Tektronix 634 User manual

Tektro nix
COMMITTED TO EXCELLENCE
634 MONITOR
WITH OPTIONS
OPERATORS
INSTRUCTION MANUAL
I

Tektroni x
COMMITTED TO EXCELLENCE
634 MONITOR
WITH OPTIONS
OPERATORS
INSTRUCTION MANUAL
Tektronix, Inc.
P.O. Box 500
Be verton, Oregon
97077
Serial Number ______________________
070-2560-00
First Printing JULY 1978

WARRANTY
This Tektronix product is w rr nted g inst defective m teri l s nd
workm nship, under norm l use, for period of one ye r from d te
of initi l shipment. Tektronix will rep ir or repl ce, t its option,
those products determined to be defective within the w rr nty
period nd returned, freight prep id, to Tektronix Service Center.
There is no implied w rr nty for fitness of purpose.
Ple se direct ll requests for service or repl cement p rts to the
ne rest Tektronix Service Center or Field Office; include the type or
p rt number of the product nd its seri l number.
Copyright © 1978 by Tektronix, I nc. All rights reserved.
Contents of this public tion m y not be reproduced in ny
form without the permission of Tektronix, I nc.
Products of Tektronix, I nc. nd its subsidi ries re
covered by U.S. nd foreign p tents nd/or pending
p tents.
TEKTRONIX, TEK, SCOPE-MOBILE, TELEQUIPMENT,
nd re registered tr dem rks of Tektronix, inc.
Printed in U.S.A. Specific tion nd price ch nge
privileges re reserved.

634 Oper tors
TABLE OF CONTENTS
PAGE
LIST OF ILLUSTRATIONS ..............................................................
LIST OF TABLES ............................................................................
OPERATORS SAFETY INFORMATION ......................................... i
SECTION 1 GENERAL INFORMATION
INTRODUCTION ................................................................ 1-1
INSTRUMENT DESCRIPTION .......................................... 1-1
SPECIFICATION ....................................................................... 1-2
STANDARD ACCESSORIES............................................ 1-5
PACKAGING FOR SHIPMENT ........................................ 1-5
SECTION 2 OPERATING INSTRUCTIONS
AMBIENT TEMPERATURE CONSIDERATIONS ............. 2-1
CONTROLS AND CONNECTORS ................................... 2-1
INPUT SIGNAL REQUIREMENTS ................................... 2-1
OPERATORS CHECKOUT PROCEDURE ........................ 2-1
TEST EQUIPMENT REQUIRED .................................. 2-1
PRELIMINARY SETUP ................................................ 2-1
DISPLAY FUNCTIONS ................................................ 2-5
SECTION 3 INSTRUMENT OPTIONS
LIST OF ILLUSTRATIONS
FIGURE
NO. PAGE
Frontis 
piece 634 Monitor (Option 23) Fe tures ......................... iv
1- 1 Dimension l dr wing (St nd rd
instrument p ck ge) ................................................ 1-6
1- 2 Dimension l dr wing (Option 20 only) ..................... 1-7
2- 1 Front p nel controls nd indic tors ........................... 2-2
2-2 Re r-p nel controls nd connectors ....... .............. 2-3
2-3 Option 20 re r-p nel controls nd
connectors ................................................................ 2-4
LIST OF TABLES
TA LE
NO.
PAGE
1-1 Electric l Ch r cteristics ............................................ 1-2
1-2 Environment l Ch r cteristics ................................... 1-4
1-3 Physic l Ch r cteristics .............................................. 1-4
3-1 Option Inform tion Loc tor ....................................... 3-2

634 Oper tors
OPERATORS SAFETY INFORMATION
The following gener l s fety inform tion pplies to ll oper tors nd service personnel. Specific w rnings will be found
throughout the m nu l where they pply nd should be followed in e ch inst nce.
WARNING st tements identify conditions or pr ctices which could result in person l injury or loss of life.
CAUTION st tements identify conditions or pr ctices which could result in d m ge to the equipment or other property.
The word DANGER on the equipment identifies re s of immedi te h z rd which could result in person l injury or loss
of life.
The following s fety symbols m y ppe r on the equipment:
CAUTION — R efer to m nu l
DANGER — High volt ge
Protective ground (e rth) termin l
Other w rning symbols where they pply.
AC POWER SOURCE AND CONNECTION
This instrument operates from a single-phase power source and has a three-wire power cord with a two-
pole, three-terminal grounding-type connector. The voltage to ground (earth) from either pole of the power
source must not exceed the maximum rated operating voltage, 250 volts.
Before ma ing connection to the power source, a qualified service person should verify that the instrument is
set to match the voltage of the power source and has a suitable two-pole, three-terminal grounding-type
connector.
GROUNDING THE INSTRUMENT
This instrument is safety class 1 equipment (IEC* designation). Safety class 1 equipment has a 3-wire power
cord with a 3-contact plug for connection to the power source and to protective ground. The plug protective-
ground contact connects (through the cord protective-grounding conductor) to the accessible meta! parts of
the equipment. For electric-shoc protection, insert this plug into a soc et outlet that has a securely grounded
protective-ground contact.
For medical-dental applications (to assure grounding integrity) the hospital-grade input plug must be inserted
only into a mating hospital-grade receptacle with a grounding contact.
To confirm that the soc et-outlet ground contact is securely grounded, refer to qualified service personnel.
TEC: International Electrotechnical Commission

634 Oper tors
MEDICAL-DENTAL APPLICATIONS
Do not use the VIDEO INPUTS for direct patient connection. Signal currents at these connectors, as well as
lea age currents, may exceed values considered non-hazardous for direct patient connection.
Although this instrument is not to be used for direct patient connection, interconnecting this Monitor with
other equipment can result in application of excessive current to the patient. It is extremely important that
the equipment be interconnected in accordance with NFPA 76B-T, Tentative Standard for the Safe Use of
Electricity in Patient Care Areas of Health Care Facilities, section 3038, "Signal Transmission Between
Appliances". Also refer to NFPA 70, National Electrical Code, paragraphs 517-120 through 517-122.
Do not operate this instrument in the presence of flammable gases or anesthetics. Explosion can result from
operation in such an environment.
USE THE PROPER FUSE
Refer fuse replacement to qualified service personnel only. To avoid electric shoc and fire hazard, use only
the fuse specified in the parts list for your instrument and which is identical in the following respects.
A. Type — Slow blow, fast blow, etc.
B. Voltage rating — 250 V, etc.
C. Current rating.
DO NOT REMOVE PROTECTIVE COVERS
High-voltage is present inside the instrument. To avoid electric shoc , operating personnel must not remove
protective covers. Component replacement and internal adjustments must be made by qualified service
personnel only.
LIMIT INPUT SIGNAL VOLTAGE
To avoid electric-shoc hazard and to protect the instrument, do not apply input signals of greater than 5 volts
(dc + pea ac).
PREVENT IMAGE BURN-IN ON CRT PHOSPHOR
To avoid damaging the c rt phosphor, do not allow a stationary bright image to remain on the screen any
longer than necessary.

634 Oper tors
634 MONITOR (OPTION 23) FEATURES
The 634 Monitor utilizes m gnetic deflection r ster sc n to provide 9 x 12 video displ y re on the crt. The 634 is well
suited for m ny displ y pplic tions in ultr sonic detection systems, electron microscope systems, r di tion nd therm l
sc nning systems, speech ther py, mech nic l pressure, volume nd vibr tion n lysis, nd medic l biophysic l
systems. The 634 m y lso be used to provide video displ ys of lph -numeric nd gr phic inform tion from
me surement systems, computers, nd other d t -tr nsmission systems. The re r p nel VIDEO INPUT connectors
provide me ns to oper te sever l 634 Monitors from single video source.
The extern l physic l dimensions of the 634 Monitor lends itself to e sy r ckmounting to dj cent equipment.
iv

Section 1 — 634 Oper tors
GENERAL INFORMATION
INTRODUCTION
The Oper tors M nu l cont ins inform tion necess ry to
effectively oper te the 634 Monitor nd is divided into
three sections: Section 1 provides p ck ging for
shipment inform tion, specific tions, nd list of
st nd rd ccessories. Section 2 cont ins oper ting
inform tion. Inform tion concerning v il ble options for
the 634 Monitor is loc ted in section 3.
WARNING
The Instruction M nu l cont ins ten sections. Oper ting
inform tion is covered in the first two sections, servicing
inform tion is covered in the rem ining eight sections.
Schem tic di gr ms re loc ted t the re r of the m nu l
nd c n be unfolded for reference while re ding other
p rts of the m nu l. The reference design tors nd
symbols used on the schem tic di gr ms re defined on
the first p ge of the Di gr ms nd Circuit Bo rd
Illustr tions section. Abbrevi tions used in the m nu ls,
except in the p rts list nd schem tic di gr ms, comply
with the Americ n N tion l St nd rds Institute Y1.1-
1972 public tion. The p rts list is computer printout
nd uses computer supplied bbrevi tions.
INSTRUMENT DESCRIPTION
The 634 Monitor is comp ct, solid-st te instrument
with excellent resolution, providing video displ y of
inform tion input to the VIDEO INPUT connectors on the
re r p nel.
High voltage is present inside the instrument.
To avoid electric shoc , operating personnel
must not remove the protective covers.
Component replacement and interna!
adjustments must be made by qualified
service personnel only.
Video sign ls connected to the VIDEO INPUT connector
re mplified by the Input nd Video Output Amplifiers to
drive the crt control grid.
The Input Amplifier lso supplies synchroniz tion
sign l to the Vertic l nd Horizont l R mp Gener tors.
The vertic l nd horizont l r mps re then geometric lly
sh ped nd mplified to drive the electrom gnetic
deflection yokes.
Sign l s mples from the Vertic l R mp Gener tor nd
Horizont l Yoke Driver provide retr ce bl nking to the crt
c thode. Screen bl nking c n be chieved by supplying
zero input level to the re r-p nel TTL BLANKING
connector.
The Dyn mic Focus circuit provides focus correction for
the displ y when the crt be m is deflected from crt
center. Thus, by v rying the volt ge to the crt focus
element, the Dyn mic Focus Circuit compens tes for
geometric defocusing.
The High-Volt ge nd Low-Volt ge Power Supplies
provide ll the volt ges necess ry for oper tion of this
instrument.
1-1

Gener l Inform tion — 634 Oper tors
SPECIFICATION
The electric l specific tions listed in T ble 1-1 pply when the following conditions re met: (1)The instrument must
h ve been djusted t n mbient temper ture between +20° nd +30°C (+68° nd +86°F), (2) the instrument must be
oper ting in n mbient temper ture between 0° nd +50° (+32° nd +122°F), nd (3) the instrument must h ve been
oper ting for t le st 20 minutes.
TABLE 1-1
Electric l Ch r cteristics
Ch r cteristic
Perform nce Requirement
VIDEO INPUT SIGNAL
Sync Pulse
Neg tive (neg tive bl ck level).
Amplitude 0.35 V to 2 V pe k-to-pe k (m x.).
Return Loss 46 dB to 5 MHz with intern l 75 Q termin tion
nd power on.
M ximum Nondestructive Input Volt ge
±5 V pe k.
B ndwidth
1 Hz to t le st 10 MHz.
RASTER
Sweep R te
Vertic l 60 r mps/second, sync pull-in within 2%.
Horizont l
15,750 r mps/second, sync pull-in within 2%.
Line rity
Displ y Are
9 cm di meter circle centered within the
9 x 12 cm gr ticule re .
Within 0.5% of the height (0.045 cm or 0.018 inch).
9 x 12 cm gr ticule re excluding the
centered 9 cm di meter circle.
Within 1% of the height (0.09 cm or 0.036 inches).
Line rity (Option 1 Only)
Displ y Are
9 cm di meter circle centered within the
9 x 12 cm gr ticule re .
Also refer to Resolution (Option 1).
Within 1% of the height (0.09 cm or 0.036 inches).
9 x 12 cm gr ticule re excluding the
centered 9 cm di meter circle.
Within 2% of the height (0.018 cm or 0.07 inches).
1-2

Gener l Inform tion — 634 Oper tors
Ch r cteristic
TABLE 1-1 (CONT.)
Electric l Ch r cteristics
Perform nce Requirement
VIDEO AMPLIFIER
DC Restor tion
Referenced to b ck porch
CRT DISPLAY
Acceler tion Potenti l
15 kV, within 5%, 1% regul tion.
He ter Volt ge
6.2 V @ 103 mA, within 5 %.
F cepl te
Fl t.
Qu lity Are
12 cm horizont lly by 9 cm vertic lly.
Di gon l (Of Qu lity Are )
15 cm (5.91 inches).
Deflection Angle
56 gr ds (50.4°).
Phosphor
P45.
Brightness
At le st 150 fl.
Resolution
1100 lines center re @ 30 fl.
Corner Defocus
650 lines t 30 fl. 900 lines t 30 fl on 9 cm circle.
Resolution (Option 1 Only)
650 lines t screen center. 550 lines on 9 cm circle.
300 lines on 9 x 12 cm corners. Also refer to Line rity
(Option 1).
POWER SOURCE
Power Consumption (1 20 V AC, 60 ~)
50 W, 0.5 A m ximum.
Line Volt ge R nge
110 V AC (Nomin l)
90 to 110 V c.
99 to 121 V c.
108 to 132 V c.
220 V AC (Nomin l)
180 to 220 V c.
198 to 242 V c.
216 to 250 V c.
Line Frequency R nge
48 to 440 Hz.
Power Requirements From An Extern l
Source (Option 20 Only)
DC Supplies
+9 V within 10%, 300 mA, 1 V m x ripple. +23 V within
10%, 1 A, 6 V m x ripple. -22 V within 10%, 700 mA,
3 V m x ripple.
1-3