TM 11-6625-2837-14&P-7 TECHNICAL MANUAL OPERATOR'S ...

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CHANGE B (Cont’d) 15. Adjust A16R3 to null the second harmonic level; adjust A16R1 to null the third harmonic level. TM 11-6625-2837-14 & P-7 16. Step the System Under Test center frequency down 1 Hz. Note the direction and amount of read- injustment of A16R3 and R1 necessary to null the second and third harmonics. 17. Set A16R3 and R1 for the best compromise (minimum second and third harmonic levels) at both center frequency settings of 299.999999 and 300 MHz. 18. Repeat steps 4 through 20 until all the conditions below are met without further adjustment. a. Carrier and first sidebands are equal within 0.5 dB when changing Center Frequency of System Under Test between 100 and 99.999999 MHz (Steps 7-8). b. Second harmonic levels are equal within 4 dB or >40 dB down from the fundamental at center frequencies of 300 and 299.999999 MHz (Step 17). c. Third harmonic levels are equal within 4 dB or >35 dB down from the fundamental at center frequencies of 300 and 299.999999 MHz (Step 17). 19. Replace the mainframe cover and wait 10 minutes. Check to see if the conditions outlined in Step 18 are still met. If not, repeat steps 4 through 19. Table 6-2: Change A13 to 86601-60039 ATTENUATOR ASSY (except Option 001). Replace the A16 Assembly parts list with the one in this change. Figure 8-12: Replace with Figure 7-2. 7-5
Change B (Cont’d) TM 11-6625-2837-34-&P-7 Figure 7-2. A16 Phase Modulator Driver Assembly Component and Test Point Locations (Change B 7-6
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TECHNICAL MANUAL OPERATOR’S, ORGA
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TM 11-6625-2837-14&P-7 This manual
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Section Page VII MANUAL CHANGES ...
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0-1. Scope SECTION 0 INTRODUCTION T
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Section 1 TM 11-6625-2837-14&P-7 Fi
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Section 1 TM 11-6625-2837-14&P-7 FR
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Section 1 TM 11-6625-2837-14&P-7 FR
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Section 1 TM 11-6625-2837-14&P-7 Ta
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Section 1 TM 11-6625-2837-14&P-7 Ta
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Section 1 TM 11-6625-2837-14&P-7 10
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Section 1 TM 11-6625-2837-14&P-7 2-
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Section 3 TM 11-6625-2837-14&P-7 1
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Section 3 TM 11-6625-2837-14&P-7 1.
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Section 3 TM 11-6625-2837-14&P-7 TU
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Section 4 TM 11-6625-2837-14&P-7 4-
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Section 4 TM 11-6625-2837-14&P-7 PE
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Section 4 TM 11-6625-2837-14&P-7 PE
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Section 4 TM 11-6625-2837-14&P-7 4-
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Section 4 TM 11-6625-2837-14&P-7 4-
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Section 4 TM 11-6625-2837-14&P-7 PE
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Section 4 TM 11-6625-2837-14&P-7 PE
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Section 4 TM 11-6625-2837-14&P-7 4-
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Section 4 TM 11-6625-2837-14&P-7 4-
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Section 4 TM 11-6625-2837-14&P-7 4-
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Section 4 TM 11-6625-2837-14&P-7 4-
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Page 94 and 95: Section 5 ADJUSTMENTS 5-28A. PHASE
Page 96 and 97: ADJUSTMENTS 5-28B. PHASE MODULATION
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Page 100 and 101: Section 6 Table 6-1. Reference Desi
Page 102 and 103: Section 6 Reference Designation HP
Page 106 and 107: TM 11-6625-2837-14 & P-7 Section 6
Page 110 and 111: TABLE 6-4 (continued) PART NUMBER
Page 112 and 113: Section 7 7-1. INTRODUCTION 7-2. Th
Page 114 and 115: Section 7 TM 11-6625-2837-14 & P-7
Page 126 and 127: Section 8 TM11-6625-2837-14 & P-7 8
Page 132 and 133: Section 8 TM 11-6625-2RI7-14 & P-7
Page 136 and 137: Section 8 TM 11-6625-2837-14-P-7 SE
Page 142 and 143: Figure 8-6. System Troubleshooting
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Page 148 and 149: Figure 8-8. Main Troubleshooting Bl
Page 152 and 153: SERVICE SHEET 4 TM 11-6625-2837-14
Page 154 and 155: Figure 8-10. A7 Mixer Assembly’s
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Page 160 and 161: Figure 8-14. Phase Modulation Secti
Page 164 and 165: Figure 8-16. Amplifier/Detector Sec
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SERVICE SHEET 7 (Cont’d) a 10 dB
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Section 8 TM 11-6625-2837-14 & P-7
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Section 8 TM 11-6625-2837-14 & P-7
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Figure 8-22. Attenuator Section Sch
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SERVICE SHEET 9 (Cont’d) TM 11-66
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Figure 8-23. A11 Logic Assembly Com
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Section 8 TM 11-6625-2837-14 & P-7
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Section 8 TM 11-6625-2837-14 & P-7
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TM 11-6625-2837-14 & P-7 SECTION IX
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Section IX TM 11-6625-2837-14 & P-7
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Section IX TM 11-6625-2837-14 & P-7
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D-1. General APPENDIX B MAINTENANCE
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Allocation Chart. Subcolumns of col
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SECTION III TOOL AND TEST EQUIPMENT
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PIN: 049778-000
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