Non-Display Model Disassembly and Re-assembly:Disassembling and Re-assembling the Radio — General

7-9

 

 

.

Note: Make sure the speaker and microphone wires are routed tightly between the speaker basket and the housing post

6.Insert one end of the speaker retainer into the slot in the front housing (See Figure 7-11)..

Speaker Retainer

Speaker Tab

Speaker

Tab Opening

Front Housing Slot

Figure 7-11. Speaker Re-assembly

Note: When fastening the speaker retainer screw, make sure the wires are out of the way to pre- vent pinching by the retainer.

7.Install the retainer screw using a T6 Torx screwdriver. Torque to 2.3 - 2.5 lb/in.

7.4.3.3Chassis Assembly/Re-assembly

1.Replace the battery contact seal (if necessary) surrounding the battery contact (Figure 7-12).

2.Remove the old Interface Pad from the chassis by scraping off the pad and adhesive with a straight razor. Use rubbing alcohol and a cloth to completely remove the adhesive from the chas- sis surface. With the chassis clean and dry, add a new Interface Pad to the chassis.

3.Place the main circuit board straight down on top of the chassis with the frequency and volume switches facing down.

Note: Be sure the battery contact seal protrudes through the chassis and is not pinched under the chassis.

4.Use the T6 Torx screwdriver to fasten the screws holding the main board to the chassis. Tighten to 3.7 - 3.9 in/lb.

5.Replace the O-ring by positioning it in the top groove by the volume/frequency switches. Stretch the O-ring to place it into the retaining groove at the bottom end of the chassis.

6.Check that the O-ring is not twisted and is being held by the top and bottom chassis groves.

7.Replace the audio jack shroud.

HKLN4215A

December 3, 2003

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Motorola EP450 service manual Speaker Re-assembly

EP450 specifications

The Motorola EP450 is a robust and reliable two-way radio that has made a significant impact in the world of professional communications. Known for its solid construction and exceptional performance, the EP450 is a popular choice among various industries, including security, transportation, and event management.

One of the standout features of the Motorola EP450 is its impressive audio quality. Equipped with advanced audio processing technologies, the radio offers clear and crisp sound, ensuring effective communication even in noisy environments. This feature is particularly beneficial for users who work in fields where situational awareness and timely communication are crucial.

The EP450 operates on both VHF and UHF frequency bands, making it versatile for various communication needs. With 16 channels and a wide frequency range, users can easily switch between channels to avoid interference and ensure secure communications. Additionally, the radio offers a programmable feature, allowing users to customize button functions and settings, which enhances the overall user experience.

The battery life of the EP450 is another notable characteristic. It comes powered with a long-lasting rechargeable battery that provides extended usage on a single charge. This ensures that users can rely on the device throughout their shifts without concerns about running out of power. Furthermore, the EP450 features a battery save mode that helps conserve energy when the radio is not in use.

In terms of design, the Motorola EP450 is built to withstand tough environments. Its rugged housing is dustproof and can withstand exposure to water, making it suitable for outdoor use. Additionally, the radio's user-friendly interface includes a large display and oversized buttons, allowing users to operate it easily even with gloves or in challenging conditions.

Furthermore, the EP450 supports various accessories, such as headsets and external microphones, enhancing usability and flexibility in various operational scenarios. This adaptability allows users to customize their communication solutions based on specific needs.

In conclusion, the Motorola EP450 stands out for its superior audio quality, versatile frequency operation, long-lasting battery life, and rugged design. These features make it an indispensable tool for professionals who require reliable communication in demanding environments, proving its value across a multitude of industries.