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General| Brand | Motorola |
|---|---|
| Model | SP50 |
| Category | Portable Radio |
| Language | English |
Lists VHF SP50 models with their specifications and part numbers.
Lists UHF SP50 models with their specifications and part numbers.
Covers general characteristics like frequency, power, and dimensions.
Details receiver performance metrics like sensitivity and selectivity.
Outlines transmitter performance metrics like RF output and audio response.
Lists test equipment needed for SP50 service and troubleshooting.
Introduces the process of taking apart and putting back together the SP50 radio.
Step-by-step guide to disassembling the SP50 radio.
Instructions on how to safely remove the battery from the SP50 radio.
Detailed steps for removing the back cover of the SP50 radio.
Procedure for safely removing the main circuit board from the SP50.
Instructions on how to disconnect the flex cable from the main board.
Steps for carefully removing the heatsink from the SP50 radio.
Guide to removing the speaker assembly from the SP50 radio.
Step-by-step guide to reassembling the SP50 radio.
Instructions for correctly reinstalling the speaker assembly.
Steps for properly reinstalling the heatsink onto the main board.
Guide to reconnecting the flex cable to the main board.
Instructions for reinstalling the main board into the SP50 housing.
Detailed steps for reinstalling the back cover onto the SP50 radio.
Final steps for reassembling the radio's external components.
Introduces the SP50's components and their functions.
Details the Motorola 68HC11E9 microcontroller used in the SP50.
Describes the three main blocks of the SP50 radio receiver.
High-level overview of the SP50 radio's internal components and data flow.
Lists the troubleshooting flow charts available for SP50 radios.
Guide for diagnosing and resolving receiver issues in the SP50.
Guide for diagnosing and resolving transmitter issues in the SP50.
Guide for diagnosing and resolving synthesizer issues in the SP50.
Guide for diagnosing and resolving microcontroller issues in the SP50.
Guide for diagnosing and resolving VCO issues in the SP50.
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