Instructions
050-3664-00 and 050-3665-00
A70 CPU Board Replacement Kit
AFG3021 and AFG3022
075-0944-00
www.tektronix.com
075094400
075094400
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
supercedes 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.
14200 SW Karl Braun Drive or 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.tektronix.com to find contacts in your area.
Service Safety Summary
Only qualified personnel should perform service procedures. Read this Service
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 first aid and resuscitation is
present.
Disconnect Power. To avoid electric shock, disconnect the mains 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 product. Disconnect power, remove battery (if applicable), and disconnect
test leads before removing protective panels, soldering, or replacing components.
To avoid electric shock, do not touch exposed connections.
A70 CPU Board Replacement i
Service Safety Summary
Symbols and Terms
Terms in this Manual. These terms may appear in this manual:
WAR NI NG . 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.
Terms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read
the marking.
CAUTION indicates a hazard to property including the product.
ii A70 CPU Board Replacement
Kit Description
Use these instructions to replace the A70 CPU board on the following products:
AFG3021 (kit part number 050-3664-00)
AFG3022 (kit part number 050-3665-00)
Minimum Tool and Equipment List
The following tools are required for removing and reassembling the modules:
Torque-limiting screwdriver, long shank, 8 lb-in (0.85 N m) range with Torx
T-15 tip
16 mm (5/8 inch) deep socket with wide center hole
7 mm (9/32 inch) socket
Torque wrench to 30 in-lb (3.3 Nm)
Screwdriver with 1/4 inch flat blade
Phillips head screwdriver
Kit Parts List
Pliers (all-purpose and needle-nose)
Tweezers
Hair drier
AFG3000 Series Arbitrary/Function Generators Service Manual
The following tables show the replacement kit configuration:
Table 1: 050-3664-00 kit parts
Quantity Part number Description
1 each 075-0944-00 MANUAL, KIT INSTRUCTIONS
2 each 210-0056-00 WASHER, LOCK; #10 SPLIT, 0.047 THK, SI BRZ NP
1 each 210-1544-00 WASHER, SPRING; 0.610 OD X 0.490 ID X 0.007 THK, WAVE
SHAPE, STAINLESS STEEL
2 each 213-1061-00 JACKSCREW; 6-32 X 0.320 EXT THD, M3.5 X 0.6-6 INT THD
X 0.215L, GPIB, BLACK OXIDE
1 each 220-0265-00 NUT, PLAIN, HEX; 0.5-28 X 0.625 HEX, BRS, NKL PL
1 each 335-1828-00 MARKER, IDENT; LABEL, REAR PANEL, 2.05 X 9.51, 0.010
PC FILM, LEXAN, W/ADHESIVE BACK
A70 CPU Board Replacement 1
Kit Description
Table 1: 050-3664-00 kit parts (cont.)
Quantity Part number Description
1 each 342-1135-00 INSULATOR, BSHG:NYLON, 0.509 X 0.470 D HOLE X 0.687
OD X 0.035 T
1 each 671-5815-04 CIRCUIT BD ASSY; A72 CPU MAIN
Table 2: 050-3665-00 kit parts
Quantity Part number Description
1 each 075-0944-00 MANUAL, KIT INSTRUCTIONS
2 each 210-0056-00 WASHER, LOCK; #10 SPLIT, 0.047 THK, SI BRZ NP
1 each 210-1544-00 WASHER, SPRING; 0.610 OD X 0.490 ID X 0.007 THK, WAVE
SHAPE, STAINLESS STEEL
2 each 213-1061-00 JACKSCREW; 6-32 X 0.320 EXT THD, M3.5 X 0.6-6 INT THD
X 0.215L, GPIB, BLACK OXIDE
1 each 220-0265-00 NUT, PLAIN, HEX; 0.5-28 X 0.625 HEX, BRS, NKL PL
1 each 335-1829-00 MARKER, IDENT; LABEL, REAR PANEL, 2.05 X 9.51, 0.010
PC FILM, LEXAN, W/ADHESIVE BACK
1 each 342-1135-00 INSULATOR, BSHG:NYLON, 0.509 X 0.470 D HOLE X 0.687
OD X 0.035 T
1 each 671-5815-04 CIRCUIT BD ASSY; A72 CPU MAIN
Related Documents
NOTE. Tektronix provides the A72 CPU board for the replacement of the A70 CPU
board. When you install the A72 board, the GPIB and LAN connectors are present
on the instrument rear panel.
AFG3000 Series Arbitrary/Function Generators Service Manual, Tektronix
part number 071-1640-02, available on the Tektronix Web site at
www.tektronix.com/manuals
AFG3000 Series Arbitrary/Function Generators Quick Start User Manual,
Tektronix part number 071-1631-XX, available on the Tektronix Web site at
www.tektronix.com/manuals
2 A70 CPU Board Replacement
Installation Instructions
NOTE. You will need to refer to the AFG3000 Series Arbitrary/Function
Generators Service Manual while performing this procedure.
These instructions are for personnel who are familiar with servicing the product. If
you need further details for disassembling or reassembling the product, refer to the
appropriate product manual. Contact your nearest Tektronix, Inc., Service Center
or Tektronix Factory Service if you need installation assistance.
CAUTION. To prevent static discharge damage, service the product only in a
static-free environment. Observe standard handling precautions for static-sensitive
devices while installing this kit. Always wear a grounded wrist strap, grounded foot
strap, and static-resistant apparel while installing this kit.
Remove
Power off the instrument and remove the A70 board, using the removal procedure
provided in the AFG3000 Series Arbitrary/Function Generators Service Manual.
Install
1. Use a hair drier to warm up the lexan label attached to your instrument rear
case. Carefully remove the label from the rear case after the warm-up.
Lexan label
Rear case
2. Remove any residual adhesive glue from the rear case.
A70 CPU Board Replacement 3
Installation Instructions
3. Attach the new label (part number 335-1828-00 or 335-1829-00) to the rear
4. Install the A72 CPU board and reassemble the instrument, using the
Setting the Serial Number
When you replace the CPU board, you must set the serial number. Perform the
following procedure to set the serial number:
1. Enable the service mode as instructed in the AFG3000 Series
2. Push the front-panel Utility button, and then push the -more- bezel button
3. Push the Service Menu > Factory Initialize > Serial Number buttons.
case.
instructions provided in the AFG3000 Series Arbitrary/Function Generators
Service Manual.
Arbitrary/Function Generators Service Manual.
twice.
4. Enter the serial number with numeric keys and Function buttons.
NOTE. Use the Function buttons to enter alphabetical characters. The Sine to
More... buttons correspond to A through F.
Adjustment after Board Replacement
When you replace the CPU board, you must perform the adjustment procedures
described in the AFG3000 Series Arbitrary/Function Generators Service Manual.
❖ End of document ❖
4 A70 CPU Board Replacement
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