PRM-470 LCD Assembly Replacement | FRONTLINE Maintenance Tool

Last Updated: 04/25/2025 1:34 AM

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

Title	Type	Status	Last Updated
Rapiscan PRM-470 CG	Device	Published	10/28/2024 3:40 PM
Rapiscan PRM-470 CGN	Device	Published	10/28/2024 3:33 PM
247 - 257 - Prepare instrument; Remark:	Procedure Step	Published	04/11/2025 9:08 PM
257 - Prepare instrument	Instruction	Published	04/11/2025 9:07 PM
607 - 205 - Disconnect charger; Remark:	Procedure Step	Published	07/23/2021 2:42 PM
205 - Disconnect charger	Instruction	Published	07/23/2021 2:42 PM
260 - 313 - Power off instrument; Remark:	Procedure Step	Published	07/23/2021 2:43 PM
313 - Power off instrument	Instruction	Published	07/23/2021 2:41 PM
261 - 65 - Loosen four (4) cover screws; Remark:264	Procedure Step	Published	08/12/2021 7:25 AM
65 - Loosen four (4) cover screws	Instruction	Published	07/22/2021 12:38 PM
264 - Use a medium Phillips (PH2) screwdriver. Screws do not need to be completely ...	Remark	Published	07/20/2021 3:59 PM
263 - 262 - Remove instrument cover; Remark:413	Procedure Step	Published	08/11/2021 1:41 PM
2771 - Note : There are high-voltage detector circuit boards inside the instrument; however...	Annotation	Published	10/04/2022 11:06 AM
262 - Remove instrument cover	Instruction	Published	07/20/2021 3:35 PM
413 - PRM-470 Remove Instrument Cover	Remark	Published	11/01/2024 8:32 PM
267 - 266 - Locate battery connection; Remark:272	Procedure Step	Published	08/11/2021 1:42 PM
3033 - Note : PRM-470 CGN models have an additional board and connectors not shown in remar...	Annotation	Published	10/04/2022 11:07 AM
266 - Locate battery connection	Instruction	Published	07/20/2021 3:36 PM
272 - Battery connection is labeled 1.	Remark	Published	07/21/2021 12:11 PM
271 - 270 - Disconnect battery; Remark:414	Procedure Step	Published	08/11/2021 1:42 PM
1345 - Note : It is good practice to ensure all cables and connectors are labeled prior to ...	Annotation	Published	10/04/2022 11:08 AM
270 - Disconnect battery	Instruction	Published	07/20/2021 3:37 PM
414 - PRM-470_Disconnect_battery	Remark	Published	11/02/2024 1:21 PM
443 - 442 - Disconnect remaining connectors; Remark:	Procedure Step	Published	08/11/2021 1:43 PM
442 - Disconnect remaining connectors	Instruction	Published	07/22/2021 12:39 PM
618 - 615 - Uninstall PRCB-472 board; Remark:	Procedure Step	Published	08/12/2021 7:16 AM
615 - Uninstall PRCB-472 board	Instruction	Published	08/07/2021 11:00 AM
446 - 445 - Remove four (4) mounting screws; Remark:444	Procedure Step	Published	08/11/2021 1:43 PM
445 - Remove four (4) mounting screws	Instruction	Published	07/22/2021 12:41 PM
444 - Use a small Phillips (PH1) screwdriver. Retain screws.	Remark	Published	07/22/2021 1:19 PM
450 - 449 - Raise edge of PRCB-472 board to access underside; Remark:448	Procedure Step	Published	08/11/2021 1:48 PM
447 - Caution : Do not damage ribbon cable attached to the underside of PRCB-472.	Annotation	Published	10/04/2022 11:11 AM
449 - Raise edge of PRCB-472 board to access underside	Instruction	Published	07/22/2021 12:42 PM
448 - PRM-470 Lifting PRCB-472 circuit board	Remark	Published	11/02/2024 4:30 PM
756 - 452 - Disconnect overlay button connector; Remark:754	Procedure Step	Published	08/12/2021 7:43 AM
452 - Disconnect overlay button connector	Instruction	Published	07/22/2021 12:43 PM
754 - IO Remove ribbon cable PRM-470 LCD non-functional	Remark	Published	11/02/2024 4:53 PM
757 - 711 - Uninstall faulty LCD assembly; Remark:	Procedure Step	Published	08/12/2021 7:42 AM
711 - Uninstall faulty LCD assembly	Instruction	Published	08/11/2021 11:43 AM
758 - 632 - Remove four (4) LCD assembly mounting screws; Remark:755	Procedure Step	Published	08/12/2021 7:42 AM
632 - Remove four (4) LCD assembly mounting screws	Instruction	Published	08/11/2021 11:45 AM
755 - Use a small Phillips (PH1) screwdriver. Retain screws.	Remark	Published	08/11/2021 11:46 AM
761 - 638 - Disconnect LCD assembly; Remark:759	Procedure Step	Published	08/12/2021 7:45 AM
638 - Disconnect LCD assembly	Instruction	Published	08/07/2021 11:06 AM
759 - The LEDs on either side of LCD assembly may need to be slightly spread to all...	Remark	Published	08/11/2021 11:47 AM
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
764 - 713 - Install new LCD assembly; Remark:	Procedure Step	Published	08/12/2021 7:41 AM
713 - Install new LCD assembly	Instruction	Published	08/11/2021 11:50 AM
762 - 647 - Set LCD assembly in place; Remark:760	Procedure Step	Published	08/12/2021 7:40 AM
647 - Set LCD assembly in place	Instruction	Published	08/07/2021 11:09 AM
760 - LEDs on either side of the display may need to be slightly spread to allow fo...	Remark	Published	08/11/2021 11:52 AM
763 - 649 - Reinstall four (4) mounting screws; Remark:753	Procedure Step	Published	08/12/2021 7:40 AM
649 - Reinstall four (4) mounting screws	Instruction	Published	08/07/2021 11:10 AM
753 - Use a small Phillips (PH1) screwdriver.	Remark	Published	08/11/2021 11:53 AM
465 - 463 - Reconnect overlay button connector; Remark:464	Procedure Step	Published	08/11/2021 1:51 PM
462 - Caution : Correct placement of connectors and wiring is critical to proper operation.	Annotation	Published	09/28/2023 2:13 PM
463 - Reconnect overlay button connector	Instruction	Published	07/22/2021 12:50 PM
464 - PRM-470 - Connecting ribbon cable to overlay button connector	Remark	Published	11/02/2024 3:35 PM
470 - 468 - Set PRCB-472 board over mounting posts; Remark:469	Procedure Step	Published	08/11/2021 1:52 PM
468 - Set PRCB-472 board over mounting posts	Instruction	Published	07/22/2021 12:52 PM
469 - Position ribbon cable to avoid obstructing PRCB-472 mounting hole.	Remark	Published	07/22/2021 1:12 PM
769 - 471 - Reinstall four (4) mounting screws; Remark:472	Procedure Step	Published	08/12/2021 7:39 AM
471 - Reinstall four (4) mounting screws	Instruction	Published	07/22/2021 12:53 PM
472 - Use a small Phillips (PH1) screwdriver.	Remark	Published	07/22/2021 1:13 PM
684 - 683 - Finish instrument assembly; Remark:	Procedure Step	Published	08/12/2021 7:13 AM
683 - Finish instrument assembly	Instruction	Published	08/07/2021 11:11 AM
500 - 498 - Reconnect all connectors except battery; Remark:499	Procedure Step	Published	08/11/2021 2:02 PM
498 - Reconnect all connectors except battery	Instruction	Published	07/22/2021 1:02 PM
499 - Do not connect location 1.	Remark	Published	07/22/2021 1:17 PM
306 - 305 - Reconnect battery; Remark:416	Procedure Step	Published	08/11/2021 3:11 PM
305 - Reconnect battery	Instruction	Published	07/29/2021 3:48 PM
416 - PRM-470 Battery Replacement - Reconnect battery	Remark	Published	11/02/2024 2:02 PM
308 - 307 - Replace front cover; Remark:	Procedure Step	Published	08/11/2021 2:03 PM
304 - Caution : Ensure all wiring is inside the instrument while replacing cover.	Annotation	Published	10/04/2022 11:10 AM
307 - Replace front cover	Instruction	Published	07/20/2021 3:57 PM
310 - 309 - Tighten four (4) cover screws; Remark:417	Procedure Step	Published	08/11/2021 2:04 PM
569 - Caution : Do not overtighten screws.	Annotation	Published	06/16/2021 2:31 PM
309 - Tighten four (4) cover screws	Instruction	Published	07/22/2021 1:02 PM
417 - Use a medium Phillips (PH2) screwdriver.	Remark	Published	07/22/2021 1:18 PM
359 - 319 - Perform operational test; Remark:347	Procedure Step	Published	07/20/2021 10:55 AM
319 - Perform operational test	Instruction	Published	06/10/2021 8:31 PM
347 - Perform DET-HHD-RAP-RM01 PRM-470 Operational Test.	Remark	Published	07/21/2021 12:22 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
20 minutes	Duration	Published	05/18/2020 5:44 PM
As Needed	Frequency	Published	04/01/2020 11:36 AM
Note	Annotation Type	Published	03/02/2020 3:25 PM
Caution	Annotation Type	Published	03/02/2020 3:24 PM
Technician 2	Skill Level	Published	04/09/2020 1:17 AM
Medium Phillips (PH2) screwdriver	Tools	Published	04/24/2020 4:40 PM
Small Phillips (PH1) screwdriver	Tools	Published	05/14/2020 2:48 PM
Needle nose pliers	Tools	Published	05/06/2020 4:10 PM
PRM470_Remove_Screws_Top_Case	Image	Published	05/08/2020 6:05 PM
PRM-470_di_CGN_open_00536	Image	Published	02/19/2023 11:26 AM
Battery_connection_is_labeled_1	Image	Published	02/19/2023 10:46 AM
PRM-470_Disconnect_battery	Image	Published	05/09/2020 8:40 PM
PRM-470 Remove four mounting screws on PRCB-472	Image	Published	05/11/2020 7:57 PM
PRM-470_Raise_edge_of _PRCB-472_board_gamma_on	Image	Published	05/20/2020 2:04 PM
PRM-470 Remove ribbon cable from PRCB-472 LCD Non-Functional	Image	Published	05/20/2020 10:05 AM
PRM-470 - Remove four LCD assembly mounting screws_LCD side	Image	Published	05/20/2020 9:50 AM
PRM-470 - Lifting LCD assembly off PRCB-472 board_without_Posts	Image	Published	05/20/2020 9:56 AM
prm-470 - Install LCD assembly onto PRCB-472_without Posts	Image	Published	05/20/2020 9:59 AM
PRM-470 - Install four LCD assembly mounting screws_LCD Side	Image	Published	05/20/2020 9:52 AM
PRM-470 - Connecting ribbon cable to overlay button connector	Image	Published	05/12/2020 12:56 PM
PRM-470_Set_PRCB-472_board_gamma_on	Image	Published	05/20/2020 2:13 PM
Remove metal brackets	Image	Published	09/08/2023 2:50 PM
Remove metal brackets 2	Image	Published	09/08/2023 2:51 PM
PRM470_Battery_connection_is_labeled_1	Image	Published	02/19/2023 10:40 AM
PRM-470_Reconnect_battery	Image	Published	05/10/2020 8:16 PM
PRM-470_Tighten_4_cover_screws	Image	Published	05/10/2020 8:22 PM

DET-HHD-RAP-CM07

Replace LCD assembly (LCD screen and display circuit board) on PRM-470.

Equipment Hierarchy

Rapiscan PRM-470 CG

Rapiscan PRM-470 CGN

Frequency

As Needed

Technician Level

Technician 2

x 1

Duration

Time increment

20 minutes

Length of time

Tools Required

Medium Phillips (PH2) screwdriver

Small Phillips (PH1) screwdriver

Needle nose pliers

Materials Required

LCD Assembly

Originators

Tucker, Brian

Originating Organization

PNNL

Approver

Cody Hostick

Safety Concerns

Electrical

Retest Requirements

PRM-470 Operational Test

Final Documentation

Corrective Maintenance Report

Departmental Coordination

Prior to arrival, notify operators concerning expected work and duration.

Date of Origin

2021-03-01

Version

0.00

Step 1

Main Step

247 - 257 - Prepare instrument; Remark:

Step 00

607 - 205 - Disconnect charger; Remark:

Step 00

260 - 313 - Power off instrument; Remark:

Step 00

261 - 65 - Loosen four (4) cover screws; Remark:264

Step 00

65 - Loosen four (4) cover screws

Loosen four (4) cover screws

264 - Use a medium Phillips (PH2) screwdriver. Screws do not need to be completely ...

Use a medium Phillips (PH2) screwdriver. Screws do not need to be completely removed.

263 - 262 - Remove instrument cover; Remark:413

2771 - Note : There are high-voltage detector circuit boards inside the instrument; however...

Type

Note

There are high-voltage detector circuit boards inside the instrument; however, they carry an extremely small current that does not pose a health risk.

Step 00

413 - PRM-470 Remove Instrument Cover

267 - 266 - Locate battery connection; Remark:272

3033 - Note : PRM-470 CGN models have an additional board and connectors not shown in remar...

Type

Note

PRM-470 CGN models have an additional board and connectors not shown in remark images.

Step 00

266 - Locate battery connection

Locate battery connection

272 - Battery connection is labeled 1.

Battery connection is labeled 1.

271 - 270 - Disconnect battery; Remark:414

1345 - Note : It is good practice to ensure all cables and connectors are labeled prior to ...

Type

Note

It is good practice to ensure all cables and connectors are labeled prior to disconnection.

Step 00

414 - PRM-470_Disconnect_battery

To disconnect battery, pull up on the battery wire connector on the master circuit board

443 - 442 - Disconnect remaining connectors; Remark:

Step 00

442 - Disconnect remaining connectors

Disconnect remaining connectors

Step 2

Main Step

618 - 615 - Uninstall PRCB-472 board; Remark:

Step 00

615 - Uninstall PRCB-472 board

Uninstall PRCB-472 board

446 - 445 - Remove four (4) mounting screws; Remark:444

Step 00

445 - Remove four (4) mounting screws

Remove four (4) mounting screws

444 - Use a small Phillips (PH1) screwdriver. Retain screws.

Use a small Phillips (PH1) screwdriver. Retain screws.

Remove the four screws at each corner of the PRCB-472 circuit board

450 - 449 - Raise edge of PRCB-472 board to access underside; Remark:448

447 - Caution : Do not damage ribbon cable attached to the underside of PRCB-472.

Type

Caution

Do not damage ribbon cable attached to the underside of PRCB-472.

Step 00

449 - Raise edge of PRCB-472 board to access underside

Raise edge of PRCB-472 board to access underside

448 - PRM-470 Lifting PRCB-472 circuit board

756 - 452 - Disconnect overlay button connector; Remark:754

Step 00

452 - Disconnect overlay button connector

Disconnect overlay button connector

754 - IO Remove ribbon cable PRM-470 LCD non-functional

Step 3

Main Step

757 - 711 - Uninstall faulty LCD assembly; Remark:

Step 00

711 - Uninstall faulty LCD assembly

Uninstall faulty LCD assembly

758 - 632 - Remove four (4) LCD assembly mounting screws; Remark:755

Step 00

632 - Remove four (4) LCD assembly mounting screws

Remove four (4) LCD assembly mounting screws

755 - Use a small Phillips (PH1) screwdriver. Retain screws.

Use a small Phillips (PH1) screwdriver. Retain screws.

Four LCD assembly mounting screws on the corners of assembly

761 - 638 - Disconnect LCD assembly; Remark:759

Step 00

759 - The LEDs on either side of LCD assembly may need to be slightly spread to all...

The LEDs on either side of LCD assembly may need to be slightly spread to allow for removal.

3397 - 3395 - Label faulty component; Remark:3396

Step 00

3396 - Use tag or tape. Include date of removal, description of failure symptoms, co...

Use tag or tape. Include date of removal, description of failure symptoms, country, site, and lane number. Dispose per Nuclear Smuggling Detection and Deterrence (NSDD) guidance or contractual requirements.

Step 4

Main Step