https://wiki.w9cr.net/index.php?action=history&feed=atom&title=Product_Support_Bulletin_822 Product Support Bulletin 822 - Revision history 2026-05-28T04:41:00Z Revision history for this page on the wiki MediaWiki 1.34.4 https://wiki.w9cr.net/index.php?title=Product_Support_Bulletin_822&diff=4188&oldid=prev Bryan: Created page with "Category:Quantar Service Bulletin <html> <TABLE BORDER="0" WIDTH="600" CELLSPACING="0" CELLPADDING="0"> <TR> <TD ALIGN="LEFT"> <p><font size="2" face="H..." 2019-03-28T10:21:41Z <p>Created page with &quot;<a href="/index.php/Category:Quantar_Service_Bulletin" title="Category:Quantar Service Bulletin">Category:Quantar Service Bulletin</a> &lt;html&gt; &lt;TABLE BORDER=&quot;0&quot; WIDTH=&quot;600&quot; CELLSPACING=&quot;0&quot; CELLPADDING=&quot;0&quot;&gt; &lt;TR&gt; &lt;TD ALIGN=&quot;LEFT&quot;&gt; &lt;p&gt;&lt;font size=&quot;2&quot; face=&quot;H...&quot;</p> <p><b>New page</b></p><div>[[Category:Quantar Service Bulletin]]<br /> <br /> &lt;html&gt;<br /> &lt;TABLE BORDER=&quot;0&quot; WIDTH=&quot;600&quot; CELLSPACING=&quot;0&quot; CELLPADDING=&quot;0&quot;&gt;<br /> &lt;TR&gt;<br /> &lt;TD ALIGN=&quot;LEFT&quot;&gt;<br /> &lt;p&gt;&lt;font size=&quot;2&quot; face=&quot;Helvetica,Arial&quot;&gt;&lt;b&gt;LAND MOBILE PRODUCT<br /> SECTOR PSB # 822&lt;br&gt;<br /> 1301 E. ALGONQUIN RD. APC # 509&lt;br&gt;<br /> SCHAUMBURG, IL. 60196 DATE: OCTOBER, 97&lt;br&gt;<br /> (847) 576-0180 EXPIRES : 11/30/98&lt;/b&gt;&lt;/font&gt;&lt;/p&gt;<br /> <br /> &lt;p&gt;&amp;nbsp;&lt;/p&gt;<br /> <br /> &lt;p&gt;&lt;font size=&quot;2&quot; face=&quot;Helvetica,Arial&quot;&gt;&lt;b&gt;&lt;u&gt;SUBJECT:&lt;/u&gt;&lt;/b&gt; QUANTAR<br /> STATIONS WITH INTERMITTENT RECEIVER AND /OR EXCITER L01 LOCK<br /> ALARMS&lt;/font&gt;&lt;/p&gt;<br /> <br /> &lt;p&gt;&lt;font size=&quot;2&quot; face=&quot;Helvetica,Arial&quot;&gt;&lt;b&gt;&lt;u&gt;MODELS AFFECTED&lt;/u&gt;&lt;/b&gt;&lt;b&gt;<br /> : &lt;/b&gt;T5365A&lt;/font&gt;&lt;/p&gt;<br /> <br /> &lt;p&gt;&lt;font size=&quot;2&quot; face=&quot;Helvetica,Arial&quot;&gt;&lt;b&gt;&lt;u&gt;MODULES AFFECTED: &lt;/u&gt;&lt;/b&gt;TRF6551G<br /> (RECEIVERS), AND TLF6920E/F (EXCITERS)&lt;/font&gt;&lt;/p&gt;<br /> <br /> &lt;p&gt;&lt;font size=&quot;2&quot; face=&quot;Helvetica,Arial&quot;&gt;&lt;b&gt;&lt;u&gt;SYSTEMS AFFECTED&lt;/u&gt;&lt;/b&gt;&lt;b&gt;<br /> : &lt;/b&gt;CONVENTIONAL AND TRUNKING&lt;/font&gt;&lt;/p&gt;<br /> <br /> &lt;p&gt;&lt;font size=&quot;2&quot; face=&quot;Helvetica,Arial&quot;&gt;&lt;b&gt;&lt;u&gt;SYMPTOMS: &lt;/u&gt;&lt;/b&gt;THE<br /> RECEIVER AND/OR TRANSMITTER WILL INTERMITTENTLY BE INOPERABLE. NO<br /> RECEIVER AUDIO WILL BE GATED, AND THE TRANSMITTER WILL NOT KEY (<br /> OR WILL DEKEY IF ALREADY KEYED). THE RX FAIL LED AND/OR THE TX<br /> LOCK LED WILL FLASH INDICATING AN OUT OF LOCK CONDITION WITH THE<br /> RECEIVER OR EXCITER VCO. THE DIAGNOSTIC ALARM LOG WILL INDICATE<br /> RX-LOCK-FAIL AND/OR TX-LOCK-ALARM.&lt;/font&gt;&lt;/p&gt;<br /> <br /> &lt;blockquote&gt;<br /> &lt;blockquote&gt;<br /> &lt;p&gt;&lt;font size=&quot;2&quot; face=&quot;Helvetica,Arial&quot;&gt;&lt;b&gt;&lt;u&gt;CAUSE:&lt;/u&gt;&lt;/b&gt;&lt;b&gt;<br /> &lt;/b&gt;Contaminant at the interface between the vibration<br /> pad and the bottom of the receiver or exciter PC<br /> boardcauses growth of a leakage path on the VCO steering<br /> line, which can cause the out-of-lock detector to be<br /> activated. High humidity contributes to the problem but<br /> is not the sole cause.&lt;/font&gt;&lt;/p&gt;<br /> &lt;/blockquote&gt;<br /> &lt;/blockquote&gt;<br /> <br /> &lt;p&gt;&lt;font size=&quot;2&quot; face=&quot;Helvetica,Arial&quot;&gt;&lt;b&gt;&lt;u&gt;SOLUTION&lt;/u&gt;&lt;/b&gt;&lt;b&gt;<br /> : &lt;/b&gt;Replace vibration pad Motorola part # 7585064U01 with<br /> Motorola part # 7585064U02, which has cutouts in the area which<br /> causes the contact problems. Only stations experiencing the<br /> diagnostic out-of-lock errors need to have this service<br /> performed.&lt;/font&gt;&lt;/p&gt;<br /> <br /> &lt;p&gt;&lt;font size=&quot;2&quot; face=&quot;Helvetica,Arial&quot;&gt;&lt;b&gt;&lt;u&gt;NOTE &lt;/u&gt;&lt;/b&gt;Remove<br /> FRU module covers and remove PC board from the FRU housing paying<br /> attention to the RF connector (RCVR. INPUT) or (EXCITER OUTPUT)<br /> by removing the nut that holds the connector to the housing. The<br /> rubber vibration pad is located underneath the PC board and is<br /> held in position by two embosses in the sheet metal. &lt;b&gt;It is<br /> important to orient the new pad in the same location as the old<br /> pad and use the embosses to secure the pad in position while<br /> screwing the pc board back in the FRU housing.&lt;/b&gt; All stations<br /> shipped after August 8, 1997 contain the new vibration pad. The<br /> pad can be obtained at no charge from the Americas Parts Division<br /> by making reference to this bulletin #.&lt;/font&gt;&lt;/p&gt;<br /> <br /> &lt;p&gt;&lt;font size=&quot;2&quot; face=&quot;Helvetica,Arial&quot;&gt;No reference to warranty<br /> is implied or intended.&lt;/font&gt;&lt;/p&gt;<br /> <br /> &lt;BR&gt;&lt;BR&gt;&lt;/TD&gt;<br /> &lt;/TR&gt;<br /> &lt;/TABLE&gt;<br /> &lt;/html&gt;</div> Bryan