Tektronix 7A24 Instruction Manual Download | Manualshive

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Summary of Contents for 7A24

Page 1: ...nc P O Box 500 Beaverton Oregon 97077 070 2391 00 COMMITTED TO EXCELLENCE DUALTRA C E A ft h IJFIEA sN ijiQ3booL p INSTRUCTION MANUAL Serial Number _______ Scans by ArtekMedia 2006 First Printing SEPT...

Page 2: ...done as follows 1 Typed text pages are typically scanned in black and while at 300 dpi 2 Photo pages are typically scanned in gray scale mode at 600 dpi 3 Schemalic diagram pages are typically scanned...

Page 3: ...nix Inc Products of Tektronix Inc and its subsidiaries are covered by U S and foreign patents andl or pending patents TEKTRONI Xr TEK SCOPE MOBILE and are reg istered trademarks of Tektronix Inc TELEQ...

Page 4: ...IFIED TO DO SO SECTION 3 THEORY OF OPERATION INTRODUCTION 3 1 BLOCK DIAGRAM 3 1 CH 1 AND CH 2 ATIENUATORS 3 1 CH 1 AND CH 2 AMPLIFIERS 3 2 DISPLAY SWITCHING AND OUTPUT 3 2 CH 1 AND CH 2 READOUT 3 3 PA...

Page 5: ...end lead connector assembly 4 8 4 6 Exploded view of circuit board pin and ferrule 4 9 5 1 Test circuit for Input Resistance Check Adjust step 5 5 5 2 Approximately 2 5 division pulse obtained in step...

Page 6: ...operation could cause an explosion AVOID LIVE CIRCUITS Electrical shock hazards are present in this instrument The protective instrument covers must not be removed by operating personnel Component re...

Page 7: ...se with Tektronix 7000 series Oscillo scopes Each channel has an input impedance of 50 ohms and is internallv fused Internal attenuatoB and gain circuits are switched to correspond to the settings of...

Page 8: ...TCH Figur 2 R I Latch 2391 2 CONTROLS AND CONNECTORS All controls and connectors required for operation of the Vertical Amplifier are located on the front panel Figure 1 3 provides a brief description...

Page 9: ...enu with readout also repl ees readout with the word IDENTIFY 1 2 I I of inVilrting the CH CM Z l OlAalTY i When the VARIABLE is pushed in it becomes I f I 1 screwdriver adjustment fe I calibrated def...

Page 10: ...e for the 7A24 Instrument operation not explained here or operation which needs further explanation is discussed under Detailed Operating Information DETAILED OPERATING INFORMATION INTRODUCTION For si...

Page 11: ...d set the DISPLAY MODE switch to the corresponding position CH 1 or CH 2 1 4 To display a signal in one channel independently when a signal is also applied to the other channel simply select the desir...

Page 12: ...e signal to either Input connector 2 Set the DISPLAY MODE and TRIGGER SOURCE switches to display the channel used 3 Set the Input Coupling switch to DC 4 Set the VOLTSIDIV switch to display about five...

Page 13: ...uation factor of the probe if used EXAMPLE Assume the vertical distance measured is 3 6 divisions see Fig 1 5 and the waveform is above the reference line using a 10X probe with a VOLTS DIV setting of...

Page 14: ...DUAL TRACE PHASE DIFFERENCE MEASUREMENTS Phase comparison between two signals of the same frequency can be made using the dual trace feature of the 7A24 This method of phase difference measurement can...

Page 15: ...zontal difference divisions magnified X sweep rate degrees division Substituting the given values Phase Difference 3 X 4 5 The phase difference is 13 5 i I j CH NNE 1 I i 1 r IREFERENCE I 1 V 1 r t CH...

Page 16: ...red portion of the Channel signal EXAMPLE An example of this mode of operation is shown in Figure 1 8 The signal applied to Channel contains unwanted line frequency components Fig 1 8A A corresponding...

Page 17: ...1 2 5 sequence 2 of indicated deflection factor with GAIN adjusted at 10 mV Div Continuously variable between calibrated steps extends deflection factor to at least 2 5 volts per division Permits adju...

Page 18: ...mental Information Refer to 7000 series Oscilloscope System EISOO1 B Specification associated 7000 series Mainframe Qualified under NSTC Test Procedure 1A Category II TABLE 2 3 Physical Information Fi...

Page 19: ...Display and Trigger Channel Switching amplifiers The Display and Trigger Channel Switching amplifiers provide differential signal outputs for the signal and trigger lines from each channel to a common...

Page 20: ...s circuitry shifts the dc level between U2450 and U2550 and provides positioning current 3 2 Low frequency and dc signals are coupled through R2450 L2450 02450 R2455 and R2460 L2460 02460 R2455 which...

Page 21: ...type switch The dots on the contact closure chart see Diagram 4 indicate when the associated contacts are closed Resistors R633 R634 and R635 select the numbers 1 2 or 5 depending on the resistor comb...

Page 22: ...ver abrasive cleaners should not be used INTERIOR Cleaning the interior of the unit should precede electrical adjustment since the cleaning process could alter the settings of the adjustments Use low...

Page 23: ...UNDER 10pF BLACK 0 1 1 20 t 2pF BROWN 1 10 1 10 1 0 1 pF RED 2 102 or100 2 102 0r 100 2 ORANGE 3 1030r 1 K 3 103 or 1000 3 4 104 or 10K 104 or 10 000 100 YELLOW 4 0 GREEN 5 105 0r100K 1 2 105 0r 5 0...

Page 24: ...OARDS The circuit boards used in the 7A24 are outlined on the schematic diagrams and illustrations of the boards are shown on the backs of preceding diagram pages Each board mounted electrical compone...

Page 25: ...the needs of both items 2 and 3 4 Plug in Extender A fixture that permits operation of the unit outside of the plug in compartment for better accessibility during troubleshooting Order Tektronix Part...

Page 26: ...check tunnel diodes or back diodes with an ohmmeter Do not use an ohmmeter scale that has a high internal current High currents may damage the diodes Maintenance 7A24 SN 8103000 UP C Resistors Check r...

Page 27: ...art if electrical include circuit number 4 Tektronix Part Number 4 6 SOLDERING TECHNIQUES I WARNING I To avoid electric shock hazard disconnect the instrument from the power source be fore soldering T...

Page 28: ...e or a direct replacement The lead configurations of the semiconductors used in this instrument are shown in Figure 4 3 If the replacement semiconductor is not of the original type check the manufactu...

Page 29: ...aced as a unit For cable or wiring harness part numbers see Section 9 Replaceable Mechanical Parts An alternative solution is to refer the replacement of the defective connector to your local Tektroni...

Page 30: ...ock remove the retaining ring from the shaft on the front of the switch and slide the cam out of the support block Be careful not to lose the small detent roller 4 To replace defective switch contacts...

Page 31: ...To check or adjust only part of the instrument refer to the Equipment Required list which precedes that portion of the procedure to be performed To avoid unnecessary adjustment of other parts adjust o...

Page 32: ...ge to at least Used for Common Mode Re 50 MHz reference fre jection Ratio Check Display quency 50 kHz output amp Mode Trigger Source litude at least 50 millivolts Checks and High Frequency into 50 Ohm...

Page 33: ...s BNC imped Used throughout the pro ance 50 Ohms length 42 cedures inches 9 inches Connectors BNC 50 Ohm Used for Bandwidth Check Precision 36 inches BNC to SMA Used for High Frequency Checks and Adju...

Page 34: ...er plug in unit into the Right Vertical compartment 4 Insert the time base plug in unit into a horizontal compartment Performance Requirement check see introductory information 5 4 5 Set the 7A24 fron...

Page 35: ...ing CH 2 controls SQUARE WAVE GENERATOR 0 25 VOLT S1S 6 50 ohm Amplitude Calibrator 7 Square Wave Generator 8 Signal Generator Mainframe 9 Cable 50 ohm 10 Screwdriver in the Diagrams section V 2 CHECK...

Page 36: ...DISPLAY MODE switch to CH 2 f Reset the CH 1 VARIABLE to the CAL IN position g Adjust CH 2 DC Bal R241 0 for minimum trace shift while switching from UP to INVERT h Return control to UP i Check for a...

Page 37: ...ator for three divisions of display d Connect a 50 mV signal from the 50 ohm Amplitude Calibrator to the CH 1 input REV A MAR 1980 e Set the TRIGGER SOURCE switch to CH 1 f Check that both signals are...

Page 38: ...0 series Mainframes 10 ADJUST HIGH FREQUENCY COMPEN SATION ABERRATIONS 4 4 6 pop MAXIMUM RISE TIME 850 ps MAXIMUM a Sampling Setup 1 Install both 7S 11 sampling units into 7704A vertical compartments...

Page 39: ...2 Connect signal pickoff 067 0655 00 to flexible extender and connect 7A24 to signal pickoff 3 Connect signal pickoff wires A 11 Vertical to the left 7S 11 input and B11 Vertical to the right 7S 11 in...

Page 40: ...ry information 5 10 12 CHECK BANDWIDTH 3 dB OR LESS AT 450 MHz a Connect the SG503 Medium Frequency Signal Generator through the precision 50 ohm cable and GR to BNC adapter to the CT3 Signal Pickoff...

Page 41: ...tion the 7A24 CH 1 Coupling switch half way between DC and OFF open circuit and adjust the SG503 output amplitude so trace is on the 7th horizontal graticule line from the top f Remove the 10X attenua...

Page 42: ...ange 7A22 VOLTS DIV to 50 J1 V and disconnect the SG 504 Leveli ng Head from the VSWR test fixture RF In connector 5 12 w Position the trace to the top graticule line with the 7A22 Position control Re...

Page 43: ...STRUMENT OPTIONS No options were available for this instrument at the time of this printing Information on any subsequent options may be found in the CHANGE INFORMATION section in the back of this man...

Page 44: ...ll contact you concerning any change in part number Change information if any is located at the rear of this manual SPECIAL NOTES AND SYMBOLS XOOO Part first added at this serial number OOX Part remov...

Page 45: ...S PHILADELPHIA DIVISION BELL INDUSTRIES INC MILLER J W DIV STACKPOLE CARBON CO TEKTRONIX INC SWITCHCRAFT INC DALE ELECTRONICS INC VITRAMON INC Address 1201 2ND STREET SOUTH POBOX 5012 13500 N CENTRAL...

Page 46: ...DI 0 OIUF 80 20 150V 72982 855 558Z5u I03Z CI015 283 0003 00 CAP FXD CER DI 0 OIUF 80 20 150V 72982 855 558Z5U I03Z CI018 283 0003 00 CAP FXD CER DI 0 OIUF 80 20 150V 72982 855 558Z5U I03Z CI022 283 0...

Page 47: ...00Al 3 C2753 281 0151 00 CAP VAR CER DI 1 3PF 100V 72982 518 600Al 3 C2853 281 0151 00 CAP VAR CER DI 1 3PF 100V 72982 518 600Al 3 C2857 283 0140 00 CAP FXD CER DI 4 7PF 5 50V 72982 8101E003A479C CR62...

Page 48: ...CON PNP 04713 SPS6868K Q2940 151 0188 00 TRANSISTOR SILICON PNP 04713 SPS6868K Q2950 151 0188 00 TRANSISTOR SILICON PNP 04713 SPS6868K Q2960 151 0302 00 TRANSISTOR SILICON NPN 07263 S038487 RI00 317 0...

Page 49: ...7K OHM 5 0 25W 01121 CB4735 R1329 315 0473 00 RES FXD CMPSN 47K OHM 5 0 25W 01121 CB4735 R1332 311 1266 00 RES VAR NONWIR 2 5K OHM 10 0 50W 32997 3329P L58 252 R1334 315 0510 00 RES FXD CMPSN 51 OHM 5...

Page 50: ...37 MFF1S16G49R90F R1767 322 0104 00 RES FXD FILM 11S OHM l O 25W 91637 MFF1421G11SROF RISSO 321 0068 00 RES FXD FILM 49 90HM l O 125W 91637 MFF1S16G49R90F R1852 323 0164 00 RES FXD FILM 4990HM l O 50W...

Page 51: ...0C R2322 321 0776 03 RES FXD FILM 3 501K OHM 0 25 0 125W 91637 MFFl816D350 1OC R2323 321 0776 03 RES FXD FILM 3 501K OHM 0 25 0 125W 91637 MFF1816D35010C R2325 315 0562 00 RES FXD CMPSN 5 6K OHM 5 0 2...

Page 52: ...42 CECTO 2100F R2515 311 1261 00 RES VAR NONWIR 500 OHM 10 0 50W 32997 3329P L58 501 R2550 315 0751 00 RES FXD CMPSN 750 OHM 5 0 25W 01121 CB7515 R2551 315 0132 00 RES FXD CMPSN l 3K OHM 5 0 25W 01121...

Page 53: ...BIFILAR 80009 120 0286 00 T2300 119 0418 00 CPLR XMSN LINE BALUN 80009 119 0418 00 T2301 119 0418 00 CPLR XMSN LINE BALUN 80009 119 0418 00 T2527 276 0557 00 CORE FERRITE 0 23 ID X 0 12 IDXO 125 7848...

Page 54: ...nector stationary portion TP Test point C Capacitor fixed or variable K Relay U Assembly inseparable or non CB Circuit breaker L Inductor fixed or variable repairable integrated circuit CR Diode signa...

Page 55: ...A2 A4 READOUT Figure 8 1 Circuit board locator AS AMPLIFIER Scans by ArlekMedia 2006...

Page 56: ...C E B B 1 _ _ _ _ _ _ _ PLASTIC CASE TRANSISTORS ______ l L _ _ INTEGRATED J CIRCUIT Figure 8 2 Semiconductor lead configurations Scans by ArtekMedia 2006 C2391 5...

Page 57: ...I I 1 I Siooe I I I CH 2 CH 2 GAIN S ITCHED 1 _ 1 LEVEL SHIFT _ 1 POSITION R 248 ATTENUATOR ii _I GAIN POLt ITV 02450 Q2 4GO 02 4 0 02 480 I POSITION 1 t MPLlI IE INVERT U 2350 AMPllnE R 2 450 READOUT...

Page 58: ...00 8t UP A B c D E F 2 2391 21 Figure 8 3_ A1 and A3 Attenuator circuit board assembly_ CKT GRID CKT GRID NO COORD NO COORD F100 2E R100 1E R101 1E R106 28 J100 2F R110 2C J175 1A R119 20 Scans by Arl...

Page 59: ...A2 A4 READOUT A5 AMPLIFIER Scans by ArtekMedia 2006...

Page 60: ...I I I I I i l f I l e I Ji15 CW CCW 2 CLOSURE DOT IIIIDICATES A COIIITACTS CLOSED B CONTACTS OPEN 3 A CONTACTS ARE ON CAM SIDE O BOARD CH I SIGNAL TO CH I AMPL DIAf 0 2A RIOO I I I J175 CH2 SIGNAL o A...

Page 61: ...5G R1310 1F R1862 2B R2436 5F R2971 20 C2424 3F R1313 1G R1864 2B R2438 5F C2426 3F R1315 1G R1867 2B R2443 5F RT1420 1F C2430 4F R1316 1H R1910 5B R2445 5F RT2420 3F C2450 4E R1317 2H R1912 5B R2450...

Page 62: ...A2 A4 READOUT A5 AMPLIFIER Scans by ArlekMedia 2006 4 J 1...

Page 63: ...ator equipped with 10X probe A 1 kHz 20 mV into 50 n signal was fed to CH 1 of the 7A24 Voltage Conditions The voltages shown on the diagram were obtained using a digital multimeter with a 10 mn input...

Page 64: ...2006 Rlo S 49 Rln f i 232 J o CI328 T OO m 4 R Rl 32 47K 47K P619 i __ A J 2391 2 REV C SEP 1 leo I If RISSo 50 TO C I OISPLAY WTPUT AMPL OI o G TO J UIl50 COMPoNENT PART OF ECB FOR OECOUPLING NET ORK...

Page 65: ...G R1310 1F R1862 2B R2436 5F R2971 2D C2424 3F R1313 1G R1864 2B R2438 5F C2426 3F R1315 1G R1867 2B R2443 5F RT1420 1F C2430 4F R1316 1H R1910 5B R2445 5F RT2420 3F C2450 4E R1317 2H R1912 5B R2450 5...

Page 66: ...A2 A4 READOUT AS AMPLIFIER Scans by ArlekMedia 2006...

Page 67: ...ix 7603 7B53A Time Base and 7A13 Differential Comparator equipped with 10X probe A 1 kHz 20 mV into 5011 signal was fed to CH 1 of the 7A24 Voltage Conditions The voltages shown on the diagram were ob...

Page 68: ...50 e R176Z ___ r i FROM c 1 I 49 1 RI161 C 4 I S NITCHINGo AMPL CI1 _ It DISPLAY S GNt L g 0UT HF RI164 CHAIJNEL OIAG e s nCH RI154 49 9 16 ISV 8M It C 0 l 40 9 8 J U 9 __l 1 B D I L _ RI750 _B_ J IIO...

Page 69: ...assembly CKT GRID CKT GRID NO COORD NO COORD C621 1D R633 2C R634 2B CR621 1C R635 2B CR630 1B R636 2B CR631 1B R638 2B CR634 1B R639 2A CR635 1B R640 2C CR638 1B R642 2B CR647 1B R643 2A CR648 1B R6...

Page 70: ...A2 A4 READOUT Scans by ArlekMedia 2006 A5 AMPLIFIER...

Page 71: ...purchased separately unless otherwise specified ITEM NAME In the Parts List an Item Name is separated from the description by a colon Because of space limitations an Item Name may sometimes appear as...

Page 72: ...G COMPANY INC N L INDUSTRIES INC SOUTHERN SCREW DIV INDUSTRIAL RETAINING RING CO Address 105 SE TAYLOR 7923 SW CIRRUS DRIVE 2620 STEVENS DRIVE POBOX 3608 7100 LAMPSON AVE 9301 ALLEN DRIVE YOUK EXPRESS...

Page 73: ...R1487 R2487 EPL ATTACHING PARTS 2 NUT PLAIN HEX 0 25 32 X 0 312 INCH BRS 2 TERMINAL LUG 0 25 INCH DIA SE CONTACT ELEC GROUNDING CU BE HEAT TRTD SUBPANEL FRONT ATTACHING PARTS 4 SCR TPG THD FOR 6 32 X...

Page 74: ...3385 OBO 59 210 0004 00 2 WASHER LOCK 4 INTL O 015THK STL CD PL 78189 1204 00 00 0541C 60 129 0299 00 2 POST ELEC MECH HEX O 333 INCH LONG 80009 129 0299 00 61 210 0004 00 1 WASHER LOCK 4 INTL O 015TH...

Page 75: ...00 0541C SWITCH ASSEMBLY INCLUDES 260 1493 00 SWITCH ROTARY DISPLAY 76854 5 43681 411 104 175 0826 00 FT WIRE ELECTRICAL 3 WIRE RIBBON 80009 175 0826 00 105 175 0827 00 FT CABLE SP ELEC 4 26 AWG STRD...

Page 76: ...x Serial Model No Mfr No Part No Eft Dscont Qty 1 2 3 4 5 Name Description Code Mfr Part Number 070 2391 00 1 MANUAL TECH INSTRUCTION 80009 070 2391 00 7A24 DUAL TRACE AMPLIFIER SIN 8103000 up Scans b...

Page 77: ...sheets are carried in the manual until all changes are permanently entered some duplication may occur If no such change pages appear following this page your manual is correct as printed SERVICE NOTE...

Page 78: ...tude output 100 V 067 0S02 01 PG S06 Does not have chopped feature OS02 01 Comparator output can be alter nately chopped to a reference voltage SG S03 replaces 190 190A 190B SG S03 Amplitude range S m...

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