Icom IC-F3023S Disassembly Instructions, Removing the Chassis Unit, Removing the Main Unit

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SECTION 3 DISASSEMBLY INSTRUCTIONS

1 REMOVING THE CHASSIS UNIT

qUnscrew ANT nut A, and remove knob B.

wUnscrew 2 screws C, and remove the jack panel.

eUnscrew 2 screws D, and unplug the connector E from the chassis unit.

rTake off the chassis unit in the direction of the arrow from the front panel.

eUnscrew 6 screws J. r Remove the side plate I.

t Unsolder 8 points K, and remove the shield cover.

y Unsolder 8 points L, and take off the MAIN UNIT in the direction of the arrow.

 

 

 

CHASSIS UNIT

Shied cover

 

 

 

K

 

A

 

D

 

 

 

 

 

 

 

B

 

 

E

J

 

 

 

K

 

 

 

J

I

 

 

 

 

 

 

 

L × 8

MAIN UNIT

 

 

 

 

J

 

C

 

 

 

 

 

Jack panel

Front panel

 

 

 

 

 

2 REMOVING THE MAIN UNIT

qRemove the main seal F.

wUnscrew VR nut G, and remove the top plate H.

F

G

H

(Continued to right above)

CHASSIS UNIT

3 REMOVING THE PA UNIT

qUnscrew 3 screws M.

wUnsolder 4 points N, and take off the PA UNIT in the direction of the arrow.

M

N

N

PA UNIT

3 - 1

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Contents VHF FM Transceivers Introduction Ordering PartsRepair Notes Table of Contents Section Specifications EURSection Inside Views Main UnitPA Unit Removing the Main Unit Disassembly InstructionsRemoving the Chassis Unit Removing the PA UnitOptional Unit Installation UT-108R UT-109R UT-110RReceiver Circuits Antenna Switching Circuit PA UnitCircuit Description RF Circuits Main UnitSquelch Circuits Main Unit Transmitter CircuitsMicrophone Amplifier 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 Chassis Parts Mechanical Parts and DisassemblyAccessories ANT UnitMP2 C, MP12 C The shape is depending on the version Semiconductor Information DiodesANT Unit TOP View Board LayoutsMain Unit TOP View PA Unit TOP ViewPA Unit Bottom View Main Unit Bottom ViewConnect 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