Tektronix TSG95 User Manual
User Manual
TSG95 Pathfindert
PAL/NTSC Signal Generator
070-8916-07
www.tektronix.com
Copyright © Tektronix. All rights reserved. Licensed software products are
owned by Tektronix or its subsidiaries or suppliers, and are protected by
national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and
pending. Information in this publication superc edes that in al l previously
published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14200 SW Karl Braun Dri ve
P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and techni cal support:
H In North America, call 1-800-833-9200.
H Worldwide, visit www.tektronix.com to find contacts in your area.
Warranty 2
Tektronix warrants that this product will be free from defects in materials and
workmanship for a period of one (1) year from the date of shipment. If any such product
proves defective during this warranty period, Tektronix, at its option, either will repair the
defective product without charge for parts and labor, or will provide a replacement in
exchange for the defective product. Parts, modules and replacement products used by
Tektronix for warranty work may be new or reconditioned to like new performance. All
replaced parts, modules and products become the property of Tektronix.
In order to obtain service under this warranty, Customer must notify Tektronix of the
defect before the expiration of the warranty period and make suitable arrangements for the
performance of service. Customer shall be responsible for packaging and shipping the
defective product to the service center designated by Tektronix, with shipping charges
prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to
a location within the country in which the Tektronix service center is located. Customer
shall be responsible for paying all shipping charges, duties, taxes, and any other charges for
products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or
improper or inadequate maintenance and care. Tektronix shall not be obligated to furnish
service under this warranty a) to repair damage resulting from attempts by personnel other
than Tektronix representatives to install, repair or service the product; b) to repair damage
resulting from improper use or connection to incompatible equipment; c) to repair any
damage or malfunction caused by the use of non-Tektronix supplies; or d) to service a
product that has been modified or integrated with other products when the effect of such
modification or integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE
PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED.
TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE
PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE
CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS
VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX
OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH
DAMAGES.
Table of Contents
General Safety Summary v............................
Getting Started 1.....................................
Supplying Power 2....................................
Connecting the TSG95 3...............................
Keypad and Display Conventions 4.......................
Definitions 5.........................................
Preliminary Settings 6.................................
Choose the Video Standard/Signal Set 6................
Set the Battery Type 6...............................
Enable (Disable) Auto Power Down 6..................
Other Settings 7......................................
Operating Basics 9...................................
Using Y our TSG95 9..................................
Outputting Test Signals 11............................
Outputting Audio Tones 12............................
Selecting the Audio Frequency 12......................
Setting the Audio Tone Level (Amplitude) 13.............
Inserting Channel--ID Clicks in the Audio 13.............
Inserting ID Messages 13.............................
Editing ID Messages 14..............................
Positioning ID Messages 14...........................
Saving ID Messages 15...............................
Recalling ID Messages 15............................
Setting up an ID Cycle 16.............................
Saving (Storing) Presets 17............................
Recalling Presets 18.................................
Reference 19.........................................
The Utility Menu 19....................................
Creating/Editing the User Signal Set 22....................
The Calibration Submenu 25.............................
Characteristics 29.....................................
Safety Standard Compliance 29...........................
EC Declaration of Conformity --- EMC 30................
Specification Tables 31..................................
PAL Waveform Diagrams 46.............................
NTSC Waveform Diagrams 59............................
TSG95 Pathfinder™ User Manual
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Table of Contents
NTSC JAPAN (No Setup) Waveform Diag rams 70............
Replaceable Parts 73...................................
User Service 75.......................................
Battery Hints 75.......................................
The BATTERY LOW Message 75......................
Low Battery Shutdown 75............................
Preventive Maintenance 76..............................
List of Figures
Figure 1: PAL 75% Color Bars 46.......................
Figure 2: PAL 100% Color Bars 46......................
Figure 3: PAL 75% Red and Red Field 47.................
Figure 4: PAL 100% Red 47............................
Figure 5: PAL Convergence (vertical lines) 48.............
Figure 6: PAL Convergence (horizontal lines) 48...........
Figure 7: PAL Pluge 49................................
Figure 8: PAL Green Field 49...........................
Figure 9: PAL Safe Area 50.............................
Figure 10: PAL Blue Field 51...........................
Figure 11: PAL 100% Flat Field and Bounce (High) 51......
Figure 12: PAL 50% Flat Field 52.......................
Figure 13: PAL 0% Flat Field and Bounce (Low) 52........
Figure 14: PAL Multiburst 52...........................
Figure 15: PAL Reduced Sweep 53.......................
Figure 16: PAL 5-Step (Gray Scale) 53...................
Figure 17: PAL Modulated 5-Step 54.....................
Figure 18: PAL Matrix Signal — CCIR 17 54..............
Figure 19: PAL Matrix Signal — CCIR Line 330 55........
Figure 20: PAL Matrix Signal — CCIR Line 331 55........
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TSG95 Pathfinder™ User Manual
Table of Contents
Figure 21: PAL Matrix Signal — CCIR 18 56..............
Figure 22: PAL Matrix Signal — Sin(x)/x 56...............
Figure 23: PAL Matrix Signal — 15 kHz Square Wave 57...
Figure 24: PAL Matrix Signal — Shallow Ramp 57.........
Figure 25: PAL Matrix Signal — UK ITS 1 58.............
Figure 26: PAL Matrix Signal — UK ITS 2 58.............
Figure 27: NTSC 75% Color Bars 59.....................
Figure 28: NTSC Convergence Components 59............
Figure 29: SMPTE (NTSC) Color Bar Components 60......
Figure 30: NTSC Safe Area Signal Components 61.........
Figure 31: NTSC Red Field 63..........................
Figure 32: NTSC 30 IRE and 50 IRE F lat Fields 63.........
Figure 33: NTSC 100 IRE Flat Field, Field Square Wave,
and Bounce (High) 64...............................
Figure 34: NTSC Black Burst 64.........................
Figure 35: NTSC 5-Step Staircase (Gray Scale ) 65..........
Figure 36: NTSC Multiburst 65.........................
Figure 37: NTC7 (NTSC) Composite 66...................
Figure 38: NTC7 (NTSC) Combination 66.................
Figure 39: FCC (NTSC) Composite 67....................
Figure 40: NTSC Cable Multiburst 67....................
Figure 41: NTSC Cable Sweep 68........................
Figure 42: NTSC SIN(X)/X 68...........................
Figure 43: NTSC Matrix 69.............................
Figure 44: NTSC 0 IRE No Burst 69......................
Figure 45: NTSC Bounce (Low) 69.......................
Figure 46: SMPTE (NTSC) Color Bars, No Setup 70........
Figure 47: NTSC 75% Color Bars, No Setup 71............
Figure 48: NTSC Red Field, No Setup 71..................
Figure 49: NTSC Black Burst, No Setup 71................
TSG95 Pathfinder™ User Manual
iii
Table of Contents
List of Tables
Table 1: TSG95 Video Test Signals 11....................
Table 2: General PAL Test Signal Characteristics 31.......
Table 3: Individual PAL Test Signal Characteristics 33.....
Table 4: PAL Vertical Interval Test Signals (VITS) 35......
Table 5: General NTSC Test Signal Characteristics 36......
Table 6: Individual NTSC T est Signal Characteristics 38....
Table 7: NTSC JAPAN Test Signal Characteristics 42......
Table 8: NTSC and NTSC JAPAN VITS 43...............
Table 9: Character Identification 43.....................
Table 10: Audio Tone 43...............................
Table 11: Power Supply 44.............................
Table 12: Physical Characteristics 44....................
Table 13: Environmental Characteristics 45...............
Table 14: Power Cords 73..............................
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TSG95 Pathfinder™ User Manual
General Safety Summary
Review the following safety precautions to avoid injury and prevent
damage to this product or any products connected to it.
To avoid potential hazards, use this product only as specified.
Only qualified personnel should perform service procedures.
To Avoid Fire or Personal Injury
Use Proper Power Cord. Use only the power cord specified for this
product and certified for the country of use.
Connect and Disconnect Properly. Do not connect or disconnect probes
or test leads while they are connected to a voltage source.
Ground the Product. This product is grounded through the grounding
conductor of the power cord. To avoid electric shock, t he grounding
conductor must be connected to earth ground. Before making
connections to the input or output terminals of the product, ensure that
the product is properly grounded.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe
all ratings and markings on the product. Consult the product manual
for further ratings information before making connections to the
product.
Do not apply a potential to any terminal, including the common
terminal, that exceeds the maximum rating of that terminal.
Power Disconnect. The power cord disconnects the product from the
power source. Do not block the power cord; it must remain accessible
to the user at all times.
Do Not Operate Without Covers. Do not operate this product with
covers or panels removed.
Do Not Operate With Suspected Failures. If you suspect there is
damage to this product, have it inspected by qualified service
personnel.
Avoid Exposed Circuitry. Do not touch exposed connections and
components when power is present.
Replace Batteries Properly. Replace batteries only with the specified
type and rating.
TSG95 Pathfinder™ User Manual
v
General Safety Summary
Recharge Batteries Properly. Recharge batteries for the recommended
charge cycle only.
Use Proper AC Adapter. Use onl y the AC adapter specified for this
product.
Use Proper Fuse. Use only the fuse type and rating specified for this
product.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
Terms in this Manual
These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that
could result in injury or loss of life.
CAUTION. Caution statements identify conditi ons or practices that
could result in damage to this product or other property.
Symbols and Terms on the Product
These terms may appear on the product:
H DANGER indicates an injury hazard immediately accessible as
you read the marking.
H WARNING indicates an injury hazard not immediately accessible
as you read the marking.
H CAUTION indicates a hazard to property incl uding the product.
The following symbol(s) may appear on the product:
CAUTION
Refer to Manual
vi
Double
Insulated
TSG95 Pathfinder™ User Manual
Environmental Considerations
This section provides information about the environment al impact of
the product.
Product End-of-Life Handling
Observe the following guidelines when recycling an instrument or
component:
Equipment Recycling. Production of this equipment required the extraction and use of natural resources. The equipment may contain substances that could be harmful to the environment or human health if
improperly handled at the product’s end of life. In order to avoid release of such substances into the environment and to reduce the use of
natural resources, we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused
or recycled appropriately.
The symbol shown to the left indicates that this
product complies with the European Union’s
requirements acc ording to Directive 2002/96/EC
on waste electrical and electronic equipment
(WEEE). For information about recycling options, check the Support/Service section of the
Tektronix Web site (www.tektronix.c om).
Battery Recycling. This product may contain a Nickel Cadmium
(NiCd) rechargeable battery, which must be recycled or disposed of
properly. Please properly dispose of or recycle the battery according
to local government regula tions.
Restriction of Hazardous Substances
This product has been classified as Monitoring and Control equipment, and is outside the scope of the 2002/95/EC RoHS Directive.
This product is known to contain lead, cadmium, and hexavalent
chromium.
TSG95 Pathfinder™ User Manual
vii
Environmental Considerations
viii
TSG95 Pathfinder™ User Manual
Getting Started
Please read the following statements before using your new TSG95
Pathfinder, then see the rest of the section for tips on supplying power, making preliminary settings, and connecting the instrument.
WARNING. Install or replace batteries only with the instrument
switched OFF and the AC adapter disconnected. Electrical shock or
equipment damage can result.
CAUTION. Do not attempt to operate the TSG95 with an improper
AC adapter. Damage to the instrument can result.
For best results, use the AC adapter and power cord supplied with
the instrument. If the supplied power cord is incorrect for the local
AC power supply, contact your nearest Tektronix representative.
The adapter voltage must be 9 to 15 VDC with an open-circuit voltage less than 18 VDC; the adapter connector must have the negative
(--) polarity contact in the center.
CAUTION. The AC adapter connector has +12 V on the outer casing.
Damage may result if it is allowed to come in contact with live
circuitry or other equipment. To prevent this, unplug the adapter
from the AC source before you unplug the adapter from the TSG95.
NOTE. Internal batteries are recommended when using an external
power adapter. A loose adapter connector can cause the loss of some
user settings and unexpected results the next time the instrument is
powered on.
The battery type, disposable or rechargeable, must be selected using
through the Utility menu (see page 6). Failure to select the proper
battery type can result in damage to the batteries and product.
TSG95 Pathfinder™ User Manual
1
Getting Started
Replace the batteries only wit h standa rd AA batteries (1.2--1.5 V,
nominal), or the Tektronix rechargeable battery pack listed on
page 73.
For more information, please contac t your nearest Tektronix representative or field office. In the United States and Canada, you can
also call the Tektronix information number, 1-800-TEK-WIDE
(1-800-835-9433), between 8:00 am and 5:00 pm Pacific time.
Supplying Power
The TSG95 is DC powered. You may power it with the standard AC
adapter, the optional 9.6 V NiCad battery pack, eight standard AA
batteries, or a “BP” type battery pack with the correct voltage and
polarity. The external DC power connector is on the left side of the
instrument.
To install AA batteries or the battery pack, open the battery compartment of the TSG95 by pressing down on the cover and sliding it in
the direction of the inscribed arrow, as shown above. When the cover
tabs line up with the slots in the case, lift the cover away from the
instrument. Install batteries in alternating directions as indicated by
the graphic molded into the “floor” of the battery compartment. If
using the optional battery pack, take the time to identify both contacts and install the pack properly.
When selecting a power source for your TSG95, pl ease remember:
H Attempting to use an improper AC adapter can damage the
instrument. See the Caution statement on the previous page.
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TSG95 Pathfinder™ User Manual
Getting Started
H There is no need to remove the optional NiCad battery pack for
recharging. The TSG95 will “trickle charge” the battery pack
whenever the standard AC adapter is used. Recharging the
battery pack fully can take up to 16 hours. Note that charging
will occur only if the adapter supplies at least 12V; make sure
that the adapter you use is appropriate for the local AC supply.
H AA batteries are not included with the instrument; obtain them
locally. Rechargeable AA batteries may be used, but they will
NOT be recharged automaticall y by the AC adapter. To recharge
AA batteries, remove them from the instrument and use an
appropriate battery charger. For safety, read and follow the
battery charger instructions. Do NOT attempt to recharge
standard alkaline batteries.
H After a minute with no key-press, the TSG95 will automatically
switch to lock out mode (as if you had pressed the Lock Out
key); the display back light will shut off to conserve battery
charge. When you want to resume keypad input, press
exit lock out mode.
H To guard against battery discharge if you forget to turn the
TSG95 off after use, enable Auto Power Down through the
Utility menu (see page 6).
Lock Out to
H The TSG95 can sense low battery voltage. It will warn you when
the charge is sufficient for approximately ten more minutes of
operation. The instrument will shut itself down when the battery
voltage becomes too low for reliable operation. For proper function of these features, the Battery Type must be set correctly in
the Utility menu.. Please see “Setting the Battery Type,” which
follows.
The ON key toggles instrument power On and Off.
Connecting the TSG95
Connect the Pathfinder to your equipment as you would any television test signal generator. Use 75Ω coaxial cable (for video) and be
sure that the signal path is properly terminated.
TSG95 Pathfinder™ User Manual
3
Getting Started
You may wish to confirm proper operation of your TSG95—and
gain familiarity with it—by first connecting it directly to a video or
waveform monitor.
A performance verification procedure, which some users may require
for acceptance testing, is included in the optional TSG95 service
manual (Tek p/n 070-8917-0x). To order a service manual, please
contact your nearest Tektronix representative or field office.
Keypad and Display Conventions
Please see the Instruction card (p/n 070-8915-00) supplied with your
TSG95 for a “tour” of the keypad and an explanation of the display
symbols. For your convenience, the following panels are taken from
the card.
12
3
Pin1=GND
Pin2=POS(+)
Pin3=NEG(--)
4
TSG95 Pathfinder™ User Manual
Getting Started
Definitions
There are two phrases used in this manual that deserve a little explanation. We at Tektronix sincerely hope that these explanations do
not confuse you further.
Signal Set— The group of signals that can be selected through the
TSG95 keypad at a given time. In the preprogrammed signal sets, all
of the signals are the same video standard. You may create a “User”
signal set, however, that contains both PAL and NTSC signals assigned to the letter keys of your choice, for easy selection.
Tone Level— One of four predefined audio output amplitudes that
may be selected through the Tone menu. The levels (1 through 4) are
“named” --10, 0, +4, and +8 dBu and calibrated to those amplitudes
when the TSG95 is manufactured. Qualified personnel, with the appropriate equipment, can rename and readjust the levels between --10
and +10 dBu. See page 26 for more discussion; see the Service
manual for instructions.
TSG95 Pathfinder™ User Manual
5
Getting Started
Preliminary Settings
Once the Pathfinder is up and running, you should choose some settings depending on how you’ll be using the instrument. These settings are made through the Utility menu. Invoke the Utility menu by
holding
directions to set the Video Standard and Bat tery Type, and enable
Auto Power Down (if desired).
Choose the Video Standard/Signal Set
1. Use the Y and B keys to scroll to the SELECT STNDRD menu
Lock Out down while pressing the ON key, then follow these
item.
2. Select, with the
that is appropriate to your application. The choices are: PAL;
NTSC; NTSC JAPAN, which includes NTSC signals with 0%
setup; and USER SIG SET, the user-configurable signal set tha t
can contain up to 26 signals of your choice—see page 22 for
more information.
3. When the name of the desired signal set is displayed, continue to
the Battery Type, or press any rectangular key to exi t the Utility
menu and return to normal operation.
A and " keys, the signal standard or “signal set”
Set the Battery Type
1. While still in the Utility menu, use the Y and B keys to scroll to
the BATTERY TYPE item.
2. Toggle to the selection that matches the type of battery you have
installed in your TSG95 by pressing either
are “rechargeable” and “disposable.” Select rechargeable when
using NiCad AA cells or the optional battery pack; choose disposable when you are using common Alkaline AA batteries,
which cannot be recharged.
3. When the correct battery type is displayed, continue to Auto
Power Down, or press any rectangular key to exit the Utility
menu and return to normal operation.
A or ". The choices
Enable (Disable) Auto Power Down
“Auto Power Down” will switch the instrument off when ten minutes
have passed without a key press. Enable this feature when you are
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TSG95 Pathfinder™ User Manual
Getting Started
using battery power and operating in an environment in which unplanned shutdown of the TSG95 is permissible.
1. While still in the Utility menu, use the
the AUTO PWR DOWN item.
2. Disable/enable Auto Power Down by pressing either
new state will be in effect when you return to normal operation.
Enabled Auto Power Down is indicated by a “rotating line” symbol in the upper-right corner of the Pathfinder display.
3. Use the
press any rectangular key to exit the menu and resume normal
operation.
Other Settings
There are other, less important TSG95 settings that are configured
through the Utility menu and its Calibration submenu. See “The
Utility Menu,” beginning on page 19 for more information.
Y and B keys to scroll to
A or ".The
Y and B keys to access other Utility menu items, or
TSG95 Pathfinder™ User Manual
7
Getting Started
8
TSG95 Pathfinder™ User Manual
Operating Basics
To begin using the instrument as quickly as possible, see “Using your
TSG95,” below. For even more information on selected topics, turn
to the Reference section of this manual, beginning on page 19.
Using Your TSG95
Here’s what you can do with your TSG95. Instructions for each use
begin on the indicated page.
H Output either PAL or NTSC video test signals (page 11). You
can configure the instrument to generate:
h PAL signals
TSG95 Pathfinder™ User Manual
9
Operating Basics
h NTSC signals
h “NTSC JAPAN” signals that have 0 IRE (as opposed to 7.5
h A “User Signal Set” that can contain selections from all three
See page 19 in the Getting Started section for information on
choosing a video standard/signal set. Directions for creating (or
editing) your own User signal set begin on page 22.
H Generate audio tones (page 12). You may:
h Choose one of 13 discrete “factory” frequencies, or select a
h Designate three “User Frequencies” in the same range
h Select a factory-calibrated audio output level of --10, 0, +4, or
IRE, used in North America) setup
lists, as well as VITS a nd non --VITS versions of the same
signal (permitting you to choose VITS without entering the
Utility menu). If you want, the User signal set can even include both PAL and NTSC signals.
frequency sweep that sweeps repeatedly from 50 Hz to
20 kHz (page 12)
(page 25) and later output one of these frequencies
+8 dBu (page 13)
10
h Recalibrate the audio output to permit selection of any whole
dB level between --10 and --3 dBu, or 0 through +10 dBu
(qualified service technicians only—page 26)
h Include channel-ID “clicks” i n the audi o output (page 13)
H Add an ID message to the video signal (pages 13), edit it (page
14), and place it in the vertical interval or position it where
desired in the active video (page 14)
H Store up to eight ID messages for later use (page 15)
H Create a sequence of (up to four) stored ID messages that will
cycle continuously in the output (page 16)
H Save all the current instrument settings as a “Preset” for later
recall (page 17)
TSG95 Pathfinder™ User Manual
Operating Basics
Outputting Test Signals
1. Connect the TSG95 to your system and make t he appropriate
preliminary settings as described in the Getting Started section of
this manual.
2. Switch the instrument on or return to normal operation by pressing either the Bars or Other Signals key. By default, the instrument “powers up” with the settings that were in effect when it
was last switched off.
3. Select the desired test signal one of four ways:
h Press the Bars key repeatedly to select among the available
color bars signals. The signal will be output as soon as the
name is displayed on the TSG95 LCD.
h Press the Other Signals key repeatedly to select among the
“non-bars” signals. Again, the signal will be output as soon as
its name is displayed on the LCD.
h Use the
Y and B keys to scroll through the full list of signals
until you get to the desired signal.
h Press the appropriate letter key (A through U) to “direct-se-
lect” the signal. The available signals and their corresponding
keys are listed in Table 1, below.
Table 1: TSG95 Video Test Signals
PAL
Signal Set
75% Bars SMPTE Bars SMPTE Bars* A
100% Bars 75% Bars 75% Bars* B
75% Bars/Red Convergence SNG Bars* C
100% Bars/Red Safe Area Convergence D
Convergence Red Field Safe Area E
Pluge 50IRE Flat Field Red Field* F
Safe Area 100IRE Flat Field 50IRE Flat Field G
Green Field Black Burst 100IRE Flat Field H
Blue Field 5-Step Black Burst* I
Red Field Multiburst 5-Step J
100% Flat Field NTC7 Composite Multiburst K
NTSC
Signal Set
NTSC JAPAN
Signal Set Key
TSG95 Pathfinder™ User Manual
11
Operating Basics
Table 1: TSG95 Video Test Signals (Cont.)
PAL
Signal Set
50% Flat Field NTC7 Combination NTC7 Composite L
0% Flat Field FCC Composite NTC7 Combination M
Multiburst Cable Multiburst FCC Composite N
60% Sweep Cable Sweep Cable Multiburst O
5-Step SIN X/X Cable Sweep P
Mod. 5-Step Matrix SIN X/X Q
Matrix 0IRE,noBurst Matrix* R
Field Square Wave Field Square Wave 0IRE,noBurst S
Bounce Bounce Field Square Wave T
— — Bounce U
* These signals differ from those in the NTSC signal set.
NTSC
Signal Set
NTSC JAPAN
Signal Set
Key
Outputting Audio Tones
H Toggle the audio output On/Off by pressing the Tone On/Off key.
Selecting the Audio Frequency
1. Enter the Tone menu (press Shift, then Tone On/Off). The first menu
item is TONE FREQ.
12
2. Use the
A and " keys to select the desired frequency. The
choices are:
50, 63, 125, 250, and 400 Hz;
1, 2, 4, 8, 10, 12.5, 16, and 20 kHz;
USER1, USER2, USER3; and
SWEEP 50--20K (a 50 Hz--20 kHz sweep)
You may specify the USER# frequencies through the Utility/Calibration menu; see page 25. (Note that there is no default value
for USER3; therefore, the USER3 choice will not appear in a
new—or reset—instrument.)
You can pause a sweep at any of its 27 frequency steps (listed in
Table 10 in the Characteristics section) by pressing
Enter when in
the TONE FREQ menu item and SWEEP 50--20K is selected.
TSG95 Pathfinder™ User Manual
Operating Basics
The message SWEEP PAUSED will appear on the display. You
may find this capability useful for checking a problem noticed at
a particular frequenc y while sweeping. Press
Enter a second time
to resume the frequency sweep.
3. Tone frequencies are in effect as soon as they are i ndicated on the
display. Scroll down to other Audio menu items with the
B key,
or exit the menu by pressing any rectangular key.
Setting the Audio Tone Level (Amplitude)
1. In the Audio menu, use the B or Y keytoreachtheTONE
LEVEL item.
2. Use the
A and " keys to select the desired level. When manufac-
tured, the four TSG95 tone levels are designated as --10, 0, +4,
and +8 dBu and calibrated to those amplitudes. Qualified technicians may rename and recalibrate the tone levels to any integer
value in the ranges of --10 to --3 dBu and 0 to +10 dBu. See page
26 for more information; see the optional Service manual for
instructions.
3. The new tone level will be in effect immediately. Scroll to other
Audio menu items with the
B or Y key, or exit the menu by
pressing any rectangular key.
Inserting Channel- ID Clicks in the Audio
When click is enabled, the instrument will insert a single click into
channel 1, and a double click into channel 2.
1. In the Audio menu, use the
2. Use the
A and " keys to toggle the ID clicks On/Off.
3. Scroll to other Audio menu items with the
B or Y key to reach the CLICK item.
B or Y key, or exit the
menu by pressing any rectangular key.
Inserting ID Messages
H Toggle the ID message or cycle on and off by pressing the ID
On/Off
key. The status of the ID—on, off, or cyc (cycle)—is
indicated on the second line of the TSG95 display, as shown in
the next illustration.
TSG95 Pathfinder™ User Manual
13
Operating Basics
Editing ID Messages
In the TSG95, only the current ID message may be edited. The “current” message is the ID that will appear in the output if ID=on. (The
current ID will not appear in the output when ID=off, and may not
appear in the output if ID=cyc, but it can still be edited and saved in
either case.)
1. Press
ID Edit. The current ID message will appear on the LCD.
2. Use the arrow keys to position the blinking underline cursor and
enter text with the alphanumeric keys.
3. Press
Enter or one of the rectangular keys to terminate the ID edit;
the new ID will become the current ID. If ID=on, the new ID will
be inserted into the video output. Note tha t if a stored ID or preset is recalled before new current ID is saved (see “Saving ID
Messages,” page 15), the changes will be overwritten and lost.
Positioning ID Messages
The current ID can be positioned within the safe area of active video,
or the first line can be placed in the vertical interval.
1. Press
2. Change the horizontal (H) position with the A / " keys and the
Shift, then ID Edit. The LCD will look something like this:
vertical (V) position with the
Y / B keys.
The H position can range from ØØ (left edge of safe area) to
69--3n,wheren is the number (1--16) of the right-most character
position occupied by the message. Note that, when editing a short
message (n<16) that has been placed as far to the right as pos-
sible, the end character positi ons will be occupie d by
symbols.
You will not be able to put characters in those positions unt il the
message is repositioned to the left.
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TSG95 Pathfinder™ User Manual
Operating Basics
The V setting can range from ØØ (top of safe area) to 41 (bottom). The vertical i nterval is indicated by V=vert; it is one
Y
key-press above V=ØØ. Only t he fi rst ID message line will fit
into the vertical interval.
3. When the ID message is in the desired position, press any rectangular key to resume normal operation. Note that the position of
an ID message is part of its definition. You must save the ID message (see below) to save its new location. If a stored ID or preset
is recalled before the current ID (in its new location) is saved, the
new location will be lost.
Saving ID Messages
The contents and position of the current ID can be stored in one of
eight ID# locations for later recall or inclusion in an ID cycle.
1. Press
Shift, then Recall. The display will change to resemble this
illustration:
The first line of the current message will occupy the bottom half
of the display. You may scroll between the first and second lines
of the message with the
2. Use the
A and " keys to select the ID# location (1 through 8) in
B and Y keys.
which the current message is to be stored. Note that the previous
contents of that location will be overwritten.
3. When the desired storage number is displayed, press
Enter to save
the message; press any rectangular key to abort the operation and
return the instrument to normal operation.
Recall the message later with the
Recall key, as described next.
Recalling ID Messages
1. Press the Recall key.
2. Use the
ID# 1 through ID# 8. The first line of the message wil l appear on
the second display line; press the
A and " keys to select one of the ID message numbers,
B key to see the second line of
TSG95 Pathfinder™ User Manual
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