CiDRA SONARtrac 20924 User manual

SONARtrac™ Rework Instruction
RI00007 Rev: 02
Subject: Procedure for
Replacement of Foundation
Fieldbus Board P/N 20924 Page 1 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com

The following procedures provide the list of tools, materials, and procedures for
replacing the P/N 20924 Foundation Fieldbus Electronics Board assembly.
Procedure A on the following pages should be used if the transmitter is installed in a
location that is not suitable for electronics rework.
Procedure B on the following pages can be used if the transmitter is installed in an
environment that is suitable for rework of electronic assemblies.
In all cases, carefully read the entire document prior to starting replacement.
If there are any questions or comments please contact CiDRA Customer Support.
Document Change History
Date Revision Changed By ECO # Description of Change
25Jul08 01 Griffin /
Markoja 08-0066 Initial Release
3Nov08 02 Markoja 08-0066A Change standoff length from 3” to 2”

SONARtrac™ Rework Instruction
RI00007 Rev: 02
Subject: Procedure for
Replacement of Foundation
Fieldbus Board P/N 20924 Page 2 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com
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SONARtrac™ Rework Instruction RI00007 Rev: 02
Subject: Procedure for Replacement of Foundation
Fieldbus Board P/N 20924 Page 3 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com

Procedure A
The following procedure should be used if the transmitter is installed in a location that is not suitable for
electronics rework.
Tools Required:
Qty P/N Description Recommended Tools
1 Phillips Head Screw Driver, #2 Qty P/N Description
1 Flat Head Screw Driver, 2mm 1 5 in-lfftorque driver with 3/32-inch hex bit
1 3/32-inch Allen Hex Wrench 1 12 in-lfftorque driver with #2 Phillips bit
1 ESD Wrist Strap 1 18 in-lfftorque driver with #2 Phillips bit
1 25 in-lfftorque driver with #2 Phillips bit
Materials:
Item
No. Qty Part No. Description
1 1 Kit, Foundation Fieldbus Board Assembly

SONARtrac™ Rework Instruction RI00007 Rev: 02
Subject: Procedure for Replacement of Foundation
Fieldbus Board P/N 20924 Page 4 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com
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Procedure:
1. Remove power from transmitter in accordance with site
specific lockout / tagout procedures.
2. Open transmitter door.
3. Either:
3.1 Remove power cables and all input / output and
ground cables from Connector Terminal Board
Assembly (CTBA).
3.2 Move transmitter to work shop.
3.3 Install personnel ESD Wrist Strap.
3.4 Remove 4ea chassis screws. Note: screws are
captive.
3.5 Remove ground wire from CTBA.
3.6 Remove transmitter chassis from transmitter
enclosure. OR,
3.7 Remove power cables from terminal board.
3.8 Remove input / output cable connector removable
terminal blocks from CTBA connectors.
3.9 Remove ground wire from removable terminal block.
3.10Install personnel ESD Wrist Strap.
3.11Remove 4ea chassis screws. Note: screws are
captive.
3.12Remove transmitter chassis from transmitter
enclosure.
3.13Place chassis in ESD safe bag.
3.14 Move chassis to work shop.
Figure 1 Transmitter
3
3 3
3
2
4
5
1
1. Transmitter enclosure
2. Transmitter chassis
3. Chassis screws (4 places)
4. Connector Terminal Board Assembly (CTBA) with
pluggable connectors (not shown)
5. Power input
6. Display chassis
6

SONARtrac™ Rework Instruction RI00007 Rev: 02
Subject: Procedure for Replacement of Foundation
Fieldbus Board P/N 20924 Page 5 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com
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Note: While performing the following steps operator needs to use
appropriate ESD personal grounding protection. Be sure to retain
all hardware for reassembly.
4. Attach 4ea 2 inch standoffs to chassis screws.
5. Stand chassis on the standoffs.
6. Remove the lower display chassis screw on each side of
the display chassis.
7. Loosen upper display chassis screw 1/2 – turn on each
side of the display chassis.
Figure 2 Transmitter Chassis
8. Tilt the chassis forward half way.
9. Remove the ethernet cable from the ethernet coupler
on the display chassis.
10. Fully tilt the display forward.
11. Remove the 5ea #6-32x5/16” screws from the CTBA.
1. Standoffs (4 places)
2. Lower display chassis screw
(removed)
3. Upper display chassis screw
loosened ½ turn
4. Ethernet cable removed from
coupler
5. CTBA (5 ea screws removed)
1
1
2
2
3
3
4
5

SONARtrac™ Rework Instruction RI00007 Rev: 02
Subject: Procedure for Replacement of Foundation
Fieldbus Board P/N 20924 Page 6 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com

12. Disconnect ribbon cable jumpers J-3 and J-4 from the
Fieldbus Interface Board Assembly (FIBA) and slide the
connectors through the slot on the FIBA.
13. Lay the CTBA on the work bench.
14. Disconnect cable jumpers J-2 and J-1 from the FIBA.
Figure 3 J1 – J4 Cable Connections
15. Remove 6ea #6-32x5/8” screws from FIBA heat sink
plate.
16. Remove FIBA Assembly from the chassis.
Figure 4 FIBA Heat Sink
J3
J4 J2
J1
6ea
screw

SONARtrac™ Rework Instruction RI00007 Rev: 02
Subject: Procedure for Replacement of Foundation
Fieldbus Board P/N 20924 Page 7 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com

17. Remove 4ea #4-40x1/4” socket head cap screws from
Fieldbus Board.
18. Carefully remove the Fieldbus Board from connector J5
(30 pin connector) and J5-B (2 pin connector).
Figure 5 FBIA Screw Removal
19. Carefully install the new Fieldbus Board as follows:
20. Align the J5 and J5-B connectors with their mating
holes.
21. Press the pins into the connectors.
22. Inspect the pins to ensure all are properly installed.
23. Put Loctite 242 on the threads of the 4ea #4-40x1/4”
socket head cap screw threads.
24. Install the 4ea screws and tighten to recommended
torque of 5in-lbf.
Figure 6 Fieldbus Board Reinstallation
4ea
screw

SONARtrac™ Rework Instruction RI00007 Rev: 02
Subject: Procedure for Replacement of Foundation
Fieldbus Board P/N 20924 Page 8 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com

25. Reinstall the FIBA using the 6ea #6-32x5/8” screws. Prior
to tightening 6 screws be sure that no wires are pinched
beneath the heat-sink plate. Tighten screws to
recommended torque 12in-lbf.
26. Reinstall Ribbon Cables to J3 and J4.
27. Install Cable P/N 20932 to J4 first.
28. Install Cable P/N 20931 to J3 second.
29. Install J1 and J2 cables.
30. Reinstall the CTBA using 5ea #6-32x5/16” screws.
Tighten screws to recommended torque of 12in-lbf.
31. Tilt display chassis forward.
32. Reconnect ethernet cable to ethernet coupler.
33. Carefully title the display chassis into place. Note:
Ensure ribbon cable is not pinched.
34. Reinstall 2ea 8-32x5/16” screws.
35. Tighten all 4ea 8-32x5/16” screws to recommended
torque of 18in-lbf.
36. Remove 4ea 2” standoff from the chassis mounting
screws.
37. Reinstall transmitter chassis assembly into transmitter
enclosure. Tighten 4 screws to recommended torque of
25in-lbf.
38. Reinstall ground wire to terminal board.
39. Reinstall all wires or removable terminal board
connectors

SONARtrac™ Rework Instruction RI00007 Rev: 02
Subject: Procedure for Replacement of Foundation
Fieldbus Board P/N 20924 Page 9 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com

Procedure B
The following procedure can be used if the transmitter is installed in an environment that is suitable for
rework of electronic assemblies.
Tools Required:
Qty P/N Description Recommended Tools
1 Phillips Head Screw Driver, #2 Qty P/N Description
1 Flat Head Screw Driver, 2mm 1 5 in-lfftorque driver with 3/32-inch hex bit
1 3/32-inch Allen Hex Wrench 1 12 in-lfftorque driver with #2 Phillips bit
1 ESD Wrist Strap 1 18 in-lfftorque driver with #2 Phillips bit
1 25 in-lfftorque driver with #2 Phillips bit
Materials:
Item No. Qty Part No. Description
1 1 Kit, Foundation Fieldbus Board Assembly

SONARtrac™ Rework Instruction RI00007 Rev: 02
Subject: Procedure for Replacement of Foundation
Fieldbus Board P/N 20924 Page 10 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com

Note: While performing the following steps operator needs to
use appropriate ESD personal grounding protection. Be sure
to retain all hardware for reassembly.
1. Remove power from the transmitter using onsite specific
lockout / tagout safety procedures.
2. Open the transmitter door.
3. Remove the 5ea #6-32x5/16” screws from the Connector
Terminal Board Assembly (CTBA).
Figure 1 CTBA mounting screws
4. Fold the CTBA forward so it is supported by the
cables.
5. Remove the ribbon cables from J12 and J13 on the
underside of the CTBA.
Figure 2 Removing jumpers J12 and J13

SONARtrac™ Rework Instruction RI00007 Rev: 02
Subject: Procedure for Replacement of Foundation
Fieldbus Board P/N 20924 Page 11 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com

6. Remove the 6ea #6-32x5/8” screws from the Fieldbus
Interface Board Assembly (FIBA).
Figure 3 Removing FIBA mounting screws
7. Carefully lower the FIBA down and free from
beneath the display assembly rotating 90° to the left
to be able to access the Fieldbus board assembly.
Note: It may be necessary to temporarily reposition
the Ethernet cable and the chassis ground wire.
Figure 4 Removing FIBA
Chassis
ground
wire
Ethernet
Cable

SONARtrac™ Rework Instruction RI00007 Rev: 02
Subject: Procedure for Replacement of Foundation
Fieldbus Board P/N 20924 Page 12 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com
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8. Remove the 4ea #4-40x1/4” socket head cap screws from
the Fieldbus board.
Figure 5 Removing Fieldbus board mounting screws
9. Carefully lift the Fieldbus board off of the J5 (30 pin
connector) and J5-B (2 pin connector) connector pins
on the mating circuit card.
Figure 6 Fieldbus board removed
Remove 4
screws

SONARtrac™ Rework Instruction RI00007 Rev: 02
Subject: Procedure for Replacement of Foundation
Fieldbus Board P/N 20924 Page 13 of 13
CiDRA Corporate Services 50 Barnes Park North Wallingford, CT 06492
Tel. [phone] Fax. [phone] www.cidra.com

10.Carefully install the new Fieldbus board as follows:
10.1 Align the J5 and J5-B connector pins with their
mating holes.
10.2 Press the pins into the connectors.
10.3 Inspect the pins to ensure all are properly installed.
Figure 7 Installing new Fieldbus board
11.Put Loctite 242 on the threads of the 4ea #4-40x1/4”
socket head cap screw threads.
12. Install the 4ea screws and tighten to recommended
torque of 5in-lbf.
13.Carefully reinstall the FIBA in to location using the
6ea #6-32x5/8” screws. Prior to tightening 6 screws
be sure that no wires are pinched beneath the
heatsink plate. Tighten screws to recommended
torque 12in-lbf
14.Relocate the Ethernet cable and Chassis ground wire
moved in earlier step 7
15.Reconnect the ribbon cables to J12 and J13 of the
CTBA previously removed in step 5.
16. Reinstall the CTBA using 5ea #6-32x5/16” screws.
Tighten screws to recommended torque of 12in-lbf.
17.Close the enclosure cover.
18.Reapply power to the transmitter.