Icom IC-F3023S, IC-F3022T, IC-F3022S, IC-F3021S, IC-F3021T, IC-F3023T Power Supply Circuits

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5-4 POWER SUPPLY CIRCUITS

Voltage from the attached battery pack is routed to whole of the circuit in the transceiver via a switch and regulators.

Drive amplifier (Q702), Power amplifier (Q701), etc.

CPU (IC22),

EEPROM (IC10),

Reset IC (IC8), etc.

LED backlight driver (Q45), LCD driver (IC20),

D/A converter (IC12), etc.

PLL IC (IC2),

VCO’s, etc.

Transmit circuits

Receive circuits

CPU5

+5V

 

Q23

 

S5V

S5V

 

 

 

regurator

 

 

 

 

 

Q24, Q49

 

T5V

T5V

 

 

 

regurator

 

 

 

 

 

Q25

 

R5V

R5V

 

 

 

regurator

 

 

 

 

Power switch

VCC

IC17

CPU5V

regurator

R315

+5V

regurator “PWON”

Q26–Q28

“S5C”

22

8

 

“T5C”

87

CPU (IC22)

“R5C”

88

 

 

 

 

F701

(PA unit )

Battery pack

Voltage line

Control signal

5 - 5

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Contents VHF FM Transceivers Introduction Ordering PartsRepair Notes Table of Contents Section Specifications EURSection Inside Views Main UnitPA Unit Disassembly Instructions Removing the Chassis UnitRemoving the Main Unit Removing the PA UnitOptional Unit Installation UT-108R UT-109R UT-110RAntenna Switching Circuit PA Unit Circuit DescriptionReceiver Circuits RF Circuits Main UnitTransmitter Circuits Microphone Amplifier Circuits Main UnitSquelch Circuits Main Unit Modulation Circuits Main UnitTransmit Amplifiers PA Unit APC Circuit PA UnitOver Current Detection Circuit PA Unit PLL Circuits PLL IC Main UnitPower Supply Circuits Port Allocations CPU IC22Adjustment Procedures Before Starting Software AdjustmentStarting Software Adjustment Connection JIG CablesPC Screen Exsample Frequency Adjustment Transmit Adjustment Receive Adjustment ConvenientParts List Main UnitOrder Description Location Order Description PA Unit 16.3/10.3PA Unit Connect Unit ANT UnitBC-160 Optional product Mechanical Parts and Disassembly AccessoriesChassis Parts ANT UnitMP2 C, MP12 C The shape is depending on the version Semiconductor Information DiodesBoard Layouts Main Unit TOP ViewANT Unit TOP View PA Unit TOP ViewMain Unit Bottom View Connect Unit Bottom ViewPA Unit Bottom View ANT Unit Bottom ViewBlock Diagram Main UnitVoltage Diagrams 28 6#PA Unit Section BC-160Page 32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan

IC-F3022T, IC-F3023T, IC-F3021S, IC-F3021T, IC-F3022S specifications

The Icom IC-F3023S, IC-F3022S, IC-F3021T, IC-F3021S, and IC-F3023T are part of Icom's robust lineup of mobile radios designed for reliable communication in diverse environments. These radios are renowned for their durability, advanced features, and user-friendly operation, making them ideal for organizations in public safety, security, and industrial sectors.

One of the standout features of these models is their compact and lightweight design. These radios are engineered for easy handling and mobility, ensuring that users can carry them throughout their workday without hassle. They are designed with ruggedness in mind, meeting military specifications for durability. This makes them resistant to water and dust, allowing for reliable performance even in harsh weather conditions.

The IC-F3023S and IC-F3022S models are equipped with powerful audio output, ensuring clear sound quality, even in noisy environments. These radios incorporate advanced digital signal processing (DSP) technology, which significantly enhances voice clarity and reduces background noise, making communication crisp and efficient.

For battery efficiency, these models feature a high-capacity lithium-ion battery, which provides long-lasting power for extended operation. With features like battery saver technology, users can maximize the lifespan of their batteries, reducing downtime and operational costs.

One of the key characteristics across these models is their versatility in communication. They support multiple frequency bands and have programmable channels, allowing users to customize their communication preferences according to their operational needs. The IC-F3021T and IC-F3021S variants also support Trunked Operation which facilitates seamless communication across larger teams.

Moreover, these radios support emergency features such as an emergency button that can be programmed for instant alerts, providing an additional layer of safety for users working in high-risk environments. The inclusion of various scanning features facilitates efficient channel monitoring, ensuring that users never miss critical communications.

In summary, the Icom IC-F3023S, IC-F3022S, IC-F3021T, IC-F3021S, and IC-F3023T radios are designed to meet the demands of professional users who require high-performance communication devices. With their rugged build, exceptional audio quality, and advanced features, these radios are invaluable tools in maintaining effective communication in any operational setting. Whether for construction sites, emergency services, or security details, these models offer the reliability and function that professionals need every day.