Tektronix H500, SA2500 Service

xx
H500 Spectrum Analyzer,
ZZZ
SA2500 Spectrum Analyzer
Service Manual
*P077078600*
077-0786-00
xx
H500 Spectrum Analyzer,
ZZZ
Service Manual
Revision A
www.tektronix.com
077-0786-00
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 c overed by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specications and price change privileges rese rved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
NetTek is a registered trademark of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc. 14150 SW Karl Braun Drive P.O . Bo x 50 0 Beaverton, OR 97077 USA
For product information, sales, service, and t echnical support:
In North America, call 1-800-833-9200. Worl d wide , visi t www.tektronix.com to nd contacts in your area.
Warranty
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 n the property of Tektronix.
ew or reconditioned to like new performance. All replaced parts, modules and products become
In order to o the warranty period and make suitable a rrangements 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 result 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 modied or integrated with other products when the effect of such modication or integration increases the time or difculty 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.
TRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE
TEK 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.
[W2 – 15AUG04]
btain service under this warranty, Customer must notify Tektronix of the defect before the expiration of
ing from attempts by personnel other than Tektronix representatives to install, repair or service the product;
Table of Contents
General safety summary ...... ................................ ................................ .................... iv
Service safety summary........................................................................................... vi
Preface ............................................................................................................. vii
Manual Content ................... .................................. ................................ ......... vii
Manual Conventions.................................... ................................ ..................... vii
Related User Documents.................................................................................... viii
Installation........................................................................................................... 1
Operating Information ............................................................................................. 2
Performance Verication ............... ................................ .................................. ......... 3
Preparation................................. ................................ .................................. ... 3
Test Record ...................... ................................ ................................ ............... 4
Procedures ...................................................................................................... 6
Test Descriptions.......................... ................................ .................................. ... 7
Verify Performance ........................................................................................... 12
Theory of Operation..... ................................ ................................ .......................... 23
Platform............ ................................ ................................ ............................ 23
Measurement Module .... ................................ .................................. .................. 31
Adjustment Procedures ........................................................................................... 33
Cleaning .... ................................ .................................. ................................ ...... 35
Removal and Replacement Procedures ......................................................................... 36
Preparation................................. ................................ .................................. .. 36
Preventing Electrostatic Damage ........................................................................... 37
Removal Procedures.......................................................................................... 37
Troubleshooting.................................................................................................... 47
Power On Self Test ................... ................................ .................................. ...... 48
Display Does Not Operate......... .................................. ................................ ........ 48
Display Image Inverted (Rotated 180°) .................................................................... 49
Touch Screen Does Not Operate ........................ ................................ .................... 49
Signal and Connector Information.......................................................................... 49
Lithium-Ion Battery Maintenance ... ................................ ................................ ............ 58
H500 and SA2500 Instrument-Specic Battery Maintenance ............. .............................. 60
Repackaging for Shipment ....................................................................................... 64
Replaceable Parts.................................................................................................. 65
Parts Ordering Information .................................................................................. 65
Using the Replaceable Parts List............................................................................ 65
Specications ................ .................................. ................................ .................... 73
H500 & SA2500 Service Manual i
Table of Contents
List of Figure
Figure 1: Processor and backlight inverter board input and output connections . ... ... . . .. . ... . . .. . ... ... . 47
Figure 2: Mo
Figure 3: Mainframe replaceable parts...................... ................................ .................... 68
Figure 4: H500 and SA2500 accessories ....... ................................ ................................ 71
dule and cover replaceable parts ............................... ................................ .. 66
s
ii H500 & SA2500 Service Manual
List of Tables
Table 1: DB- 9F serial loop-back connector pin-out ................ ................................ .......... 10
Table 2: Test voltages and limits................................................................................. 11
Table 3: External ports and buses............................ .................................. .................. 26
Table 4: Internal ports and buses .......... ................................ .................................. .... 26
Table 5: Platform voltage supplies to module.................................................................. 29
Table 6: Tools required ....... ................................ .................................. .................. 36
Table 7: Backlight-related voltages.............................................................................. 48
Table 8: PCMCIA interface connectors JR420, JR520........................................ ................ 49
Table 9: Application module connector JR170 ................................................................ 50
Table 10: Internal speaker connector J110.............................. ................................ ........ 51
Table 11: External microphone connector J200............................ ................................ .... 52
Table 12: Power connector J240............................. ................................ .................... 52
Table 13: Front-panel switch/LED connector J120............................................................ 53
Table 14: Serial port connector J500...... .................................. ................................ .... 53
Table 15: JTAG port connector J670 .......................... ................................ .................. 53
Table 16: PS/2 keyboard connector J700 ... ................................ ................................ .... 54
Table 17: Headphone connector J300........................................................................... 54
Table 18: TFT color display connector J660 ................................................................... 54
Table 19: TFT backlight connector CN2 (Backlight Inverter Board) ....................................... 55
Table 20: Touch screen connector J4 and J2 ......... ................................ .......................... 55
Table 21: Ethernet connector J400 .............................................................................. 55
Table 22: USB 1.1 series A host connector J701 .............................................................. 56
Table 23: USB 1.1 series B slave connector J800 ................. ................................ ............ 56
Table 24: Backlight connector JR1 .............................................................................. 56
Table 25: General performance characteristics............................... .................................. 73
Table 26: Spectrum analyzer characteristics.................................................................... 75
Table 27: DPX measurement processing characteristics...................................................... 77
Table 28: Spectrogram (Rising Raster) measurement processing characteristics .......................... 78
Table 29: General purpose RF measurement characteristics ..................... ............................ 78
Table 30: Amplitude vs. Time measurement characteristics ... ... ... .. .. . ... ... ... . ... ... ... . ... ... ... . ... .. 79
Table 31: Signal analysis and monitoring characteristics ................... .................................. 80
Table 32: Environmental characteristics ........................................................................ 81
Table 33: Physical characteristics ......................... .................................. .................... 81
Table 34: Miscellaneous characteristics ........................................................................ 81
Table of Contents
H500 & SA2500 Service Manual iii

General safety summary

General safet
To avoid re or personal
injury
ysummary
Review the fo this product or any products connected to it.
To avoid pot
Only qualied personnel should perform service procedures.
While using this product, you may need to access other parts of a larger system. Read the safety sections of the other component manuals for warnings and cautions r
Use proper power cord. Use only the power cord specied for this product and certied for the country of use.
Observe all terminal ratings. To av o id re or shock hazard, observe all ratings and markings on the p roduct. Consult the product manual for further ratings information before making connections to the product.
The inputs are not rated for connection to mains or Category II, III, or IV circuits.
Power disconnect. The power cord disconnects the product from the power source. Donotblockthepowercord;itmustremain accessible to the user at all times.
llowing safety precautions to avoid injury and prevent damage to
ential hazards, use this product only as specied.
elated to operating the system.
Do not operate without covers. Do not operate this product with covers or panels removed.
Do not operate with suspected failures. If you suspect that there is damage to this product, have it inspected by qualied service personnel.
Avoid exposed circuitry. Do not touch exposed connections and components when power is present.
Replace batteries properly. Replace batteries only with the specied type and rating.
Recharge batteries properly. Recharge batteries for the recommended charge cycle only.
Use proper AC adapter. Use only the AC adapter s pecied for this product.
Do not operate in an explosive atmosphere.
iv H500 & SA2500 Service Manual
General safety summary
Terms in this manual
Symbols and terms on the
product
These terms may
WAR N ING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
These terms may appear on the product:
DANGER in the m arking.
WAR NI NG read the marking.
CAUTIO
The following symbol(s) may appear on the product:
appear in this manual:
dicates an injury hazard immediately acc essible as you read
indicates an injury hazard not immediately a ccessible as you
N indicates a hazard to property including the product.
H500 & SA2500 Service Manual v

Service safety summary

Service safet
ysummary
Only qualifie safety summary and the General safety summary before performing any service procedures.
Do not service alone. Do not perform internal service or adjustments of this product unless another person capable of rendering rst aid and resuscitation is present.
Disconnect power. To avoid electric shock, switch off the instrument power, then disconnect the power cord from the mains power.
Use care when servicing with power on. Dangerous voltages or currents may exist in this p test leads before removing protective panels, soldering, or replacing components.
To avoi
d personnel should perform service procedures. Read this Service
roduct. Disconnect power, remove battery (if applicable), and disconnect
d electric shock, do not touch exposed connections.
vi H500 & SA2500 Service Manual

Preface

Preface

Manual Content

Manual Conventions

This service
This manual of the H500 and SA2500 Spectrum Analyzers, and running a performance verication on the whole instrument. The module part of the instrument has no user-serviceable parts or adjustments. The entire instrument must be returned to Tektronix if service is required.
For information related to installing and operating the instrument, or for a list of instrument specications, refer to the appropriate user document as described in Related User Documents below.
Be sure to read the introductions to all procedures. These introductions provide important information needed to perform the service correctly, safely, and efcie
manual uses certain conventions that you should become familiar with
This before attempting service.
manual is for servicing the H500 and SA2500 Spectrum Analyzers.
contains information related to servicing the mainframe part
ntly.
Module
Replaceable Parts
Safety
The term module refers to a collection of items that are replaceable as a unit. A
ule may contain electrical and mechanical assemblies, circuit boards, and
mod interconnecting cables.
This manual refers to any eld-replaceable assembly or mechanical part by its
ame or generically as a replaceable part. In general, a replaceable part is any
n circuit board or assembly that is listed in the Replaceable Parts section.
Symbols and terms related to safety appear in the General Safety Summary found at the beginning of this manual. Be sure to read both the General Safety Summary and Service Safety Summary before performing any service to this instrument.
H500 & SA2500 Service Manual vii
Preface

Related User Documents

The following related English user documents are available if you need more information about operating the instrument. The user manuals can be downloaded from the Tektronix Web site (www.tektronix.com).
User manual. Tektronix part number 071-3115-xx (for the H500) and Tektronix part number 071-XXXX-xx (for the SA2500) contain general information about how to put the instrument into service, guides to user interface
Online Help. The H500 and SA2500 Spectrum Analyzer applications contain online he the active screen or the selected help button.
controls, and application examples.
lp that is context sensitive, displaying information appropriate for
viii H500 & SA2500 Service Manual

Installation

The Specications section contains information on instrument operation environment requirements. (See Table 32 on page 81.)
H500 & SA2500 Service Manual 1

Operating Information

Operating Inf
ormation
Refer to the i
nstrument user manual for operation instructions.
2 H500 & SA2500 Service Manual
Performance Verication
Performance V

Preparation

erication
This section warranted characteristics.
Before you perform the procedures in this manual, do the following steps:
Ensure tha who have read the General Safety Summary at the front of this manual.
Ensure th to the product user manual).
Obtain t additional cables and adapters, depending on the actual test equipment you use.
Description Minimum requirements Examples
Signal generator
Frequency standard
Power meter with head 0.009 to 6200 MHz, -52 dBm
Oscilloscope
10 dB xed attenuator
50 ohm N-type RF cable 0.009 to 6200 MHz
50 ohm BNC cables
N-type barrel female-to-female adapter
enables you to verify that the instrument performs according to its
t the procedures are performed only by qualie d service personnel
at the s ervice personnel are familiar with system operation (refer
he equipment described in the following table. You may also need
0.009 to 6200 MHz, phase noise better than
-110 dBc/Hz at 10 kHz offset
10 MHz (or any frequency in therange1MHzto20MHz in 1 MHz increments), ±0.05 ppm
to +3 dBm
300MHz band width
0.009 to 6200 MHz
None Tektronix part number
0.009 MHz to 6200 MHz
Anritsu MG3692B with option 22 (low frequency), option 3 (low phase noise, main band), and option 4 (low phase noise, low band)
Fluke 910/910R GPS Controlled Frequency Standards
Agilent E4418B
Agilent E9304A
Tektronix TDS3034B
RLC Electronics A-8-10-N
Florida RF Labs NMS ­290 AN - 36.0 - NMS
012-0482-00
SRI Connector Gage Co. P/N 53-953-0003-00
H500 & SA2500 Service Manual 3
Performance Verification

Test Record

Serial number Procedure performed by
Date
Test Passed Failed
Self Test
Performance checks
Carrier Frequency and Timebase Error
External Lock Time
RF Channel Power Accuracy
Tested at 6 GHz
10 MHz (typical) Reference Freq
50 MHz, -5 dBm Input - 1.2 dB +1.2 dB
3200 MHz, -5 dBm Input - 1.2 dB +1.2 dB
Low limit Test result High limit
-3010 Hz
-9010 Hz
-15010 Hz
1
2
3
-
5000 MHz, -5 dBm Input -1.8 dB +1.8 dB
6199 MHz, -5 dBm Input -1.8 dB +1.8 dB
50 MHz, -20 dBm Input -1.2 dB +1.2 dB
3200 MHz, -20 dBm Input -1.2 dB +1.2 dB
5000 MHz, -20 dBm Input -1.8 dB +1.8 dB
6199 MHz, -20 dBm Input -1.8 dB +1.8 dB
50 MHz, -35 dBm Input -1.2 dB +1.2 dB
3200 MHz, -35 dBm Input -1.2 dB +1.2 dB
5000 MHz, -35 dBm Input -1.8 dB +1.8 dB
6199 MHz, -35 dBm Input -1.8 dB +1.8 dB
Phase Noise
Displayed Average Noise Level
100 MHz Input, 10 kHz, offset
3000 MHz Input, 10 kHz offset
5000 MHz Input, 10 kHz offset
6000 MHz Input, 10 kHz offset
1MHzto4GHz
1
2 GHz to 4 GHz
-
-
-
-
4 GHz to 5 GHz
5GHzto6.2GHz
Residual Spurious, Preamp On
1
Use this limit if testing shortly after instrument calibration.
2
Use this limit if testing one year after instrument calibration.
3
Use this limit if testing two years after instrument calibration.
4
The following are exception frequencies (not warranted to specication):
9 MHz to 19 MHz center frequency
5374 MHz to 5378 MHz center frequency
4
-60 dBm ref level
3010 Hz
9010 Hz
15010 Hz
15 s
-95 dBc/Hz
-95 dBc/Hz
-95 dBc/Hz
-95 dBc/Hz
-153 dBm
-152 dBm
-151 dBm
-145 dBm
-105 dBm
4 H500 & SA2500 Service Manual
Performance Verication
Instrument Warmup
Equipment Setup
Before perform operating continuously for at least twenty (20) minutes in an environment that meets the operating range specications for temperature and humidity:
The H500 or SA2500 under test
All test equ
Setup the test equipment as follows:
1. Reset all the test instruments to their factory default settings before starting a test.
2. Connect the RF cable to the output of the Signal Generator; all test instructions make this assumption.
3. Connect the AC adapter to the H500 or SA2500 instrument. Do not attempt to do the procedure steps while the instrument is powered from the batteries.
ing these procedures, the following equipment must have been
ipment
H500 & SA2500 Service Manual 5
Performance Verification

Procedures

A test record table is provided. (See page 4, Tes t Re cord .) You can photocopy the page and record your test results in the table.
Diagnostic Tests
This section contains procedures to verify that the instrument platform is functioning properly.
1. Select Start > Programs > Tektronix Utilities > Diagnostics.
2. Tap t he Dia
3. To view the test selections, tap the + symbol in front of All Modules, All Tes ts.Th
4. Select the test(s) to run. The default selection runs all tests. However,
some diagnostic tests require special equipment or custom xtures (such as aDB­PS/2-compatible keyboard, Microphone, USB Flash Memory Device, and a network interface connected to a DHCP-enabled network server). Clear the box next to any test that requires equipment or custom xtures that you do not have available for the tests, o therwise these tests will indicate that they fail.
gnostics tab.
en tap the + symbol in front of Platform.
9F serial loopback connector, PCMCIA ATA flash memory cards,
5. Select one of the test run options:
Loop. Use the up/down arrows to set how many times to repeat the test(s).
Until Fail. Run the selected test(s) until a failure occurs or the user selects
Stop.
Continuous. Run the selected test(s) until the user selects Stop.
6. Tap Run to begin the tests.
6 H500 & SA2500 Service Manual
Performance Verication
Test Descr
Vertica
iptions
lLineTest
Test Results Re
report the results of each test.
The Last Resul
The Fail Count column lists the number of times a test failed.
The Loop Count eld reports the number of times the test ran.
To see details on failed tests, select the Failure Log tab and read the Message column.
Some diagnostic tests require special equipment or custom xtures. These requirements are noted under each description.
Observe a full screen of moving vertical lines.
1. Look for inconsistent line w idths and lengths.
2. Report a Pass or Fail when prompted.
A Test response when prompted.
failed is recorded in the F ailure Log if the user does not enter a pass/fail
porting. The Diagnostics window contains columns and elds to
t column lists the Pass or Fail status of each test.
Horizontal Line Test
Color Range Test
Observe a full screen of moving horizontal lines.
1. Look for inconsistent line w idths and lengths.
2. Report a Pass or Fail.
A Test failed is recorded in the Failure Log if the user does not enter a pass/fail response when prompted.
Observe two different color test patterns.
attern 1, look for color fading and inconsistencies while observing red,
1.P
green, and blue color bands on a white background.
2. Pattern 2, look for color inconsistencies (failed pixels) while observing three different full color screens (red, green, blue).
3. Report a Pass or Fail when prompted.
A Test failed is recorded in the Failure Log if the user does not enter a pass/fail response when prompted.
H500 & SA2500 Service Manual 7
Performance Verification
Brightness Test
LED Test
Touch S
creen Test
Observe a full s
1. Look for adequate brightness at each level.
2. Report a Pass or Fail when prompted.
A Test failed is recorded in the Failure Log if the user does not enter a pass/fail response when prompted.
The display returns to its original brightness at test completion.
Observe a series of front-panel LED color cycles.
1. Look for t
2. Report a Pass or Fail when prompted.
A Test failed is recorded in the Failure Log if the user does not enter a pass/fail response when prompted.
Observe a crosshair cursor that moves from screen center to top-left, top-right, bottom-right, and bottom-left.
1. At each position, press on the center of the crosshair icon until it moves. Use the stylus or your nger.
creen checkerboard pattern that changes brightness.
he color and position indicated: left-right, green, red, and amber.
Keyboard Test
Pass is reported if the sequence is completed within the allotted time.
Test failed is recorded in the Failure Log if no user interaction is detected or the user presses outside of the crosshair area.
Check the keyboard cable connection to the instrument; check the function of each key.
NOTE. This test requires an external PS/2 keyboard.
1. Connect a PS/2-compatible keyboard to the keyboard port. Refer to the user manual for port location.
2. Select Keyboard Test; then select Run.
3. Enter the requested text on the keyboard when prompted; then select OK.
The text must be duplicated exactly or the test will fail.
This test reports a Fail if a keyboard is not connected or the user misspells the message.
8 H500 & SA2500 Service Manual
Performance Verication
Audio Test
PCMCIA Slot 1 Test
Check the exter
1. Plug a microphone into the external microphone jack.
2. Select Audio Test; then select Run.
3. When prompted, speak into the microphone for approximately 5 seconds.
The device will then automatically play back your message.
4. Listen to the playback and verify its accuracy. The test fails if there is no output or if the audio is signicantly distorted.
5. Report a Pass or Fail when prompted.
A Test fai response when prompted.
CheckthePCMCIAcontrollerconnectiontoanATAash card in Slot 1. The test uses sta read the le back, and validate the data.
NOTE. This test requires two PCMCIA ATA ash memory cards. Both cards must
be installed for the test to run successfully.
ndard API functions to create a le on the device, write data to the le,
nal microphone and speaker operation.
led is recorded in the F ailure Log if the user does not enter a pass/fail
PCMCIA Slot 2 Test
1. Install two PCMCIA ATA ash memory cards, one in each of the PCMCIA card slots.
2. Select PCMCIA Slot 1 Test,thentapRun.
A Test failed is recorded in the Failure Log if a memory card is not installed when prompted.
eck the PCMCIA controller connection to an ATA ash card in Slot 2. Uses
Ch standard API functions to create a le on the device, write data to the le, read the le back, and validate the data.
NOTE. NOTE. This test requires two PCMCIA ATA ash memory cards. Both
cards must be installed for the test to run successfully.
1. Install two PCMCIA ATA ash memory cards in the PCMCIA card slots.
2. Select PCMCIA Slot 2 Test; then select Run.
A Test failed is recorded in the Failure Log if a memory card is not installed when prompted.
H500 & SA2500 Service Manual 9
Performance Verification
Network Port Test
Serial Port Test
Checks the Ethe
rnet network port. Requires a network connection with a DHCP
server.
1. Connect the Ne
tTek Analyzer Platform RJ45 Ethernet port to a DHCP-enabled
network server.
2. Select Netw
ork Port Test; then select Run.
A Test failed is recorded in the Failure Log if the NetTek Analyzer cannot obtain an I.P. addr
ess from the DHCP-enabled network server.
Check the serial port signal lines by setting the output control lines and reading the corresponding status lines. Writes, reads, and validates a data pattern at varying b
aud rates.
NOTE. This test requires a custom DB-9F serial loop-back connector.
Table 1: DB- 9F serial loop-back connector pin-out
Connect pin
1 (DCD) 4 (DTR)
6 (DSR) 4 (DTR)
2(RX) 3(TX)
5(SGND) NC
8(CTS) 7(RTS)
9(RI) 7(RTS)
To pi n
1. Install the custom DB-9 loop-bac k connector on the RS-232 serial port. Refer to the user manual for port location.
2. Select Serial Port Test; then select Run.
A Test failed is recorded in the Failure Log if the loop-back connector is not installed when prompted.
10 H500 & SA2500 Service Manual
Performance Verication
USB Flash Memory Device
Test
SPI Test
Tests the USB po
NOTE. This test requires a USB Flash Memory Device inserted into the USB slot.
If a Flash Memory Device is not installed when the test is initiated, the user is prompted to insert a Flash Memory Drive or fail the test. The test consists of the following:
Creating a data le
Writing a xed size pattern to the le
Closing the le
If an error occurs during any portion of the test, the test terminates and reports a Test failed in the Failure Log. A Test failedisalsorecordedifaFlashMemory Drive is not install
Check the external connectivity and function by setting the instrument module interface port to loop back mode and sending, receiving, and validating device selects and frequency changes.
No user interaction required. Select Run.
rtusingaFlashMemorydrive.
ed when prompted.
SMBus Te
st
Flash File System Test
Power Test
Verify communications between the host and power management processor.
No user interaction required. Select Run.
Check the read/write function and data integrity of the internal ash le system. The test uses standard API functions to create a le, write a data pattern to the le, read the le, and validate the data.
Verify the instrument platform processor board and application module voltages are within their nominal range. See Table 3-2 for voltage limits.
NOTE. The Power Test does not check battery voltages.
This test uses internal voltage sensing. No user interaction required. Select Run.
Table 2: Test voltages and limits
Source Voltage (VDC) Limits (VDC)
Processor board +1.5
Processor board +3.3
10%
10%
H500 & SA2500 Service Manual 11
Performance Verification
Table 2: Test voltages and limits (cont.)

Verify Performance

Processor board
Application module +3.4
Application module +13
Application module -13
+5
10%
10%
10%
10%
This test reports a fail if the detected voltages exceed ±10% of their nominal values.
Before continuing these procedures, warm up the instrument and all other test equipment for at least twenty (20) minutes in an environment that meets the operating range specications for temperature and humidity.
To warm up the instrument:
1. Connect the AC adapter to the H500 or SA2500 instrument. Do not attempt to do the procedure steps while powered from the batteries.
2. Power on the instrument. Wait until it completes the power-on sequence.
3. Double-tap the H500 or SA2500 application icon on the screen to open and
run the instrument application. Leave the application running.
Check Carrier Frequency
and Time-base
This test checks the accuracy of the carrier frequency measurement and the accuracy of its internal time-base.
1. Remove any cable attached to instruments Freq Ref BNC.
2. Reset the instrument application:
a. Select Tools > Factory Reset.
b. Tap Reset All.
3. Connect the Signal Generator output to the H500 under test RF IN PUT
connector through the RF cable.
4. Set the Signal Generator as follows:
a. Reset the Signal Generator.
b. Connect the Frequency Standard output to the frequency reference input
of the Signal Generator marked REF.
c. Set the Signal Generator lock to the external reference input.
d. Verify that the Signal Generator displays is locked to the external
reference.
12 H500 & SA2500 Service Manual
Performance Verication
e. Set frequency t
f. Set the amplitude to 10dBm.
5. On the H500 or SA2500 application:
a. Tap the Spectrum drawer.
b. Tap the Freq button to open the Meas Freq form and enter 6GHz.
c. Ta p th e Auto Level button.
d. If you don'
increase the signal span.
e. Ta p the Me
ensure the red triangle is the selected marker; the red triangle will be displayed on the marker button in the Spectrum drawer.
f. Using the marker drop-down box in the Spectrum drawer, select "Marker
to max p eak" then select "Marker to center freq".
g. Reduce the displayed signal span by tapping the arrow icon on the left of
the Span: eld.
h. Repeat steps g through h until the signalpeakiscenteredinthedisplay
and the span is 0.010 MHz.
o 6 GHz.
t see the signal, tap on the Span: eld right arrow button to
as Freq marker readout box just above the Start button to
i. Read the marker frequency value from the Meas Freq marker readout box.
j. Writ
k. Subtract 6 GHz from the measured frequency. Check that the result is
edowntheFREQ: measurement.
hin the limits listed in the Test Record.
wit
H500 & SA2500 Service Manual 13
Performance Verification
Check External Lock Time
This test check
1. Reset the H500 or SA2500 application:
a. Select Tools > Factory Reset.
b. Tap Reset All.
2. On the Signal Generator:
a. RESET the Signal Generator.
b. Connect a B
generator.
3. On the H50
a. Make sure that the reference oscillator indicator, near the upper right
corner o
b. Connect the BNC cable from the signal generator's 10 MHz Reference
Out to t
time.
c. Wa tch
Ext, record the time.
s the lock time o f the external frequency reference input.
NC cable to the external reference output of the Signal
0 or SA2500:
f the screen, is indicating FInt.
he H500 FREQUENCY REF ERENCE INPUT andrecordthe
the reference oscillator indicator; when it changes from FIntto F
Check RF Channel Power
racy
Accu
d. The di
This test checks the accuracy of the RF channel power measurement.
1. Reset the H500 or SA2500 application:
a. Select Tools > Factory Reset.
b. Tap Reset All.
2. Set the H500 or SA2500 application to read channel power:
a.D
b. Tap t he RF Measure drawer.
c. Select Channel Power from the Measurement drop-down list, tap the
3. Connect a 10 dB attenuator to the RF cable. (The attenuator improves the
impedance match between the Signal Generator and the H500/SA2500 under test.)
4. Connect an N-type bar rel adapter (female-to-female) to the attenuator.
fference between the two times is the result of the test. The time
should be 15 seconds or less.
isplay a Spectrum measurement.
Meas BW field, tap the keypad icon on the Meas BW dialog box, and enter 10 kHz.
14 H500 & SA2500 Service Manual
Performance Verication
5. Set the Signal G
a. Reset the Signal Generator.
b. Set the frequency to 50 MHz.
c. Set the output level to +5 dBm.
6. Push the ZERO buttononthepowermeter.
7. Connect the power meter head to t
8. Perform a power measurement using the power meter:
a. Set the power meter correction factor for 50 MHz.
b. Read the power.
9. Adjust the output level of the Signal Generator until the power meter reads
-5 dBm.
10. Disconnect the power meter head and the barrel adapter from the cable/10 dB
attenuator assembly.
11. Connect the RF cable with the 10 dB attenuator to the RF INPUT of the H500 or SA2500 under test.
12. On the H500 or SA2500:
enerator as follows:
he barrel adapter.
a. Tap the Freq buttontoopentheMeas Freq dialog and enter 50 MHz.
b. If you don't see the signal, tap on the Span: eld right arrow button to
increase the signal span.
c. Ta p th e Auto Level button.
d. Tap the Meas Freq marker readout box (just above the Windows CE
Start button) to set the red measurement triangle as the selected (active)
marker. The red triangle will be displayedontheMarker-Tobuttonin the Spectrum drawer.
e. Ta p the Spectrum drawer button.
f. Tap the down arrow button next to the Marker-To button and select
Marker to max peak.ThenselectMarker to center freq to move the
peak of the test signal to the center of the display.
g. Reduce the displayed signal span by tapping the arrow icon on the left of
the Span: eld.
h. Repeat steps f through g until the signalpeakiscenteredinthedisplay
and the span is 10 kHz.
i. Read the Channel Power in dBm; the Channel Power is displayed in the
trace area if the Spectrum drawer is open or displayed on the Channel Power tab if the RF Measure drawer is open.
H500 & SA2500 Service Manual 15
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