HP-200CD-Manual-SNP_605 电路图.pdf

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1、200CD WIDE RANGE OSCILLATOR OPERATING AND SERVICE MANUAL HEWLETT III PACKARD RadioFans.CN 收音机爱 好者资料库 HWLETT PACKARD CERTIFICATION The Hewlett- thoroughly te specifications Packard Com are traceable t allowed by th ackard Company certifies that this instrument was ted and inspected and found to meet

2、its published hen it was shipped from the factory. The Hewlett- any f urther certifies that its calibration measurements the U.S. National Bureau of Standards to the extent Bureaus calibration facility. W RRANTY AND ASSISTANCE All Hewlett- ackard products are warranted against defects in materiais a

3、nd orkmanship. This warranty applies for one year from the date of del very, or, in the case of certain major components listed in the operati g manual, for the specified period. We will repair or replace prod cts which prove to be defective during the warranty period. No ot er warranty is expressed

4、 or implied. We are not liable for consegue tial damages. For any assis ance contact your nearest Hewlett-Packard Sales and Service Office Addresses are provided at the back of this manual. RadioFans.CN 收音机爱 好者资料库 Printed: NOV 1965 00084-6 OPERATING AND SERVICE MANUAL (HP PART NO. 200CD-903) M WIDE

5、DEL 2000D/CDR RANGE OSCILLATOR SERIAIS PREFIXED: 605- Appendix C, anual Backdating Changes, adapts this manual to serials prefixed: 333-, 229-, 212-, 129-, and 103-, 005- and seriais 22549 thru 1. Cop right Hewlett-Packard Company 1955 P.O. Box 301 Loveland, Colorado U. S. A. RadioFans.CN 收音机爱 好者资料库

6、 Model 200CD Section I GENERAL INFORMATION Table of Contents List of Illustrations and Tables TABLE OF CONTENTS Page Section Page 1-1 V MAINTENANCE (Contd) 1-1. Description 1-15-9. Amplifier Power Supply 5-2 1-6. Differences Between InstrLments. . 1-15-11. Repair and Replacement 5-2 1-8. Backdating

7、Sheet 1-15-12. Cabinet Removal 5-2 5-14. Servicing Etched Circuit Boards5-3 SectionPage5-16. Tube Replacement 5-3 II PREPARATION FOR USE 2-15-18. Replacement of Lamps, RT1 2-1. Introduction 2-1and RT2 5-4 2-3. Unpacking and Inspection 2-15-20. Tuning Capacitor Repair .5-4 2-6. Power Requirements 2-1

8、5-22. Range Switch Repair 5-4 2-8. Power Cable 2-15-24. Adjustments 5-4 2-11. 230-Volt Operation 2-15-26. Preliminary Checks 5-4 2-13. Repacking for Shipment 2-15-31. Calibration 5-4 5-37. Distortion 5-7 SectionPage5-38. Output Voltage 5-7 III OPERATING INSTRUCTIONS 3-15-39. Performance Check 5-7 3-

9、1. Introduction 3-15-41. Output Impedance 5-7 3-3. Operation 3-15-42. Frequency Response 5-7 5-43. Dial Accuracy 5-7 SectionPage5-44. Distortion 5-8 IV THEORY OF OPERATION 4-1 4-1. General 4-1 SectionPage 4-4. Frequency-Controlling Bri111 :4-1 VIREPLACEABLE PARTS 6-1 4-9. Amplifier 4-16-1. Introduct

10、ion 6-1 4-11. Output Circuit 4-16-4. Ordering Information 6-1 6-7. Non-Listed Parts 6-1 Section V MAINTENANCE Page A PP E NDDC 5-1 5-1. Introduction 5-1 ACODE LIST OF MANUFACTURERS 5-3. Periodic Maintenance 5-5. Test Equipment 5-1 B 5-2 SALES AND SERVICE OFFICES 5-7. Troubleshooting 5-2 CMANUAL BACK

11、DATING CHANGES LIST OF ILLUSTRATIONS FigurePage FigurePage 1-1. Model 200CD Wide Range Oscilltor . . 1-1 5-3.Range Switch Detail 5-5 3-1. Controls and Terminals 3-0 5-4.Calibration Test Setup 5-6 3-2. Typical Output Connections 3-1 5-5.Alternate Calibration Setup 5-6 3-3. Balance Chart Operating Int

12、o5-6.Distortion Test Setup 5-7 600-Ohm Load 3-1 5-7.Bottom View Model 200CD 5-8 4-1. Model 200CD Block Diagram 4-0 5-8.Model 200CD Voltage and Resistance 5-1. Left Side View Model 200CD 5-1Diagram 5-9 5-2. Right Side View Model 200CD5-3 5-9.Model 200CD Schematic Diagram . . . .5-10 LIST OF TABLES Ta

13、blePage Table Page 1-1. Specifications 1-0 5-4. Frequency/Period Conversion 5-6 5-1. Test Instruments Requtred 5-0 5-5. Distortion Test Frequencies 5-8 5-2. Troubleshooting 5-2 6-1. Reference Designation Index 6-2 5-3. Tube Replacement List 5-3 6-2. Replaceable Parts 6-5 ,. 00084-4 til Section I Tab

14、le 1-1 Model 200CD Table 1-1, Specifications FREQUENCY RANGE:5 cps to 600 kc covered in five ranges RANGES: X15 cpsto60 cps X1050 cpsto600 cps X100500 cpsto6 kc X10005 kcto60 kc X1000050 kcto600 kc DIMENSIONS: WEIGHT: 2% including calibration error, warmup, changes dueto aging of compo- nents, tubes

15、, etc 6-inch diameter calibrated over 300 of arc. 85 divisions. Total scale length, 78 inches 1 db entire frequency range (reference 1 kc) 160 milliwatts (10 volts) into 600-ohm rated load, 20 volts opencircuit Better than 0. 1% at lower frequencies and approximately 1% at higher frequencies 600 ohm

16、s. Output is balanced to ground for zero attenuation. (May be operated with one side grounded if desired. ) 0. 2% from 20 cps to 200 kc; 0. 5% from 5 cps to 20 cps and from 200 kc to 600 kc Less than 0.1% of rated output; decreases as output is attenuated 115/230 volts 10%, 50-1000 cps, 90 watts (-f

17、) 11004A Une Matching Transformer (provides balanced output at any attenuator setting at 135 and 600 ohms) 11000A Cable Assembly, 44 in. long, terminated each end with dual banana plugs (4,-e) 11001A Cable Assembly, 45 in. long, with one dual banana plug and one BNC male connector Cabinet Mount: 7-3

18、/8 in. wide, 11-1/2 in. high. 14-3/8 in. deep. (187, 3 x 292, 1 x 365, 1 mm) Rack Mount: Cabinet Mount: Net, 22 lbs. (9,9 kg). Shipping, 27 lbs. (12, 2 Kg). Rack Mount: Net, 27 lbs. (12, 2 kg). Shipping, 37 lbs. (16.7 kg). ACCURACY: DIAL: FREQUENCY RESPONSE: OUTPUT: OUTPUT BALANCE: INTERNAL IMPEDANC

19、E: DISTORTION: HUM VOLTAGE: POWER: ACCESSORIES AVAILABLE: 1-0 00084-5 Model 200CD Section I Paragraphs 1-1 to 1-9 SECTION I ENERAL INFORMATION 1-1. DESCRIPTION. 1-2. The Model 200CD Wide Range Os ates frequencies of excellent waveform audio, and ultrasonic ranges (5 cycle five overlapping decade ban

20、ds). The M cludes new design features which resu performance than previous Hewlett-P ments. Special circuitry ensures ano low distortion and high stability with impedance from zero ohms to open ci ness of the oscillator has been extend the 200CD output circuit so that the i be operated balanced as w

21、ell as unb providing a 600-ohm impedance match 1-3. The Model 200CD is easy to oper and amplitude of the output voltage ar operating diais on the control panei. T 6-inch diameter frequency dial is calibr of arc, and has an effective scale len mately 80 inches. 1-4. The Model 200CD furnishes upto 600

22、-ohm load (20 volts open circuit) at from 5 cps to 600 kc. A bridged tee variable attenu- ator in the output circuit controls the output power. 1-5. The Mudei 200CD provides an ideal signal source for testing servo and vibrating systems, medical and geophysical equipment, audio amplifier circuits an

23、d transducers, sonar and supersonic apparatus, carrier telephone systems, video frequency circuits, and low radio-frequency equipment. 1-6. DIFFERENCES BETWEEN INSTRUMENTS. 1-7. Hewlett-Packard uses a two-section eight-digit serial number (000-00000). If the first three digits of the serial number o

24、n your instrument do not agree with those on the title page of this manual, change sheets supplied with the manual will define differences between your instrument and the Model 200CD de- scribed in this manual. 1-8. BACKDATING SHEET. 1-9. A backdating sheet that makes this manual appli- cable for in

25、struments with serial prefixes to 103, is provided in The Appendix of this manual. illator gener- n the subsonic, to 600 kc, in de1200CD in- t in still finer ckard instru- tput voltage of ny output load cuit. Useful- d by designing strument may lanced and by te: frequency set merely by e easily-read

26、, ted over 3000 th of approxi- 10 volts into a any frequency Figure 1-1. Model 200CD Wide Range Oscillator 00084-4 NOTES 00084-2 Model 200CD Section II Paragraphs 2-1 to 2-14 SECTION II PREPARATION FOR USE a 230-volt source is easily accomplished by recon- necting the dual 115-volt primary windings

27、of the power transformer from a parallel configuration to a series configuration. (See figure 5-9). At the time of the change, replace the 1.25 amp, slow-blow line fuse with a 0.6 amp, slow-blow Une fuse. 2-13. REPACKING FOR SHIPMENT. 2-14. The following list is a general guide for re- packaging an

28、instrument for shipment. If you have any questions, contact your authorized Hewlett-Packard sales and service office. See map in Appendix. If possible, use the original container designed for the instrument. Wrap the instrument in heavy paper or plastic before placing it in the shipping container. U

29、se plenty of packing material around all sides of the instrument and protect the panel with cardboard strips. Use heavy cardboard carton or wooden box to house the instrument and use heavy tape or metal bands to seal the container. e. Mark the packing box with Fragile, Delicate Instrument, etc. Note

30、 If the instrument isto be shipped to Hewlett- Packard Company for service or repair, at- tach to the instrument a tag identifying the owner and indicating the service or repair to be accomplished. In any correspondente be sure to identify the instrument by model num- ber, serial prefix, and serial

31、number. 2-1. INTRODUCTION. 2-2. This section contains informatio on unpacking, inspection, repacking, and installation o Model 200CD. 2-3. UNPACKING AND INSPEC ION. 2-4. Unpack the instrument upon rece pt and inspect it for signs of physical damage such as cratchedpanel surfaces, broken knobs, etc.

32、If there i any apparent damage, file a claim with the carrier a d refer to the warranty page in this manual. 2-5. An electrical inspection should be performed as soon as possible after receipt. To aid in electri- cal inspection a list of performance ch cks are given in section V, paragraph 5-39. The

33、 e procedures make a good test as part of incoming uality-control inspection. 2-6. POWER REQUIREMENTS. 2-7. The Model 200CD requires a power source of 115/230 volts +10%, 50/1000 cps, 75 atts. 2-8. POWER CABLE. 2-9. This Hewlett-Packard instrume t is equipped with a three-conductor power cable wh.ch

34、, when plug- ged finto an appropriate receptacle, irounds the in- strument. The offset pin on the power cable three- prong connector is the ground pin. 2-10. To preserve the protection feat ating instrument from a two-contact three-prong to two-prong adapter a pigtail on the adapter to ground. 2-11.

35、 230-VOLT OPERATION. 2-12, The Model 200CD is normally ation from a nominal115-volt supply. e when oper- outlet, use a d connect the red for oper- eration from 2-1 Section II Figure 3-1 Model 200CD O -, O N r. ; 1 /1 / / / O O N 12 14 /, / / / ,- - -, , .,.- %., - -. 41 O _ - - - -.: - - S) -./ v v

36、-Z-. -, O O s o9 X100 , 50 -4- -1/4- 41 r 6,0 o _, 2 , -0 e CO O ,II G60 O n o 11111111./ o ?-?4 tr44 o o _,O RANGEU O MP-S - 837 1.Turn on power to instrument.6. Select frequencyrange of operation. 2.Fuse on rear of instrument.7. Jumper for 600 ohm unbalanced output. 3.Glows when instrument is ener

37、gized.8. Balanced output terminals internal impedance equals 600 ohms. 4.Read frequency of operation multiplied by RANGE switch position.9. Adjust output voltage levei. Output balanced to ground only with amplitude control in full 5.Vernier, adjust frequency. clockwise position. Figure 3-1. Controls

38、 and Terminals 3-0 00084-3 6 00,11 G 600,(L To equipment being driven UNBALANCED OPERATION To equipment being driven BALANCED OPERATION RO MAXI MUM OUTPUll JESS THAN 1% UNBALANCE. MORE THAN 1%UNBALANGE.:1 Model 200CD Section III Paragraphs 3-1 to 3-10 SECTION III OPERATING INSTRUCTIONS 3-1. INTRODUC

39、TION. 3-2. This section contains operating instructions for the Model 200CD Wide Range Oscillator. Figure 3- 1 gives basic operating instructions. The remainder of this section supplements these instructions. 3-3. OPERATION. 3-4. ON. The oscillator is ready for use as received from the factory and w

40、ill give specifiei performance after a short warmup period. Turn oscillator on and allow approximately five minutes to warm up. Where maximum accuracy is desired, this warm-up period should be extended to at least thirty minutes. 3-5. RANGE. The RANGE is selected with the five position RANGE switch.

41、 The position of this switch indicates the multiplying factor for the frequency dial calibration. 3-6. FREQUENCY dial. The frequency dial varies the frequency between the RANGE switch steps. The dial is calibrated from 5 to 60 and its indication multi- plied bythe factor indicated bythe RANGE switch

42、will give the actual output frequency of the oscillator. The small knob below the frequency dial is a vernier con- trol for the dial. 3-7. OUTPUT CIRCUIT OPTIONS. The output cir- cuit of the Model 200CD maybe arranged for balanced or unbalanced operation. Typical connections for each are indicated i

43、n figure 3-2. a. Unbalanced Operation. To operate with side grounded, a strap is placed between :he G terminal, as indicated in figure 3-2A. Figure 3-2. Typical Output Connections b. Balanced Operation. Connections for balanced operation are indicated in figure 3-2B. (The broken line from the ground

44、 terminal indicates the output circuit is balanced to ground, within the tolerantes given below. ) 3-8. The AMPLITUDE control in the output circuit is a bridged-T attenuator and at any setting except minimum attenuation unbalances the circuit. There- fore, for balanced operation the AMPLITUDE contro

45、l must be set for maximum output (full clockwise). Out- put balance also is a function of frequency because of capacitive feed-through at higher frequencies. Up to 10 kc, however, unbalance is less than 0. 1%, and at 600 kc is approximately 1%. If small outputs are de- sired, or if balance at higher

46、 frequencies is critical, turn the AMPLITUDE control maximum clockwise, and connect an externai attenuator, designed for the fre- quencies involved, between the Model 200CD and the load. 3-9. A balanced output may also be obtained over the full range of the AMPLITUDE control by using an AC-60A/B Lin

47、e Matching Transformer at the output terminals of the oscillator. 3-10. The following chart indicates the area where within 1% of balance may be obtained. This chart in- dicates balance obtainable at various settings of the AMPLITUDE control when operating into a 600-ohm load. Where other values of

48、load are used, the chart does not apply directly but does apply for settings of the AMPLITUDE control that would produce the in- dicated voltage across at 600-ohm load. 10 100 l000 101c 100KC 800 KC FREQUENCY RO Figure 3-3. Balance Chart Operating into 600-ohm Load 12 _J 10 o o c0 B CD AMPLIT LIDEI 200 038 200 R96 R47 620 620 R398 256 CD/ C13 A -L_C13 C13 C 108F 10,./F 10pF O CD R43 220 SI F o Model 200CDSection V Paragraphs 6-1 to 6-7 SECTION VI REPLACEABLE PARTS 6-1.INTRODUCTION. 6-3. Miscellaneous parts are listed at the end of 6-2.This section