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Icom IC-F3GS, IC-F3GT service manual 9-2 ETS/CEPT VERSION, Main Unit Top View

Models: IC-F3GS

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9-2 ETS/CEPT VERSION

9-2 ETS/CEPT VERSION

• MAIN UNIT (TOP VIEW)

C64

C63	R89	C294	X3C112	R83C113	R134	C159 Q20	C160 Q19		IC6
					X3			Q18
								Q18
		L13						R135
	C54							R88	C20

C283

C305

A

C255

DS2

C293

R34	R35

C49

R185

C233

R186

IC1

	R151	R264
Q34
C234	C46	C295	R249
	C46

R208

R90	C56	Q10		R244	C116	R82			C119
R90	C56			R244	C116

C290	C51			C303				IC2
C290				C303				IC2
				R253	C115
	C300				C115
	C300		C111
			C111
			R81	R80	Q14		C117			L7
			R81	R79	R84			C24
				R79
R175									Q3
R175					R13				Q3
C211					R13		R12	R11	R10	C23
C211				R15	C26		R12	R11	R10	C23
				R15	C26
				R14		C25

	C120	C122
	R86	C121
	R86	R87
		R87
	R85	C118
	R85	L28
		L28
	C22	C280

	L26	C21
C19	R255	L6
		C15
Q2

C282

	R142
C14	C289
C14	L5

Q1

DS1

C256

DS3

Q25

R204

R205 R155

J6

C50	R30	R31	Q11	R257	C286
			Q11

			C131

C215	R44	R169	R125	C212	R168	IC4
		C148		R98		IC4
		C148

	C213			R107
				R107
			C214		R113
	R170					C128	R112
	R170

	J6					MC1

C301	D3			R16		C217
C301	D3			R177		C217		C124
								C124
	R17				C133	R105	C134	R176	R109
R97		D4		C136		R114		R108
				C136		R114
				C137	R115		C135	R116
				C137	R117		C135	R116
					R117
					D12
	C95		C96
	C95
R67		R66
R67
			D27				D34
			R174				D34
	C299		R174		Q31
					Q31

R93 C243				C17
R93 C243	C75	R251	C179	Q37
	R54		W7	R210	C10
				R210	C10

IC3				R53
				R53
			R52	C73
D11	C92	R64
D11	C92	C93		R65
		C93		R65
	C90	R222	R62	C84

	L18	C85	D10
	R61

	R7	C13
	R9		R5

C251		D33		L32
C251
R162				R3
R161	C252		D32	R3
R161	C252		D32
R163				R2
				R2
				C205

D1

C5

	L15		C52	C4
	L15		D2	C4
			D2
		L22		C2
	R57	L22
	R57			R1
				R1
		D8		C78
				C78
	D9	C81
		C81

C1

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Image 28

Icom IC-F3GS, IC-F3GT service manual 9-2 ETS/CEPT VERSION, Main Unit Top View

Contents

SERVICE MANUAL VHF FM TRANSCEIVERSINTRODUCTION DANGERORDERING PARTS REPAIR NOTESTABLE OF CONTENTS SPECIFICATIONS SECTIONETS 300 EIA/TIAMAIN UNIT TOP VIEW SECTION 2 INSIDE VIEWSBOTTOM VIEW SECTION 3 DISASSEMBLY AND OPTION INSTRUCTIONS 3-1 DISASSEMBLY INSTRUCTIONREMOVING THE CHASSIS PANEL REMOVING THE MAIN UNIT3-2 OPTIONAL UNIT INSTALLATIONS Remove the option coverSECTION 4 CIRCUIT DESCRIPTION 4-1 RECEIVER CIRCUITS4-1-1 ANTENNA SWITCHING CIRCUIT 4-1-2 RF CIRCUIT4-2 TRANSMITTER CIRCUITS 4-1-7 WIDE AND NARROW SWITCHING CIRCUIT4-2-3 DRIVE/POWER AMPLIFIER CIRCUITS 4-1-5 AF CIRCUIT4-3 PLL CIRCUIT 4-4 POWER SUPPLY CIRCUITS VOLTAGE LINEPLL circuit LINE4-5 PORT ALLOCATIONS 4-5-1 CPU IC8CPU IC8-continued 4-5-2 OUTPUT EXPANDER IC IC10SECTION 5 ADJUSTMENT PROCEDURES 5-1 PREPARATIONSTARTING SOFTWARE ADJUSTMENT ADJUSTMENT SOFTWARE INSTALLATIONRF Power High Screen display exampe¥ JIG cable CS-F3G ADJ Rev.2.0Top view ¥ DC power cable connectionsConnection 5-2 PLL ADJUSTMENT ADJUSTMENTADJUSTMENT CONDITIONS ADJUSTMENT5-3 SOFTWARE ADJUSTMENT ADJUSTMENTADJUSTMENT CONDITION MEASUREMENTSOFTWARE ADJUSTMENT - continued ADJUSTMENTADJUSTMENT CONDITION MEASUREMENTSECTION 6 PARTS LIST MAIN UNITMAIN UNIT ORDERMAIN UNIT MAIN UNITORDER DESCRIPTIONMAIN UNIT MAIN UNITORDER DESCRIPTIONMAIN UNIT MAIN UNITORDER DESCRIPTIONMAIN UNIT MAIN UNITCHASSIS UNIT ORDERSECTION 7 MECHANICAL PARTS AND DISASSEMBLY ACCESSORIESCHASSIS PARTS MAIN UNITIC-F3GS parts UNIT abbreviation C CHASSIS PARTS, M MAIN UNITTRANSISTOR AND FET’S SECTION 8 SEMI-CONDUCTOR INFORMATIONDIODES 9-1 GENERAL AND EIA/TIA VERSIONS EXCEPT W/N-TYPE SECTION 9 BOARD LAYOUTSMAIN UNIT TOP VIEW R143 OPTIONB5386H ICOM9-2 ETS/CEPT VERSION MAIN UNIT TOP VIEWB5571C R143ICOM to the OPTIONAL unitVHF W/N DS1 C2559-3 W/N-TYPE MAIN UNIT TOP VIEWB5687A BUSYOPTION ICOM10-1 PARTS LIST 10-2 DISASSEMBLY INFORMATIONSECTION 10 BC-137 OPTIONAL DESKTOP CHARGER INFORMASION MAIN UNIT10-3 VOLTAGE DIAGRAM 10-4 BOARD LAYOUT2SB1201 S RN2404SECTION 11 BLOCK DIAGRAM W/N-typeETS/CEPT version W-type of GENSECTION 12 VOLTAGE DIAGRAM A L-band of ETS/CEPT version Page VOLTAGE DIAGRAM SECTIONP81/AN1 P82/AN2 P83/AN3 P84/AN4 P85/AN5 P86/AN6 P87/AN7Page S-13713IZ-C1V 1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan2000 Icom Inc UHF FM TRANSCEIVERS SERVICE MANUALINTRODUCTION DANGERORDERING PARTS REPAIR NOTESTABLE OF CONTENTS SPECIFICATIONS SECTIONETS 300 EIA/TIAAntenna switcing circuit D2, D8 MA77 Power amplifier Q1 2SK2974 APC SECTION 2 INSIDE VIEWSMAIN UNIT TOP VIEW BOTTOM VIEWSECTION 3 DISASSEMBLY AND OPTION INSTRUCTIONS 3-1 DISASSEMBLY INSTRUCTIONREMOVING THE CHASSIS PANEL REMOVING THE MAIN UNIT1 Remove the option cover 3-2 OPTIONAL UNIT INSTALLATIONS3 Replace the option cover to the chassis-hole 4-1-1 ANTENNA SWITCHING CIRCUIT SECTION 4 CIRCUIT DESCRIPTION4-1 RECEIVER CIRCUITS 4-1-2 RF CIRCUIT4-1-7 WIDE AND NARROW SWITCHING CIRCUIT 4-2-3 DRIVE/POWER AMPLIFIER CIRCUITS4-2 TRANSMITTER CIRCUITS 4-1-5 AF CIRCUIT4-4 POWER SUPPLY CIRCUITS VOLTAGE LINE 4-3 PLL CIRCUITPLL CIRCUIT LINE4-5 PORT ALLOCATIONS 4-5-1 CPU IC8CPU IC8-continued 4-5-2 OUTPUT EXPANDER IC IC10SECTION 5 ADJUSTMENT PROCEDURES STARTING SOFTWARE ADJUSTMENTADJUSTMENT SOFTWARE INSTALLATION 5-1 PREPARATIONJIG CABLE SCREEN DISPLAY EXAMPLESQL Lev DC POWER CABLE CONNECTIONS Top viewCONNECTION computer5-2 PLL ADJUSTMENT ADJUSTMENTADJUSTMENT CONDITIONS ADJUSTMENT5-3 SOFTWARE ADJUSTMENT ADJUSTMENTADJUSTMENT CONDITION MEASUREMENTSOFTWARE ADJUSTMENT - continued ADJUSTMENTADJUSTMENT CONDITION MEASUREMENTSECTION 6 PARTS LIST MAIN UNITMAIN UNIT ORDERMAIN UNIT MAIN UNITORDER DESCRIPTIONMAIN UNIT MAIN UNITORDER DESCRIPTIONMAIN UNIT MAIN UNITORDER DESCRIPTIONMAIN UNIT MAIN UNITORDER DESCRIPTIONORDER MAIN UNITDESCRIPTION SECTION 7 MECHANICAL PARTS AND DISASSEMBLY ACCESSORIESCHASSIS PARTS MAIN UNITIC-F4GS parts EP2 M MAIN unitTRANSISTOR AND FET’S SECTION 8 SEMI-CONDUCTOR INFORMATIONDIODES 9-1 LOW BAND SECTION 9 BOARD LAYOUTSU H F MAIN UNIT TOP VIEWR143 U H F 9-2 440-470 MHz BAND EXCEPT W/N-TYPEMAIN UNIT TOP VIEW ICOM 9-3 470-500 MHz AND HIGH BANDS MAIN UNIT TOP VIEWJ5 to the OPTIONAL unit9-4 W/N-TYPE MAIN UNIT TOP VIEWR143 10-1 PARTS LIST 10-2 DISASSEMBLY INFORMATIONSECTION 10 BC-137 OPTIONAL DESKTOP CHARGER INFORMASION MAIN UNIT10-3 VOLTAGE DIAGRAM 10-4 BOARD LAYOUTSECTION 11 BLOCK DIAGRAM W/N-typeW-type of GEN N-typeVOLTAGE DIAGRAM SECTIONTx 2.19 Tx 4.8447 P 47 P OTHER VOLTAGE DIAGRAM SECTIONCPU5 DTMF MTONE CPU5 BDET PTT CTCIN CPU5Page S-13713IZ-C1U 1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan2000 Icom Inc