AN-PRC-70_serv_TM11-5820-553-23_1983.pdf

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1、ARMY TM 11-5820-553-23 NAVY EE150-SN-MMO-010/E110 PRC70 ORGANIZATIONAL AND DIRECT SUPPORT MAINTENANCE MANUAL RADIO SET AN/PRC-70 (NSN 5820-01-062-8246) This copy is a reprint which includes current pages from Change 1. DEPARTMENTS OF THE ARMY, AND THE NAVY 24 JANUARY 1983 WARNING HIGH VOLTAGE is use

2、d in the operation of this equipment DEATH ON CONTACT may result if personnel fail to observe safety precautions Never work on electronic equipment unless there is another person nearby who is familiar with the operation and hazards of the equipment and who is competent in administering first aid.Wh

3、en the technician is aided by operators, he must warn them about dangerous areas. Whenever possible, the power supply to the equipment must be shut off before beginning work on the equipment.Take particular care to ground every capacitor likely to hold a dangerous potential.When working inside the e

4、quipment, after the power has been turned off, always ground every part before touching it. Be careful not to contact high-voltage connections or 115 volt ac input connections when installing or operating this equipment. Whenever the nature of the operation permits, keep one hand away from the equip

5、ment to reduce the hazard of current flowing through the body. Warning: Do not be misled by the term “low voltage.”Potentials as low as 50 volts may cause death under adverse conditions. For Artifical Respiration, refer to FM 21-11. TM 11-5820-553-23 EE150SN-MMO-01B/E110 PRC70 C2 CHANGE No. 2 HEADQU

6、ARTERS DEPARTMENT OF THE ARMY Washington, DC, 1 August 1987 ORGANIZATIONAL AND DIRECT SUPPORT MAINTENANCE MANUAL RADIO SET AN/PRC-70 (NSN 5820-01-062-8246) TM 11-5820-553-23/EE150-SN-MMO-010/E110 PRC70, 23 January 1983, is changed as follows: 1. Remove old pages and insert new pages as indicated bel

7、ow. New or changed material is indicated by a vertical bar in the margin of the page. Added or revised illustrations are indicated by a vertical bar adjacent to the identification number. Remove pagesInsert pages i and ii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .i a

8、nd ii 1-1 through 1-3/(1-4 blank) . . . . . . . . . . . . . . . . . . . .1-1 through 1-3/(1-4 blank) 2-1 and 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1 and 2-2 3-25 and 3-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25 and 3-26 4-13 through

9、4-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13 through 4-20 4-113 through 4-116 . . . . . . . . . . . . . . . . . . . . . . . . . . .4-113 through 4-116 4-119 through 4-122 . . . . . . . . . . . . . . . . . . . . . . . . . . .4-119 through 4-122 4-133 and 4-134 . . . . . . . . .

10、. . . . . . . . . . . . . . . . . . . . . .4-133 and 4-134 4-143 through 4-146 . . . . . . . . . . . . . . . . . . . . . . . . . . .4-134 through 4-146 4-157 through 4-168 . . . . . . . . . . . . . . . . . . . . . . . . . . .4-157 through 4-168 A-1/(A-2 blank) . . . . . . . . . . . . . . . . . . . .

11、 . . . . . . . . . .A-1/(A-2 blank) B-3 through B-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-3 through B-12 Figure FO-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Figure FO-4 Figure FO-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fig

12、ure FO-5 Figure FO-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Figure FO-10 Figure FO-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Figure FO-11 Figure FO-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Figure FO-12 2. Figure FO-2, MO

13、DULATOR/SQUELCH block, Unit 1A1A21, lower right: Change P4” to read P3.” 3. File this change sheet in the front of the publication for reference purposes. Distribution authorized to the Department of Defense and DOD contractors only for official use or for administration or operational purposes. Thi

14、s determination was made on 26 March 1987. Other requests for this document will be referred to Commander, US Army Communications-Electronics Command and Fort Manmouth, ATTN: AMSEL-ME-P, Fort Monmouth, NJ 07703-5000. DESTRUCTION NOTICEDestroy by any method that will prevent disclosure of contents or

15、 reconstruction of the document. By Order of the Secretaries of the Army and the Navy: Official: JOHN A WICKHAM, JR. General, United States Army Chief of Staff R. L. DILWORTH Brigadier General, United States Army The Adjutant General GLENWOOD CLARK Vice Admiral, United States Navy Commander, Space a

16、nd Naval Warfare Systems Command DISTRIBUTION: To be distributed in accordance with DA Form 12-51 literature requirements for AN/PRC-70. TM 11582055323/EE150SN-MMO-010/E110 PRC70 SAFETY STEPS IS THE VICTIM TO FOLLOW IF OF ELECTRICAL SOMEONE SHOCK DO NOT TRY TO PULL OR GRAB THE INDIVIDUAL IF POSSIBLE

17、TURN OFF THE ELECTRICAL POWER IF YOU CANNOT TURN OFF THE ELECTRICAL POWER, PULL, PUSH, OR LIFT THE PERSON TO SAFETY USING A WOODEN POLE OR A ROPE OR SOME OTHER INSULATING MATERIAL SEND FOR HELP AS SOON AS POSSIBLE AFTER THE INJURED PERSON IS FREE OF CONTACT WITH THE SOURCE OF ELECTRICAL SHOCK, MOVE

18、THE PERSON A SHORT DISTANCE AWAY AND IMMEDIATELY START ARTIFICIAL RESUSCITATION a TM 115820553-23/EE150SN-MMO-010/E110 PRC70 FIXED OPERATION WITH LONG RANGE ANTENNAS W A R N I N G TELESCOPINGTYPICAL TOWER EXTENDED RANGE DOUBLET ANTENNA - ANTENNA ANTENNA MAST NEVER ERECT THESE LONG RANGE ANTENNAS DIR

19、ECTLY UNDER POWERLINES. lF YOU MUST ERECT THESE LONG RANGE ANTENNAS NEAR POWERLINES, POWERLINE POLES OR TOWERS, OR BUILDINGS WITH OVERHEAD POWERLINE CONNECTIONS, NEVER PUT THE ANTENNA CLOSER THAN TWO TIMES THE ANTENNA HEIGHT FROM THE BASE OF THE POWERLINE, POLE, TOWER OR BUILDINGS. NEVER ATTEMPT TO

20、ERECT ANY L0NG RANGE ANTENNA WITHOUT A FULL TEAM. BEFORE ERECTING ANY LONG RANGE ANTENNA, INSPECT ALL THE PARTS MAKING UP THE ANTENNA KIT, DO NOT ERECT THE ANTENNA IF ANY PARTS ARE MISSING OR DAMAGED. DO AS MUCH OF THE ASSEMBLY WORK AS POSSIBLE ON THE GROUND. WHEN ERECTING THE ANTENNA, ALLOW ONLY TE

21、AM PERSONNEL IN THE ERECTION AREA. MAKE SURE THAT THE AREA FOR THE ANCHORS IS FIRM.IF THE GROUND IS MARSHY OR SANDY, GET SPECIFIC INSTRUCTIONS FROM YOUR CREW CHIEF OR SUPERVISOR ON HOW TO REINFORCE THE ANCHORS. WHEN SELECTING LOCATIONS FOR ANCHORS, AVOID TRAVELED AREAS AND ROADS. IF YOU CANNOT AVOID

22、 THESE AREAS, GET SPECIFIC INSTRUCTIONS FROM YOUR SUPERVISOR AS TO WHAT CLEAR- ANCE YOUR GUY WIRES AND ROPES MUST HAVE OVER THE TRAVELED AREAS AND ROAD. CLEARLY MARK ALL GUY WIRES AND ROPES WITH THE WARNING FLAGS OR SIGNS SUPPLIED BY YOUR UNIT. IN AN EMERGENCY, USE STRIPS OF WHITE CLOTH AS WARNING S

23、TREAMERS. IF YOU SUSPECT THAT POWERLINES HAVE MADE ACCIDENTAL CONTACT WITH YOUR ANTENNA, STOP OPERATING, ROPE OFF THE ANTENNA AREA, AND NOTIFY YOUR SUPERIORS. IF THE WEATHER IN YOUR AREA CAN CAUSE ICE TO FORM ON YOUR LONG RANGE ANTENNA AND ITS GUY WIRES AND ROPES, ADD EXTRA GUYS TO SUPPORT THE SYSTE

24、M. ROPE OFF THE AREA AND POST IT WITH WARNING SIGNS LIKE “BEWARE OF FALLING ICE”. DO NOT TRY TO ERECT ANY ANTENNA DURING AN ELECTRlCAL STORM. KEEP A SHARP EYE ON YOUR ANCHORS AND GUYS.CHECK THEM DAILY AND lMMEDIATELY BEFORE AND AFTER BAD WEATHER. b TM 11-5820-553-23/EE150-SN-MMO-010-E110 PRC 70 WARN

25、ING Adequate ventilationshould be provided while using TRICHLOROTRIFLUOROETHANE. Prolonged breathing of vapor should be avoided. The solvent should not be used near heat or open flame; the products of decomposition are toxic and irritating.Since TRICHLOROTRIFLUOROETHANE dissolves natural oils, prolo

26、nged contract with skin should be avoided. When necessary, use gloves which the solvent can- not penetrate. If the solvent is taken internally, consult a physician immediately. Change 1c/(d blank) TM 115820-55323 EE150-SN-MMO010/E110 PRC70 TECHNICAL MANUALDEPARTMENTS OF THE ARMY NO. 11-5820-553-23AN

27、D THE NAVY Technical Manual No. EE150-SN-MMO-010/E110 PRC70WASHINGTON, DC, 24 January 1983 ORGANIZATIONAL AND DIRECT SUPPORT MAINTENANCE MANUAL RADIO SET AN/PRC70 (NSN 5820-01-062-8246) REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS You can help improve this manual. If you find any mistakes or if yo

28、u know of a way to improve the procedures, please let us know. Mail your letter, DA Form 2028 (Recommended Changes to Publications and Blank Forms) or DA Form 2028-2 located in back of this manual direct to Commander, US Army Communications-Electronics Command and Fort Monmouth, ATTN: AMSEL-ME-MP, F

29、ort Monmouth, New Jersey 07703-5000. For Navy, mail comments to the Commander, Space and Naval Warfare Systems Command, ATTN: SPAWAR 8122, Washington, DC 20363-5100. In either case, a reply will be furnished direct to you. Chapter SECTION Chapter SECTION Chapter SECTION Chapter SECTION Chapter APPEN

30、DIX SECTION APPENDIX SECTION Index . . . . . . . 1. I. II. 2. I. II. III. IV. V. 3. I. II. 4. I. II. III. IV. V. VI. 5. A. B. I. II. III. IV. C. I. II. . . INTRODUCTION General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Description and Data .

31、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ORGANIZATIONAL MAINTENANCE INSTRUCTIONS Tools and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Repainting and Refinishing Instructions . . . . . . . . . . . . . . . . . . Preventive Maintenance C

32、hecks and Services (PMCS) . . . . . . Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance of the Radio Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . FUNCTIONING OF EQUIPMENT Receiver-Transmitter Functional Analysis . . . . . . . . . . . . .

33、 . . . Subassembly Functional Analysis . . . . . . . . . . . . . . . . . . . . . . . . DIRECT SUPPORT MAINTENANCE INSTRUCTIONS General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tools and Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . .

34、Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance of Receiver-Transmitter RT-1133/PRC-70 . . . . . . Direct Support Testing Procedures. . . . . . . . . . . . . . . . . . . . . Additional Maintenance Instructions. . . . . . . . . . . . . . . . . .

35、 . MATERIEL USED IN CONJUNCTION WITH MAJOR ITEM REFERENCES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MAINTENANCE ALLOCATION Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance Allocation Chart . . . .

36、 . . . . . . . . . . . . . . . . . . . . . . Tool and Test Equipment Requirements . . . . . . . . . . . . . . . . . . Remarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EXPENDABLE SUPPLIES AND MATERIALS LIST Introduction. . . . . . . . . . . . . . . .

37、. . . . . . . . . . . . . . . . . . . . . . . . . Expendable Supplies and Materials List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Paragraph 1-1 1-9 2-1 2-2 2-3 2-4 2-5 3-1 3-4 4-1 4-2 4-3 4-8 4-11 4-14 . EE150

38、-SN-MMO-01B/E110 PRC70 Page 1-1 1-2 2-1 2-1 2-1 2-2 2-2 3-1 3-2 4-1 4-1 4-2 4-137 4-150 4-168 A-1 B-1 B-3 B-9 B-12 C-1 C-2 I-1 Change 2 i TM 115820-55323/EE150SNMMO010/E110 PRC70 LIST OF ILLUSTRATIONS Figure 2-1 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16 3-17 3-18 3-19 3-

39、20 3-21 3-22 3-23 3-24 3-25 3-26 3-27 3-28 3-29 4-1 4-2 4-3 4-3 4-4 4-5 4-6 4-6 4-6 4-7 4-8 4-9 4-10 4-11 4-12 4-13 4-13 4-13 4-14 4-15 4-16 4-17 4-18 4-19 4-20 4-21 4-22 4-23 4-23 4-24 4-25 TitlePage RT Unit, Battery Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power and TR Relay 1A1A2, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455 kHz IF Gain 1A1A3, Block Diagram . . . . . . . . . . . . . . . . . . . . . . .

41、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Supply +1-V/ +5V Regulator 1A1A4, Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Supply -5V Regulatorl A1A5, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

42、. . . . . . . . . . . . . . . . . . . . Translator 1A1A6, Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Upper Loop Divider 1A1A7, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . .

43、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Upper Loop Phase Detector 1A1A8, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lower Loop 1A1A9, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . .

44、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oscillator Distributor 1A1A10, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oscillator Digital Divider lAIAll, Block Diagram . . .

45、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transmit Broadband 1A1A12, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Up Converter 1A1A3, Block Diagram . . . . . . . . .

46、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . First IF Selectivity 1A1A14, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . First IF AGC and Gain 1A1A15

47、, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Second Mixer 1A1A16, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Second IF

48、 1A1A17, Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pump VFO 1A1A18, Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

49、. . . . . . . . . IF Selectivity 1A1A19, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC Control 1A1A20, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modulator/ Squelch 1A1A21, Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455 kHz IF Detector 1A1A22, Block Diagram . . . . . . . .