Last Updated: 04/24/2025 1:47 AM
The following table lists all the components that make up the document.
DET-HHD-STE-TA6-CM02
This procedure provides instructions on the replacement of the top housing of the TA600 Radiation Pager manufactured by Sensor Technology Engineering (STE). Replacement of this component addresses two issues: difficulty pressing the display button and difficulty turning the power knob. If the display button is not difficult to press, but the power button is difficult to turn, then refer to DET-HHD-STE-TA6-CM01, TA600 Power Knob Adjustment. The 0.05-in. [inch] hex driver needed to perform this procedure is not a commonly available tool and should be obtained in advance of attempting this procedure. It is also recommended to use a magnifying glass as the connections, screws and wires are very small.
Equipment Hierarchy
Sensor Tech TA600 Radiation Pager
Frequency
As Needed
Display button is difficult to press
Power knob is difficult to turn
Technician Level
Technician Level
Technician 2
x 1
Duration
Time increment
hour
Length of time
1
Tools Required
Coin screwdriver (STE Part# 8125-9-45)
Tweezers
0.05-in. hex driver
Materials Required
Pager top housing (STE Part# 31-006-697)
Pager top sticker (STE Part# 311-007-473)
Four 18-8 Stainless Steel socket head screws (STE Part# 92196A059)
Four 18-8 Stainless Steel washers (STE Part# 98370A001)
Isopropyl alcohol
Cotton swab
Originators
Brian Tucker
Jeremiah Prousalis
Originating Organization
PNNL, STE
Approver
Cody Hostick
Safety Concerns
None
Retest Requirements
Final Documentation
Corrective Maintenance Report
Departmental Coordination
Prior to arrival, notify operators concerning expected work and duration.
Date of Origin
Step 1
Main Step
7500 - 7489 - Remove existing battery; Remark:
Step 00
7489 - Remove existing battery
Remove existing battery
11095 - 313 - Power off instrument; Remark:11093
Step 00
313 - Power off instrument
Power off instrument
11093 - Rotate switch to OFF position.
Rotate switch to OFF position.
4369 - 4368 - Remove battery cover; Remark:11198
Step 00
4368 - Remove battery cover
Remove battery cover
11198 - Use a coin screwdriver, a medium #2 slotted screwdriver or a coin. Rotate counte...
Use a coin screwdriver, a medium #2 slotted screwdriver or a coin. Rotate counterclockwise.
11205 - 1816 - Remove battery; Remark:11196
Step 2
Main Step
11195 - 11194 - Remove faulty top housing; Remark:
Step 00
11194 - Remove faulty top housing
Remove faulty top housing
11187 - 11185 - Remove label; Remark:11182
11186 - Caution : Do not mix components or circuit boards between instruments. Some components con...
Type
Caution
Do not mix components or circuit boards between instruments. Some components contain serial number information specific to each instrument. It is recommended to perform this procedure on one instrument at a time to prevent swapping components.
Step 00
11185 - Remove label
Remove label
11182 - Use tweezers or a sharp blade to pry up the label using the speaker holes or ...
Use tweezers or a sharp blade to pry up the label using the speaker holes or the edge. Discard label.
11188 - 11181 - Remove four enclosure screws and washers; Remark:11178
Step 00
11181 - Remove four enclosure screws and washers
Remove four enclosure screws and washers
11178 - Use 0.05-in. hex driver. Retain screws and washers. Washers might be difficult t...
Use 0.05-in. hex driver. Retain screws and washers. Washers might be difficult to dislodge.
11189 - 6177 - Separate top and bottom enclosures; Remark:11176
11177 - Caution : Wires are still connected. Do not strain black and red wires. They can easily br...
Type
Caution
Wires are still connected. Do not strain black and red wires. They can easily break.
Step 00
6177 - Separate top and bottom enclosures
Separate top and bottom enclosures
11190 - 11174 - Disconnect rotary switch board; Remark:11172
11177 - Caution : Wires are still connected. Do not strain black and red wires. They can easily br...
Type
Caution
Wires are still connected. Do not strain black and red wires. They can easily break.
11175 - Caution : Avoid bending or breaking switch pins.
Type
Caution
Avoid bending or breaking switch pins.
Step 00
11174 - Disconnect rotary switch board
Disconnect rotary switch board
11172 - Carefully wiggle rotary switch board to remove it from switch.
Carefully wiggle rotary switch board to remove it from switch.
11191 - 11171 - Separate circuit boards; Remark:11169
Step 00
11171 - Separate circuit boards
Separate circuit boards
11169 - Carefully wiggle boards to unplug the socket that holds boards together.
Carefully wiggle boards to unplug the socket that holds boards together.
11192 - 11168 - Disconnect piezo connector; Remark:11166
Step 00
11168 - Disconnect piezo connector
Disconnect piezo connector
11166 - Retain circuit boards for reinstallation.
Retain circuit boards for reinstallation.
3397 - 3395 - Label faulty component; Remark:3396
Step 00
3395 - Label faulty component
Label faulty component
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 3
Main Step
11162 - 11161 - Install new top housing; Remark:
Step 00
11161 - Install new top housing
Install new top housing
11156 - 11155 - Connect piezo connector; Remark:11153
Step 00
11155 - Connect piezo connector
Connect piezo connector
11153 - Use new top housing.
Use new top housing.
11157 - 11152 - Insert PCBA into top housing; Remark:11149
Step 00
11152 - Insert PCBA into top housing
Insert PCBA into top housing
11150 - Route wires under rotary switch connector. Wires should not be coiled up on piez...
Route wires under rotary switch connector. Wires should not be coiled up on piezo or interfere with assembly screws.
11158 - 11148 - Insert four enclosure screws and washers; Remark:11145
Step 00
11148 - Insert four enclosure screws and washers
Insert four enclosure screws and washers
11146 - Verify screws do not interfere with piezo wires.
Verify screws do not interfere with piezo wires.
11159 - 11143 - Connect PCBAs; Remark:11141
11144 - Caution : Verify the connectors are aligned correctly. Misalignment of this connector is c...
Type
Caution
Verify the connectors are aligned correctly. Misalignment of this connector is common and will cause the instrument to malfunction.
Step 00
11143 - Connect PCBAs
Connect PCBAs
11141 - Carefully line up the pins with the sockets and press firmly.
Carefully line up the pins with the sockets and press firmly.
11160 - 11140 - Connect rotary switch board; Remark:11141
Step 00
11140 - Connect rotary switch board
Connect rotary switch board
11141 - Carefully line up the pins with the sockets and press firmly.
Carefully line up the pins with the sockets and press firmly.
11238 - 11235 - Place top housing on bottom housing; Remark:11233
11236 - Caution : Verify all wires are inside instrument. Verify wires do not interfere ...
Type
Caution
Verify all wires are inside instrument.
Verify wires do not interfere with enclosure screws.
Step 00
11235 - Place top housing on bottom housing
Place top housing on bottom housing
11233 - Route wire to avoid enclosure screws.
Route wire to avoid enclosure screws.
11239 - 11232 - Evenly tighten enclosure screws; Remark:11228
569 - Caution : Do not overtighten screws.
Type
Caution
Do not overtighten screws.
Step 00
11232 - Evenly tighten enclosure screws
Evenly tighten enclosure screws
11228 - Evenly tighten screws until the gasket is lightly compressed. It is recommended ...
Evenly tighten screws until the gasket is lightly compressed. It is recommended to perform this by hand to avoid overtightening.
11231 -
Resim
11240 - 11227 - Verify enclosure screws are tightened correctly; Remark:11225
Step 00
11227 - Verify enclosure screws are tightened correctly
Verify enclosure screws are tightened correctly
11225 - 1 – Not tight enough; gap between gasket and housing 2 – Too tight...
1 – Not tight enough; gap between gasket and housing
2 – Too tight; gasket is bulging
3 – Correctly tightened; no gap, no bulging
Step 4
Main Step
11224 - 11223 - Replace battery; Remark:
Step 00
11223 - Replace battery
Replace battery
11221 - 11220 - Insert battery; Remark:11218
Step 00
11220 - Insert battery
Insert battery
11218 - Insert positive (+) terminal first.
Insert positive (+) terminal first.
11222 - 4354 - Reinstall battery cover; Remark:11215
Step 00
4354 - Reinstall battery cover
Reinstall battery cover
11215 - Use a coin screwdriver, a medium #2 slotted screwdriver or a coin. Rotate clockw...
Use a coin screwdriver, a medium #2 slotted screwdriver or a coin. Rotate clockwise.
Step 5
Main Step
11214 - 11213 - Verify instrument is operational; Remark:
Step 00
11213 - Verify instrument is operational
Verify instrument is operational
11212 - 11211 - Initiate self-test; Remark:11207
Step 00
11211 - Initiate self-test
Initiate self-test
11207 - 1 – Hold down display button. 2 – While holding display button, tu...
1 – Hold down display button.
2 – While holding display button, turn power knob to vibrate mode.
11209 - 3 – Release display button after LED flashes blue
3 – Release display button after LED flashes blue
11255 - 11254 - Observe self-test; Remark:11244
Step 00
11254 - Observe self-test
Observe self-test
11244 - The instrument will go through several routines in rapid succession. L...
The instrument will go through several routines in rapid succession.
LED will rapidly flash red, yellow, green, and blue
11246 - All segments of segmented display will illuminate sequentially.
All segments of segmented display will illuminate sequentially.
11248 - Instrument will beep
Instrument will beep
11250 - Instrument will vibrate
Instrument will vibrate
11252 - Middle LED segment will flash and disappear
Middle LED segment will flash and disappear
11256 - 11243 - Verify successful self-test; Remark:11241
Step 00
11243 - Verify successful self-test
Verify successful self-test
11241 - The self-test is successful if actions were observed. If the middle LED segment ...
The self-test is successful if actions were observed. If the middle LED segment remains illuminated, the self-test was NOT successful.
11272 - 319 - Perform operational test; Remark:11271
Step 00
319 - Perform operational test
Perform operational test
11271 - DET-HHD-STE-TA6-RM01, TA600 Operational Test
DET-HHD-STE-TA6-RM01, TA600 Operational Test
Step 6
Main Step
11270 - 11269 - Complete Assembly; Remark:
Step 00
11269 - Complete Assembly
Complete Assembly
11265 - 313 - Power off instrument; Remark:11093
Step 00
313 - Power off instrument
Power off instrument
11093 - Rotate switch to OFF position.
Rotate switch to OFF position.
11266 - 11073 - Clean top housing; Remark:11264
Step 00
11073 - Clean top housing
Clean top housing
11264 - Use cotton swab with alcohol. Carefully clean top of instrument. This will remov...
Use cotton swab with alcohol. Carefully clean top of instrument. This will remove oils or debris where enclosure label will be applied.
11268 - 11260 - Apply enclosure label; Remark:11258
Step 00
11260 - Apply enclosure label
Apply enclosure label
11258 - Remove label backing. Align label on top housing.
Remove label backing. Align label on top housing.
Step 7
Main Step
322 - 321 - Document maintenance actions; Remark:
Step 00
321 - Document maintenance actions
Document maintenance actions
2869 - 2585 - Document maintenance performed; Remark:2866
Step 00
2585 - Document maintenance performed
Document maintenance performed
2866 - Record observations, times, and results for the maintenance report.
Record observations, times, and results for the maintenance report.
4706 - 4705 - Submit report; Remark:4864
Step 00
4705 - Submit report
Submit report
4864 - As specified by management or contractual obligations.
As specified by management or contractual obligations.
Document Type
Corrective Maintenance Procedure
Percent Complete
100.00
Percent Complete W/Media
100.00