Installation Note HP 83640A/B/L, 83650A/B/L Synthesized

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Installation Note
HP 83640A/B/L, 83650A/B/L Synthesized Sweepers
Option 004 Front to Rear Panel Output
Retrofit Kit Number 08360-60237
HP Part Number 83650-90007 Supersedes: January 1998
Printed in USA October 1999
The information contained in this document is subject to change without notice.
Hewlett-Packard makes no warranty of any kind with regard to this material, including but not limited to,
the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be
liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.
© Copyright Hewlett-Packard Company 1996, 1998
All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited,
except as allowed under the copyright laws.
1400 Fountaingrove Parkway, Santa Rosa, CA 95403-1799, USA
HP 83640A/B/L, 83650A/B/L Synthesized Sweepers
Option 004 Front to Rear Panel Output
Retrofit Kit Number 08360-60237
Product Affected: . . . . . . . . . . . . . . . . . . . . . . HP 83640A/B/L, 83650A/B/L
Serial Numbers: . . . . . . . . . . . . . . . . . . . . . . . HP 83640A: 3145A and above
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HP 83640B/L, 83650A/B/L: all prefixes
To Be Performed By: . . . . . . . . . . . . . . . . . . . . . .Customer or HP-qualified personnel
This installation note contains the information required to retrofit a standard HP 83640A/B/L or
83650A/B/L synthesized sweeper to an Option 004 (with rear panel output). Having other options on your
instrument will not affect this retrofit.
Installation Kit Parts List
Table 1. Parts Kit 08360-60237 Contents
Hole Plug .625 BNC
Hole Plug .750 RF Out
RF cable, coupler/filter (W51)
RF cable, aux output (W48)
RF cable, attenuator/rear panel (W43)
Rear panel connector plate
Floating BNC cables & PC board (FM, AM, ext ALC Option 004)
Screws for mounting PC board
Pulse cable (Option 004 only)
Pulse cable (Option 002 with Option 004)
Nut for pulse cable
Lock washer for pulse cable, Option 002, and Option 004 PC board
Nut for rear panel RF output connector
Lock washer for rear panel RF output connector
Tie wraps
Installation Note 83650-90007
Part Number
Table 1. Parts Kit 08360-60237 Contents
Part Number
RF connector (J1)
Installation Note
Hex Nuts for Option 002 and 004 PC board 08360-60186
Rear panel Floating BNC assembly (FM, AM, ext ALC Options 002
and 004)
Tools Required
#1 x 3-1/8 in. pozidrive screwdriver
#2 x 4 in. pozidrive screwdriver
T-10 TORX screwdriver
T-15 TORX screwdriver
Small flat bladed screwdriver
5/16-in. (6-mm) open-end wrench
5-mm ball and socket driver
Before you disassemble the instrument, turn the power switch OFF and unplug the
instrument. Failure to unplug the instrument can result in personal injury.
Electrostatic discharge (ESD) can damage or destroy electronic components. All work on
electronic assemblies should be performed at a static-safe workstation. Refer to the
documentation that pertains to your instrument for information about static-safe
workstations and ordering static-safe accessories.
1. Disconnect the AC power line cord.
2. Remove the screw from each of the top two feet on the rear panel.
3. Remove the top two feet.
4. Remove the instrument top cover.
An RF braid is in each of the side channels on the top of the instrument. When reassembling
the instrument, be sure the braid remains in the channels.
Installation Note 83650-90007
Removing the Front Panel
5. Remove the vinyl trim strip from the top front edge of the instrument. (Place a flat screwdriver in
either slot in the trim strip and lift to remove; see Figure 1).
Figure 1. Front Panel Trim Strip
6. Refer to Figure 2. Remove three of the four screws under the trim strip.
7. Remove two of the five screws on the lower front frame edge.
Figure 2. Front Panel Screw Locations
8. Gently pry the front panel and display from the frame.
9. Cut the tie wraps holding the cables.
Installation Note 83650-90007
10. Refer to Figure 3. From the A9, A10, and A11 assemblies, disconnect the four coaxial cables
attached to the BNC connectors, and the source module interface cable (W10).
11. Disconnect the ribbon cables W2 and W3 from the motherboard.
Figure 3. Front Panel BNC and Ribbon Cable Locations
Removing the Front Panel BNC and RF Outputs
12. Refer to Figure 4. Disconnect ribbon cables W4 and W5, the rotary pulse generator (RPG) cable,
and the six-wire display cable W1 from the A3 front panel processor.
13. Remove the eight screws from the A3 assembly.
14. Lift off the front panel processor.
Figure 4. Front Panel Processor Cables
Installation Note 83650-90007
15. Refer to Figure 5. Remove the four screws from the source module interface assembly.
16. Lift off the source module interface assembly.
Figure 5. Source Module Interface Cable
17. Refer to Figure 6. Remove the two screws on each BNC printed circuit assembly attached to the
back of the front panel.
18. Slide out the connectors.
If the washer on the front of the connector is not centered properly, loosen the nut to slide
the connector out.
Figure 6. Front Panel BNC Locations
Installation Note 83650-90007
19. Place one of the small hole plugs provided in each of the front panel BNC holes.
20. Refer to Figure 7. On the lower front frame edge, remove the two screws that hold the RF output
To avoid damaging the connector, do not disassemble the RF output connector assembly.
Only unscrew the connector on the end of the semi-rigid cable.
21. Remove the semi-rigid cable W43 and the RF connector.
Figure 7. Removing the RF Output Connector (Front Panel)
Installation Note 83650-90007
Replacing the Front Panel
22. Refer to Figure 8. Replace the source module interface assembly and attach it with the four screws
removed in step 15.
Figure 8. Source Module Interface
23. Refer to Figure 9. Replace the front panel processor and attach it with the eight screws removed in
step 13.
24. Connect ribbon cables W4 and W5, the rotary pulse generator (RPG) cable, and the six-wire display
cable W1 to the A3 front panel processor.
25. Attach ribbon cables W2 and W3 to the motherboard.
Figure 9. Front Panel Processor
26. Replace the front panel in the frame.
Installation Note 83650-90007
27. Replace the two screws on the lower front frame edge.
28. Replace the three screws on the top front frame edge.
Installing the Rear Panel Outputs
29. If the instrument has a rear panel Aux Output SMA connector, disconnect semi-rigid cable W48
from the rear panel SMA connector.
30. Remove the four bottom feet.
31. Remove the two back feet on the lower edge.
32. Remove the bottom cover, side straps and side panels.
33. Refer to Figure 10. Remove the four screws on the top back edge and the four screws on the bottom
back edge.
34. Slide the rear panel out of the casting.
Figure 10. Rear Panel Removal
Installation Note 83650-90007
35. Refer to Figure 11. Remove the four hole plugs from the rear panel.
36. Attach the BNC and printed circuit assembly to the rear panel with the five screws provided.
Use 08360-60061 for Optin 004 and 08360-60186 for Option 002/004 combination.)
37. Slide the pulse input BNC connector into the rear panel.
38. Place the washer over the BNC connector and attach with the BNC nut.
Figure 11. Option 004 BNC Connector Removal
39. Slide the rear panel back into the casting.
40. Replace the four screws on the bottom back edge and the four screws on the top back edge.
41. Disconnect W51 from the low pass filter FL2 and attenuator AT3 on the RF deck (Figure 12).
Installation Note 83650-90007
Figure 12. W51 RF Cable Location
42. Remove the two hex screws from the RF deck.
43. Carefully pull the RF deck out of the instrument.
44. If the instrument has a rear panel Aux Output, disconnect W48 from the A28 amp/multiplier.
45. Rotate the RF deck 180 degrees (RF Output toward the rear) assuring that all cables remain
attached. Refer to Figure 13 to secure the RF deck in the service position.
Installation Note 83650-90007
Figure 13. RF Deck in the Service Position
46. Connect the new cable W51 to the AT3 attenuator on the RF deck. Position the cable so when the
RF deck is installed it will connect to FL2 without any stress on the cable. Make sure the connection
to AT3 is tight before installing the RF deck.
47. Replace the deck in the synthesizer. Connect W51 to FL2. Be careful that the cable connection to
AT3 remains tight and the cable is not stressed or bent to make the connection. If necessary, remove
the RF deck, loosen the W51 connection to AT3 and reposition the cable as required.
If the RF deck does not fit easily back into the casting, loosen the RF deck bracket screws
on the side of the synthesizer, slide the RF deck into place, and tighten the screws again.
See Figure 14.
Installation Note 83650-90007
Figure 14. RF Deck Bracket Screws
48. Connect the new cable W48 between the A28 amp/multiplier and the rear panel Aux Output SMA
Assembling the Rear Panel RF Output Connector
49. Place the new connector through the new connector plate and attach with the nut and washer
supplied in this kit. Refer to Figure 15.
Figure 15. RF Connector Bracket Assembly for the Rear Panel
50. Loosely attach W43 to the RF connector.
51. Slide the cable through the rear panel and loosely attach cable W43 to the attenuator or directional
coupler (whichever is applicable).
52. Attach the RF plate with the two screws to the rear panel.
53. Tighten the nuts to 10 in-lbs.
Installation Note 83650-90007
54. Replace the front panel in the frame.
55. Replace the two screws on the lower front frame edge.
56. Replace the three screws on the top front frame edge.
57. Replace the instrument side covers and top and bottom covers. (Be sure to replace the RF braid in
the side channels).
58. Replace the four back feet and four bottom feet.
59. Replace the vinyl trim strip on the front edge.
Hardware Configuration Number
60. The calibration constant for the hardware configuration must be updated to reflect the new
configuration. Change the calibration constant and store the constants to memory. If you are
unfamiliar with storing calibration constants, instructions are provided in the “Calibration
Constants” chapter of the Service Guide.
❏ Cal Constant: #463
❏ Value: +4096 (adding Option 004)
Operation Verification
61. Perform the following adjustments and performance tests.
Performance Tests
Full Self-Test
Power Flatness
If any failures occur, perform the Step Attenuator Flatness adjustment (auto) and the Step
Attenuator Flatness Test (auto).
This completes the installation.
Installation Note 83650-90007