HP-130B-BR-Manual 电路图.pdf

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1、I . : HP Archive . . This vintage Hewlett Packard document was preserved and distributed by www. Please visit us on the web ! . . On-line curator: Tony Gerbic RadioFans.CN 收音机爱 好者资料库 OPERATING AND SERVICE MANUAL MODEL 13OB/BR SERIALS PREFIXED: 201 OSCILLOSCOPE Copyright HEWLETT-PACKARD COMPANY 1959

2、1501 PAGE MILL ROAD, PAL0 ALTO, CALIFORNIA, U. S. A. ) 00013-3 Printed: JAN 1862 RadioFans.CN 收音机爱 好者资料库 Model 130B TABLE OF CONTENTS Table of Contents List of Illustrations ) Section Page I GENERAL DESCRIPTION . 1-1 1 . 1 . General . . . . . . . . . . . . . . . 1 . 1 1.2 . Damage in Transit . 1-1 1

3、.3 . Power Line Voltages . . . . . . . 1 . 1 1.4 . Power Cord . . . . . . . . . . . . 1-1 1.5 . Installation of Rack Mount . 1-1 1.6 . Cathode Ray Tube Warranty . 1-2 I1 OPERATINGINSTRUCTIONS . 2-1 2.1 . Controls and Terminals . . . . . . 2-1 2.2 . Rear-Access Terminals . 2-1 2.3 . Warm-up Drift . 2

4、-1 2.4 . AC or DC Coupling . . . . . . . . 2-2 2.5 . Balanced Inputs . 2-2 2.6 . Operating Procedures . . . . . . . 2-2 111 THEORY OF OPERATION . . . . . . . . 3-1 3- 1 . General Content . . . . . . . . . . 3- 1 3.2 . Over-All Operation . . . . . . . . 3-1 3.3 . Vertical Amplification Channel . . 3-

5、1 3.4 . Horizontal Amplification Channel . 3-2 3.5 . Sweep Generator . . . . . . . . . 3-2 3.6 . Low Voltage Power Supply . . . . 3-3 Section Page 111 THEORY OF OPERATION (contd) 3.7 . High Voltage Power Supply . . . . 3-4 3.8 . Calibrator . . . . . . . . . . . . . 3-4 IV MAINTENANCE . . . . . . . .

6、 . . . . . 4- 1 . Introduction . . . . . . . . . . . . 4.2 . Simple Check Procedure . . . . . 4.3 . Removing the Cabinet . . . . . . . 4.4 . Isolating Troubles to Major Sections . 4.5 . Connecting for 230Volt Operation . 4.6 . Tube Replacement . . . . . . . . 4.7 . Condensed Test and Adjustment Proc

7、edures . . . . . . . . . . 4.8 . Adjustment Procedure . 4.9 . Turn On . 4- 10 . Power Supplies . 4.11 . ReplacingandAdjustingthe CRT . . 4.12 . Checking and Adjusting the Calibrator . . . . . . . . . . . 4.13 . Adjusting the Vertical Amplifier . 4- 14 . Adjusting the Horizontal Amplifier 4.15 . Phas

8、e Shift Adjust . 4.16 . Adjusting Preset . . . . . . . . . 4.16 . Adjusting the Sawtooth Generator and Sweep Amplifier . 4-1 4-1 4-1 4-3 4-3 4-3 4-4 4-5 4-9 4-9 4-9 4-11 4-13 4-13 4-15 4-15 4-17 4-17 LIST OF ILLUSTRATIONS 1 Number Page 1.1 . Model 130B/BR Oscilloscope . . . . . 1-0 1 . 2 . 1 . 2 1.3

9、 . Model 130BR Installation . . . . . . . . 1-3 / Cathode Ray Tube Warranty . . . . . . 2.1 . 2.2 . 2.3 . 2.4 . 2.5 . 2.6 . 2.7 . 2.8 . 2.9 . Operating Controls and Terminals . . . Vertical Balance Adjustment . 2-3 Horizontal Balance Adjustment . . . . 2-4 Internal Synchronization . . . . . . . 2-5

10、External Synchronization . . . . . 2-6 External Horizontal Input . 2-7 AC Coupling Balanced Input . External Intensity Modulation . . . . . 2-10 2-0 Internal Sweep. Internal Sweep. 2-8 Connection to CRT Deflection Plates . . 2-9 Number Page 4.5 . Vertical Amplifier Adjustment Locations . 4-12 4.6 .

11、Horizontal Amplifier Adjustment Locations . 4-14 4.7 . SweepGenerator Adjustment Locations . 4-16 4.8 . Vertical Amplifier. Voltage Resistance Diagram . . . . . 4-20 4.9 . Vertical Amplifier. Schematic . . . . . 4-21 4.10 . Horizontal Amplifier. Voltage Resistance Diagram . . . . . 4-22 4.11 . Horiz

12、ontal Amplifier. Schematic . 4-23 4.12 . Sweep Generator. Voltage Resistance Diagram . . . . . 4-24 4.13 . Sweep Generator. Schematic . 4-25 4.14 . Sweep Time/CM Switch . . . . . . . . . 4-26 Voltage Resistance Diagram . . . . . 4-27 4.2 . Line Voltage Connection . . . . . . . 4-4 Schematic Diagram

13、4-29 2.10 . Aligning ScopeTracewithGraticule . . 2-11 4.15 . Power Supply Regulator. 4.1 . Location Diagram for Major Circuits . 4-2 4.17 . Filament and Primary Detail. 4.3 . Power Supply Location Diagram . . . . 4-8 4.18 . Sweep Time/CM Switch. 4.4 . Servicing Etched Circuit Boards . . . . 3 . 1 .

14、130B Diagram . . . . . . 3-0 4.16 . Power Supply. Schematic . . . . . . . . 4-28 . . . . . . . . . . Assembly Diagram . . . . . . . . . . 4-30 LIST OF TABLES 4.1 . Condensed Test and Adjustment 4.3 . Regulated Power SupplyTolerances . . 4-9 Procedures . 4-6 5.1 . Reference Designator . . . . . . . .

15、 . . 5-2 4.2 . Tube Replacement Chart . . . . . . . . 4-7 5.2 . Table of Replaceable Parts . . . . . . . 5-13 00013-2 iii i / RadioFans.CN 收音机爱 好者资料库 Model 130B SPECIFICATIONS SWEEP Sweep Range: 0.2 ,usec/cm to at least 12.5 sec/cm. 21 cal- ibrated sweeps, accurate within fs%, in a 1-2-5-10 sequence

16、, 1 ,usec/cm to 5 sec/cm. Vernier permits continuous adjustment of sweep time between calibrated steps and extends slowest sweep time to at least 12.5 sec/cm. Magnifier: X5 Magnifier may be used on all ranges and expands fastest sweep to 0.2 pec/cm. Ac- curacy within 10%. Phase Shift: Within f lo re

17、lative phase shift at frequencies up to 50 kc between vertical and horizontal amp- lifiers with verniers in cal. Stability: 1 mv/hr after warmup. Bandwidth DC Coupling: dc to 300 kc. AC Coupling: 2 cps to 300 kc. Specified bandwidth is independent of sensitivity setting. Balanced Input: On 1,2,5,10,

18、20 and 50 mv/cm ranges. Cabinet Mount input impedance: megohms shunted with approximately 25 pf. Rack Mount input shunt capacity. Disconnecting the wires at the Synchronization: Internally from line voltage or from signals causing 1/2 centimeter or more vertical deflec- or more. Trigger Point: tion.

19、 from 5 Peakmto-peak impedance 2 megohms, approximately 125 pf Continuously adjustable from approximately -30 to +30 volts on either positive or negative slope of external synchronizing signal, or from any point of the vertical signal presented on the screen. Preset Triggering: Switch position on sw

20、eep mode control selects optimum setting for automatic triggering. INPUT AMPLIFIERS Vertical and horizontal amulifier s have same characteristics. Sensitivity: 1 mv/cm to at least 125 v/cm. 15 calibrated ranges, accurate within *5%, in a 1-2-5-10 sequence, 1 mv/cm to 50 v/cm. Vernier per- mits conti

21、nuous adjustment between ranges and decreases sensitivity of 50 v/cm range to at least 125 volts/cm. Input voltage rating 600 volts dc or rms. front panel which connect to the rear terminals reduces the input capacity to approximately 25 pf. Common Signal Rejection: (Balanced input only): Rejection

22、at least 40 db. not exceed 1.5 volts. Common signal must Single Ended Input: Cabinet Mount input impedance: 1 megohm shunted with approximately 50 pf. Rack Mount input impedance: 1 megohm, approximately 200 pf shunt capacity. Disconnecting the wires at the front panel connecting to the rear terminal

23、s reduces the input capacity to approximately 50 pf. 300 millivolts peak-to-peak f 2%, 300 cycles squarewave applied to vertical or horizontal amplifiers by CAL position of input attenuators. Internal Calibrator: iv 00013-2 Model 130B SPECIFICATIONS (CONTD.) GENERAL External Graticule (Standard): Ed

24、ge lighted graticule with controlled illumina- tion, 10 cm x 10 cm, marked in centimeter squares with 2 mm subdivisions, on major hori- zontal and vertical axes. Internal Graticule (Optional): 10 cm x 10 cm, major horizontal. CRT Plates: Direct connection to deflection plates via ter- minals on rear

25、. Sensitivity approximately 20 volts/cm. Terminals on rear; 20 volts positive signal blanks CRT at normal intensity. Intensity Modulation: Dimensions: Cabinet Mount: 9-3/4 in. wide, 15 in. high, 21-1/4 in. deep. Rack Mount: TOP - 1 - 1 9 - 1 Ik 6 130 BR Weight: Cabinet Mount: Net 41 lbs, shipping 54

26、 lbs. Rack Mount: Net 47 lbs, shipping 62 lbs. Cathode Ray Tube: 5 AQP mono-accelerator flat face type with 3000 volt accelerating potential. Available with P1, P2, P7 or P11 screen. Power Supply: 115/230 volts lo%, 50/1000 cycles, 160 watts. Filter Supplied: Color of filter compatible with screen p

27、hosphor. Green for P1 and P2, Amber for P7, Blue for P11. Rack Mount: Has rear terminals in parallel with front panel. connections. Accessories Furnished: Supplied with Rack Mount. 130B-12P and Q Mounting Brackets (pair). Two 125-57 Plugs (mate with rear terminals). Two 125-59 Clamps for 125-57 Plug

28、s. Accessories Available: AC-83A Viewing Hood; face-fitting molded rubber. Price $5.00. Additional Mounting Brackets. 130B-12P (left) and 130B-12Q (right); $2.50 a pair. Price: Model 130B, Cabinet Mount: $650.00 Model 130BR, Rack Mount: $650.00 Opt ions : 2. P-2 CRT (installed) 3. Internal graticule

29、 CRT (installed) 7. P - 7 CRT (installed) 11. P-11 CRT (installed) i J 00013-2 V Sect. I Page0 Figure 1-1. Model 13OB/BR Oscilloscope Model 130B ) ,I 00013-2 Model 130B Sect.1 Page 1 1-1 GENERAL The Hewlett-Packard Model 130B Oscilloscope is a general purpose oscilloscope. it can be used with either

30、 internal or external sweeps which can be either internally or externally synchronized and it can be obtained in either the cabinet or rack type mounting. Because of its high sensitivity and balanced input, the Model 130B may often be used directly with transducers, enabling you to see a direct pres

31、entation of phenomena desired without having to resort to preamplifiers. Some of the special features of this oscilloscope are as follows: A. LINEAR INTEGRATOR SWEEP GENERATOR The accurate direct reading sweeps are ob- tained from a Miller-integrator sweep circuit which insures a high order linearit

32、y and stability. This type of sweep generator, is more reliable and independent of tube characteristics than other types of sweep generator. B. X5 SWEEP EXPANSION You speed observation and analysis of tran- sients by expanding a two centimeter segment of the trace to 10 centimeters for easy viewing

33、of detail. This X5 sweep expander, may be used on all sweep time settings and expands the fastest sweep time to .2 microsecond/cm. C. CALIBRATED AMPLIFIERS Voltage measurements of various waveforms are quickly made with the 130B, accurate within *5%. A built-in calibrator which is accurate with- in

34、*2% permits quick verification and standard- ization of the amplifier gain. Phase shift measurements can be made accurately with this oscilloscope over a wide range of input frequencies. 00013-2 i SECTION I GENERAL DESCRIPTION 1-2 DAMAGE IN TRANSIT This instrument should be thoroughly inspected when

35、 it is received. If any damage is evident, refer to the “Claim for Damage in Shipment” para- graph on the Warranty sheet in this manual. 1-3 POWER LINE VOLTAGES The Oscilloscope is shipped from the factory wired for 115 volts ac line operation, unless otherwise specified. However, the instrument may

36、 also be operated from a 230 voIts ac line source if the proper conversion is made to the power transformer. This conversion is described in the Maintenance Section (Section IV). 1-4 POWER CORD The three conductor power cable supplied with the instrument is terminated in a polarized three prong male

37、 connector recommended by the National Electrical Manufacturers Association. The third contact is an offset round pin, added to a standard two-blade ac plug, which grounds the instrument chassis when used with the appropriate receptacle. An adapter should be used to connect the NEMA plug to a standa

38、rd two contact output. When the adapter is used, the ground connection becomes a short lead from the adapter which should be con- nected to a suitable ground for the protection of operating personnel. 1-5 INSTALLATION OF RACK M O U N T The 130BR is designed so that it can be sup- ported in a 19 inch

39、 rack by the front panel in the usual manner; or, the dust cover may be rigidly mounted in the rack with brackets as shown in Figure 1-1. In the latter case, the chassis is supported by the dust cover and may be slipped in Sect. I Page 2 Model 130B or out easily; the screws through the front panel m

40、erely holding the chassis in place. To rack mount the 130BR using the brackets: 1) Mount the bracket as shown in Figure 1-3 with screws through the outside holes of the brackets. The length of these screws may be chosen to space the front panel from the panel rails as desired. The brackets at the re

41、ar are notnecessaryin most installations but can be used if added support is required. These brackets are available from the Hewlett-Packard Company as an accessory item. 2) Remove the dust cover from the 130BR and mount it in the brackets with the 10-32 trusshead screws provided. 3) Slip the 130BR

42、into the dust cover and fasten in place with screws through the front panel. 1-6 CATHODE RAY TUBE WARRANTY The cathode ray tube (crt) supplied with the oscil- loscope and replacement crt s purchased from Hewlett-Packard company are guaranteed against electrical failure for one year from the date of

43、sale by Hewlett-Packard. Cathode Ray Tube Warranty sheet is illustrated in figure 1-2. A sheet for your use is included in the appendix of this manual. CATHODf RAY TUB1 WARRANTY The cathode ray tube supplied In your Hnvlett-Packud Oselllodeope nnd replacement c s W a n y bbes prchased from 9 are -ra

44、nteed agllmt electrical failure for one year from the date 01 sale by theHewlett-PackrdCompany. Broken bbes or tubes withtmrned phosphor are not Included ln this guarantee. You? local Hewletl-Packard representative maintalna a stock of replacementtubes and wlll kt glad to process your warnnty clalm

45、for you. Please conwl1 him. Whenever a bbe is returned for L warranty claim the reverse slde o f this sheet must be filled oui in full and returned with the tube. Follawshi B side conducting, A side cut off. Due to regenerative action the change-over from one state to the other is very rapid, produc

46、ing fast rise and decay times in the square-wave output. The levels at which the change-over takes place (hysteresis limits) can be adjusted to be close together as in the Trig- ger Generator (V202) or widely spaced as in the Start-Stop Trigger (V203). To trigger the circuit, the A side grid voltage

47、 must cross a particular hysteresis limit to change the state of the circuit. For example, if the A side is conducting, driving the grid voltage positive through the upper hys- teresis limit will have no effect, but driving the grid voltage negative through the lower hysteresis limit will put the A

48、side out of conduction and B side into conduction. B. SAWTOOTH GENERATOR The Sawtooth Generator consists of Start- Stop Trigger (V203), and Integrator Switch (V205), a Feedback Integrator (V206B), and Integrator Cathode Follower (V206A), and a Retriggering Hold-Off Cathode Follower (V207B). Start-Stop Trigger (V203). a Schmitt trigger cir- cuit, is fed by Trigger Generator (V202). The square wave output of V203 is fed directly to the Integrator Switch (V205), which in turn controls the action of Feedback Integrator (V206B). When V203 produces a n