Icom IC-R20 Service Manual - Page 46

Unit Abbreviations, Logic Unit, Rec Unit, 1stbvco Board, Downconv, Board, 2nddvco, 2ndcvco Board

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4.2 (5/32) 2 (3/32) 34.8 (4 3/8) 0.9 (1/8) 1 (1/32) 58 (2 1/32) 1 (1/32) Unit; mm (inch) 32.9 (1 9/32) 33.9 (1 11/32) 14.8 (19/32) MP2 (L) MP30 (C) MP29 (C) 140 (5 9/16) 157 (6 3/16) MP7 (C) MP19 (C) S24 (L) MP35 (C) DS12 (L) MP4 (L) LOGIC UNIT MP3 (L) MP32 (C) MP31 (C) MP2 (D) DOWNCONV BOARD MP1 (D) MP26 (C) 1STBVCO BOARD 1STAVCO BOARD S25 (L) MP27 (C) MP1 (RE) REC UNIT MP1 (1B) MP1 (2D) MP1 (1A) EP1 (R) RF UNIT 2NDDVCO BOARD MP1 (R) MP1 (2C) 2NDCVCO BOARD MP2 (RE) MP27 (C) MP5 (L) MP28 (C) MP11 (C) MP34 (C) MP9 (C) MP5 (C) MP6 (C) MP17 (C) SP1 (C) W1 (C) MP1 (C) UNIT abbreviations (C) : CHASSIS PARTS (R) : RF UNIT (D) : DOWNCONV BOARD (L) : LOGIC UNIT (RE) : REC UNIT (1A) : 1STAVCO BOARD (1B) : 1STBVCO BOARD (2C) : 2NDCVCO BOARD (2D) : 2NDDVCO BOARD MP23 (C) MP13 (C) MP8 (C) MP12 (C) MP23 (C) MP36 (C) MP14 (C) MP16 (C) MP23 (C) 7 - 2 J1 (C) MP20 (C) MP22 (C) MP15 (C) MP3 (C) MP21 (C) MP2 (C) MP4 (C) MP18 (C)

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7 - 2
4.2
2
Unit; mm (inch)
140
1
(
1
/
32
)
(
5
/
32
)
(
3
/
32
)
(
1
/
32
)
(
19
/
32
)
(2
1
/
32
)
(1
9
/
32
)
(1
11
/
32
)
(4
3
/
8
)
(
1
/
8
)
(5
9
/
16
)
(6
3
/
16
)
58
1
32.9
33.9
14.8
34.8
0.9
157
UNIT abbreviations
(C)
: CHASSIS PARTS
(R)
: RF UNIT
(D)
: DOWNCONV BOARD
(L)
: LOGIC UNIT
(RE) : REC UNIT
(1A)
: 1STAVCO BOARD
(1B)
: 1STBVCO BOARD
(2C)
: 2NDCVCO BOARD
(2D)
: 2NDDVCO BOARD
LOGIC UNIT
REC UNIT
RF UNIT
J1 (C)
W1 (C)
SP1 (C)
MP31 (C)
MP32 (C)
MP30 (C)
MP29 (C)
MP1 (C)
MP2 (C)
MP4 (C)
MP18 (C)
MP21 (C)
MP3 (C)
MP15 (C)
MP11 (C)
MP26 (C)
S24 (L)
MP1 (1A)
MP1 (R)
EP1 (R)
MP1 (D)
MP2 (D)
MP1 (2C)
MP1 (2D)
MP1 (1B)
MP27 (C)
MP2 (RE)
MP28 (C)
MP3 (L)
MP5 (L)
DS12 (L)
MP2 (L)
MP4 (L)
MP20 (C)
MP22 (C)
MP23 (C)
MP23 (C)
MP23 (C)
MP14 (C)
MP36 (C)
MP16 (C)
MP17 (C)
MP5 (C)
MP9 (C)
MP6 (C)
MP13 (C)
MP12 (C)
MP8 (C)
MP34 (C)
MP19 (C)
S25 (L)
MP7 (C)
MP1 (RE)
MP27 (C)
1STBVCO BOARD
DOWNCONV
BOARD
2NDDVCO
BOARD
2NDCVCO BOARD
1STAVCO
BOARD
MP35 (C)