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Operation

Model

3-48 SINGLE FREQUENCY INTERFERENCE

frequency interference refers

unwanted steady tones which may appear in lines.

bursts of low level tones which may occur from crosstalk of multifrequency signalling, for

do not fall in this category. Single frequency tones may interfere with certain data signals,

particularly narrowband signals which are multiplexed onto a voiceband channel.

usually detect this

since

are easily

noise is within limits,

single frequency interference

with

setup shown in

the received noise signal passes through

signal is applied to

operator

may indicate a single

single frequency tone (or tones) of long duration is heard, single frequency interference may be

and should be measured. To determine the frequency and level of the interfering tone, a frequency

selective volt meter or spectrum analyzer must

used. Single frequency interference during a C-message

filter

occurs if the signal is

or less below the

noise limits.

3-52.

IMPULSE NOISE

S-level Impulse Noise Mode measures one of the most important transient phenomena.

phenomena can cause data transmission errors and/or interruptions to datacom systems.

Impulse noise is that component of

received noise signal which is much greater in amplitude

than

normal peaks of the message circuit noise. It occurs as short duration spikes and/or bursts of

Studies by Hell Telephone laboratories have shown that impulse noise spikes have a duration of less

than

millisecond, and that all significant effects of the noise spike disappear within four milliseconds.

Waveform

in Figure

illustrates a received holding tone (or test signal) that includes interfering

impulse

spikes. The impulse noise measurement counts the number of noise spikes above a selected

threshold

during a specified time period.

TRANSMITTED

HOLDING TONE

RECEIVED

HOLDING TONE

WITH IMPULSE

NOISE SPIKES

TIME

Figure 3-13. Impulse Noise Waveform Representation

Содержание 4935A

Страница 1: ...ffort to help you support your product This manual provides the best information we could find It may be incomplete or contain dated information and the scan quality may not be ideal If we find a better copy in the future we will add it to the Agilent website Support for Your Product Agilent no longer sells or supports this product You will find any other available product information on the Agile...

Страница 2: ...applies to instruments with serial numbers prefixed 2846A Copyright Hewlett Packard Co Colorado Telecommunications Division 1987 5070 Centennial Blvd P O Box 7050 Colorado Springs Colorado 80933 ALL RIGHTS RESERVED Manual Part No 04935 90029 Printed Nov 1966 Microfiche Part No 0493598804 Printed in U S A ...

Страница 3: ...f the hazard involved Make sure that only fuses with the required rated current and of the specified type normal blow time delay etc are used for replacement The use of repaired fuses and the short circuiting of fuse holders must be avoided Capacitors inside the instrument may still be charged even if the instrument has been disconnected from its source of SUPPlY Whenever It is likely that the pro...

Страница 4: ...Z Hertz IEC 1174 symbol No 365 z Contactor normally closed In order to avold confusion with the symbol for a capacitor the deance between the horizontal as drawn here lines should be at least equal to the length of those lines IEC 117 3 symbol No 215 21 In addltlon the following describes the use of Warmngs Cautions and Notes used in HP Automatic Test System Manuals Warnings cautions and notes All...

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Страница 6: ... 14 Transmitter Flatness at 40dBm 4 4 4 15 Receiver Accuracy at t 1ldBm 4OdBm 4 8 4 16 Autorange Test 4 10 4 17 Filter Tests 4 11 4 18 Impulse Noise DAC Test 4 14 4 19 Count Limit Test 4 16 4 20 Termination Impedance Test 4 17 4 21 Hold Tone Dropout Detector Test 4 19 4 22 Hold Circuit Test 4 20 4 23 Distortion T e s t 4 21 4 24 P AR Test 4 25 4 25 Noise to Ground Std dc Opt 001 4 26 V ADJUSTMENTS...

Страница 7: ...a 16 8 80 Input Select Notch Filter 25 dB Amp 8 17 8 85 Noise Filter Circuitry 8 17 8 97 Level Detectors 8 19 8 100 Impulse Noise Detectors 8 19 8 102 Transmitter 8 19 8 104 T e s t Signal Generation Method 8 20 811 3 Circuit Description 8 21 8 126 Power Supply Theory 8 23 8 128 AC Line Supplies 8 23 8 131 Regulators 8 24 8 139 Charger Board Theory of Operation 8 25 8 141 Battery Charging 8 26 8 1...

Страница 8: ...ry AC and Low Voltage 8 54 8 263 Delay and Relay Drive Circuitry 8 54 8 265 AC and Low Voltage Inhibit Troubleshooting 8 55 8 267 Service Aids 8 57 8 268 Service Selection of Input Notch Filter 25dB Amp 8 57 8 270 Procedure 8 57 8 272 Service Selection of Noise Filters b y Hand 8 58 8 274 Procedure 8 58 8 276 Service Selection of Autorange Gain for Service 8 58 8 278 Procedure 8 58 8 279 Hand Sele...

Страница 9: ... 40 dBm 4 8 4 4 Autorangc Test 4 10 4 5 Filter Tests 4 11 4 6 Impulse Noise DAC T e s t 4 14 4 7 Count Limit Test 4 16 4 8 Termination Impedance Test 4 17 4 9 Hold Tone Dropout Detector Test 4 19 4 10 Hold Xrcuit Test 4 20 4 11 Distortion Test 4 21 4 12 40 dBm Distortion Test 4 22 4 13 Filter Circuits 4 23 4 14 P AR Test 4 25 4 15 Noise to Ground Test 4 26 7 l A2 Switch Board Component Locator 7 1...

Страница 10: ...ram 8 23 8 14 Charger Board Block Diagram 8 25 8 17 Instrument Troubleshooting 8 32 8 18 Stair Step Sinewave 8 39 8 19 P AR Signal Frequency Spectrum 8 41 8 20 P AR Transmit Signal Envelope 8 42 8 21 20 Hz Waveform 8 43 8 22 Transmit Monitor Test Output 8 44 8 23 4935A Signal Flow Block Diagram 8 67 8 24 Al Front Panel Schematic Diagram 8 69 8 25 A2 Switchboard Component Locator 8 70 8 26 A2 Switc...

Страница 11: ...erence Designation and Abbreviations 6 2 Manufacturer Code List 6 8 Replaceable Parts 6 9 8 l Measurements Summary 8 3 8 2 Noise Amplification 8 5 8 3 Reference Signatures 8 38 8 4 Wideband Filter Response S 40 8 5 5 kHz Low Pass Filter Response 8 40 8 6 Output Select MUX 8 41 8 7 Transmit Monitor Test 8 43 8 8 A3UlB Voltages 8 51 8 9 TP3 Voltages 8 51 S 10 Hand Selection of Noise Filters 8 58 8 1...

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Страница 13: ... hctral Inii rmi ti Model 4935A Figure f 1 Model 4935A f ransnhdon Impairment Measuring set ...

Страница 14: ... procedures SECTION VI REPLACEARLE PARTS Lists and identifies the instrument assemblies and replaceable parts SEXTION VII MANUAL CHANGES Cor ams information to backdate the manual for t instruments with earlier serial numbers SECTION VIII SERVICE Includes theory of operation troubleshooting procedures flowcharts component locators and schematic diagrams 1 3 GENERAL DESCRIPTION l 4 HI Model 49XA is...

Страница 15: ...EQUENCY Hz _ 30 Hz 100 Hz 4k IlOk At 1004 Hz 0 dBm THD using a 4 kHz filter is more than 65 dB down from the fundamental Message Circuit Noise Transmitter is quiet terminated Level Range _ 6Oto 13dBm Resolution 0 1 dB Accuracy in dl3 FREQUENCY Hz 20 50 200 15k 60k 85k 1 IOk z 13 5 Q 40 K s 3 60 Receiver accuracy not specified below 500 Hz when using 13562 termination At 1004 kHz accuracy is fO l d...

Страница 16: ...h Filter See Noise with Tone Threshold Ranges 6OOfi Low 30 to 109 dBrn Mid High 4 dB above Low to a maximum of 109 dBrn 8 dB above Low to a maximum of 109 dBrn Loss of Holding Tone Indication Minus sign Threshold Accuracy above 40 dBrnl 1 dB Count Timer 5 15 60 min or non stop Count Range O 9999 for each threshold Count Rate 8per sec Noise to Ground Range 600R and 9OOfi 50 to 130 dBrn Resolution 1...

Страница 17: ...t c ont it t thus tlta lrtsst t It u l tt at kartl Sales antI Servit ta Of fit listed at the r ar of this manual 1 16 OPTIONS AND ACCESSORIES I eon 002 Adds 1 Al I ta ik Avrragts Ratio mr lsurt mrnt in Plato of Nois to round I I Itlstrumr nt warranty is as listctl on thth insidtx of the f ront c ovt r Hattc ry warranty is 90 days 1 21 RECOMMENDED TEST EQUIPMENT l 22 tit t rnmc ntlt tl ttsst tquipm...

Страница 18: ...3466A I PAT DUAL OUTPUT POWER SUPPLY 12AND 12 OTO0 2A HP 6234A DUAL RANGE DC POWER SUPPLY OdOVdc 0 TO 0 2A HP 6218A PAT AUDIO ANALYZER INPUT VOLTAGE RANGE 50mV 300V BANDWIDTH 500kHz FILTER 3OkHz HP 8903A P COUNTER RANGE AC COUPLED 30Hz TO 100MHz SENSITIVITY 1 OmV TO 1 OOMHz HP 5315A P PERFORMANCE TESTS A ADJUSTMENTS T TROUBLESHOOTING Table 1 3 List of Parts Used for Performance Tests PART NUMBER I...

Страница 19: ...hours I 28 The batteries may be charged at temperatures between 5 C and 4O C 41 F and 104 F but have greater charge capacity if charged between 5 C and 25 C 41 F and 77 F At temperatures above 25 C the chargeacceptance falls off as shown in Figure 1 2 For example a cell charged at 45 C accepts about 60 70 s of its rated capacity Temperatures below 5 C cause pressure to build up within the cell as ...

Страница 20: ...rument to an AC power source be sure that the rear panel line module is set to the szme voltage as the AC so_urce and that the correct fuse for that AC voltage is installedk BiAmp for 120 Vac Q Amp for 220 Vat I A SC 2 7 POWER REOlJlk lENTS 2 8 This instrument requires a power source of 100 120 220 or 240 Vat 5 lo 48 to 66 Hz single phase Power consumption is no more than 25 Vat 2 9 LINE VOLTAGE S...

Страница 21: ... material used in factory packaging can be obtained through Hewlett Packard sales and service offices listed at the rear of this manual If the instrument is returned to HP for repair attach a tag listing the type of service or repair needed Include return address model number option number if applicable and complete serial number Also mark the container FRAGILE to ensure careful handling In any le...

Страница 22: ...lOl 1 79 Gray Swtrerland 1959 24507 Type 12 250V 8 1 2 0 0 6 9 8 6 Slralght NEMAG 15P United States Canada 8 1 2 0 1 9 5 7 2 Straight DHCK 1117 79 8120 2956 3 90 79 Gray Gray Denmark 250V 8 1 2 0 1 8 6 0 6 Straight CEE22 I 6yslernsCablner use c i 250V 8 1 2 0 4 6 0 0 8 StralrJhl BS 5461SABS 1 6 4 98 8120 4211 7 90 9 8 Black Black Part number shown for plug IS Industry ldentlflerfor pluq only Num x...

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Страница 24: ...self check Errors 7 and 8 highlight problems during a particbular measurement Other indications of errors during measurement are described by the particular measurc mc nt After startup self check the instrument automatically goes into Transmit Mode IXVEI FREI UF N Y en if error messages occur the instrument continues to operate correctly except for those measuremrnts affected hy the displayed erro...

Страница 25: ...Model 4935A I 0 5 Figure 3 1 Front and Rear Panel Controls Connectors Indicators ...

Страница 26: ...ects the hold circuits to the TRMT RCV 310 jacks to hold dial up lines RCV 13512 60011 90012 Provides terminating impedance to match the lines characteristic impedance I Connects the RCV TRMT 310 jack through high impedance when the 49 I5A bridges the circuit under test instead of terminating the line HOLD Connects the receive hold circuits to the RCV TRMT 310 jack to hold the dial up lines I ISI ...

Страница 27: ...l E 2 F J or P4 keys The STORE function is also used to change the SF SKIP Frequency 12 IMPULSE NOISE Section Impulse Noise controls are used in KCV and in conjunction with the MEASUREMENT section IMPULSE NOISE mode Four keys control this section PERIOD Fl 404 DlSPLAY F2 1004 START RESET F3 2804 STOP F4 2713 PERIOD Sets the instrument timer for the impulse noise test 5 MIN 15 MIN 60 MIN or NON STO...

Страница 28: ... continuou ly from 40 dBm to 13 dBm Output level is displayed on left display 14 MONITOR VOLUME Control and Speaker Permits adjustable volume for listening to the cirl uit under test or to the Test Set Transmitter Figure 3 I Front and Rear Panel Controlv Connectors Indicators Continued ...

Страница 29: ...n battery and A C power cycle the POWER button from STBY to ON again NOTE Proper care in charging and discharging NiCad batteries can dramatically improve their lives Consult Section I of this manual for recommended procedures SET UP Connect circuit to 310 jacks Do not connect more than BOOVDC or 10 Vrms at 60 Hz to these jacks 1 I rcss in the NOR button to connect the left 310 jack to the transmi...

Страница 30: ...he line from the test set first to avoid dropping the circuit during the storage procedure d Turn OUTPUT 1 EVEL knob to adjust the level of the transmitted signal to I ATA IXVEI I ATA IXVEI is usually I dR below the transmission level point TI P A sign indicates the level is tl dHm A sign indicates the level is 40 dHm f Use the STEP UP and STEP DOWN keys to set the desired frequency or press Fl F2...

Страница 31: ...sign indicates received level is 78 dRm d LEVEL ZERO For attenuation distortion measurements press LEVEL ZERO key to set the received level at 0 dB All subsequent level measurements will be made relative to this point Pressing the LEVEL ZERO key a second time reverts the level to absolute units dBm instead of relative units dB A negative reading indicates levels higher than the reference level per...

Страница 32: ...iguration the transmitter is turned off and a quiet termination is supplied to the TRMT jack NOISE RECEIVER a Press DISPLAY TRMT RCV key to display the received signal RCV light will be on b Press MEAS key to select NOISE C Press FILTER key to select the desired filter d Read the dBrn noise level in the left display A in the left display indicates underrange 0 dBrn Figure 3 2 Measurements Continue...

Страница 33: ...ld be in right display Turn OUTPIJ I 1 XVEI knob to adjust 1004 Hz signal to data level in left display usually 1 I dl3 below the transmission level point NOISE WITH TONE RECEIVER a Press MEAS key to select NOISE WITH TONE b Press DISPLAY TRMT RCV key to display the received signal RCV light will be on C Read dBrn in left display Note Err 7 in the right display indicates the received 1004 Hz tone ...

Страница 34: ...l usually 13 dB below the transmission level point SIGNAL TO NOISE RECEIVER a b c Press MEAS key to select SIGNAL TO NOISE Press DISPLAY TRMT RCV key to display the received signal RCV light will be on Read the Signal to Noise ratio as dB in the right display The received level is displayed in the left display Note Err 7 indicates the received 1004 Hz tone has dropped below 46 dBm or exceeded 13 d...

Страница 35: ...ght will be on Press FILTER key to select the same filter as the receiver will use Although the transmitted signal is not affected by the filter selecting either the 15 kHz FLAT PROGRAM or 50 kBit filter will quiet terminate the transmitter instead of sending a hold tone d l urn OIJTPIJT LEVEL knob to adjust the level to data level usually 13 dH below transmission level point Figure 3 2 Measuremen...

Страница 36: ... NON STOP s Press START RESET key to start the test The CNTNG LED by the right display will go on to indicate that the test is in progress Note that you can see how many counts have been accumulated at each threshold by pressing DISPLAY key When NON STOP is selected STOP must be pressed to stop counting g The left display shows threshold or minutes the right display shows the number ofcounts for t...

Страница 37: ... termination to the TRMT jack NOISE TO GROUND RECEIVER STANDARD UNIT and Option 001 For valid NOISE TO GROUND measurements the test set must be properly grounded Connect the rear panel chassis ground post to a known good ground a Press DISPLAY TRMT RCV KEY to display the received signal RCV light will be on I Press MEAS key to select NOISE TO GROUND c Use FILTER key to select the desired filter d ...

Страница 38: ... transmitted signal TRMT light will be on Press MEAS key to select P AR IJse OUTPUT LEVEL knob to adjust signal level to data level Maximum output for P AR is 3 dBm P AR RECEIVER Option 002 and 003 a b Press DISPLAY TRMT RCV key to display the received signal RCV light will be on Press MEAS key to select P AR Read P AR units in right display Figure 3 2 Measurements Continued ...

Страница 39: ...dial the remote end of the circuit 5 After the circuit is answered push the TRMT HOLD switch to hold the circuit 6 Push the TRMT DIAL switch again to release it This disengages the dial circuitry and allows testing 7 If the 4935A is designated the receive set press RCV HOLD switch and then push REV switch to connect RCV side to left 310 jack For 2 two wire circuits follow preceding steps 1 through...

Страница 40: ... direction ofthe test signal without physically changing thr test cables and potentially dropping the circuits I I hcs input and output impcdanccbs are the standard values of I S i 600 or 900 ohms The 49335A impcdanc e st lec ted must match the impedance of the circuit under test or erroneous measurements will be obta intd I l i I h h receive input may he internally terminated or bridged across th...

Страница 41: ... or gain of a 1000 Hz test tone transmitted over a voice channel To make this measurement a 1004 Hz test frequency is transmitted at the data level At the receiving 49335A the received loss or gain is measured in dHm 1 x1 The wakeup transmit frequency is actually 100 1 Hz not 1000 Hz to prevent errors over certain circuits This 4 Hz offset avoids measurement errors caused by test frequencies which...

Страница 42: ... 3 l 3 32 MESSAGE CIRCUIT NOISE MEASUREMENTS x i The message circuit noise measurements determine the effects of background noise and tones Figurtz 5 illustrates the basic setup for these measurements QUIET TERMINATION i TELEPHONECIRCUIT T TRMT TIMS I 1 RCV TIMS 1 LINE MONITOR Figure 3 5 Message Circuit Noise Measurements x4 The message circuit measurement is obtained by measuring the noise presen...

Страница 43: ...49 EA r r 10 0 10 m 0 2 20 s s 30 40 50 60 100 200 500 1000 2000 3000 5000 Figure 3 6 C Message Weighting Characteristic 50 6 100 200 500 1000 3000 4000 6000 Frequency Hz Figure 3 7 3 kHz Flat Weighting Characteristic ...

Страница 44: ...is also dcsigneti f or measuremc nts on program c hannrls I ike the 3 kHz flat filt clr 1t inc lutles low t requrncy noise in the measurr mc nt SW Figure I 0 I ht 50 kl it filtelr is dcsignrd to mt asurc wcightrtf noise on wide band data circuits sev b igurc S 101 g 30 w 40 cc 50 60 I I I I I II I I IJ 100 200 400 1000 2000 5000 FREQUENCY Hz Figure 3 8 Program Weighted Filter 0 I 10 Hz 100 Hz 1 kH...

Страница 45: ...At the receiving 4935A the 1004 Hz holding tone is selectively attenuated by 50 dB using a notch filter all frequencies between 995 Hz and 1025 Hz are attenuated by 50 dR The remaining received signal noise is passe l through a filter for measurement The received noise level is displayed in units of d n Figure 3 l 1 illustrates the combination of the message weighting and notch filter characterist...

Страница 46: ... 30 40 50 60 100 200 500 1000 2000 3000 5000 Figure 3 l 1 C Message Weighting with Notch Characteristic dBm 1004 Hz dBm I dB SIGNAL NOISE COMPARE 004H2 TELEPHONECIRCUIT SIGNAL NOISE S T N RATIO 10 LOG NOISE Figure 3 12 Signal to Noise Measurement ...

Страница 47: ...red To determine the frequency and level of the interfering tone a frequency selective volt meter or spectrum analyzer must be used Single frequency interference during a C message filter n c asurrmcnt occurs if the signal is 3 dB or less below the message noise limits 3 52 IMPULSE NOISE 5 The S level Impulse Noise Mode measures one of the most important transient phenomena Transtent phenomena can...

Страница 48: ... noise to ground N value from the measured message circuit noise N value This calculation is only valid if the measurements are made on a twisted pair and it is assumed that the message circuit noise is caused by longitudinal noise converted to message circuit noise by line imbalance It is recommended that both message circuit noise and noise to ground be measured with the 3 kHz flat weighted filt...

Страница 49: ...1 8 9 0 6 2 5 1 0 I 2 1 4 0 6 2 5 m J 2 3 9 0 6 2 5 3 K 2 6 4 0 6 2 5 2 20 L 2 8 9 0 6 2 5 r x M 3 1 4 0 6 2 5 fi N 3 3 9 0 6 2 5 10 0 3 6 4 0 6 2 5 P 3 8 9 0 6 2 5 40 5o A w BCDEFGHIJKLMNOP joo 2 0 0 0 3 0 0 0 Frequency Hz Figure 3 l 5 P AR Transmit Signal Frequency Spectrum 0 2 4 6 8 Time mSI Figure 3 16 P AR Transmit Signal Envelope ...

Страница 50: ... with only one instrument unlike envelope delay If the P AR signal were received entirely undistorted the R AR rating would be 100 while a circuit that causes a 10 reduction in the pea k to rveragc ratio has a P AK rating of 80 M2 I hc P AR measurement provides little information about the nature of the fault condition in any particular case However since P AR is a figure of merit for the channel ...

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Страница 52: ...arison in maintenance troubleshooting and following repairs and or adjustments 4 7 SELF CHECK 4 x Self check is automatically done each time the instrument is powered up Some circuits and filters arc tested in addition to all the front panel leds and seven segment displays 4 9 PERFORMANCE VERIFICATION 4 10 This instrument requires periodic performance verification Depending on use and operating en...

Страница 53: ...e 4 l I f3NC to banana cahlr 1 onnect Voltmeter to the 49 GA TRMT jack as shown in Figure 4 l f OWF R _ _ _ _ O N I ISI I AY _ _ TRM I SET 111 press in TRMT CiOOU MEASITREMEN I _ I EVEI E REQIJENCY 1 Stst t ht 49 i5A to 1004 Hz 4 A lj lst 49 l iA OIJ I I lJ l I E VEI until 2 4 35 Vrms 9 95 d n into 600 ohms appears on the L l limetrr notcx 4935A must be terminated as shown above 5 t1 a k the 49 GA...

Страница 54: ...FREQUENCY 20 Hz 200 Hz 5 kHz 15 kHz 30 kHr ACCEPTABLE VOLTAGE RANGE 2 17 to 2 73 Vrms 2 38 to 2 49 Vrms 2 38 to 2 49 Vrms 2 38 to 2 49 Vrms 2 30 to 2 58 Vrms 2 30 t o 2 58 Vrms 2 25 to 2 64 Vrms AHHREVIATEI TRANSMITTER FLATNESS AT 10 dBm TEST See the Abbreviated Transmitter Flatness Test 4 3 ...

Страница 55: ...ly to provide t 12 V to the t20 dH Amplifier ii st t hr AC Calibrator and the 49 EA to exactly 40 dRm as follows I Set the A Calibrator to 7 746 mV 40 dRm into 600 ohms at 1004 Hz with the output floating I onncct thta AC alibrator to the t20 dH amplifier input Record the amplifirr output voltage onnect the t20 dH amplifier input to thr 49XA TRMT 310 jack Monitor the 20 amplifier output with the v...

Страница 56: ...72 9 to 57 9 68 9 to 61 4 66 5 to 63 5 68 9 to 61 4 68 9 to 61 4 73 4 to 58 3 69 3 to 61 7 66 9 to 63 9 693to61 7 69 3 to 61 7 73 8 to 58 6 69 7 to 62 1 67 3 to 64 3 69 7 to 62 1 69 7 to 62 1 74 3 to 59 0 70 1 to 62 5 67 7 to 64 7 70 1 to 62 5 70 1 to 62 5 74 7 to 59 4 70 5 to 62 9 68 2 to 65 1 70 5 to 62 9 70 5 to 62 9 75 2 to 59 7 71 0 to 63 3 68 6 to 65 5 71 0 to 63 3 71 0 to 63 3 75 6 to 60 1 ...

Страница 57: ... to 76 8 91 8 to 72 9 86 6 to 77 2 8 3 7 t o 7 9 9 86 6 to 77 2 86 6 to 77 2 9 2 to 73 3 87 1 to 77 6 84 1 to 80 3 87 1 to 77 6 87 1 to 77 6 92 7 to 73 6 87 5 to 78 0 84 5 to 80 7 87 5 to 78 0 87 5 to 78 0 93 1 to 74 0 87 9 to 78 4 84 9 to 81 1 87 9 to 78 4 87 9 to 78 4 93 6 to 74 3 88 3 to 78 7 853to81 5 88 3 to 78 7 88 3 to 78 7 94 0 to 74 7 85 8 to 81 9 88 8 to 79 1 94 5 to 75 0 89 2 to 79 5 86...

Страница 58: ... TRMT 600 BRCi out DIAL 0111 both HOLDS out MEASLIREMENT LEVEL FREQUENCY 1 _ Se1 Ihe 4935A l o IOO4Hz 4 Adjust the OUTPUT LEVEL until 0 775V O dBm appcors on the Voltmctcr 5 Cheek the 4935A transmitter at the frcqucncics given in Table 4 3 Table 4 3 Abbreviated Transmitter Flatness VOLTAGES VRMS FREQUENCY MIN MAX 20 Hz 690 869 200 Hz 757 793 15 kHz 757 793 85 kHz 731 820 1lOkHz 652 920 4 7 ...

Страница 59: ...wn in Figure 4 4 2 Setup the 4935A as follows POWER I I ISI I AY L 1 REV SET 1JP M E A S U R E M E N T ON RCV press in press in RCV 6000 press in BRG LEVEL FREQUENCY RfiZ 151Vl2K A CIJRACY AT 11 dBm 1 Set 2 Calibrator output to 2 733 V 10 95 dBm into 600 ohms the0 05 dB offsetchecksfor round off errors in the 4935A 2 The 49XA level and frequency displays should be within the limits shown in Table ...

Страница 60: ...5 t o 1 1 4 4 0 5 to 3 9 6 k 01 kHz 85000 Hz 10 5 to 11 4 4 0 5 to 3 9 6 i 01 kHz 110000 Hz goto 1 2 9 42 0 to 38 1 i 01 kHz AHHRE VIATEl1 RECEIVER ACCURACY TEST 1 LJse the test setup shown in Figure 4 3 2 Stlt the AC Calibrator to 7791 V 0 05 dBm into 600 ohms Test the 4935A at each frequency given in Table 4 5 Table 4 5 Abbreviated Receiver Accuracy Test Table LEVEL FREQUENCY FREQUENCY 0 7791 V ...

Страница 61: ...P press RCV iOOf2 MEASI KEMENT I EVEI FREQIJENCY 2 St t he A alibrator to 1000 Hz i l clr tbach voltage and range in Table 4 6 check that the display is within acceptable limits Table 4 6 Autorange Test i A C CALIBRATOR V O L T A G E DISPLAY 86911 V 09to 11 086911 V 191 to 189 0086911 V 39 2 to 38 8 00086911 V 5 9 4 t o 586 2 7484 V 1 10 9 to 1 1 1 0 27484 V 9 1 t o 8 9 0 027484 V 292to 288 0 0027...

Страница 62: ...quipment as shown in Figure 4 5 2 Set AC Calibrator to 775 V 0 0 dBm across 600 ohms 3 On 4935A select POWER ON DISPLAY RCV SETUP RCV 60011 MEASUREMENT NOISE FILTER select according to test C MESSAGE FILTER 1 Select the C MESSAGE filter on 4935A 2 Check the response at each frequency in Table 4 7 The 4935A should be within the range given Table 4 7 C Message Filter Test FREQUENCY RECEIVED LEVEL dB...

Страница 63: ...the responsc at each frequency in Table 4 9 The 49XA display should 1 within tho range given Table 4 9 15 kHz Flat Filter Test FREQUENCY RECEIVED LEVEL dBrn in Hz ACCEPTABLE READINGS 1000 90 15000 86 88 30000 75 80 F RO RAM I II l ER TEST 1 S ct the PROGRAM filter on the 49XA 2 hrck the response at each frequency in Table 4 l 0 The 4935A display should be within the range given Table 4 10 Program ...

Страница 64: ...n in Hz ACCEPTABLE READINGS 1000 90 15000 89 90 25000 87 88 35000 84 86 50000 62 67 NOTCH FILTER TEST I Sclcct the I5 kHz Cltcr and NOISE WITH TONE mcasurcmcnt on the 4935A 2 Cheek the rcsponsc at each frcclucncy in Table 4 12 The 4935A should bc within the range given Table 4 12 Notch Filter Test FREQUENCY RECEIVED LEVEL dBrn in Hz ACCEPTABLE READINGS 400 90 862 288 1000 40 1020 40 1182 288 1700 ...

Страница 65: ...ft display adjust threshold to 90 d n Set AC L librator signal source to 2 kHz at the levels given in Table 4 l 3 start with 0 580 V The 4 5A should start counting K rise the 49 35A lL W THRESHOI I HY 1 dHrn The 4 5A display should stop counting Kepeat steps I through 6 for each level shown in Source in Volts Table 4 I Set the LOW SET threshold to 90 dRrn 0 dHm I ress IjlSPl AY in IMPUI SE NOISE t...

Страница 66: ...AL COUNTING NOT COUNTING VOLTAGE IN dBm THRESHOLD THRESHOLD 0 580 0 5 90 9 1 0651 1 5 9 1 92 0 730 2 5 92 93 0 820 3 5 93 94 0 920 4 5 94 95 1 032 5 5 95 96 1158 6 5 96 97 1 299 7 5 97 98 1 457 8 5 98 99 1 635 9 5 99 100 AHHKEVIATED IMPUISE NOISE DAC TEST There is no abbreviated Impulse Noise DAC Test 4 15 ...

Страница 67: ...AT IMI IJI SF NOISE I OW SET Stst AC 2rlibrator to 2000 Hz 775 V 0 0 dHm into 600 ohms Adjust the 49 A threshold to 75 d n Press the STAII I KESF T button L ai t 60 seconds and press STOP The 4935A right display should indicate 480 48 counts I ress Impulse Noise I ISPI AY button to selrct MI11 threshold I hch l XEA display should indicate 480 lf 48 counts I rcss I ISI IAY butt on in IMPIJLSE NOISE...

Страница 68: ...ct equipment as shown in Figure 4 8 On 4935A select POWER NOR REV I SET UP STBY press in simultaneously BRG out DIAL out Both HOLDS out press in RCV 9000 press in TRMT 90011 4 Measure the resistance across the transmitter and receiver jacks Both should be greater than 1M ohm a As the DC blocking capacitors charge the measured resistance may slowly rise Set the Multimeter to the lowest resistance a...

Страница 69: ...sistor externally across the right jack If the TRMT and RCV rrbsistance buttons pressed are 90 X2 the resistor chosen should he 9000 s I h l display shouftf read 0 0 dllm l dI3m A lir feast t hts HR button and rcmovc the resistor t1 R urn to step a and select the next resistor AHl R VlA f EI I EKMINA I TON IMPEI ANCE I ES I I OWKK _ f fSl I AY _ _ NOK z v 1 Si l lJI _ _ MILASIJRJCMKN I OI J I I IJ...

Страница 70: ... as shown in Figure 4 9 2 On 4935A select P3WER DISPLAY NOR SET UP MEASUREMENT FILTER C MESSAGE ON RCV press in press in RCV 6000 NOISE WITH TONE 3 Set AC Calibrator to 1OmV at 1004 Hz 4 I ower the AC Calibrator level until Err 7 appears on the 4935A between 3 4 mVrms 5 On 4935A select LEVEL FREQUENCY and read the signal level from the display It should be 46 dHm t dRm ABBREVIATED HOLD TONE DROPOU...

Страница 71: ...O n 4035A sclcct DISPLAY I RMT N O R prcs i n SET UP press in TRMT IHOLD prcm in RC V HOLD 4 The DC currcn on Lhc milliamniclcr sl ould bc 24 OmA SmA 5 On Ihc 4935A press in Ihc REV btt ton 0 Rc crsc the power supply Icads The DC currcn rcatlings should bc 24 0 mA SmA in both lhc TRM I and RCV HOLD circuik Rclutm the power supply lcads to Ihc nortnal polarily 7 Set the rnoniloring Vollniclcr to it...

Страница 72: ...NC adapter 2 BNC to BNC test cables 6000 load 1 Connect equipment as shown in Figure 4 11 2 On 4995A select POWER ON DISPLAY TRMT NOR press in SET UP press in TRMT 60011 MEASIJREMENT LEVEL FREQUENCY 3 Set the Audio Analyzer to measure distortion in dB The input should be floating 4 Enable the 30 kHz low pass filter on the Audio Analyzer 5 Measure distortion at the following points FREQUENCY OUTPUT...

Страница 73: ...lter Board See Figure 4 l 3 for the circuit and Table 4 14 for the Parts List MODEL 4935A AUDIO ANALYZER 20 dB AMP AND 4kHr LPF Figure 4 12 40 dBm Distortion Test 9 Enable the 30 kHz low pass filter on the Audio Analyzer 10 Measure distortion at the following points The 4 kHz low pass filter should not be used in the measurement FREQUENCY a l 1OOHr br 4000 Hz OUTPUT LEVEL 4 0 dBm 40 dBm DISTORTION...

Страница 74: ... l 0160 6185 1 K pf l 1901 0040 Diode 1901 0040 Diode 0698 7408 6000hm O l 0757 0442 1OKohm l 0757 0442 1 OKohm l 0757 0465 lOOKohm l 0757 0442 1 OKohm I 0757 0465 lOOKohm l 0757 0442 1 OKohm l 0698 3450 42 2Kohm I 0698 3450 42 2Kohm l 0698 3151 2 87Kohm l 0698 7408 6000hm O l 1826 0712 IC OP Amp 3101 0973 DPDT Switch 3101 0973 DPDT Switch 1251 3677 310 Jack 151 O 0076 Binding Post 151 O 0076 Bind...

Страница 75: ...ER ON I ISf I AY RCV SET111 press in both NOR and REV buttons MEASIJREMENT SIGNAI TO NOISE OIJTI IJT LEVEL adjust to 0 0 dHm 1 For each filter in Table 4 15 the displayed level should be within the given range If either level is out of tolerence perform the complete Distortion Test before troubleshooting Table 4 15 Abbreviated Distortion Test 4 24 ...

Страница 76: ...ator for a 300 Hz sinewave at 0 495 Vrms 3 9 dBm 3 For each frequency in Table 4 16 check that the right display is within the acceptable limits Table 4 16 P AR Filter Responses I FREQUENCY I ACCEPTABLE LEVEL 300 Hz 3 0 dBm 1000 Hz 0 dBm 2300 Hz 1 0 dBm 4 Press DISPLAY to change the 4935A to TRMT mode The right display should read 100 l Vary the OUTPUT LEVEL to obtain a left display reading betwee...

Страница 77: ...na to HNC connector female 1 onnect equipment as shown in Figure 4 15 On 4935A select POWER _ O N I ISPI AY RCV MEASIJREMENT N O I S E TO GROUND SIi l l II press in both 600 button BRC in I 3 4 cmnccl ic C lIibralor low 0 ground lug on 4035 A rc r p iticl Short 1035 4 input lip and ring and cot ncct to Lhc AC Calibralor IHIGH Set AC Calibrator output to 7746 Vrms at loo0 Ilz 4935A display should t...

Страница 78: ...rtter Flatness at 40 dBm Recewer Accuracy at 12 dBm and 40 dBm Autorange Test Falter Tests impulse Norse DAC Test Count Lrmit Test Termrnatron Impedance Test Hold Tone Dropout Detector Test Hold Circuit Test P AR Test iOptIons 002 and 003 only Norse To Ground Test Standard Unit Only Distortion Test Longitutal Balance Setup 4 27 4 28 blank ...

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Страница 80: ...ower source For instruments with the hattcrics cOptions 002 and 00 1 disconnect the three batteries and the AC power source Power switch does not turn off AC power and some DC power circuits 5 5 EQUIPMENT REQUIRED 5 6 Test equipment needed for adjustments is listed in Table 1 2 Test equipment with equivalent specifications may be substituted 5 7 Instrument Access see warning of paragraph 5 4 5 x I...

Страница 81: ...or to making any inlcrn ll adjtlslmcnls Access inslrumcnl circuits IS dcscrihcd i n xiragraph 5 7 Thcrc arc cix ad ius mcnt proccdurcs Tar the 4935A a Power Supply Adjustments I Outpul Lcvcl and Trunsmil Monitor Loop Ad iuslmenls c Reccivcr Ad iuvlmcnls d Notch Filler Ad jusln cnts c A I3 P AR Filler and Latch Ad iustmcnts f Hold Circuit AdJustments ...

Страница 82: ...connect the Oscilloscope to A4JU 5 Ripple should not exceed 100 mVAC 5 Connect the Voltmeter to A4JIJ 14 6 The Voltmeter should read 14 VDC JO mV If not adjust A4R31 14V ADJ 7 Remove the Voltmeter and connect the Oscilloscope to A4JU 14 Ripple should not exceed 100 mVAC 8 Connect the Voltmeter to A4JU 14 9 The Voltmeter should read 14 VDC 25 mV and is not adjustable If the reading is incorrect the...

Страница 83: ...IREMENT LEVEL FREQ SET UP press in TRMT 500 press in RCV 600 BRG out DIAL out both HOLD3 out OCITPUT LEVEL turn full clockwise f 3 Adiust AdR74 0UTPUT ADJ I or a rcacling of 3 42 to 3 43 Volts on the ACVhl 1 4 Ad iu3t the OUTPUT LEVEL for I reading of 775mVrms 2 IOmV 5 h lo c the AC VM to A3TP25 0 7 Ad iust AJR72 LOOP ADJ until I agrees with the voltage rcuding in step s 4 Rcchcck the OCITPCIT L E...

Страница 84: ...l a Short A3TI I 0 to A3TP2 I Short A3T1 22 to A3TP23 11 Mcasurc the DC voltage al 1724 Ad usl A3R33 OFFSET ADJ iT the voltage is not wilhiu 0 3mV DC C Rcmovc Ihc shorts plxctl in Step 2 SET Uf AC CALIBRATOR M O D E L 4 9 3 5 A VOLTMETER FIG 5 2 Receiver Adjustments 3 Connect the ccfuipmcnt as shown in Figure S 2 4 On 4035A sclcct DISPLAY RCV NOR REV NOR MEASUREMENT LEVEL FREQ SET llf KC V hO0 BRG...

Страница 85: ...hc to A3TP23 full wave rcctificcl output DISPLAY TRMT MEASUREMENT LEVEL FREQ Vary the OLlTPlJT LEVEL from 0 JBm to I 2 0 dBm starting at 0 and finishing at I 2 9 The wavcrorm at A3TP23 shoulcl bc I full wave rcctificd sinc cavc with the peaks cithin 50 mV of each other On the 4035A press DISPLAY to change l ram TRMT to RC V Atl iust the AC Calibrator to 2 45 Vrms IO dBm at I kHz A rcctificcl sincw...

Страница 86: ...imately 0 0 dRm Press I ISI I AY to select RCV mode Move the JU5 shorting bars to the right short pin 5 to 12 6 to 11 7 to 10 and 8 to 9 onnect an Oscilloscope to 5175 pin 1 Adjust RIO2 995 Hz for minimum AC signal on the Oscilloscope h inge the frequency to 1010 Hz using STEP 1JP button onnect Oscilloscope to JIJ5 pin 4 Adjust AIRI 32 1010 Hz for minimum AC signal on the Oscilloscope Change 49X4 ...

Страница 87: ...r 1 If an adjustment is needed a rising slope oval waveshape is produced 1 When adjusted a single diagonal line will appear 2 3 4 i 6 Externally loop the 4935A TRMT and RCV 310 jacks Select I EVF I FREQIJENCY measurement mode Srt the 49 EA frequency to 1300 Hz Adjust the OIJTPUT IXVEI for a left display of 0 0 dBm Set the Oscilloscope to 0 2 volts per division onnect channel A to TP15 pin 2 and ch...

Страница 88: ...RCV HOLD 4 Ad iust AZR53 TRMT f 101 D to I DC curr cnl rcacling of 24 0mA I mA 5 011 the 4935A prws iu the REV button 0 Ad t A2R73 RCV I IOLD lo I DC current reading of 24 0111A 2 1 11lA 7 Rc crsc the f o vcr wpply IKICIS The DC current rcatlings should bc 24 OmA ImA in both the TRMT ncl RC V IHOLD circuit Rclurn the po cr suf fdy Icads to the normal polarity s Set the nionitoriiig Voltmclcr to I ...

Страница 89: ... with parts listed in alphanumerical order Included is the description quantity total used in the instrument HP Part Number and manufacturers part number Chassis and mechanical parts are also listed in Table 6 3 and Figures 6 1 6 2 and 6 3 6 5 ORDERING INFORMATION 6 6 To order a listed part quote the HP Part Number indicate the quantity needed and address the order to the nearest Hewlett Packard O...

Страница 90: ...pled logic ELECT electrolvtlc ENCAP encapsulated EXT external EXTR extractor F F F FLM FRNT FXD female farads flip flop film front flxed G G E GL GND G P GRA GRN glga IlOg germanlurn glass groundfed General Purpose vav green H HDW HEX HP H R H Z henries 7 hardware hexagon hexagonal SIX high pass hour s Herr7 IC I D I F IN Integrated ctrcult InsIde dtameter lntermedtate frequency Inch Inches INCAND...

Страница 91: ...ow blow tl con controlled rectlfler SrlPnlum s1nqle SIllCOn shank single 1n 11nu package ocket solder spacing single pole double throw s ngle pole slngll throw stalnlt ss steel steel s e T T A T E L T C THKNS TI T G L T H D T H K T O L T R M R 111 t a n t a l u m telephone T e m p C o m p e n s a t e d temp coefflclenl thickness tltdmum logglr thrt ad thick tolerance tr mmer TRN turn T T L transis...

Страница 92: ...ront Cover 5040 4469 1 Instruction Card 0493590018 1 Handle Case 5040 4470 1 Cap Handle 7120 5370 2 Screw Machine 2520 0014 2 Foot Bumper 5041 6750 4 Screw Machine 2520 0014 2 Case Bottom Half lw ws 1 Metal Rod 7205 0356 1 Spring Handle 1460 2096 2 Figure 6 1 Exploded View Case and Covers ...

Страница 93: ...l 04935 JO 1 Front Panel P AR 04935 1 7 Knob Output Level 0370 P P 1 8 Knob Monitor Volume 0370 l 089 1 9 Key Cap White 5041 0201 1 10 Nut Hex 2950 0087 1 11 Washer 5 16x 375 3050 l 288 1 12 Binding Posts Dial Jacks 1510 0131 2 13 Insulator 04936 40001 1 14 Washer No 6 147 ID 3050 0100 1 15 Nut No 6 2420 0023 1 16 Washer Flat 3050 0105 2 17 Transmitter Assy Std 04935 60393c3 1 Transmitter Assy P A...

Страница 94: ...1 1 27 Lock Washer 2190 0027 1 28 Line Filter Module 91350284 1 29 Rear Panel Assy Loaded 04935 60108 1 Consists of ltems 26 26A 27 28 29 32 33 34 35 36 for Repair Replacement only 29A Rear Panel Unloaded 04935 00001 1 30 Foot Rear 50404471 2 31 Screw No 4 2200 O 143 3 32 Binding Post Ground 151 O 0038 1 33 Screw Transformer MTG 2360 0242 4 34 Cover Transformer 7100 l 288 1 35 Nut Transformer MTG ...

Страница 95: ...w 2360 0117 3 5 Battery Charger Board 04935430029 1 6 Receiver Assy Std 04935 60032 1 Receiver Assy P AR 04935 60034 1 7 Screw 2360 0370 6 8 Shield Metal MTG 04935 04701 1 9 Insulator 04935 45401 1 10 Label ID 04935 800 14 1 11 Cable P O Battery 8120 3181 2 Charger Board Figure 6 3 Exploded View Battery Option 6 7 ...

Страница 96: ...de List MANUFACTURER NAME I t 1 11 I M I IJNDIII IOR t llOD I t I 1 KDI I YRIIt II n llHI A iliLRNlr PI clI lil l CO Cl I If XII RNI I Nr SII Il ONlX INC I l Nt I r S 1 1113P M I I r O l I El IIfA CllRt HAliHl i i M O IUI tIARR INll R YI iYNJI 1 iEl ADDRESS ZIP CODE ...

Страница 97: ...5OD684X9035PZ CAPACITOR FXD Ol UF 20 1 WVCC CER 28480 0160 3879 CAPACITOR FXD OlUF 2O IOOVDC CER 28480 0160 3879 CAPACITOR FXD I UF M 5OVDC CER 28480 0 180 0576 0160 0576 5 CAPACITOR FXD 1 UF 20 5OVM CER 28480 0160 0576 10064069 1906 0069 1826 0585 1826 0585 9 9 2 2 DIODE FW BRDG 4WV IA 28480 1906 0060 DIODE FW RRDG 4oOV IA 28480 1006 0249 V REF TO 92 27014 LM32ODZ V REF TO 92 27014 LM329DZ 1 8 DI...

Страница 98: ...100 RESISTOR 100 1 125WFTC Ot 100 RESlSTOR1W1 125WFTC 0 100 RESlSTORlM 1 125WFTC O 100 RESlSTOR215K 1 125WFTC O 100 RESISTOR TRMR 10 20 C SIDE ADJ 17 TRN RESISTOR 19 6 1 125W FTC O 100 02111 43PlW 03888 PME55 1 TO 19R6 F 24546 C4 l 8 TO 101 F 24546 C4 l 8 TO 101 F 24546 C4 l 8 TO 101 F 24546 28480 24646 02111 03888 C4 l 8 TO 101 F 0698 8827 C l TO 2152 F PME55 l 8 TO 19R6 F RESISTOR 100 1 125W FTC...

Страница 99: ...IN THK SCREW MC CI 6 32 375IN LG PAN HDFOZI KEY CPA DIAL SETUP TRMT KEY CAP HOLD SETUP TRMT R KEY CAP 800 SETUP TRMT R KEY CAP BOO SETUP TRMT R TWISTED PAIRJMPR WASHER FLAT prfr ode 28480 z oooo0 00000 0340 0892 ORDR BY DSCRPTN ORDR BY DSCRPTN ORDR BY DSCRPTN ORDRBYDSCRPTN omlo ORDR BY DSCRPTN 28480 5041 02ul 28460 5041 1931 26460 5041 1932 28480 5041 ID33 26480 5041 ID34 28480 5041 IS36 28480 504...

Страница 100: ...0 2OVDC TA 58289 15Dl06XBO2OB2 CAPACITOR FXD IOUF IO 20VDCTA 56289 150108X802082 CAPACITOR FXD IOUF 0 2OVDCCER 56289 150106X902082 CAPACITOR FXD I UF 20 5OVDc CER 28480 0160 6623 A X 3 8 0140 0180 7 CAPACITOR FXD 39PF 5 300 VDC MICA 72136 MDl5E3BOJ030WVlCR A3C39 0160 0167 0 2 CAPACITOR FXD J82UF t 10 20OVDcPDLYE 28480 0180 0167 EE 0160 0167 0160 6823 0 z CAPACITOR FXD CAPACITOR FXD 082U lUF 2U X I...

Страница 101: ...R FXD lUF 20 5OVDCCER CAPACITOR FXD iUF 20 5OVGC CER CAPACITOR FXD IMOPF I 1WVDCMICA CAPACITOR FXD 24WPF I 3WVDCMICA CAPACITOR FXD lUF t 20 5OVDC CER CAPACITOR FXD I UF 20 5OVDc CER CAPACITOR FXD 17WPF 1 3OOVDc MICA CAPACITOR FXD lUF 20 50VDC CER CAPACITOR FXD l UF M 5OVDc CER CAPACITOR FXD 38OPF 1 3WVDc MICA CAPACITOR FXD l UF 20 WVDC CER 08113 tiF20475lPF3Cl CAPACITOR FXD lUF 20 WVDCCER 28480 01...

Страница 102: ...480 24546 C 8 831 R F C4 I TO ICOI F 2 0757 0290 0757 0290 A3R8 0757 0290 A3RQ 0606 0084 A3RlO 0698 0064 A3Rll 0698 oos4 A3Rl2 0757 0453 A3Rl5 1810 0281 A3Rl5 0757 0442 A3Rl7 0757 0442 A3Rl8 0757 0442 A3RlQ 0698 3457 AJR20 1810 0281 A3R21 1810 0369 A3R22 ffi96 6360 A3R23 2100 3662 A3RZ6 0698 3152 A3R27 0698 3153 A3R26 0757 636G A3R29 o69 632c A3R30 0757 16 A3R32 0757 0416 A3R33 2lW 3683 A3R34 0757...

Страница 103: ...TC 0 1W C4 l a TO 2152 F 24546 RESlSTORl9 6Kl l25WFTC 0 100 C4 l a TO 751 F 24546 RESlSTOR75Ol l25WFTC 0 100 C4 l a TO 1962 F 24546 RESlSTORlKl l25WFTC 0c 100 C4 l a TO 751 F 24546 C4 l a TO lWl F RESISTOR 2 37K 1 125W 24546 RESISTOR 2 37K 1 125W 24546 RESlSTORl 2lKl l25WFTC 0 100 24546 RESlSTOR2 l5Kl l25WFTC 0 lW 24546 RESISTOR TRMR 50010 C TOP AD 17 TRN 28480 CA 1 a TO 2371 F CA l a TO 2371 F C4...

Страница 104: ...SlSTOR2 162K1 125MFTC Ot 25 26480 0698 6446 RESlSTOR7 741K l 125WFTC Ot 25 28460 0698 0592 RESlSTORiOK 1 125WFTC 0t 25 26460 0698 6360 RESlSTORlOK l 125WFTC Ot 25 28480 0698 6360 RESlSTOR15 758K 1 125WFTC 0 25 28480 0699 0590 RESlSTOR2 26K l 125WFTC Ot 25 28480 089s0597 RESlSTOR2 26K 1 125WFTC 0t 25 28480 0899 0587 RESlSTOR10K 1 125WFTC 0t 25 26480 06 48 6300 RESISTOR lOK l 125W FTC Ot 25 26480 06...

Страница 105: ...AMP H SLEW RATE E DIP P PKG IC OP AMP H SLEW RATE S DIP P PKG 28480 1826 1071 34371 HA3 2507 5 34371 HA3 2507 5 34371 HA3 2507 5 34371 HA3 2507 5 IC OP AMP H SLEW RATE 8 DIP P PKG 34371 H 2507 5 IC OP AMP GP S DIP P PKG 27014 LMJION IC SWITCH ANLG DUAL 16 DIP C PKG 32203 lH504CDE IC OP AMP GP Et DIP PPKG 27014 LMJION ICOP AMP GP E DIP P PKG 27014 MC34081 P IC OP AMP H SLEW RATE 8 DIP P PKG 34371 H...

Страница 106: ...458 0180 8823 0190 6623 CAPACITOR FXD IUF 20 5OVDC CER 28480 0180 6823 CAPACITOR FXD IOPF 5 MVDCCER 28480 0180 4791 CAPACITOR FXD 33PF 5 5OVDC CER 28480 0180 4807 CAPACITOR FXD lUF 20 5OVDC CER 28480 0180 4807 CAPACITOR FXD I UF 0 5OVCC CER 28480 018043623 CAPACITOR FXD I UF f 20 5OVDC CER 28480 0180 8823 CAPACITOR FXD lUF 20 5OVDc CER 28480 0180 8823 CAPACITOR FXD 33OUF 50 l 18VDC AL 28480 0180 3...

Страница 107: ...0160 6509 CAPACITOR FXD Ol UF 10 5OVCC CER 28483 0160 6500 CAPACITOR FXD OIUF t 10 50VDC CER 28489 0160 6500 CAPACITOR FXD IUF t 20 5OVDC CER 28486 01606623 CONNECTOR SGL CONT PIN 025lN BSC SZSQ 26480 I 25 i 6947 DIODE ZNR 5 1 IV 5 DC 35 PD 4W 26460 1902 0041 DIODE GEN PRP 18OV 203MA DO 7 28480 1902 6033 DIODE PWR RECT 400V 1A 28480 1961 0731 DIODE ZNR 18 OV 2 PD 4W 02637 IN5248 DIODE PWR RECT 4WV...

Страница 108: ...K1 125WFTC Ot 100 24546 C4 1 8 TO 1002 F 6 MF4 l 8 TO QOSl F C4 l e TO 751 F C4 1 B TO 751 F C4 l 8 TO 1961 F RESlSTORl00Kl l25WFTC 0t 100 24546 C4 1 8TO 1003 F NElWORK RES 8 SIP 22 OK OHM X 7 01121 208A223 RESISTOR 1OOK1 125W F TC O 100 24546 C4 l 8 TO 1003 F RESISTOR TRMR 2K 10 C TOP A I 17 TRN 28480 2100 3882 RESISTOR511 1 125WFTC O 100 24546 C4 l 8 TO 51 IR F RESlSTOR1 96Kl l25WFTC 0 l00 24546...

Страница 109: ...6480 9100 2647 TEST PIN 025 IN BSC SZSO 28480 0360 0535 TEST PIN 025 IN BSC SZ SCI 28480 0360 0535 TEST PIN 025 IN BSC SZSC 28480 0360 0535 CONNECTR SGL CONT PIN 025 IN ESC SZ SO 28480 1251 6947 CONNECT SGL CONT PIN 025IN ESC SZ SQ 28480 1251 6947 CONNECTR SGL CONT PIN 025 IN BSC SZ SO 28480 1251 6947 CONNECTR SGL CONT PIN 025 IN BSC SZ SQ 2 3460 1251 6947 CONNECTR SGL CONT PIN 025 IN BSC SZ SQ 28...

Страница 110: ...OS EDGE TRIG IC INV mL LS HEX I INP IC FF TTL LS D TYPE POS EDGE TRIG IC OP AMP H SLEW RATE DIP P PKG IC OP AMP H SLEW PATE 8 DIP P PKG SOCKET IC 40 CONT DIP SLDR SOCKET IC 14 PIN CRYSTAL 4 OOOMHZ 26480 CRYSTAL 4 1984304MHZ 26480 A4 MISCELLANEOUS PARTS CONNECTOR SGL CONT PIN 04IN RSCSZ RND 28480 0360 0124 SOCKETXSTR 3 CONT POWER DIP SLDR 26460 1200 0366 CONNECTOR SGL CONT PIN 031 IN BSC SZ 28480 1...

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Содержание 4935A

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HP 4935A, Руководство по эксплуатации и обслуживанию

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