Icom IC-F3GS service manual SEMI-CONDUCTOR Information, Transistor and FET’S, Diodes

Page 24

SECTION 8 SEMI-CONDUCTOR INFORMATION

•TRANSISTOR AND FET’S

2SA1577 Q

2SC4116 GR

2SC4215 O

2SC5085 Y

2SK1069 4

(Symbol: HQ)

(Symbol: LG)

(Symbol: QO)

(Symbol: MCY)

(Symbol: FJ4)

B

C

B

C

B

C

B

C

S

E

E

E

E

D

G

2SK2973

2SK2974

3SK239 A

3SK293

DTA144 EU

(Symbol: K1)

(Symbol: K2974)

(Symbol: XR)

(Symbol: UF)

(Symbol: 16)

G

D

D

G2

D

G2

B

S

S

S

C

D

G

S

G1

S

G1

E

(top view)

DTC144 EU	DTC144 TU	UN911 H		XP6501 AB
(Symbol: 26)	(Symbol: 06)	(Symbol: 6P)		(Symbol: 5N)
B	B	B		E1	C1
C		C	C	E2	B1
E	E	E		B2	C2

•DIODES

1SV288

DAN202K

HVC350B

HVU350

MA2S077

(Symbol: TJ)

(Symbol: N)

(Symbol: BO)

(Symbol: 4)

(Symbol: S)

pink

A

A1

C

C

A2

MA77	MA8030 H	RB706F-40
(Symbol: 4B)	(Symbol: 3^0)	(Symbol: 3J)

A

C

8 - 1

Image 24

Contents VHF FM Transceivers Introduction Ordering PartsRepair Notes Table of Contents Section Specifications ‘ General‘ Transmitter ‘ ReceiverInside Views Main Unit TOP ViewBottom View Disassembly and Option Instructions Disassembly InstructionRemoving the Chassis Panel Removing the Main UnitOptional Unit Installations SpongeCircuit Description Receiver CircuitsTransmitter Circuits Power Supply Circuits Voltage Line PLL CircuitVCC OPTPort Allocations Output Expander IC IC10Adjustment Procedures PreparationSPE GNDClone Software Adjustment DC Power Supply PLL AdjustmentPLL Adjustment PLL LockMain VoltageSoftware Adjustment Sensitivity SquelchLevel SQLParts List Main UnitVariable Ceramic JB 1C Mechanical Parts and Disassembly AccessoriesChassis Parts EP1 EP2 MP1 MP2IC-F3GS parts SEMI-CONDUCTOR Information Transistor and FET’SDiodes Board Layouts Main UnitFI2 IC8IC5 CirqBlLOCK Diagram Voltage Diagram IC3CIC1 DTA144EU Section Voltage Diagram Avref Vtref Toned Tonem Avcc16, Kamihigashi, Hirano-ku, Osaka 547-0002, Japan 16, Kamihigashi, Hirano-ku, Osaka, 547-0002, Japan

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