Icom IC-4008MKII service manual FI3, Bottom View

Page 26

BOTTOM VIEW

X1

C63

C15

C69

C80

C73

C79

 

 

C74

R51

 

R52

C75

R56

 

 

 

R88

C42

R53

R54

 

 

 

C100

R59

C83

 

R208

 

 

C16

L207

D2

D1

 

C211

 

R6

 

L105

 

 

 

 

R211

R212

C35

C102

 

 

 

R210

C21

Q8

R37

L21

 

 

 

 

 

 

IC2

C78

 

 

 

C76

R57

 

 

R55

 

 

R61

X2

 

 

 

L19

C45

 

C1

C77

C2

R1

W8

R3

R2

FI2

Q1

 

 

C55

C57

 

L14

 

 

R35

 

C64

 

 

Q7

C84

Q12

R36C60

R33

FI3

R50

FI1

 

C56

 

 

R54

R34

 

 

 

 

 

 

C52

 

C50

 

 

 

 

R31

 

D5

 

 

 

 

Q6

L13

C51

 

C53

 

 

L12

C88

D4

R30

R29

C20C85

L11

R206

R301

 

R207

 

C32

C205

R16

 

 

Q3

C6

L3

R25

 

L4

C7

D102

 

 

R75

R83

R76

R70

C5

R72

 

 

 

 

 

 

 

R7

L206

 

Q16

C93

 

 

 

 

D101

C210

C209

R73

 

C95

R74

C92

C91

J1

9 - 6

Image 26
Contents UHF FM Transceiver LPD FM Transceiver Repair Notes IntroductionOrdering Parts Table of Contents Section Specifications ITA, ITA-1 CSA, CSA-1Channel Frequency List Ctcss Frequency ListRF Unit Inside ViewsMain Unit Removing the Main Unit Disasembly InstructionsRemoving the Rear Panel Removing the RF UnitReceiver Circuits Antenna Switching Circuit RF UnitCircuit Description RF Circuit RF UnitTransmitter Circuits PLL Circuits RF UnitCPU Main unit IC1 Power Supply Circuits Voltage LinePort Allocations Preparation Section Adjustment ProceduresEntering the Adjustment Mode Required Test EquipmentAdjustment DeviationR50 C63R206 TestSection Parts List Order DescriptionRF Board Coil Eljre 18NG-F C211 4030006860 Cabinet Parts Chassis Parts Mechanical Parts and DisassemblyAccessories Unit abbreviation C Chassis PARTS, RF RF UNIT, M Main Unit Diodes SEMI-CONDUCTOR InformationTransistor and FET’S TOP View IC-4008A Board LayoutsMain Unit R58 Bottom View IC-4008AC55 C17 R23 C18 C52 PSC Batt MOD VOL GND RF Unit TOP ViewFI3 Bottom ViewBlock Diagram IC1Voltage Diagram DTA144EURF Unit 16, Kamihigashi, Hirano-ku, Osaka 547-0002, Japan 16, Kamihigashi, Hirano-ku, Osaka, 547-0002, Japan