Related Manuals for Tektronix TU-7
Summary of Contents for Tektronix TU-7
- Page 1 MANUAL ( ' ■ p ~ S erial N u m b e r / T ektronix, Inc. S.W. M illikan W ay • P. O. Box 500 • Beaverton, Oregon • Phone Ml 4-01 61 • Cables: Tektronix 070-407...
- Page 2 A ll T e k tro n ix in s tru m e n ts a re w a rra n te d a g a in s t d e fe c tiv e m a te ria ls a n d w o r k m a n sh ip fo r one y e a r.
- Page 3 CONTENTS W a r r a n ty S ection C h a ra c te ris tic s Section 2 O p e ra tin g In stru ctio n s Section 3 C irc u it D e scrip tio n Section 4 M a in te n a n c e Section 5...
- Page 4 • - . - *>'•.- .'•• 'w *vr , - /-»Vw;v’ *»- •••;-wv. : • .^ ;r: './5 ,? fe -^« .j'^*'? ,'2 :.- ^ '.v .r - r : *& V TYPE TU-7 PLUG-IN TEST UNIT ------- SERIAL VERTICAL POSITION...
- Page 5 Tektronix 530-, 540-, or 550- CHOPPED Series Oscilloscopes using 1-series or letter-series vertical plug-in units. The Type TU-7 is the only plug-in unit re Checks oscilloscope for proper operation in the chopped quired for calibrating the oscilloscope.* An input connector mode.
- Page 6 EXT INPUT Connector for applying external signals to the oscilloscope Net W eight vertical system through the Type TU-7. Useful for applying the calibrator signal when setting the gain of the oscillo Approx. 3% lbs. scope vertical amplifier and for inserting signals for cali...
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Page 7: Operating Instructions
To check the amount of dc un balance, a suggested procedure is as follows: The Type TU-7 is calibrated and ready for use as shipped from the factory. 1. Set the TEST FUNCTION switch to COMMON MODE. - Page 8 2. Set both Time/Cm switches to .5 mSec. 3. Set both Triggering Mode switches to Auto, and both Triggering Source switches to Plug-In. 4. Set the Type TU-7 TEST FUNCTION switch to ALTER NATE. 5. Apply a 100-volt peak-fo-peak Calibrator signal to the INPUT connector.
- Page 9 2. Set both Time/Cm switches to .5 mSec. 3. Set both Triggering Mode switches to Auto, and both Triggering Source switches to Plug-In. 4. Set the Type TU-7 TEST FUNCTION switch to ALTER NATE. 5. Apply a 100-volt peak-fo-peak Calibrator signal to the INPUT connector.
- Page 10 Operating Instructions— Type TU-7 5. Carefully focus and check the display. If the waveshape When using the Type TU-7 to couple an input signal to does not show good transient response because of over the oscilloscope vertical amplifier, the deflection factor of shoot, rolloff or bumpiness, proceed with the adjustments the unit is about 0.5 vo!t/cm with the TEST FUNCTION...
- Page 11 General Information under those headings. Fig. 3-1 is a block diagram of the Type TU-7 Plug-In Test Unit. The circuitry of the unit may be separated into three Detailed Description major divisions: the Power Supply Loading Circuit, the Dual- Trace Switching Circuit, and the Pulse Generator Circuit.
- Page 12 100 kc rate. A signal applied to the connecting plug. This signal results in a 4-cm deflection INPUT of the Type TU-7 is ac coupled to pin 1 of the inter on the crt if the gain of the oscilloscope vertical amplifier connecting plug and is displayed by the "on”...
- Page 13 Circuit Description— Type TU-7 Fig. 3 -2 . S im p lifie d schem atic D u a l-T ra ce S w itc h in g c irc u it s h o w in g b asic o p e ra tio n...
- Page 14 Circuit Description— Type TU-7 F!g. 3-3. S im plified schematic diag ram show ing inpu t signa l pa th d u rin g tw o states o f d u al-tra ce sw itching m u ltiv ib ra to r...
- Page 15 Circuit Description— Type TU-7 Fig. 3-4. Tim ing rela tionsh ip o f w aveform s d u ring aite rnate-sw ee p slaving o p e ra tio n oscilloscopes capable alte rnate-sw eep sw itch ing. Sweep rate o f Time Base B is set twice as fa st as Time Base A a n d bo th tim e bases are trig gere d ( p lu g - in ) .
- Page 16 Circuit Description— Type TU-7 Fig. 3 -5 . D u a l-T ra ce S w itc h in g c irc u it s h o w in g o p e ra tio n w ith TEST F U N C T IO N...
- Page 17 Circuit Description— Type TU-7 Fig. 3-6. Timing o f chopped b la n kin g pulses from Type TU-7 lo oscilloscope cathode w ith TEST FUNCTION switch CHOPPED. A second output is produced in the plate circuits of the the current-switching transistors on and off. As these tran...
- Page 18 Circuit Description— Type TU-7 Fig. 3 -7 . S im p lifie d schem atic o f th e Pulse G e n e ra to r c irc u it w ith TEST FU N C T IO N...
- Page 19 Circuit Description— Type TU-7 + 75 v | + 67.5 v + 67 .2 v — 0.6 v + 67 .8 v + 6 7 .5 v + 60 v I Fig. 3-8. M a jo r current p a th du ring rise and top o f pulse w ith TEST FUNCTION sw itch a t + PULSE and AMPLITUDE control fu lly clockwise.
- Page 20 Circuit Description— Type TU-7 current away from the disconnect diodes. The fast switching combinations in the base and emitter circuits. The front- characteristics of the disconnect diodes enable them to cut panel REPETITION RATE switch allows the capacitance in off very fast when the current source is removed, producing...
- Page 21 One way to clean the interior is by vacuum and/or low- Many components in the Type TU-7 are mounted in a pressure compressed air (high-velocity air could damage particular way to reduce stray inductance and capacitance.
- Page 22 Fig. 4-1 shows an assembled ceramic terminal strip. Re placement strips with studs attached are supplied under a If trouble is encountered in the Type TU-7, first perform single part number and spacers under another number. The a visual inspection of the entire unit. If a visual inspection original spacers may be reused if undamaged.
- Page 23 Maintenance— Type TU-7 TABLE 4-1 Resistance Measurement Type o f Meter: Type o f Meter: M anufactured By: VO M * M odel N o.: Type TU-7 Serial N o.: A pproxim ate TEST FUNCTION Ohms Resistance Ohms Switch Resistance...
- Page 24 The following items of equipment or equivalent are re Triggering -(-Internal quired for a complete calibration of the Type TU-7. 7. Set the Type TU-7 controls as follows: 1. Indicator oscilloscope, Tektronix 530-, 540-, or 550- Series. Must operate properly and be calibrated for NOTE vertical gain and sweep timing.
- Page 25 Adjust the Type TU-7 VARIABLE control for 4 cm of vertical deflection on the crt. Fig. 5-2. Left side o f Type TU-7 showing c a lib ra tio n adjustm ents d. Connect the test oscilloscope probe to pin 5 of the and test points.
- Page 26 13. Adjust PULSE DC LEVEL R30 identify the lower trace at slow sweep rates. Due to the ac coupling in the Type TU-7, both traces will a. Connect the dc voltmeter between chassis ground tend to curve toward the electrical center of the and the junction of R54 and R41 (see Fig.
- Page 27 Insert the special plug-in extension [item 10 under “ Equipment Required") in the plug-in jack. e. Plug the Type TU-7 into the extender. f. Turn on the indicator oscilloscope power. {If the . indicator oscilloscope has a plug-in sensing switch in the plug-in compartment, pull forward on the switch plunger.)
- Page 28 If a part you have ordered has been replaced with a new or improved part, your local Tektronix Field Office w ill contact you concerning any change in part number. ABBREVIATIONS AND SYMBOLS...
- Page 29 Parts L is t-T y p e TU-7 EXPLODED VIEW...
- Page 30 Parts Ust— Type TU-7 EXPLODED VIEW 5ERIAL/MODEL NO. REF. PART DESCRIPTION N O . DISC. EFF. 352-002 HOLDER, fuse assembly - - - - Consisting Of: CAP, fuse, 3AG 200-015 210-873 WASHER, rubber 352-010 HOLDER, fuse, 3AG NO NUMBER NUT, fuse holder...
- Page 31 Parts List— Type TU-7 EXPLODED VIEW (Cont'd) SERIAL NO. REF. PART DESCRIPTION EFF. DISC. 406-998 BRACKET, aluminum, switch ..Mounting Hardware For Bracket: 210-457 NUT, keps, 6-32 x 5 / t< ! inch 376-007 COUPLING, aluminum, 1 inch long - - - .
- Page 32 Parts List— Type TU-7 EXPLODED VIEW (Cant'd) SERIAL/MODEL N O . REF. DESCRIPTION PART NO. EFF. DISC. ROD, frame, % x 8% inch tapped 8-32 384-0508-00 ROD, frame, % x 87 / e inch tapped 8-32 384-0631-00 Mounting Hardware For Each: (not included)
- Page 33 Parts List — Type TU-7 ELECTRICAL PARTS Values are fixed unless marked Variable. Tektronix Ckt. No. Part No. Description S /N Range Capacitors - Tolerance ± 2 0 % unless otherwise indicated. Tolerance of all electrolytic capacitors as follows (with exceptions): 3V —...
- Page 34 Diodes Tektronix Ckt. No. Part No. Description S /N Range 152-024 Zener 1N3024B 152-024 Zener 1N3024B *152-107 Silicon Replaceable by 1N647 *152-061 Silicon Tek Spec D5 6 *152-107 Silicon Replaceable by 1N647 D 64 Use *152-193 Tek Spec GaAs Use *152-193...
- Page 35 Parts List — Type TU-7 Resistors (Conf'c/J Tektronix Ckt. No, Part No. S /N Range Description 302-153 y2 w 322-097 100 O Prec ’A W 316-102 316-273 27 k y4 w 315-220 22 £2 ’A w 302-153 ’A w 321-122...
- Page 36 Resistors fConf’d) Tektronix Range Description Ckt. No. Part No. 303-333 33 k RI00 301-184 180 k y2 w R101 302-564 560 k R102 R104 1.5 meg y2 w 301-155 304-224 220 k R106 10 w 308-024 R107 101-199 308-108 R109...
- Page 37 W AV E FO R M S a n d V O LTA G E R EAD IN G S w e re o b ta in e d u n d e r fo llo w in g c o n d itio n s : CONTROLS SETTINGS VARIABLE...
- Page 39 CIRCUIT DIAGRAM < Q ° £...
- Page 40 MANUAL CHANGE INFORMATION A t Tektronix, we continually strive to keep up w ith latest electronic developments by adding circuit and component improvements to our instruments as soon as they are developed and tested. Sometimes, due to printing and shipping require...
- Page 41 TYPE 1M1 TENT S/ 1^10 Page 1 of 2 PAROS LIST CORRECTIONS REMOVE" 285-0026-00 25 V ADD: 521-0615-00 Prec 5.05 k 1 / 8 502-0222-00 2.2 k 1/2 W CHANGE 285-0627-00 100 V .0055 M-E 285-0685-OO .0 2 2 100 V -0625-00 100 V - 2 8 5...
- Page 42 TYPE 1M1 TENT S/N 1^10 Page 2 of 2 SCHEMATIC CORRECTION P A R T IA L C IR C U IT D IA G R A M M 9 7 3 1 /1 2 6 5...
- Page 43 Parts List Correction Change to : R109 3 0 8 -0 0 9 3 -0 0 12 K M 9 7 3 3 /H 6 5...
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