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Tektronix Z Instruction Manual
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Tektronix Z Instruction Manual

Tektronix Z Instruction Manual

Plug-in unit
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I V l / X I N I U A L
Tektronix, Inc.
S.W. M illikan W ay
•
P. O. Box 500
•
Beaverton, Oregon
•
Phone Ml 4-0161
•
Cables: Tektronix
Tektronix International A. G.
Terrassenweg 1A
•
Zug, Switzerland
•
PH .042-49192
•
Cable: Tekintag, Zug Switzerland
•
Telex 53.574
070-251

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Summary of Contents for Tektronix Z

  • Page 1 S.W. M illikan W ay • P. O. Box 500 • Beaverton, Oregon • Phone Ml 4-0161 • Cables: Tektronix Tektronix International A. G. Terrassenweg 1A • Zug, Switzerland • PH .042-49192 • Cable: Tekintag, Zug Switzerland • Telex 53.574...

  • Page 2: Warranty

    WARRANTY A ll Tektronix instrum ents are w a rra n te d a g a in st defective m aterials and w o rk m a n ­ ship fo r one ye ar. Tektronix transform ers, m a n ufactured in our own p la n t, are w a r­...

  • Page 3: Table Of Contents

    O p e ra tin g Instructions Section 2 C ircuit Description Section 3 M aintenance Section 4 C a lib ra tio n Section 5 Accessories Section 6 Parts List and Diagram s Section 7 ® Typ e z...
  • Page 4 TYPE Z PLUG-IN UNIT CALIBRATED DIFFERENTIAL CO M PACTO R . 1 0 0 0 CM. DYNAMIC SCALE LENGTH /UUU V.f'l- " ■ ■ ’ — COMPARISON VOLTAGE -x VOLTS/CM (ATTENUATIO N! V A R . ATTEN PUSH TO j...

  • Page 5: Specifications

    G eneral Info rm a tio n V ertical D eflection Factors 0.05 to 25 volts per centimeter in nine calibrated steps; The Type Z Plug-In Unit is a calibrated differential com­ also continuously variable (uncalibrated) between steps and parator preamplifier designed for use in all Tektronix up to 60 volts per centimeter.
  • Page 6 Comparison Voltage Drift Because of the wide dynamic amplitude capabilities of the Z Unit, transient response is a function of signal amplitude. Less than 0.1 % per 100 hours operation. Temperature compensated over normally expected tem­...

  • Page 7: O P E Ra Tin G Instructions

    (that is, to obtain a straight- line appearance of the trace). A front-panel view of the Type Z Unit is shown in Fig. 2-1. 3. Variable Attenuator Balance In addition, a brief functional description is given of the Any vertical shift of the oscilloscope trace when the VAR.
  • Page 8 Operating Instructions — Type Z VAR, ATTEN.— V a rie s th e v e r ti­ P o la rity — Selects th e c o m p a r­ ca l d e fle c tio n fa c to rs b e tw e e n ison v o lta g e p o la rity .
  • Page 9 (see Fig. 2-3). Fig. 2 -2 . Left re a r side v ie w o f th e Z U n it s h o w in g lo c a tio n o f th e A M P DC BAL a d ju s tm e n t.
  • Page 10 Control settings similar 0.5 millisec/cm. to (a ) except Mode is — B ONLY. Fig. 2 -4 . C om m o n -m od e re je c tio n b y th e Z U n it. 2 -4...
  • Page 11 The calibrated comparison voltage, which has a range of 0 to 100 volts, may be added (differentially) 1. Large signal response of the Z Unit as a differential am­ to either input signal. plifier is shown in Table 2-1.
  • Page 12 The voltage difference between the two points is read from the Helidial and the setting of the Range switch. When the Z Unit is used to make any dc voltage measure­ AC-DC Voltage Measurements Exceeding ± 1 0 0 ments, it is first necessary to establish a reference line on the screen of the oscilloscope.
  • Page 13 Fig. 2 -6 . Left side v ie w o f th e Z U n it s h o w in g th e lo c a tio n o f th e ATTEN TEST PT.
  • Page 14 INPUT INPUT ■ »...
  • Page 15 OUTPUT OUTPUT 1 .. CATHODE PIN 1 FOLLOWER Q 7 6 4 4 V 7663A £i§ OUTPUT OUTPUT CATHODE AMPLIFIER PIN 3 FOLLOWER Q 8 6 4 4 V7663B OUTPUT CATHODE OUTPUT AMPLIFIER STAGE FOLLOWER STAGE •OUTPUT...

  • Page 16: C Ircuit Description

    D E S C R I P T I O N BLOCK DIAGRAM DESCRIPTION DETAILED CIRCUIT DESCRIPTION Fig. 3-1 shows the block diagram for the Type Z Unit. Comparison Voltage Regulator Signals applied to A Input and B Input connectors pass through the VOLTS/CM Attenuator switches to the grids Regulation of both the + and —...
  • Page 17 Signals applied to input connectors A and B of the Type practical purposes, no measurable change in current occurs Z Unit go to the AC-DC switches which either include, during these voltage excursions. or short across, the coupling capacitors. The signals then...
  • Page 18 Circuit Description — Type Z sistor, Q8672. The bias of V7618A is the collector-to-base As in the Input Cathode Follower stage, the screen volt­ voltage of Q7618 plus the drop across Q8672. age for the Differential Amplifier stage is “ bootstrapped"...

  • Page 19: M Aintenance

    When replacing any o f the components inside the Useful information concerning the replacement of im­ turret, the lead lengths and parts placement are portant parts in the Z Unit is given in this portion of the critical. Duplicate the original lead lengths and manual.
  • Page 20 Fig. 4 -1 . V O L T S /C M tu rre t a tte n u a to r rem oved fro m th e Z U n it. 3. To remount the turret body, align the holes in the end or hard rubber mallet to knock the yokes out of the chassis.
  • Page 21 3% silver. This type of solder is All wiring used in the Z Unit is color coded. This greatly used often for work on etched-circuit boards and should simplifies circuit tracing in the instrument.
  • Page 22 Z Unit is operating in a nonlinear region. (see Fig. 5-3) to use. To restore the Z Unit to proper operation, perform steps If the trouble has still not been corrected, apply a known 2. 5 and 6 in the Calibration procedure.
  • Page 23 VOLTS/CM switch have distortion. If the Z Unit is the cause of resistors overheating in the oscillo­ distortion only occurs on one or two ranges, check the scope power supply, and possibly in the unit as well, re­...

  • Page 24: C A Lib Ra Tio N

    7. Plug-in cable extension, Tektronix Part No. 012-038. the procedure. 8. Plug-in extension. Type EP54, Tektronix Part No. 013-019. For this procedure, the Z Unit should be used in con­ 9. 52-ohm coaxial cable, Tektronix Part No. 012-001. junction with a properly calibrated Tektronix Type 540- Series oscilloscope.
  • Page 25 Fig. 5 - 2 . A n o th e r v ie w o f th e Z U n it s h o w in g lo c a tio n o f re m a in ­...
  • Page 26 2. Output Cathode Follower Balance Remove the plug-in cable extension and insert the Z Unit directly into the oscilloscope plug-in compartment. Tighten the securing rod to hold the unit fully plugged in.
  • Page 27 Table 5-2. “ L" pad through the 24-/ipf capacitance standardizer to the A input connector on the Z Unit. Set the Mode switch TABLE 5-2 to A ONLY and both VOLTS/CM switches to .05.
  • Page 28 Generator (or equivalent) output connector. Connect the other end of the cable through a 52-ohm termination to the B input connector on the Z Unit. Set the generator ■ 1 11 output frequency to approximately 1 me and adjust the amplitude for about 3.5 cm of vertical deflection.
  • Page 29 Disconnect the square-wave generator cable and the Fig. 5 -8 . Top v ie w o f th e Z U n it s h o w in g lo c a tio n o f step 17 test termination.
  • Page 30 Disconnect the voltmeter, remove the plug-in extension COMPARISON VOLTAGE Helidial. At null, the Helidial and insert the Z Unit directly into the oscilloscope plug-in dial reading should not be further than V2 minor division compartment. Install the left side panel on the oscilloscope.
  • Page 31 H O W TO ORDER PARTS Replacement parts are available through your local Tek­ tronix Field Office. Improvements in Tektronix instruments are incorporated as soon as available. Therefore, when ordering a replacement part it is important to supply the part number including any suffix, instrument type, serial number, plus a modification number where applicable.
  • Page 32 % £ g ^ W on W V V W l> =w ound f A ppro„m ols X 0 0 ° add'd Z Z 000x^ oj ; ^ 1^ . '000-000 mial n a m b d e A s , . t h ,s (M o d .
  • Page 33 309-148 R 7608 Prec. 1 meg 316-470 47 n R 7610 316-331 R 7614 33 on 316-470 R 7615 y4 w 309-327 R 7618 101-2509 750 a Prec. 309-083 R 7618 Prec. 251 Oup © PARTS LIST — TYPE Z...
  • Page 34 750 0 Fixed R8618 ’A w Fixed Prec. 309-083 R8618 2510-up Comp. 301-474 R8621 470 k Fixed ’A w 316-104 R8622 100 k ’A w 47 a 316-470 R8623 ’A w 6 - 2 © PARTS LIST — TYPE Z...
  • Page 35 2N1303 Q7674 2510-up 151-087 J3138 151-040 Q8618 101-2509 2N1302 151-058 2510-up RT5204 Q8618 151-040 Q8638 101-2509 2N1302 151-058 Q8638 2510-up RT5204 t Below S/N 3564 order for wired turret body *263-004 or *263-005. © I PARTS LIST — TYPE Z...
  • Page 36 V7634 and V8634. Furnished as a unit. NOTE: Four ferrite beads {ferramic suppressors) are found in the Type Z Unit, two ahead of each turret attenuator. If re­ placement of these becomes necessary, order by the Tektronix Part Number 276-507.
  • Page 37 Resistors are fixed, composition, ± 1 0 % unless otherwise indicated. 316-470 R407C X261-up 47 a 309-140 R408C 500 k y2 w Prec. 318-004 R408E 1 meg Prec. Prec. 309-288 R409C 800 k 318-032 Prec. R409E 250 k 6 -5 PARTS LIST — TYPE Z ® I...
  • Page 38 283-547, 283-556 and 283-557 are installed at the factory by a special process. If replace­ ment is necessary, order a wired turret body, part number 204-128 (S/N 3564-up). Below S/N 3564 order 263-004 or 263-005 for wired turret body. PARTS LIST — TYPE Z...
  • Page 39 Type Z Mechanical Parts List Part Number Tektronix BODY, CAP. BARREL FOR TURRET ATTEN. SN 101-3563 204-024 BODY, CAP. BARREL FOR TURRET ATTEN. SN 3564-up 204-127 BRACKET, ALUM., POT, .064 x 1 % x 2% x '/2 406-584 BRACKET, ALUM., TRANSISOR MTG., .050 x 7 / u x 1% 406-585 BRACKET, ALUM., SWITCH, .040 x 2% x 1 ’/ 2...
  • Page 40 SOCKET, 9 PIN UHF MIN. 136-072 SOCKET, 4 PIN, TRANSISTOR 136-095 SOCKET, TIP, JACK, BLACK NYLON 136-098 SPACER, NYLON '/u (for ceramic strip) 361-007 SPACER, NYLON 5 /, 4 (for ceramic strip) 361-009 PARTS LI ST— TYPE Z ® I...
  • Page 41 TAG, SERIAL NO. INSERT 162-504 TUBING, PLASTIC INSUL., # 2 0 black (skein) 210-840 WASHER, STEEL, .390 x 9 /u x .020 210-850 WASHER, STEEL, .093 x */3 2 x .020 210-894 WASHER, POLY 6 -9 PARTS LIS T— TYPE Z ®...
  • Page 42 —W v — R 4 0 7 0 4 0 7 7 " ® 0 4 I0 A y800K > -*■ C 4 IO C C 4 0 9 C SEL. -T- 4 0 9 1 C 408D S .fe R409E>...
  • Page 43 & L A D S ^ T U R R E T 56B4 < L763 2 R 7660\l—» ‘/z ^ A T T '.O l A T T E N U A T O R — A “ V c 2.0 - 2.7/uA...
  • Page 44 M A N U A L CHANGE INFORMATION At Tektronix, we continually strive to keep up with 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...