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Icom IC-W2A Service Manual page 3

Dual band fm transceiver
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TABLE OF CONTENTS
SECTION
1
SPECIFICATIONS
1—1
SECTION
2
INSIDE
VIEWS
2-1-2
2-1
LOGIC
UNIT
2—1
2-2
VHFRFUNIT
2—2
2-
3
UHFRFUNIT
2—2
SECTION
3
CIRCUIT
DESCRIPTION
3-1-5
3-
1
VHF RECEIVER
CIRCUITS
3—1
3-2
UHF RECEIVER
CIRCUITS
3—2
3-3
VHF TRANSMITTER
CIRCUITS
3—2
3-4
UHF TRANSMITTER
CIRCUITS
3—3
3-5
PLL CIRCUITS
3—3
3-
6
OTHER
CIRCUITS
3—4
SECTION
4
ADJUSTMENT PROCEDURES
4-1-6
4-
1
PREPARATION BEFORE
SERVICING
4—1
4-2
PLL
ADJUSTMENT
4—2
4-3
RECEIVER
CIRCUIT
4—2
4-
4
TRANSMITTER ADJUSTMENT
4—4,6
SECTION
5
MECHANICAL PARTS
AND
DISASSEMBLY
5—1,2
5-
1
FRONT PARTS
5—1
5-2
CHASSIS PARTS
5—2
5-3
ACCESSORIES
5—2
SECTION
6
PARTS
LIST
6—1-10
SECTION
7
BOARD
LAYOUT
7-1-11
7-1
PTTUNIT
7—1
7-2
KEY
UNIT
7—1
7-3
AFUNIT
7—2
7-4
JACK
UNIT
7—2
7-5
CONNECTOR
UNIT
7—3
7-6
PRT
UNIT
7—3
7-7
LOGIC
UNIT
7—4
7-8
VHFRFUNIT
7—6
7-9
UHFRFUNIT
7—8
7-10
VRFAUNIT
7—10
7-11
VRFBUNIT
7—10
7-12
URFAUNIT
7—10
7-13
URFBUNIT
7—10
7-14
AFFILUNIT
7—11
7-
15
UVCOUNIT
7—11
SECTION
8
OPTIONAL
UNIT
8—1
8-
1
UT-63
TONE SQUELCH
UNIT
8—1
SECTION
9
VOLTAGE DIAGRAM
9—1
~3
SECTION
10
BLOCK DIAGRAM
10—1

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