Tektronix SPG8000A User manual

SPG8000A
Master Sync / Clock Reference Generator
ZZZ
Service Manual
xx
Revision A
www.tek.com
*P077122000*
077-1220-00

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 covered by U.S. and foreign patents, issued and pending. Information in this publication
supersedes that in all previously published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tek.com to find 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 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.
[W2 – 15AUG04]

Table of Contents
Important safety information...................................................................................... v
General safety summary ...................................................................................... v
Service safety summary..................................................................................... vii
Terms in this manual ........................................................................................ viii
Symbols and terms on the product......................................................................... viii
Preface.............................................................................................................. ix
Manual structure .............................................................................................. ix
Manual conventions ........................................................................................... x
Product documentation....................................................................................... xi
Theory of operation ................................................................................................ 1
Base instrument theory of operation......................................................................... 1
Optional modules theory of operation....................................................................... 4
Adjustment procedures............................................................................................ 15
Adjust master clock using a frequency signal generator ................................................. 15
Adjust master clock while locked to GPS or GLONASS ................................................ 18
Adjust master clock while locked to PTP.................................................................. 20
Adjust Option BG............................................................................................. 23
Adjust Genlock/Black board ................................................................................ 29
Adjust Option SDI............................................................................................ 31
Maintenance........................................................................................................ 39
General service information ................................................................................. 39
Inspection and cleaning ...................................................................................... 42
Remove and replace procedures ............................................................................ 45
Troubleshooting............................................................................................... 75
Repackaging instructions .................................................................................. 117
Replaceable parts................................................................................................ 119
Parts ordering information................................................................................. 119
Replaceable parts lists...................................................................................... 121
SPG8000A Master Sync / Clock Reference Generator Service Manual i

Table of Contents
List of Figures
Figure 1: SPG8000A block diagram ............................................................................. 2
Figure 2: Simplified block diagram of the Option AG ........................................................ 4
Figure 3: Simplified block diagram of the Option BG ........................................................ 5
Figure 4: Simplified block diagram of the Genlock/Black, Option GPS, and PTP board circuitry ....... 7
Figure 5: Simplified block diagram of PTP board............................................................. 11
Figure 6: Simplified block diagram of Option SDI ........................................................... 12
Figure 7: Adjusting the master clock frequency using a frequency standard............................... 16
Figure 8: Variable resistors on the Option BG board.......................................................... 24
Figure 9: Adjusting the Option BG output offset and gain ................................................... 24
Figure 10: Adjusting chroma gain............................................................................... 27
Figure 11: Triggered display for adjusting the Option BG chroma gain .................................... 28
Figure 12: Equipment connections for Genlock/Black adjustments......................................... 29
Figure 13: Instrument orientation................................................................................ 47
Figure 14: Module locator diagram ............................................................................. 48
Figure 15: Cable connections 1 of 3............................................................................. 49
Figure 16: Cable connections 2 of 3............................................................................. 50
Figure 17: Cable connections 3 of 3............................................................................. 51
Figure 18: Removing the top cover ............................................................................. 53
Figure 19: Removing the front panel assembly................................................................ 56
Figure 20: Disassembling the front panel assembly........................................................... 57
Figure 21: Removing the power supply......................................................................... 60
Figure 22: Removing the Power Combiner board ............................................................. 62
Figure 23: Remove the two nuts................................................................................. 70
Figure 24: Remove the bracket from the fan ................................................................... 71
Figure 25: Main board (view from top)......................................................................... 82
Figure 26: Option AG troubleshooting procedure............................................................. 84
Figure 27: Option BG troubleshooting procedure ............................................................. 86
Figure 28: Genlock/Black generator module power supply test ............................................. 91
Figure 29: Genlock/Black generator board voltage test point and fuse locations.......................... 93
Figure 30: SDI power supply test points...................................................................... 114
Figure 31: Main instrument exploded view .................................................................. 121
Figure 32: Chassis assembly exploded view ................................................................. 123
Figure 33: Front panel assembly exploded view............................................................. 125
Figure 34: Option AG exploded view......................................................................... 127
Figure 35: Option BG exploded view......................................................................... 128
Figure 36: Genlock/Black board and Option GPS Receiver board exploded view ...................... 130
Figure 37: Option SDI board and Option SDI Output board exploded view ............................. 132
ii SPG8000A Master Sync / Clock Reference Generator Service Manual

Table of Contents
List of Tables
Table i: Product documentation.................................................................................. xi
Table 1: Equipment required to adjust the master clock using a signal generator.......................... 16
Table 2: Equipment required to adjust the master clock while locked to GPS or GLONASS............ 18
Table 3: Equipment required to adjust the master clock while locked to PTP.............................. 20
Table 4: Adjusting Option BG ................................................................................... 23
Table 5: Equipment required for the Genlock/Black board adjustment procedures........................ 29
Table 6: Equipment required for the Option SDI adjustment procedures................................... 31
Table 7: SDI output amplitude ....................... ................................ ............................ 32
Table 8: External inspection checklist........................................................................... 43
Table 9: Internal inspection checklist ........................................................................... 43
Table 10: Required tools for removal and replacement of modules ......................................... 46
Table 11: Cable connections table 1 of 3 ....................................................................... 49
Table 12: Cable connections table 2 of 3 ....................................................................... 50
Table 13: Cable connections table 3 of 3 ....................................................................... 51
Table 14: Slot I/O test error codes............................................................................... 78
Table 15: SPG8000A system diagnostics....................................................................... 79
Table 16: SPG8000A troubleshooting procedures............................................................. 81
Table 17: Equipment required to troubleshoot the Option AG............................................... 83
Table 18: Equipment required for Option BG troubleshooting............................................... 85
Table 19: Equipment required for troubleshooting the Genlock/Black generator module ................ 87
Table 20: General problems – Genlock/Black board.......................................................... 88
Table 21: POST error codes for the Genlock/Black module.................................................. 89
Table 22: Power supply test points .............................................................................. 92
Table 23: Equipment required for troubleshooting the Option GPS module ............................... 97
Table 24: General problems – Option GPS..................................................................... 98
Table 25: POST error code for Option GPS.................................................................... 99
Table 26: Equipment required to troubleshoot the Option PTP ............................................ 103
Table 27: Equipment required to troubleshoot the Option SDI ............................................ 105
Table 28: Option SDI troubleshooting ........................................................................ 106
Table 29: POST error codes for Option SDI ................................................................. 107
Table 30: Option SDI module factory default settings ...................................................... 110
Table 31: Parts list column descriptions ...................................................................... 120
Table 32: Main instrument replaceable parts................................................................. 121
Table 33: Chassis assembly replaceable parts................................................................ 122
Table 34: Front panel assembly replaceable parts ........................................................... 124
Table 35: Option AG – replaceable parts ..................................................................... 126
Table 36: Option BG – replaceable parts ..................................................................... 128
Table 37: Genlock/Black board and Option GPS Receiver board – replaceable parts................... 129
SPG8000A Master Sync / Clock Reference Generator Service Manual iii

Table of Contents
Table 38: Option SDI – replaceable parts..................................................................... 131
Table 39: Standard and optional accessories for the SPG8000A........................................... 133
iv SPG8000A Master Sync / Clock Reference Generator Service Manual

Important safety information
This manual contains information and warnings that must be followed by the user
for safe operation and to keep the product in a safe condition.
To safely perform service on this product, additional information is provided at
the end of this section. (See page vii, Service safety summary.)
General safety summary
Use the product only as specified. Review the following safety precautions to
avoid injury and prevent damage to this product or any products connected to it.
Carefully read all instructions. Retain these instructions for future reference.
Comply with local and national safety codes.
For correct and safe operation of the product, it is essential that you follow
generally accepted safety procedures in addition to the safety precautions specified
in this manual.
The product is designed to be used by trained personnel only.
Only qualified personnel who are aware of the hazards involved should remove
the cover for repair, maintenance, or adjustment.
Before use, always check the product with a known source to be sure it is
operating correctly.
This product is not intended for detection of hazardous voltages.
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 related to operating the system.
When incorporating this equipment into a system, the safety of that system is the
responsibility of the assembler of the system.
SPG8000A Master Sync / Clock Reference Generator Service Manual v

Important safety information
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.
Ground the product. This product is grounded through the grounding conductor
of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, make sure that the product is properly grounded.
Do not disable the power cord grounding connection.
Power disconnect. The power cord disconnects the product from the power
source. See instructions for the location. Do not position the equipment so that
it is difficult to operate the power cord; it must remain accessible to the user at
all times to allow for quick disconnection if needed.
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.
Do not operate without covers. Do not operate this product with covers or panels
removed, or with the case open. Hazardous voltage exposure is possible.
Avoid exposed circuitry. Do not touch exposed connections and components
when power is present.
Do not operate with suspected failures. If you suspect that there is damage to this
product, have it inspected by qualified service personnel.
Disable the product if it is damaged. Do not use the product if it is damaged
or operates incorrectly. If in doubt about safety of the product, turn it off and
disconnect the power cord. Clearly mark the product to prevent its further
operation.
Before use, inspect voltage probes, test leads, and accessories for mechanical
damage and replace when damaged. Do not use probes or test leads if they are
damaged, if there is exposed metal, or if a wear indicator shows.
Examine the exterior of the product before you use it. Look for cracks or missing
pieces.
Use only specified replacement parts.
Do not operate in wet/damp conditions. Be aware that condensation may occur if
a unit is moved from a cold to a warm environment.
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry. Remove the input signals before you clean
the product.
vi SPG8000A Master Sync / Clock Reference Generator Service Manual