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234align [2011/12/14 21:46] 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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| 6. Turn passband control back to center, or position so that your voice sounds normal to someone who knows your voice. Note: turning the passband control CCW increases the treble, while turning the control CW increases bass. This is counter intuitive and not mentioned in the manual. | 6. Turn passband control back to center, or position so that your voice sounds normal to someone who knows your voice. Note: turning the passband control CCW increases the treble, while turning the control CW increases bass. This is counter intuitive and not mentioned in the manual. | ||
| - | {{:234pcb.jpg?300|}} | + | {{:234pcb.jpg?|}} |
