75f7fd7e   
   From: spam@flippers.com   
      
   Grojohn wrote:   
   > I have a write in problem.   
   >   
   > I have the manual, but the tests are for models 101,161, and 201. My   
   > TEU board and RCSU1 board have the same test points, so I think the   
   > tests are will work.   
   >   
   > Ok, Test B works; Thats when i unplug the memory unit RCA jack, do a   
   > scan and touch from test point C to the inside socket for the memory   
   > unit on the TEU board.  GOOD!   
   >   
   > Next, test C works, the battery trick; GOOD!   
   >   
   > Now it tells me to use test G to pinpoint.   
   >   
   > Test G tells me to connect a test lamp from point D to A.  This is   
   > from the write in points(D) to ground (A).   
   > My lamp does not glow and i make a selection and my lamp does not   
   > glow, so it tells me to go to test J.   
   >   
   > (my lamp is homemade; its a 28volt lamp with leads, and I tested it   
   > with a 9 volt power supply and it did light)   
   >   
   > Ok, onward to test J. I remove the jumper between test points D and E   
   > and hook up my lamp. It does NOT show a dim glow. Its says it lamp   
   > does NOT glow, replace "selection receiver (defective write in   
   > electronics)".   
   >   
   > SO, im guessing that my selection reciever is my TEU board.   
   >   
   > Im getting good voltages -300 is about -298. The -150 is about -149,   
   > and the -147 on the anode of the diode is there. The cathode to ground   
   > measures 0 volts. Also, i pulled the diode and tested with meter and   
   > it seems ok.   
   >   
   > I have inspected and  tested signals all the way up to the RCSU1. I   
   > repaired the wiper contact on the SPU1.   
   >   
   > I have also recapped the TEU board, but did not replace any tubes.   
   >   
   > HELP!   
   >   
   > John   
   >   
   >   
   >   
   >   
   >   
      
   John, the main problem is you are not usingthe correct lamp. The Seeburg   
   Test Lamp is a specially chosen NEON lamp - not unlike the ones you can   
   pick up at your local hardware store - however they are selected for   
   thier voltage response. If I am not mistaken the standard Neon Glo-Lamp   
   test needs around 90 VAC to work, whereas Seeburg selected NEON lamps   
   that glowed around 80VAC. I could be wrong...   
      
   Still, using a regular Neon Glo-Test device will work for most   
   troubleshooting situations with the Seeburg test system.   
      
   http://commons.wikimedia.org/wiki/File:Neon_Test_Lamp.jpg   
      
   John :-#)#   
      
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