Motorola Portable Radio Ep450 Basic Hkln4215a Manual
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December 3, 2003HKLN4215A 6-16Display Model Disassembly and Re-assembly: Mechanical View and Parts List 6.5 Mechanical View and Parts List 6.5.1 EP450 Display Exploded View and Parts List Figure 6-22. EP450 Display Radio Exploded View 1 2829 3132 33 2 3 4 5 6 78 9 1011 12 13 14 15 16 17 18 19 2 0 21 22 23 24 25 26 27 30
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Mechanical View and Parts List6-17 ItemMotorola Part NumberDescription 1See Section 6Antenna 2 3680530Z02 Knob, Frequency 31386440Z01 1386440Z02Escutcheon, Top; 4 Ch. Escutcheon, Top; 16 Ch. 4 5886627Z01 Antenna Adaptor/Seal (Optional) 51586391Z03Housing, Full, with Lens 6 3586621Z01 Speaker, Felt 73886489Z01PTT, Rubber 8 4586439Z01 PTT, Plastic 95085738Z08Speaker 10 4286620Z01 Retainer Speaker 113586621Z02Felt, Microphone 12 0780608V01 Boot, Microphone 135085880L01Microphone 14 5104949J16 Display, LCD...
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December 3, 2003HKLN4215A Notes: 6-18Display Model Disassembly and Re-assembly: Mechanical View and Parts List
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Chapter 7 Non-Display Model Disassembly and Re-assembly 7.1 Introduction This section provides details about the following: Preventive maintenance (inspection and cleaning) Safe handling of CMOS and LDMOS devices Disassembly and re-assembly of the radio Repair procedures and techniques 7.2 Preventive Maintenance The radios do not require a scheduled preventive maintenance program; however, periodic visual inspection and cleaning is recommended. 7.2.1 Inspection Check that the external surfaces...
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December 3, 2003HKLN4215A 7-2Non-Display Model Disassembly and Re-assembly: Safe Handling of CMOS and LDMOS Devices Cleaning Internal Circuit Boards and Components Isopropyl alcohol (70%) may be applied with a stiff, non-metallic, short-bristled brush to dislodge embedded or caked materials located in hard-to-reach areas. The brush stroke should direct the dislodged material out and away from the inside of the radio. Make sure that controls or tunable components are not soaked with alcohol. Do not use...
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HKLN4215ADecember 3, 2003 Non-Display Model Disassembly and Re-assembly: Disassembling and Re-assembling the Radio — General 7-3 7.4 Disassembling and Re-assembling the Radio — General Since these radios may be disassembled and re-assembled with the use of only four (board to casting) screws, it is important to pay particular attention to the snaps and tabs, and how parts align with each other. The following tools are required for disassembling the radio (see 3.2 for a list of service aids): knob...
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December 3, 2003HKLN4215A 7-4Non-Display Model Disassembly and Re-assembly: Disassembling and Re-assembling the Radio — General 3.Remove the antenna. 4.Pry off the volume and channel selector knobs from their shafts using the knob removal/chassis opener tool (Motorola part # 6686533Z01). (Figure 7-2) 5.Separate the chassis from the front housing assembly by using the knob remover/chassis opener too. Place the broad side of the opener into the slots located at the base of the radio (Figure 7-3). Press...
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HKLN4215ADecember 3, 2003 Non-Display Model Disassembly and Re-assembly: Disassembling and Re-assembling the Radio — General 7-5 6.Pull the chassis assembly out of the front cover only until the volume and channel selectors shaft just clear the top of the case. (Figure 7-4). Rotate the chassis counterclockwise out of the housing and position next to the housing. Take care not to damage the speaker and microphone wires that are still connected to the chassis (Figure 7-4). 7.Unplug the speaker wire...
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December 3, 2003HKLN4215A 7-6Non-Display Model Disassembly and Re-assembly: Disassembling and Re-assembling the Radio — General 7.4.1.3 Speaker and Microphone Disassembly 1.Remove the screw from the speaker retainer using a T6 Torx screwdriver (Figure 7-6). 2.Lift the retainer off the speaker, sliding end of retainer out of corner slot on the housing. 3.Lift the speaker out from the front housing. 4.Carefully lift microphone assembly out of housing. 7.4.1.4 PTT Disassembly 1.If required, the PTT...
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HKLN4215ADecember 3, 2003 Non-Display Model Disassembly and Re-assembly: Disassembling and Re-assembling the Radio — General 7-7 7.4.2 Chassis Disassembly 1.Remove the O-ring. 2.Use a Torx™ screwdriver with a T6 bit to remove the four screws (Figure 7-8) holding the main board to the chassis. 3.The audio jack shroud can be removed from the main board. 4.Lift the main board from the chassis. 5.Remove the battery contact seal.Figure 7-7. PTT Removal CAUTION: Refer to the CMOS CAUTION paragraph (7.3)...