.
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Open All
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>The state where all trays being driven to OPEN position. The disc can be taken in or out from tray to tray by close tray one by one from top to bottom. 
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Stock
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>The state where the trays are stored in STOCK position
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Play
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>The state where one of the tray 5 trays is being driven to PLAY position and clamped by traverse unit
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Play &#38; Open Tray-&#42;
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>The state where one of the tray is in playing position performing recording or reproducing, other trays can be used (OPEN position) for disc exchanging without stopping the recording or reproducing process.
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="1"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Change
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>The state when one of the opened tray being driven from OPEN position to STOCK position and other opened trays remain still at OPEN position.
</p>
</html:td></entry>
</html:tr></row>
<row rowsep="0"><html:tr>
<entry colname="1" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>Close All
</p>
</html:td></entry>
<entry colname="2" align="justify"><html:td valign="top" align="justify" colspan="1" rowspan="1">
<p>The state where all open trays will being driven from OPEN position to STOCK position, one by one from top to bottom
</p>
</html:td></entry>
</html:tr></row>
</tbody>
</tgroup>
<desc>
<p>
<emp>Note: 
</emp> &#42; represent tray number (from 1 ~ 5) 
</p>
</desc>
</html:table></table>
</li>
</ul>
</ti3>
<ti3 module="0">
<ttl><html:a name="TITLE8_1_4">8.1.4 DVD&#47;CD Changer Mechanism Unit (CRS1D) Information</html:a>
</ttl>
<p>
<emp>Note:
</emp>
</p>
<p>This service manual does not contain the following information for the mentioned DVD&#47;CD changer mechanism unit:
</p>
<ul>
<li>
<p>Schematic Diagram, Block Diagram and P.C.B. layout of CD&#47;DVD Loading P.C.B.
</p>
</li>
<li>
<p>Part List for individual parts of the mechanism.
</p>
</li>
<li>
<p>Exploded View and Parts List for individual parts of the DVD&#47;CD changer mechanism unit.
</p>
</li>
</ul>
</ti3>
</ti2>
</other>
</html:body>
</svctechdoc>
