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<ServiceMan>
<ManageInfo>
<Ident>
<Category>
</Category>
<Model>SA-HT623EE/SA-HT623GCS/SA-HT623GCU/SA-HT888GCA</Model>
<System>ORDER NO.CHM0408010C3 </System>
<SubSystem>DVD Home Theater Sound System </SubSystem>
<DataType></DataType>
</Ident>
<Status>
<ModuleTitle>s2200000000x</ModuleTitle>
<IssueNo issue=1>
<IssueDate day=10 month=Aug year=2004>
<qa>
<Unverif>
</qa>
<ModelName>
<Name>SA-HT623EE/SA-HT623GCS/SA-HT623GCU/SA-HT888GCA</Name>
<SubModelName></SubModelName>
</ModelName>
<PubType pubtype=ServMan>
<Manufacturer></Manufacturer>
<Originator></Originator>
<Author></Author>
<Authorization>
<Language lang=Eng>
</Status>
</ManageInfo>
<content>
<ServMan>
<References><NoRefs></References>

<Body>
<Descriptive>
<Title>22 Schematic Diagram Notes</Title>
<Para>
<link linkend="ex-top">TOP</link>
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</Para>
<Para><randlist prefix=unorder><item><Para><emphasis>This schematic diagram may be modified at any time with the development of new technology.</emphasis>
</Para>
</item>
</randlist>
</Para>
<Para><emphasis>Notes:</emphasis></Para>
<Para><randlist prefix=unorder><item><Para><emphasis>SW2601:</emphasis>
</Para>
<Para>Open switch.</Para>
</item>
<item><Para><emphasis>SW6701:</emphasis>
</Para>
<Para>Tray open &sol; close switch (<graphic boardno="graphic107" reprowid="7.197mm" reprodep="7.197mm" location="internal"> Open &sol; Close).</Para>
</item>
<item><Para><emphasis>SW6702:</emphasis>
</Para>
<Para>Source select switch (INPUT SELECTOR).</Para>
</item>
<item><Para><emphasis>SW6703:</emphasis>
</Para>
<Para>M. RE-MASTER switch.</Para>
</item>
<item><Para><emphasis>SW6704:</emphasis>
</Para>
<Para>SFC (Sound Field Control) switch.</Para>
</item>
<item><Para><emphasis>SW6705:</emphasis>
</Para>
<Para>Subwoofer level switch.</Para>
</item>
<item><Para><emphasis>SW6706</emphasis>
</Para>
<Para>Surround ON switch.</Para>
</item>
<item><Para><emphasis>SW6707:</emphasis>
</Para>
<Para>DVD&sol;CD F. skip, search and tuning switch (<graphic boardno="graphic110" reprowid="10.245mm" reprodep="7.197mm" location="internal">&sol; <graphic boardno="graphic131" reprowid="10.245mm" reprodep="6.773mm" location="internal">&sol; TUNING <graphic boardno="graphic132" reprowid="6.096mm" reprodep="5.927mm" location="internal">).</Para>
</item>
<item><Para><emphasis>SW6708:</emphasis>
</Para>
<Para>DVD&sol;CD R. skip, search and tuning switch (<graphic boardno="graphic111" reprowid="10.245mm" reprodep="7.197mm" location="internal">&sol; <graphic boardno="graphic133" reprowid="10.245mm" reprodep="6.773mm" location="internal">&sol; TUNING <graphic boardno="graphic134" reprowid="6.096mm" reprodep="5.927mm" location="internal">).</Para>
</item>
<item><Para><emphasis>SW6709:</emphasis>
</Para>
<Para>DVD&sol;CD Play and memory switch (<graphic boardno="graphic108" reprowid="7.197mm" reprodep="7.197mm" location="internal"> Memory).</Para>
</item>
<item><Para><emphasis>SW6710:</emphasis>
</Para>
<Para>DVD&sol;CD Pause and FM mode switch (<graphic boardno="graphic109" reprowid="7.197mm" reprodep="7.197mm" location="internal"> &sol; FM MODE.)</Para>
</item>
<item><Para><emphasis>SW6711:</emphasis>
</Para>
<Para>DVD&sol;CD Stop and Tune mode switch (<graphic boardno="graphic106" reprowid="7.197mm" reprodep="7.197mm" location="internal"> TUNE MODE).</Para>
</item>
<item><Para><emphasis>SW6712:</emphasis>
</Para>
<Para>Standby &sol; on switch (<graphic boardno="graphic135" reprowid="10.245mm" reprodep="7.705mm" location="internal">).</Para>
</item>
<item><Para><emphasis>SW6713:</emphasis>
</Para>
<Para>TAPE Stop switch (<graphic boardno="graphic106" reprowid="7.197mm" reprodep="7.197mm" location="internal">).</Para>
</item>
<item><Para><emphasis>SW6714:</emphasis>
</Para>
<Para>TAPE Play switch (<graphic boardno="graphic116" reprowid="8.636mm" reprodep="6.181mm" location="internal">).</Para>
</item>
<item><Para><emphasis>SW6715:</emphasis>
</Para>
<Para>TAPE Rew switch (REW <graphic boardno="graphic133" reprowid="10.245mm" reprodep="6.773mm" location="internal">).</Para>
</item>
<item><Para><emphasis>SW6716:</emphasis>
</Para>
<Para>TAPE FF switch (FF <graphic boardno="graphic131" reprowid="10.245mm" reprodep="6.773mm" location="internal">).</Para>
</item>
<item><Para><emphasis>SW6717</emphasis>
</Para>
<Para>TAPE Reverse mode switch (REV MODE).</Para>
</item>
<item><Para><emphasis>SW6718</emphasis>
</Para>
<Para>TAPE REC switch (REC <graphic boardno="graphic117" reprowid="9.821mm" reprodep="6.773mm" location="internal">).</Para>
</item>
<item><Para><emphasis>SW6719</emphasis>
</Para>
<Para>TAPE Eject switch (<graphic boardno="graphic107" reprowid="7.197mm" reprodep="7.197mm" location="internal">EJECT).</Para>
</item>
<item><Para><emphasis>VR6701:</emphasis>
</Para>
<Para>Main volume control.</Para>
</item>
<item><Para><emphasis>VR9001:</emphasis>
</Para>
<Para>Mic level control.</Para>
</item>
</randlist>
</Para>
<Para><randlist prefix=unorder><item><Para>Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point, because it may differ from an actual measuring value due to difference of Measuring instrument and its measuring conditionand product itself.</Para>
</item>
<item><Para>Important safety notice:</Para>
<Para>Components identified by <graphic boardno="sftri" location="internal"> mark have special characteristics important for safety.</Para>
<Para>Furthermore, special parts which have purposes of fire-retardant (resistors), high-quality sound (capacitors), low-noise (resistors), etc. are used.</Para>
<Para>When replacing any of components, be sure to use only manufacturer&acute;s specified parts shown in the parts list.</Para>
</item>
<item><Para>The supply part number is described alone in the replacement parts list.</Para>
</item>
<item><Para>Voltage and signal line</Para>
<Para><randlist prefix=unorder><item><Para><graphic boardno="graphic136" reprowid="15.000mm" reprodep="4.000mm" location="internal"></Para>
<Para>: &plus;B Signal line</Para>
</item>
<item><Para><graphic boardno="graphic137" reprowid="11.000mm" reprodep="3.000mm" location="internal"></Para>
<Para>: -B Signal line</Para>
</item>
<item><Para><graphic boardno="graphic138" reprowid="8.975mm" reprodep="4.000mm" location="internal"></Para>
<Para>: CD-DA signal line</Para>
</item>
<item><Para><graphic boardno="graphic139" reprowid="8.975mm" reprodep="4.000mm" location="internal"></Para>
<Para>: Main signal line</Para>
</item>
<item><Para><graphic boardno="graphic140" reprowid="8.975mm" reprodep="4.000mm" location="internal"></Para>
<Para>: DVD (Video) signal line</Para>
</item>
<item><Para><graphic boardno="graphic141" reprowid="8.975mm" reprodep="4.000mm" location="internal"></Para>
<Para>: DVD (Audio) signal line</Para>
</item>
<item><Para><graphic boardno="graphic142" reprowid="9.059mm" reprodep="4.000mm" location="internal"></Para>
<Para>: TAPE play signal line</Para>
</item>
<item><Para><graphic boardno="graphic143" reprowid="9.059mm" reprodep="4.000mm" location="internal"></Para>
<Para>: TAPE REC signal line</Para>
</item>
<item><Para><graphic boardno="graphic144" reprowid="8.975mm" reprodep="4.000mm" location="internal"></Para>
<Para>: FM&sol;AM signal line</Para>
</item>
</randlist>
</Para>
</item>
</randlist>
</Para>
<SafetyPara><Caution><Para><Title>Caution!</Title>
<Para>IC and LSI are sensitive to static electricity.</Para>
<Para>Secondary trouble can be prevented by taking care during repair.</Para>
<Para>Cover the parts boxes made of plastics with aluminum foil.</Para>
<Para>Ground the soldering iron.</Para>
<Para>Put a conductive mat on the work table.</Para>
<Para>Do not touch the legs of IC or LSI with the fingers directly.</Para>
</Para>
</Caution>
</SafetyPara>

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