RPM SCA-774 Single Channel Analyzer Board Replacement

Last Updated: 06/18/2025 1:42 AM

The following table lists all the components that make up the document.

Title Type Status Last Updated
Rapiscan VM-250 Vehicle Monitor
Device
Published
06/05/2025 11:26 AM
Rapiscan PM-700 Pedestrian Monitor
Device
Published
06/05/2025 11:30 AM
Rapiscan TM-850 Rail Monitor
Device
Published
06/05/2025 11:31 AM
Rapiscan CM-267 Conveyor Monitor
Device
Published
06/27/2024 1:02 PM
7264 - 1401 - Establish Initial Conditions; Remark:
Procedure Step
Published
04/27/2023 7:00 PM
1401 - Establish Initial Conditions
Instruction
Published
09/30/2022 3:14 PM
7622 - 7592 - Inform system operators; Remark:11335
Procedure Step
Published
04/20/2025 10:15 AM
7592 - Inform system operators
Instruction
Published
06/29/2023 3:20 PM
11335 - Upon arrival, brief system operators on expected work, duration, anticipated ...
Remark
Published
04/20/2025 10:14 AM
7268 - 7231 - Close lane; Remark:7233
Procedure Step
Published
04/27/2023 7:01 PM
9053 - Warning : Traffic should temporarily be rerouted or halted during conduction of this pr...
Annotation
Published
09/27/2023 9:09 AM
7231 - Close lane
Instruction
Published
04/18/2023 1:00 PM
7233 - Use orange safety (traffic control) cones to setup barriers. Practice establi...
Remark
Published
04/24/2023 12:18 PM
7269 - 7232 - Open RPM door; Remark:7234
Procedure Step
Published
04/27/2023 7:02 PM
7232 - Open RPM door
Instruction
Published
04/18/2023 1:02 PM
7234 - Open all doors needed to access components.
Remark
Published
04/19/2025 7:48 PM
7755 - 7679 - Disconnect Ethernet; Remark:11336
Procedure Step
Published
04/20/2025 11:18 AM
7680 - Caution : Make sure to press release button on back of Ethernet cable before removing.
Annotation
Published
07/01/2023 11:54 PM
7679 - Disconnect Ethernet
Instruction
Published
05/16/2025 8:03 PM
11336 - Locate Ethernet connector on top of SC-770 controller. Press release button o...
Remark
Published
04/20/2025 11:21 AM
7270 - 7235 - Power off RPM; Remark:7236
Procedure Step
Published
09/01/2023 7:57 PM
7235 - Power off RPM
Instruction
Published
04/24/2023 12:30 PM
7236 - Move LD-260 switch to OFF position. The PWR ON
Remark
Published
04/27/2023 4:25 PM
7454 - 7290 - Disable tamper switches; Remark:7416
Procedure Step
Published
06/02/2023 5:25 PM
7290 - Disable tamper switches
Instruction
Published
05/01/2023 8:14 AM
7416 - Use a magnet to disable tamper switches for all open doors. Use adhesive tape...
Remark
Published
06/02/2023 1:18 PM
8561 - 7291 - Disable both infrared occupancy sensors; Remark:8514
Procedure Step
Published
09/18/2023 12:05 AM
5291 - Note : It is good practice to verify all cables and connectors are labeled prior to ...
Annotation
Published
10/24/2022 8:35 AM
7291 - Disable both infrared occupancy sensors
Instruction
Published
05/01/2023 8:15 AM
8514 - Verify sensors mounted in control pillar door are receivers.
Remark
Published
09/29/2023 11:52 AM
9205 - To disconnect sensor cable, turn collar counterclockwise and pull away from s...
Remark
Published
09/29/2023 11:52 AM
7827 - 7791 - Remove SCA-774 Board; Remark:
Procedure Step
Published
07/07/2023 10:59 PM
7791 - Remove SCA-774 Board
Instruction
Published
07/07/2023 2:14 PM
7828 - 7793 - Disconnect only signal (BNC) cables from SCA-775 module; Remark:7794
Procedure Step
Published
07/07/2023 11:00 PM
7792 - Note : It is good engineering practice to ensure all cables and connectors are label...
Annotation
Published
07/07/2023 2:17 PM
7793 - Disconnect only signal (BNC) cables from SCA-775 module
Instruction
Published
07/07/2023 2:18 PM
7794 - Remove Signal BNC Cables
Remark
Published
07/07/2023 2:22 PM
7829 - 7796 - Loosen screws in each corner (4) using medium Philips screwdriver and open SC...; Remark:7797
Procedure Step
Published
07/07/2023 11:02 PM
7795 - Caution : If you rotate cover of the SCA-775 down without first pulling out from the bo...
Annotation
Published
07/07/2023 2:23 PM
7796 - Loosen screws in each corner (4) using medium Philips screwdriver and open SC...
Instruction
Published
07/07/2023 2:24 PM
7797 - Normally the cover screws are captured and should not come out of cover. ...
Remark
Published
07/07/2023 2:34 PM
9467 - To prevent breaking the hinge on the module / door, once the retainer screws ...
Remark
Published
10/03/2023 3:32 PM
7830 - 7799 - Disconnect 4 wiring harness assembly/connectors (J6, J8, J10, J11) from SCA-7...; Remark:7800
Procedure Step
Published
07/07/2023 11:04 PM
7798 - Caution : Never remove connectors by pulling on wires.
Annotation
Published
07/07/2023 5:41 PM
7799 - Disconnect 4 wiring harness assembly/connectors (J6, J8, J10, J11) from SCA-7...
Instruction
Published
07/07/2023 5:44 PM
7800 - J8 and J11 should be labeled; write J6 and J10 on the appropriate connector i...
Remark
Published
07/07/2023 9:27 PM
7831 - 7801 - Remove 4 screws at corners of board; Remark:7802
Procedure Step
Published
07/07/2023 11:05 PM
7801 - Remove 4 screws at corners of board
Instruction
Published
07/07/2023 9:28 PM
7802 - Do not lose the screws. They are re-used to secure the SCA-774 board.
Remark
Published
07/07/2023 9:31 PM
7832 - 7803 - Remove board from SCA-775 module; Remark:7804
Procedure Step
Published
07/07/2023 11:06 PM
7803 - Remove board from SCA-775 module
Instruction
Published
07/07/2023 9:32 PM
7804 - BNC connectors are attached to the SCA-774 board and easily slide down then o...
Remark
Published
07/07/2023 9:34 PM
3397 - 3395 - Label faulty component; Remark:3396
Procedure Step
Published
07/21/2024 6:59 AM
3395 - Label faulty component
Instruction
Published
08/07/2021 11:07 AM
3396 - Use tag or tape. Include date of removal, description of failure symptoms, co...
Remark
Published
08/09/2021 11:35 AM
7833 - 7805 - Install New SCA-774; Remark:
Procedure Step
Published
07/07/2023 11:06 PM
7805 - Install New SCA-774
Instruction
Published
07/07/2023 9:35 PM
7834 - 7806 - Install new SCA-774 board; Remark:7807
Procedure Step
Published
07/07/2023 11:07 PM
7806 - Install new SCA-774 board
Instruction
Published
07/07/2023 9:36 PM
7807 - Use screws previously removed.
Remark
Published
07/07/2023 9:38 PM
7835 - 7809 - Reconnect 4 wiring harness assembly/connectors (J6, J8, J10, J11) from SCA-77...; Remark:7810
Procedure Step
Published
10/11/2023 7:37 PM
7808 - Caution : Proper connection of wiring harnesses is critical.
Annotation
Published
07/07/2023 9:39 PM
7809 - Reconnect 4 wiring harness assembly/connectors (J6, J8, J10, J11) from SCA-77...
Instruction
Published
07/07/2023 9:42 PM
7810 - Ensure all pins are engaged. It is easy to install the connectors one pin off...
Remark
Published
07/07/2023 9:44 PM
7836 - 7813 - Reconnect BNC connectors on top of SCA-775 module; Remark:
Procedure Step
Published
07/07/2023 11:42 PM
7811 - Caution : Proper connection of cables is critical.
Annotation
Published
07/07/2023 9:48 PM
7813 - Reconnect BNC connectors on top of SCA-775 module
Instruction
Published
07/07/2023 9:49 PM
7837 - 7814 - Close SCA-775 module cover and tighten 4 screws; Remark:7815
Procedure Step
Published
07/07/2023 11:09 PM
7814 - Close SCA-775 module cover and tighten 4 screws
Instruction
Published
07/07/2023 9:50 PM
7815 - If the follow-on alignment and functional compliance test procedures are to b...
Remark
Published
07/07/2023 9:52 PM
7280 - 7250 - Power on RPM; Remark:7251
Procedure Step
Published
04/27/2023 4:14 PM
7250 - Power on RPM
Instruction
Published
05/01/2023 8:31 AM
7251 - Move LD-260 switch to ON position. The LED PWR ON
Remark
Published
05/10/2023 3:14 PM
7281 - 7252 - Verify RPM start-up; Remark:7253
Procedure Step
Published
04/20/2025 3:26 PM
7252 - Verify RPM start-up
Instruction
Published
04/27/2023 2:23 PM
7253 - RPM will perform a power on self-test (POST) and collect a background radiati...
Remark
Published
05/10/2023 3:14 PM
7279 - 7249 - Return equipment to normal operating condition; Remark:
Procedure Step
Published
04/27/2023 4:13 PM
7249 - Return equipment to normal operating condition
Instruction
Published
04/08/2025 3:22 PM
8587 - 7305 - Enable both infrared occupancy sensors; Remark:8559
Procedure Step
Published
09/17/2023 11:03 PM
5553 - Caution : Correct placement of connectors and wiring is critical to proper operation.
Annotation
Published
10/28/2022 2:19 PM
7305 - Enable both infrared occupancy sensors
Instruction
Published
05/01/2023 8:33 AM
8559 - To reconnect sensor cable, align connectors, push towards sensor, and turn co...
Remark
Published
09/29/2023 12:05 PM
7474 - 7310 - Enable tamper switches; Remark:7451
Procedure Step
Published
06/02/2023 5:41 PM
7310 - Enable tamper switches
Instruction
Published
05/01/2023 8:36 AM
7451 - Remove magnets and/or adhesive tape from door tamper switches.
Remark
Published
04/13/2025 5:46 PM
7781 - 7730 - Reconnect Ethernet; Remark:7731
Procedure Step
Published
04/20/2025 11:00 AM
7730 - Reconnect Ethernet
Instruction
Published
07/02/2023 2:34 AM
7731 - Insert Ethernet connector at top of SC-770 module. Connector will audibly "cl...
Remark
Published
07/02/2023 2:36 AM
7282 - 7254 - Confirm network connection; Remark:7255
Procedure Step
Published
04/27/2023 4:15 PM
7254 - Confirm network connection
Instruction
Published
04/27/2023 2:22 PM
7255 - Contact operators to confirm communications have been reestablished between RPM ...
Remark
Published
05/10/2023 3:15 PM
9385 - 319 - Perform operational test; Remark:9347
Procedure Step
Published
06/16/2025 5:15 PM
319 - Perform operational test
Instruction
Published
06/10/2021 8:31 PM
9347 - DET-RPM-RAP-RM03 RPM Operational Test.
Remark
Published
10/03/2023 12:11 PM
8260 - 8250 - Reopen Lane; Remark:8249
Procedure Step
Published
09/07/2023 3:09 PM
8250 - Reopen Lane
Instruction
Published
09/07/2023 3:09 PM
8249 - Remove orange safety (traffic control) cones
Remark
Published
09/07/2023 3:09 PM
7842 - 7820 - Inform system operators upon completion of maintenance action; Remark:
Procedure Step
Published
07/07/2023 11:15 PM
7820 - Inform system operators upon completion of maintenance action
Instruction
Published
07/07/2023 10:02 PM
322 - 321 - Document maintenance actions; Remark:
Procedure Step
Published
06/17/2021 9:49 AM
321 - Document maintenance actions
Instruction
Published
04/21/2025 11:19 AM
2869 - 2585 - Document maintenance performed; Remark:2866
Procedure Step
Published
06/18/2021 5:58 PM
2585 - Document maintenance performed
Instruction
Published
07/09/2021 12:15 PM
2866 - Record observations, times, and results for the maintenance report.
Remark
Published
04/21/2025 11:39 AM
4706 - 4705 - Submit report; Remark:4864
Procedure Step
Published
06/29/2022 9:50 AM
4705 - Submit report
Instruction
Published
06/29/2022 9:50 AM
4864 - As specified by management or contractual obligations.
Remark
Published
07/28/2022 1:36 PM
Corrective Maintenance Procedure
Document Type
Published
03/02/2020 3:32 PM
Upon SCA-774 board failure
Frequency
Published
07/07/2023 11:22 PM
Warning
Annotation Type
Published
03/02/2020 3:25 PM
Caution
Annotation Type
Published
03/02/2020 3:24 PM
Note
Annotation Type
Published
03/02/2020 3:25 PM
Technician 2
Skill Level
Published
04/09/2020 1:17 AM
Keys to access RPM
Replacement Parts
Published
04/27/2023 6:56 PM
Reflective safety vest if required
Replacement Parts
Published
06/20/2023 4:47 PM
safety glasses
Replacement Parts
Published
07/02/2023 4:48 PM
Ladder; 2 meters, 6 feet tall; non-conducting if required
Replacement Parts
Published
07/02/2023 4:48 PM
Traffic control cones or equivalent if required
Replacement Parts
Published
06/20/2023 4:47 PM
Phillips screwdriver, small
Replacement Parts
Published
07/07/2023 11:39 PM
Phillips screwdriver, medium
Replacement Parts
Published
07/07/2023 11:39 PM
Disconnect Ethernet cable on top of SC-770 box
Image
Published
10/04/2023 2:59 PM
LD-260 Disconnect Switch Power Off
Image
Published
04/24/2023 12:49 PM
Disable tamper switch
Image
Published
09/07/2023 8:22 PM
Disable Tamper Switch
Image
Published
06/02/2023 2:28 PM
Infrared Receiver
Image
Published
09/17/2023 7:09 PM
Infrared Receiver DC
Image
Published
09/29/2023 11:47 AM
Infrared Disconnect Sensor Cable
Image
Published
09/17/2023 7:11 PM
Infrared Sensor Disconnect
Image
Published
09/17/2023 7:12 PM
Disconnect Signal BNC Cables
Image
Published
07/07/2023 2:20 PM
Remove Six (6) Cover Screws
Image
Published
07/07/2023 2:27 PM
Cover screws are captured
Image
Published
10/04/2023 3:01 PM
To prevent breaking the hinge
Image
Published
10/04/2023 3:02 PM
SCA-774 Screws at Corner
Image
Published
07/07/2023 9:30 PM
LD-260 Disconnect Switch Power On
Image
Published
06/04/2025 1:28 PM
Infrared Connection
Image
Published
09/29/2023 12:02 PM
Infrared Cable Installation
Image
Published
09/17/2023 10:12 PM
Infrared Sensor Cable
Image
Published
09/17/2023 10:13 PM
Remove Magnet from Tamper.PNG
Image
Published
09/28/2023 9:37 AM
Remove Magnet on Tamper Switch
Image
Published
06/02/2023 4:31 PM