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I NSTRUCTION
MANUAL
-IN
Tektronix, Inc.
S .W . M illikan W a y
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P. O . Box 50 0
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Beaverton, O regon
®
Phone Ml 4-0161
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C ab le s: Tektronix
Tektronix International A .G .
Terrassenw eg 1A
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Zug, Sw itzerlan d
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P H .0 4 2 - 4 9 1 9 2
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C a b le : T e kintag , Zug Sw itzerlan d
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Telex 5 3 .5 7 4
0 7 0 -3 3 6
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Related Manuals for Tektronix TYPE L
Summary of Contents for Tektronix TYPE L
- Page 1 P. O . Box 50 0 • Beaverton, O regon ® Phone Ml 4-0161 • C ab le s: Tektronix Tektronix International A .G . Terrassenw eg 1A • Zug, Sw itzerlan d • P H .0 4 2 - 4 9 1 9 2 •...
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Page 2: Warranty
WARRANTY All Tektronix instruments are warranted against defective materials and workman ship for one year. Tektronix transformers, manufactured in our own plant, are war ranted for the life of the instrument. Any questions with respect to the war ranty mentioned above should be taken up with your Tektronix Field Engineer. -
Page 3: Table Of Contents
CONTENTS W arran ty- Characteristics Section 1 S e c tio n 2 O p e r a t in g In s tru c tio n s Section 3 C ir c u it D e s c r ip t io n Maintenance S e c tio n 4 Calibration Procedure... - Page 4 TYPE L PLUG-IN UNIT INPUT SERIAL VARIABLE VOLTS/CM VERTICAL POSITION FAST-RISE CALIBRATED PREAMP .0 5 -2 0 V/CM A C / 0 C COUPiPO PREAMP R )SSriM E - . 0 0 6 p 5EC ,0 0 5 -2 V/CM AC COUPLED PREAMP RiSETiM E - .01 MS£C...
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Page 5: Characteristics
10. gain, calibrated pream plifier designed for use This instrument was adjusted at the factory with the Tektronix 530-, 540-, 550- and *580- fo r best transient response. The L Unit alone Series oscilloscopes. The unit contains a fast-... - Page 6 Table 1-1 summarizes risetim es and frequency responses available when the L Unit is used Type L Plug-In Unit: 1 Megohm shunted by in combination with various types of Tektronix 20 picofarads. oscilloscopes. Type P6017 Probe: 10 Megohms shunted by 14 picofarads.
- Page 7 VAR IAB LE , VOLTS/CM controls are called by the names usually applied fully clockwise to them on the scopes with which the Type L Unit can be used. Alternate names fo r the 3. Connect the power cord to the instrument controls are given in parentheses.
- Page 8 - adjust amplifier section of the not shift oscilloscope dis able control sets gain play. unit. X10 amplifier sec tion. F ig. 2-1. Functions of front-panel controls and connectors of the Type L Plug-In Unit. Operating Instructions - Type L Plug-In...
- Page 9 The Type L Unit has two screw driver adjust ments on the front panel fo r setting gain--one V ariable Attenuator Balance fo r each am plifier in the unit. Checking the...
- Page 10 F irst-T im e Operation. Turn the At the INPU T connector of the Type L , the oscilloscope CALIBRATOR voltage selector to impedance of the input circuit is equivalent to 2 VOLTS.
- Page 11 Voltage Measurements types of voltage measurements may be made with an oscilloscope/Type L Plug-In Unit combination: (1) peak-to-peak voltage of a displayed waveform, and (2) peak voltage a waveform with respect to a reference voltage. The following procedures are intended to show general methods, and can be modified to suit any particular application.
- Page 12 15:1, voltage calculation would be: reference voltage (ground) and connect it to (4cm) x (0.2 VOLTS/CM) x (15) = 12 volts voltage signal source to be measured. above ground, or + 12 volts. Operating Instructions - Type L Plug-In...
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Page 13: C Ir C U It D E S C R Ip T Io N
F or high- main am plifier of the Type L Unit frequency signals, the impedance of the capaci consists Phase Inverter Stage which tors is low in comparison to the resistance of produces X2 amplification, preceded and fo l... - Page 14 Voltage on the cathode of V6342 the tube is removed without turning off the may be adjusted to balance that of V6242, power. eliminating current through R6352. This is Circuit Description - Type L Plug-In...
- Page 15 C .F . Since the following stages are dc-coupled, to the fixed series peaking coils, L6672 and this change in dc level at the D river C.F.s L6772. Circuit Description - Type L Plug-In...
- Page 16 NOTES...
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Page 17: Maintenance
C O M P O N E N T R E P L A C E M E N T Two distinct types of ceram ic strips have procedures for replacing most parts been used in Tektronix instruments. The earlier in the L Unit are obvious and detailed instruc type mounted on the chassis by means of tions are not required. - Page 18 Replacement for all parts used in the Type L Unit can be purchased directly from Tektronix When the damaged strip and clip assembly at current net prices.
- Page 19 The number portion of special parts are also used. These parts are the code refers to the wafer number on the manufactured o r selected by Tektronix to satisfy switch assembly, wafers being numbered from particular requirements, or are manufactured the front of the switch to the rear.
- Page 20 V6242 (the input side of the Phase Inverter Stage). Due to the coupling capacitor The firs t step in troubleshooting a Type L (C6112) between V6042 and V6132, the Second Unit is to determine whether the trouble is C .F.
- Page 21 F irs t Am plifier (V5942) to see which positions of the VOLTS/CM switch o r the Second Am plifier (V6042). Since these have distortion. If the distortion occurs on one stages ac-coupled to the Second C.F. Maintenance - Type L Plug-In...
- Page 22 Fig. 4-3. (a) Waveform showing insufficient high-frequency peaking, (b) Spiking caused by excessive high-frequency peaking. Maintenance - Type L Plug-In...
- Page 23 Peaking control (R6692) can cause this condition. solder falling on a peaking coil is often a R efer to the Calibration Procedure for the cause of this condition. Cross-coupling proper adjustment of this control. capacitors C6672 and C6772 are also very Maintenance - Type L Plug-In...
- Page 24 NOTES...
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Page 25: Calibration Procedure
1. Test Oscilloscope, Tektronix 540- or 550- Type L Plug-In Unit is provided in this section Series. the manual. The steps in the procedure arranged in correct sequence to avoid 2. - Page 26 VOLTS/CM switch from .05 to .1 position. and remove the left-side and bottom panels. Any shift in trace position should not exceed Insert the Type L Unit and preset the o s c illo 2 mm. If this...
- Page 27 AM PLITUDE CALIBRATOR to the INPUT rotate the VARIABLE (VOLTS/CM) control connector of the Type L Unit. Position the back and forth while watching the crt fo r a base line of the calibrator waveform on the shift in position of the trace.
- Page 28 V6042Cathode Wave Generator to the Attenuator/Standardizer Current Adj. control on the left side of the combination on the Type L Plug-In Unit. Adjust L Unit. the amplitude of the display to about 3.5 cm...
- Page 29 1000X attenuation. Short the input blocking mately 3 cm. Adjust the H. F. Peaking control capacitor (C5001) with the resistive shorting on the bottom side of the Type L for a square- strap. Adjust the amplitude of the display to cornered waveform with no overshoot.
- Page 30 With the 50f2 Terminating Resistor installed Install a 10X Attenuator between the Attenuator on the INPUT connector of the Type L Unit, head of the Type 190( ) and the Terminating connect the Attenuator head from a Tektronix R esistor on the INPUT connector of the T yp eL.
- Page 31 y p — ► P A R T S L IS T A N D S C H E M A T IC S A B B R E V I A T I O N S Nano or 10'9 Ceramic Cer.
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Page 32: S E C Tio N 6 Parts List And Schematics
Parts List and Schematics— Type L HOW TO ORDER PARTS Replacement parts are available from or through your local Tektronix Field Office. Changes to Tektronix instruments are sometimes made to accommodate improved com ponents as they become available, and to give you the benefit of the latest circuit im... - Page 33 Parts List — Type L PARTS LIST Values are fixed unless marked Variable. Capacitors Tolerance ± 2 0 % unless otherwise indicated. Tolerance of all electrolytic capacitors are as follows (with exceptions): - 50 V = - 1 0 % + 250%...
- Page 34 Parts List — Type L Capacitors (c o n tin u e d ! Tektronix Ckt. No. Part Number Description S/N Range C6002A 40 juf C6002B 290-063 20 /if > 475 v C6002C C6062 283-003 Discap 150 v C6072 290-069...
- Page 35 Parts List — Type L Resistors (c o n tin u e d ) Tektronix Ckt. No. Part Number Description S/N Range R5112 309-148 1 meg Prec. R5162 309-141 750 k Prec. R5172 309-139 333 k Prec. R5222 309-142 900 k Prec.
- Page 36 Parts List — Type L Resistors [c o n tin u e d ) Tektronix Ckt. No. Part Number Description S/N Range R6132 305-223 22 k R6142 302-470 47 o y2 w R6172 302-474 470 k y2 w 101-1609 302-334...
- Page 37 Parts List — Type L Switches Tektronix Ckt. No. S/N Range Part Number Description Unwired Wired SW5002 *260-173 Rotary AC-DC X I 0 Gain Volts/CM SW5052 *260-172 *262-133 Rotary Electron Tubes 154-084 V5832 56541 V5942 154-084 56541 V6042 154-084 56541...
- Page 38 Parts List — Type L Mechanical Parts List Type L Tektronix Part Number BIN DIN G POST CAP 200-103 BIN DING POST ADAPTER STEM 355-507 BRACKET, VERT. POS. RANGE 406-126 BRACKET, HF PEAKING 406-186 BRACKET, 2% x 3 406-264 BRACKET, % x 2 y 16 x %...
- Page 39 Parts List — Type L Mechanical Parts List (c o n tin u e d ) Tektronix Part Number LOCKW ASHER INT. 210-013 x " / u LU G , SOLDER SE4 210-201 LUG, SOLDER SE6 w /2 holes 210-202...
- Page 40 Parts List — Type L Mechanical Paris List (c o n tin u e d ) Tektronix Part Number SCREW 6-32 5 /]6 Pan HS w/lockwasher 211-534 SCREW , 8-32 212-001 SCREW x 'A FHS Phillips 8-32 212-043 SCREW RHS Phillips...
- Page 41 iR5372 R 5 6 5 2 R 5 2 9 2 R 5 2 2 2 R5162 C5172 R 5 0 9 2 R 5 0 4 2 C 5 0 9 2 C 5 0 4 2 R 5 0 5 2 R 5 7 2 2 7 99 R I G H T S ID E V O L T S / C M S W I T...
- Page 43 MANUAL CHANGE INFORMATION A l Tektro nix, w e co ntin ually strive to keep up with latest electronic developm ents by adding circuit and component improvements to our instruments as soon as they are developed and tested. Sometimes, due to printing shipping req uire...
- Page 45 Apply a 1 kc signal with a P52 cable from a Type 105 Square-Wave Generator to the Attenuator/Standardizer combination on the Type L Plug-In Unit. Adjust the amplitude of the display to about 3.5 cm with the OUTPUT AMPLITUDE control on the Type 105. AdjustC5732 for an optimum flat top.
- Page 46 ■ " i "1 ü...
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