Tait TP3000 User manual

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Technical Note TN-2776h-AN
TP3000 Front Cover Change Guide
23 March 2023
This Application Note applies to TP3000 portable radio platform.
Contents
Preparation..................................................................................................................................... 2
Observe ESD Precautions ...................................................................................................................................... 2
Tools, Equipment, and Consumables.................................................................................................................... 3
Services and Spares..............................................................................................................................................................3
Disassembly and Reassembly..................................................................................................... 3
Disassembling the front cover ................................................................................................................................ 3
Attaching Conductive Foam.................................................................................................................................... 6
Assembling the front cover...................................................................................................................................... 8
Applying Torque......................................................................................................................................................................8
Pressure Testing..................................................................................................................................................... 10
Pressure Test Equipment.................................................................................................................................................... 10
Operation...............................................................................................................................................................................11
Programming the radio............................................................................................................... 13
Programming the radio model information.......................................................................................................... 13
Programming the radio datafile..........................................................................................................................................14
Testing the radio...................................................................................................................................................................14
Functional variations between radio models........................................................................... 15
Features of each keypad option........................................................................................................................... 15
Publication Information............................................................................................................... 16

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Preparation
Observe ESD Precautions
This equipment contains devices that are susceptible to damage from electrostatic discharge
(ESD). Handle every device carefully and in strict accordance with the procedures defined in the
databook provided by the manufacturer.
For information on anti-static precautions and the dangers of electrostatic discharge, refer to
standards such as ANSI/ESD S20.20-1999 and BS EN100015-4 1994 or go to the Electrostatic
Discharge Association website www.esda.org.
Tait recommends that you buy an anti-static bench kit from a reputable manufacturer. The
bench must have:
•A dissipative rubber bench mat
•A conductive wrist strap
•A connection to ground
Figure 1.1 Typical anti-static bench setup
Also follow strict anti-static measures when carrying, storing, or shipping a front cover.

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Tools, Equipment, and Consumables
Use the kits and tools described here when swapping out a TP3300 radio front cover.
Services and Spares
Product code
Item
T03-00354-AAAA
Screws, washers and gasket sets (sufficient for 10 radios)
T03-00355-AAAA
Tait logo labels (100 pcs)
T03-00355-AAAB
Harris logo labels (100 pcs)
T03-00361-AAAA
TP3000 programming cable
T03-00360-AAAA
Radio pressure test kit
(spare screws, washers and gaskets included)
T03-00354-BAAA
Conductive Foam Pads (100 pcs)
An adjustable-torque Torx driver with T8 tip (1/4inch x 25 L8) set to 0.3 N•m (2.5 lbf•in) is
required to reassemble the radio.
Disassembly and Reassembly
Warning! TP3000 radios and accessories are not user-serviceable, any unauthorized repair or
substitution of parts invalidates the product warranty. To have a TP3000 radio serviced, return it
to your regional Tait office.
The radio meets published specifications for protection against entry by water and dust. It
satisfies stringent regulatory requirements before it leaves the factory. To maintain this
characteristic level of water and dust resistance (its ‘IP ratings’) after reassembly, additional
tests are required.
Do not disassemble the radio until you have read “Pressure Testing” on page 8.
Disassembling the front cover
Follow the instructions provided for the proper removal and installation of each part.
1. Turn off the radio
2. Disconnect the radio from all accessories, all test equipment, and from the power supply.
Warning! LI-ION BATTERY! This radio uses a Lithium-ion battery, if the battery is
damaged or handled in an unsafe manner, it can cause personal injury and/or damage to
property. Read the important safety information in the Li-ion Battery Safety Information
document MPC-00006-xx, available from the Tait Support website.
3. If you need to remove a belt clip from the battery:

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Use a Philips #2 screwdriver to remove the two screws that secure the belt clip to the back
panel.
4. Remove the battery by pressing the ‘PUSH’ button and raise the bottom of the battery
cleanly away from the radio.
5. Optional. Remove the antenna by turning it counter-clockwise. It is easier to remove the
front cover if the antenna is removed.
6. Inspect the chassis and the chassis labels. Make sure that the vent hole in the chassis is
clean and free of obstruction.

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7. Use a Torx T8 driver to remove the six screws that secure the chassis to the front panel.
An O-ring accompanies each screw.
8. Flip the radio over and peel away the logo label to reveal the two screws hidden
underneath.
9. Use a Torx T8 driver to remove the two screws that secure the top of the front panel to the
chassis. An O-ring accompanies each screw.
10. Without forcing the inter-board FPC cable that attaches the front cover to the RF board
connector(s), lift the front cover from the chassis.
The RF board remains attached to the chassis.

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11. Use a pair of tweezers to loosen, but not fully remove, the connector that locks the FPC
cable to the RF board. Work the connector loose by gently lifting first the one side of the
connector then the other.
When disconnecting an FPC cable from a board, do not apply excessive pressure to the
connector. If you do, the connector could break off the board and you will have to order
and install a new connector FPC.
Conductive Foam
If TP3300 radios built prior to Serial Number LC1850xxxx (2018 week 50) are being updated to
4-Key or 16-Key models three conductive foam pads may be fitted to the RF PCBoard if
desired.
Full details on the production improvements in fitting the conductive foam pads are listed in
TN-2838b-AN but this modification is not mandatory - it provides minor improvements to
transmit noise and to receive sensitivity when menu keys are pressed during a call.
Part Number T03-00354-BAAA contains 100 conductive foam pads. They are not fitted or
required on the 0-Key models and therefore if converting from a 0-Key to a 4-Key or 16-Key
model the three foam pads may be fitted as described below.
To fit the conductive foam pads:
Using a pair of tweezers place the foam pads, adhesive side down to the three grounding pads
shown below marked in red:

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New conductive foam pads or replenishments can be ordered through the local Tait office.
The T03-00354-BAAA - Conductive Foam Kit contains 100 foam pads.
Conductive foam pads are also included in the T03-00354-AAAA - Sealing Spares Kit.
Notes:
•A 0-key TP3300 radio does not need conductive foam pads fitted
•Conductive foam pads are not included in any 4-Key or 16-Key front cover spare kit
•A TP3300 radio supplied ex-factory as 4-Key or 16-Key types will have conductive foam
pads already fitted in place from Serial Number LC1850xxxx (2018 week 50 or later).
•All TP3300 radios from Serial Number LC1902xxxx (2019 week 2or later) will have SMD
conductive foam pads fitted ex-factory.
No re-work is required during front cover change for these.
•When converting from a 4-Key or 16-Key to a 0-Key model, the three conductive foam pads
fitted by an end user (but not by the manufacturer) must be removed from the PCB before
re-attaching the front cover.
This is to avoid risk of short circuit if the pads become detached from PCB during future use
of the radio. Foam pads fitted by the manufacturer (LC1902xxxx or later) are of surface
mount type, so do not require removal.
•Replace any conductive foam pads where the adhesive is no longer effective, or when the
foam is damaged

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Assembling the front cover
Driver
All screws used in the radio require a Torx T8 (1/4inch x 25 L8) driver.
Applying Torque
Secure each screw or nut to exactly 0.3 N•m (2.5 lbf.in). Do not under or over-torque.
1. Make sure the replacing front cover has a rubber gasket attached; Tait recommend
replacing the gasket if the front cover is reused. Follow the instructions provided to install
the new front cover.
Note:
oAll O-rings must be replaced in order to maintain the characteristic level of water and
dust resistance (its ‘IP ratings’) after reassembly.
oFor Series 1 radios (last serial number LC205130120), we recommended removing the
foam on the FPC between the front panel and the radio’s RF board, and use masking
tape to cover the metal plate:

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2. Align the front cover to the chassis by using the edge on the right-hand-side as a guide; use
a pair of tweezers or your fingertip to press the speaker FPC connector socket, and the
display FPC connector socket, to their corresponding plugs on the RF board.
The plug clicks when it is fully connected.
3. Attach a new O-ring to each of the two screws and use the Torx T8 driver to fasten (torque
to 0.3 N•m or 2 lbf.in) the two screws that secure the top of the front panel to the RF board.
4. Attach a new log label to the slot.
5. Flip the radio over.

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6. Attach a new O-ring to each of the six screws and use the Torx T8
driver to position the six screws in the back of the chassis.
7. Working in a star sequence (as shown right) to fasten the screws
that secure the chassis to the front cover.
Torque to 0.3 N•m (2.5 lbf.in).
8. Screw the antenna clockwise into the antenna ring, turning the
antenna clockwise. Make sure that the antenna is firmly seated.
For users in Canada only:
Applies to: TP3300-B1 or TP3350-B1 Series 2 radio (serial numbers LC214530001 or
later)
If the panel change includes a change of keypad e.g., from 0-Key to 4-Key, a new HVIN
label is required. Please contact your local Tait dealer for this additional label.
Model
New Keypad
HVIN (label)
Example
TP3300-B1
4-Key
TPEB1F04
16-Key
TPEB1F16
TP3350-B1
4-Key
TPEB1G04
16-Key
TPEB1G16
Pressure Testing
If IP ratings are important to the customer, pressure test the radio before opening the radio and
again after reassembling the radio. Complete tasks in the following order:
Pressure Test Equipment
If pressure testing is necessary, make sure that you are equipped to perform the testing or can
arrange to send the radio for testing at a regional Tait office.