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234align [2011/12/14 20:37] n1eu |
234align [2011/12/14 21:50] (current) n1eu |
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===== Alignment Procedure for 234 Speech Processor ===== | ===== Alignment Procedure for 234 Speech Processor ===== | ||
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+ | //(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. | + | board). Note: R18 is immediately in front of crystal Y-1. |
* Turn R33 BALANCE pot on SSB board fully CW. | * Turn R33 BALANCE pot on SSB board fully CW. | ||
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* 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. | + | 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. | ||
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+ | {{:234pcb.jpg?|}} | ||