Icom IC-R20 Service Manual

Jan. 2010
14
SECTION 9.
SECTION 9. BOARD LAYOUTS
The combination of top side and bottom side of this
• LOGIC UNIT
(TOP VIEW)
AFOUT
GND
1
2
J8
SP
W18
W19
+
–
J6
[DC]
[SP/CI-V]
J3
C18
C19
C20
C21
C29
C33
C36
C173
C175
C176
C177 C178
C180
C182
C183
C185
C196
D3
D6
D9
D12
D26
D27
D28
D29
D30
D31
D34
D35
D36
DS1
3SD2SD
DS4
6SD5SD
DS7 DS8 DS9
DS11
EP1
EP2
EP3
EP4
EP7
EP9
EP10
EP12
J8
Q1 Q4
Q30
Q31
Q32
Q33
Q34
Q35
Q36
R12
R14 R19 R23 R29
R32R38
R49 R53 R55
R181
R182
R183
R184
R185 R186
R187 R188
R189
R192
R193
R194
R195
R196 R197
R198
R199
R202
B6077D
H0H5H10H15H20H25H30H35H40H45H50H55H60H65H70H75H80H85H90H95H100H105H110H115H120H125H130
V0 V5 V10 V15
V20 V25 V30 V35 V40 V45 V50

Icom IC-R20 Specifications

General

Mode	AM, FM, WFM, SSB, CW
Antenna Connector	BNC
Memory Channels	1250
Selectivity	AM/FM
Output Power	150mW at 8 Ohms
Battery Life	Approx. 8 hours with BP-206 (at 50mW audio output)