TABLE OF CONTENTS
SECTION 1
SPECIFICATIONS
SECTION 2
INSIDE
VIEWS
SECTION
3 CIRCUIT
DESCRIPTION
3-1 LINEAR
AMPLIFIER
CIRCUITS............................................................................................................ 3-1
3-2 ANTENNA TUNER
CIRCUITS .............................................................................................................. 3-2
3-3 PROTECTION
CIRCUITS ..................................................................................................................... 3-3
3-4 POWER
SUPPLY CIRCUITS
............................................................................................................... 3-4
3-5 PORT ALLOCATIONS
.......................................................................................................................... 3-4
3-6
PX-1981 POWER SUPPLY CIRCUITS ................................................................................................. 3-7
SECTION 4
ADJUSTMENT
PROCEDURES
4-1 PREPARATION ..................................................................................................................................... 4-1
4-2 PA AND
FRONT UNITS
ADJSTMENT .................................................................................................. 4-2
4-3 MAIN
UNIT ADJUSTMENT ................................................................................................................... 4-4
4-4 PX-1981
PREPARATION .................................................................................................................... 4-10
4-5 SUBREG
BOARD
ADJUSTMENT....................................................................................................... 4-10
4-6 ACTFIL BOARD
ADJUSTMENT.......................................................................................................... 4-11
4-7 CONV-CTRL BOARD
ADJUSTMENT ................................................................................................. 4-12
SECTION 5
PARTS
LIST
SECTION 6
MECHANICAL PARTS
AND
DISASSEMBLY
SECTION 7
SEMI-CONDUCTOR
INFORMATION
SECTION 8
BOARD
LAYOUTS
IC-PW1 BOARD LAYOUTS
8-1 ANT-SW
UNIT ....................................................................................................................................... 8-1
8-2 C-NET BOARD ...................................................................................................................................... 8-1
8-3 L-NET BOARD ...................................................................................................................................... 8-2
8-4 H-NET BOARD ...................................................................................................................................... 8-2
8-5 CONNECT BOARD ............................................................................................................................... 8-3
8-6 COMBINR
UNIT .................................................................................................................................... 8-4
8-7 SPLITR
UNIT......................................................................................................................................... 8-5
8-8 PA UNIT ................................................................................................................................................. 8-6
8-9 DET BOARD.......................................................................................................................................... 8-7
8-10 JACK-1
UNIT......................................................................................................................................... 8-8
8-11 SW
BOARD ........................................................................................................................................... 8-9
8-12 FILTER
UNIT ....................................................................................................................................... 8-11
8-13 MAIN
UNIT .......................................................................................................................................... 8-13
PX-1981 BOARD LAYOUTS
8-14 SUBREG
BOARD................................................................................................................................ 8-15
8-15 CONV
BOARD .................................................................................................................................... 8-16
8-16 CONV-CTRL BOARD .......................................................................................................................... 8-17
8-17 CONNECT BOARD ............................................................................................................................. 8-18
8-18 ACTFIL BOARD................................................................................................................................... 8-19
8-19 FIL-AC
BOARD ................................................................................................................................... 8-20
8-20 FIL-DC
BOARD ................................................................................................................................... 8-21
8-21 REGRELAY BOARD............................................................................................................................ 8-22
8-22 ACT-C
BOARD .................................................................................................................................... 8-23
SECTION 9
BLOCK
DIAGRAM
SECTION 10
VOLTAGE
DIAGRAM
IC-PW1 VOLTAGE DIAGRAM
10-1 WIRING
DIAGRAM ............................................................................................................................. 10-1
10-2
SPLITR, PA, AND COMBINR UNITS .................................................................................................. 10-2
10-3 FILTER
UNIT ....................................................................................................................................... 10-3
10-4 PA UNIT ............................................................................................................................................... 10-4
10-5 FRONT UNIT ....................................................................................................................................... 10-5
10-6 MAIN
UNIT .......................................................................................................................................... 10-6
10-7 TUNER
UNIT....................................................................................................................................... 10-7
PX-1981 VOLTAGE DIAGRAM
10-8 WIRING
DIAGRAM ............................................................................................................................. 10-8
10-9 SUBREG
BOARD................................................................................................................................ 10-9
10-10 CONV-CTRL BOARD ........................................................................................................................ 10-10
10-11 ACTFIL BOARD................................................................................................................................. 10-11
10-12 CONV
BOARD .................................................................................................................................. 10-12
10-13 CONNECT BOARD ........................................................................................................................... 10-13
10-14 FIL-AC
BOARD ................................................................................................................................. 10-14
10-15 FIL-DC
BOARD ................................................................................................................................. 10-14
10-16 REGRELAY BOARD.......................................................................................................................... 10-15
10-17 ACT-C
BOARD .................................................................................................................................. 10-15
Содержание IC-PW1
Страница 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 16 VOLTAGE DIAGRAM 18 Mar 2011 ...
Страница 24: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 16 Jun 2010 ...
Страница 42: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 16 VOLTAGE DIAGRAM 18 Apr 2010 ...
Страница 96: ...HF 50 MHz ALL BAND LINEAR AMPLIFIER iC PW1 ...
Страница 175: ...MNF F1 EP2 TO REGRELAY BOARD MLF EP1 F2 TO REGRELAY BOARD EP35 I N FG 8 19 FIL AC BOARD 8 20 ...
Страница 178: ...380G TO ACTFIL BOARD 380G 380H 380G TO CONV BOARD EP4 EP33 EP33 380H 380H EP3 EP32 EP32 EP31 8 23 8 22 ACT C BOARD ...
Страница 201: ...A 5449MZ S 3 1999 Icom Inc 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan Count on us ...