ÿþ<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta name="Description" content="X-Ray, Technical Support, Tech Support, FAQ, Imaging, Digital, radiographic x-ray systems, radiographic system, fluoroscopic system, dental x-ray, mammography systems, portable x-ray, veterinary x-ray equipment, chiropractic x-ray, surgical c-arms, high frequency generators, x-ray system components." /> <meta name="Keywords" content="Technical Support, Del Medical, home page" /> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <meta name="Distribution" content="Global" /> <meta name="Author" content="H Hultfeldt - h_hultfeldt@hotmail.com" /> <meta name="Robots" content="index,follow" /> <link rel="stylesheet" href="images/DMSG.css" type="text/css" /> <title>Del Medical Technical Support</title> </head> <body> <!-- wrap starts here --> <div id="wrap"> <!--header --> <div id="header"> <div id="header-links"> <p> <a href="index.html">Home</a> | <a href="contact.html">Contact</a> </p> </div> <!--header ends--> </div> <div id="header-photo"> <h1 id="logo-text"><a href="index.html" title="">Technical Support</a></h1> <h2 id="slogan"></h2> </div> <!-- navigation starts--> <div id="nav"> <ul> <li><a href="index.html">Home</a></li> <li><a href="manuals-index.html">Manuals</a></li> <li><a href="si-index.html">Service Info.</a></li> <li><a href="sp-index.html">Spare Parts</a></li> <li><a href="rp-index.html">Room Planning</a></li> <li><a href="training.html">Training</a></li> <li><a href="sad-index.html">Software & APR Database</a></li> <li id="current"><a href="faq-index.html">FAQ</a></li> </ul> <!-- navigation ends--> </div> <!-- content-wrap starts --> <div id="content-wrap" class="two-col" > <div id="sidebar"> <h1>Product Category</h1> <ul class="sidemenu"> <li><a href="faq-gq.html">General Questions</a></li> <li><a href="faq-apollo.html">Apollo</a></li> <li><a href="faq-apr.html">APR Programming</a></li> <li><a href="faq-buckys.html">Buckys</a></li> <li id="current">><a href="faq-generators.html">Generators</a></li> <li><a href="faq-overheadtubecranes.html">Overhead Tube Cranes</a></li> <li><a href="faq-tables.html">Tables</a></li> <li><a href="faq-tubestands.html">Tubestands</a></li> <li><a href="faq-uarc.html">U-ARC</a></li> <li><a href="faq-veterinarian.html">Veterinarian</a></li> <li><a href="faq-wallstands.html">Wallstands</a></li> </ul> <h1>Links</h1> <ul class="sidemenu"> <li><a href="http://www.delmedical.com/">Del Medical Systems Group</a></li> </ul> <br /> <p> <!-- AddThis Button BEGIN --> <script type="text/javascript">var addthis_pub="inkd";</script> <a href="http://www.addthis.com/bookmark.php?v=20" rel="nofollow" onmouseover="return addthis_open(this, '', '[URL]', '[TITLE]')" onmouseout="addthis_close()" onclick="return addthis_sendto()"> <img alt="share" id="share" src="images/share_button.gif" /> </a> <script type="text/javascript" src="http://s7.addthis.com/js/200/addthis_widget.js"></script> <!-- AddThis Button END --> </p> <!-- sidebar ends --> </div> <div id="main"> <a name="Frequently Asked Questions"></a> <h1>Frequently Asked Questions (FAQ)</h1> <h3>Generators</h3> <p> <strong>General Questions</strong><br> <i>G1:</i><a href="#Q1"> Why is my prep ready light on a GX/MP/AP/ATC/MPX/APX generator not illuminating after the prep delay?</a><br> <i>G2:</i><a href="#Q2"> Why does my GX/MP generator s time display flash when I attempt an exposure? </a><br> <i>G3:</i><a href="#Q3"> What is meant by the phrase KV Fault?</a><br> <i>G4:</i><a href="#Q4"> Why do I have a 4 digit KV or other strange symbols displayed on my AP/ATC series generator display when manual mode is selected?</a><br> <i>G5:</i><a href="#Q5"> I can t change focal spot in calibration. What shall I do?</a><br> <i>G6:</i><a href="#Q6"> Why does a mA fault occur when pressing prep or exposure on AP/ATC /MPX/APX generators?</a><br> <i>G7:</i><a href="#Q7"> Need to switch incoming power to a GX/MP/AP/ATC/MPX/APX generator from single phase to 3 phase power. Are modifications necessary? </a><br> <i>G8:</i><a href="#Q8"> What are the power requirements for the GX/MP/AP/ATC/MPX/APX generators?</a><br> <br> <strong>CM Generators</strong><br> <i>G9:</i><a href="#Q9"> Why do the buckys oscillate without command after the generator is powered on?</a><br> <i>G10:</i><a href="#Q10"> Why do I keep experiencing Inverter #1 errors when an exposure is attempted at higher KV settings?</a><br> <i>G11:</i><a href="#Q11"> The generator does not turn on via the console, what might cause this problem?</a><br> <i>G12:</i><a href="#Q12"> The generator does not prep via the console, what might cause this problem?</a><br> <i>G13:</i><a href="#Q13"> The generator does not expose via the console, what might cause this problem?</a><br> <i>G14:</i><a href="#Q14"> When programming technique changes for small, medium and large patients, why aren t all the entered mAs values saved to memory?</a><br> <i>G15:</i><a href="#Q15"> When utilizing CMP or Indico GenWare software, what type of cable do I use to connect to the console?</a><br> <i>G16:</i><a href="#Q16"> Do I really need to use the CPI GenWare?</a></br> <i>G17:</i><a href="#Q17"> Why do I get  CAL-MIN MA ERROR when calibrating a CMP generator for the first time?</a><br> <i>G18:</i><a href="#Q18"> What are the power requirements for CM series and IN series generators?</a><br> <br> <strong>Sedecal Generators</strong><br> <i>G19:</i><a href="#Q19"> Can I place the Sedecal generator on the top of the U-ARC power cabinet?</a><br> <i>G20:</i><a href="#Q20"> Why can t I get into the service mode utility?</a><br> <i>G21:</i><a href="#Q21"> Do I really need to perform the OPEN LOOP mA calibration?</a><br> <i>G22:</i><a href="#Q22"> How do I gain access to the extended memory locations?</a><br> <i>G23:</i><a href="#Q23"> Where is all of the calibration data stored?</a><br> <br> <strong>HE425 Generator</strong><br> <i>G24:</i><a href="#Q24"> Why do I have an Intermittent no exposure problem on a new unit?</a><br> <i>G25:</i><a href="#Q25"> My generator preps ok, but I don t get an exposure, what might cause this problem?</a><br> <i>G26:</i><a href="#Q26"> The unit will take one exposure and then will not expose after that, until I cycle power, what might cause this problem?</a><br> <i>G27:</i><a href="#Q27"> I have a standard  R stator Toshiba tube and the rotor wires are not labeled. How do I connect the rotor?</a><br> <i>G28:</i><a href="#Q28"> Why do I have an E in the mAs display?</a><br> </p> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G1:</i><a name="Q1"> Why is my prep ready light on a GX/MP/AP/ATC/MPX/APX generator not illuminating after the prep delay?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">In addition to the possibility of a door or collimator interlock connection; check that the X-Ray tube stator is wired to the generator correctly. Incorrect main and phase currents will cause the absence of the Rotor OK signal. The wire colors for main, phase and common can vary. It is best to measure the main to common and phase to common resistance to determine connections. The main resistance is about half the phase resistance with a typical R stator. Q stators would be a similar ratio, but measuring lower resistance values. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G2:</i><a name="Q2"> Why does my GX/MP generator s time display flash when I attempt an exposure? </a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">The flashing time display indicates a KV fault. Refer to Generator manuals section for kV Fault troubleshooting guides. <ul> <li>Click <a href="Manuals/Generators/8000-GXMPKVFLTS.pdf">here</a> for kV Fault Troubleshooting Guide for the MP/GX Series.</li> </ul> <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G3:</i><a name="Q3"> What is meant by the phrase KV Fault?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">The fault is an error that means the anode and /or cathode KV feedback is either less than 13 or greater than 72.5 KV. Refer to Generator manuals section for kV Fault troubleshooting guides. <ul> <li>Click <a href="Manuals/Generators/8000-APKVFLTS.pdf">here</a> for kV Fault Troubleshooting Guide for RV 50 & AP/ATC.</li> <li>Click <a href="Manuals/Generators/8000-GXMPKVFLTS.pdf">here</a> for kV Fault Troubleshooting Guide for the MP/GX Series.</li> </ul> <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G4:</i><a name="Q4"> Why do I have a 4 digit KV or other strange symbols displayed on my AP/ATC series generator display when manual mode is selected?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">This problem is usually a corrupted NVRAM chip on the Microprocessor board inside the control console. A tube arc or electrical surge may have caused this to happen. Another symptom of this problem is that you can t change focal spot in calibration. Proceed as described below to reprogram the default values for manual techniques. <ul> <li>Turn console on </li> <li>Press  Prev Screen to display  SYSTEM MENU </li> <li>Select  Utilities </li> <li>Enter Password  SR48 </li> <li>From  Utilities Menu , select  System Install </li> <li>Press  SELECT 10 times, or until the  Default Values screen is displayed </li> <li>Press arrow key above Mas display to highlight value </li> <li>On right side of console, press  Arrow Up , then  Arrow Down </li> <li>Press arrow key above Kvp display 2 times to highlight value </li> <li>On right side of console, press  Arrow Up , then  Arrow Down </li> <li>Press 3rd key on top row (Filament Select) 3 times to toggle focal spot </li> <li>Press  Select and answer NO to Password Modification question </li> </ul> After  Checking for and Saving Changes&  , select Manual Mode on console and verify proper system operation. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G5:</i><a name="Q5"> I can t change focal spot in calibration. What shall I do?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">Refer to </i><a href="#Q4">G4: for cause and solution.</a> <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G6:</i><a name="Q6"> Why does a mA fault occur when pressing prep or exposure on AP/ATC/ MPX/APX generators?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">The mA fault calibration needs to be performed. The actual filament reference voltage cannot exceed the limit set in the calibration. The filament reference voltage may be a higher than normal value due to a component failure on the mA/Rotor board. See service manual for details. Click <a href="manuals-generators.html"> here</a> to go to the Generator Manuals Section. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G7:</i><a name="Q7"> Need to switch incoming power to a GX/MP/AP/ATC/MPX/APX generator from single phase to 3 phase power. Are modifications necessary? </a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">No modifications are necessary on generators produced after the 1994 production run. These generators can accept single or 3 phase power with the proper line matching transformer requirements. Generators produced earlier than that time need to be checked to confirm that a 3 pole line contactor in the power module is present. Please consult tech support if a 3 pole contactor upgrade kit is needed or a need for a line matching transformer part number to step the voltage up or down. Nominal 240-280 is required depending on the generator. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G8:</i><a name="Q8"> What are the power requirements for the GX/MP/AP/ATC/MPX/APX generators?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">Please refer to the <a href="Room Planning/Site Planning/8000-LineReq.pdf">X-Ray Generator Power Requirements</a> document. Be sure to match the KW rating of the generator to the specific chart from the document. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G9:</i><a name="Q9"> Why do the buckys oscillate without command after the generator is powered on?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">The H.V. auxiliary board has a snubber network for each bucky drive circuit. This is to prevent damage to the generator from some older style bucky s. The snubber networks are not needed for the buckys we use. Leakage current through the snubbers is enough to drive the buckys on an intermittent basis. To disable the snubber networks, clip one side of resistors R2 and R15 on the HV auxiliary board. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G10:</i><a name="Q10"> Why do I keep experiencing Inverter #1 errors when an exposure is attempted at higher KV settings?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">Inverter # 1 errors indicate that the inverter has exceeded the current limitations. High currents occur when arcing in the secondary of the high voltage chain. A tube seasoning procedure in the Maintenance section of the service manual may need to be performed to heat soak the tube housing and eliminate this arcing, in some cases. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G11:</i><a name="Q11"> The generator does not turn on via the console, what might cause this problem?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">There s a possibility of a broken communication wire in the network communication cable between the console and power unit. Swap the cable with a standard network cable as a test. This problem is known to occur during new installations especially if the comm. cable was pulled through conduit. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G12:</i><a name="Q12"> The generator does not prep via the console, what might cause this problem?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">See answer to question G11. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G13:</i><a name="Q13"> The generator does not expose via the console, what might cause this problem?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">See answer to question G11. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G14:</i><a name="Q14"> When programming technique changes for small, medium and large patients, why aren t all the entered mAs values saved to memory?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">Only the KV value can be programmed for each patient size. You can not do this with mAs. The last entered mAs value will be the mAs value for all three patient sizes small, medium, and large. If this is unacceptable, you have to configure the console for CM thickness. Here the user will have control over kV, mAs and time for a selected anatomy and CM thickness. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G15:</i><a name="Q15"> When utilizing CMP or Indico GenWare software, what type of cable do I use to connect to the console?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">This cable must be a 9 pin NULL MODEM cable with female connectors at both ends. If your laptop does not have a serial port, you will need to purchase a USB to serial adapter with the driver. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G16:</i><a name="Q16"> Do I really need to use the CPI GenWare?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">For CMP and Indico generators, GenWare is not required for every installation, however; you will need to utilize the GenWare program if the tube data information is not in the console tube library or if you are making major changes to the APR data base. It is also a wise idea to back up all of the APR and generator data when installation is complete. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G17:</i><a name="Q17"> Why do I get  CAL-MIN MA ERROR when calibrating a CMP generator for the first time?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">Since tubes have different emission levels, some tubes conduct (produce mA) easier than others. This error is displayed when the tube conducts as a result of filament current in stand-by. The mA produced under this condition is so small that it triggers the Low mA trip point and displays the error. Simply lower the stand-by filament current by 2 clicks, and re-try the auto cal. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G18:</i><a name="Q18"> What are the power requirements for CM series and IN series generators?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">Please refer to the CPI Technical Documents in the Tech Support section of our website. Click on CPI Indico or CMP 200 Power Requirements. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G19:</i><a name="Q19"> Can I place the Sedecal generator on the top of the U-ARC power cabinet?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">Yes. The U-ARC power cabinet is designed to support the weight of the generator. There is also a special bracket to attach both cabinets together. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G20:</i><a name="Q20"> Why can t I get into the service mode utility?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">A service switch needs to be activated in the generator which allows access into the service utility mode. This prevents users and non-qualified people access into the service utility. Switch 3024SW2-3 shall be closed or in position ON for access into the service utility. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G21:</i><a name="Q21"> Do I really need to perform the OPEN LOOP mA calibration?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">We have experienced very good results with performing the mA calibration configured for CLOSED LOOP. Although the manual states OPEN LOOP must be performed, you should be fine with calibrating CLOSED LOOP only. <U>Always check the mA output waveform after the auto cal is complete</U>. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G22:</i><a name="Q22"> How do I gain access to the extended memory locations?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">Enter the service mode utility and select manual calibration. In this screen increase the mA value beyond the maximum mA station, the mA value will then change to the first memory location E01. They will increment sequentially as the mA is increased. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G23:</i><a name="Q23"> Where is all of the calibration data stored?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">All of the calibration data is stored on the 8 pin U3 EEPROM on the high tension control board. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G24:</i><a name="Q24"> Why do I have an Intermittent no exposure problem on a new unit?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">Most commonly on new installs, a jumper on the rotor control pcb is mis-set. This jumper tells the rotor pcb what tube is being used so the proper rotor current can be sampled during the prep process. Check J8 on the rotor control for proper tube selection. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G25:</i><a name="Q25"> My generator preps ok, but I don t get an exposure, what might cause this problem?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">A 24 DC signal comes out of the rotor control pcb for exposure start. This 24 Volts goes directly into the main control pcb at H4 1-2. There is an LED on the rotor pcb that must come on at the end of prep in order for this 24 Volt signal to be released. If this LED does not come on, the problem is between the rotor control and the stator of the tube. Check the tube stator resistance through the rotor cable and all connections on the rotor pcb and the main pcb. If these checkout ok, it s probably a failure on the rotor pcb. <br> NOTE: There are three different designs of rotor boards for this unit. Depending on the age of yours some boards are not backwards compatible. When ordering a new rotor board, the part# off of the board you have will be helpful. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G26:</i><a name="Q26"> The unit will take one exposure and then will not expose after that, until I cycle power, what might cause this problem?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">Most likely on this  first exposure the mA overload relays are activating which locks out subsequent exposures. This is primarily due to a mA overload condition usually caused by arcing in the secondary (Hv xfmr, Tube or hv cables) or gross mis-calibration of the filament. <br> Verify that the mA overload trip relays are actually activating and if so, search for evidence of arcing. To ensure the hv xfmr is ok, pull the hv cables from the hv xfmr. Add additional oil in the hv ports and take an exposure while looking for mA/mAs. If you are reading mA/mAs under this  no-load condition the hv xfmr may need to be replaced. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G27:</i><a name="Q27"> I have a standard  R stator Toshiba tube and the rotor wires are not labeled. How do I connect the rotor?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">On all Toshiba tubes, the rotor cable is connected AT THE TUBE END to a terminal strip labeled 1-2-3 under the anode end cap. 1 is always COMMON, 2 is always MAIN and 3 is always PHASE. <U>Don t get hung up on the wire colors!</U><br> When measuring resistance:<br> Common to Main 25©<br> Common to Phase 60©<br> Main to Phase 75©<br> <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> <table> <tr class="row-b"> <td class="first"><img src="images/Q.gif" width="43" height="35" class="no-border" lowsrc="images/Q.gif"="autolowsrc" /></td> <td width="450"><strong><i>G28:</i><a name="Q28"> Why do I have an E in the mAs display?</a></strong></td> </tr> <tr class="row-a"> <td class="first"><img src="images/A.gif" width="43" height="30" lowsrc="images/A.gif"="autolowsrc" /></td> <td width="450">An E in the mAs display indicates that the generator (Main control pcb) has lost or does not know it s selected mA or time station. Typically this is a switch problem. An end user may get this E if the technique selection is above or below the normal operating parameter of the tube. <p class="align-right"><a href="faq-generators.html">Up ^</a></p></td> </tr> </table> </br> </div> <!-- content-wrap ends--> </div> <!-- footer starts --> <div id="footer-wrap"><div id="footer"> <p> &copy; 2008-2009 <strong><a href="http://www.delmedical.com">Del Medical Systems Group</a></strong> | <a href="index.html">Home</a> </p> </div></div> <!-- footer ends--> <!-- wrap ends here --> </div> <script type="text/javascript"> var gaJsHost = (("https:" == document.location.protocol) ? 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