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234align [2011/12/14 16:46]
n1eu
234align [2011/12/14 16:50] (current)
n1eu
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 ===== Alignment Procedure for 234 Speech Processor ===== ===== Alignment Procedure for 234 Speech Processor =====
  
-//(from Ten-Tec service dept with notes in italic ​by N1EU)//+//(from Ten-Tec service dept with annotated photo by N1EU)//
  
 1.  Hook up to rig as normal with no input (no mic connected) 1.  Hook up to rig as normal with no input (no mic connected)
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 3.  Attach scope to junction of R18 and R19 on Clipper-Detector board (rear 3.  Attach scope to junction of R18 and R19 on Clipper-Detector board (rear
-board). ​ Note: R18 is immediately in front of crystal Y-1. //(looking from front, Y-1 is the back left xtal and R19 is immediately in front of and at right angles to R18)//+board). ​ Note: R18 is immediately in front of crystal Y-1. 
  
-  * Turn R33 BALANCE pot on SSB board //(front board)// ​fully CW.  ​//(looking from front, R33 is back right pot)// +  * Turn R33 BALANCE pot on SSB board fully CW.   
-  * Peak T-1 for maximum output.  ​//​(immediately right of two xtals)//+  * Peak T-1 for maximum output.  ​
   * Turn R-33 back CCW for a null in output.   * Turn R-33 back CCW for a null in output.
  
-5.  Attach counter to TP1 (coax) on SSB Board. ​ This is the center conductor of the coax that carries the BFO signal from the SSB board to the Clipper-detector board. ​//(looking from front, on right side of board)// ​+5.  Attach counter to TP1 (coax) on SSB Board. ​ This is the center conductor of the coax that carries the BFO signal from the SSB board to the Clipper-detector board. ​
   * Turn front panel passband control fully CCW and adjust C-14 for 6.100220 MHz (that is, 220 Hz above 6.1 MHz).  ​   * Turn front panel passband control fully CCW and adjust C-14 for 6.100220 MHz (that is, 220 Hz above 6.1 MHz).  ​
   * Turn passband control back fully CW.  Frequency should drop to approximately 6.099780 (that is, 220 Hz below 6.1 MHz).  ​   * Turn passband control back fully CW.  Frequency should drop to approximately 6.099780 (that is, 220 Hz below 6.1 MHz).  ​

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