Icom IC-H2 Service Manual

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I
16.9MHz
455KHz
RF Amp
'
Ceramic
Noise
Squelch
1st Mixer
Crystal
1st IF Amp
,.
0101
r-+
,.
Filter
~
Filter
Detector
~
Control
2SC2026
0103
F1101
0104, 0105 -
-
0113
r
,___
F1102
0114, 0115
0102
2SK192
16M15B2
2SC2668 x 2
2SC2668
CFU455E2
2SA1048 2SC2458 x 2
f ~VCC
~ ~
I v I
Squelch [
Indicator
Regulator
T/R Switch
~ -.j 2nd Mixer
2nd ~
Noise Amp~
Control
0117 2SK192
0106, 109, 111
~R6V
IF Amp
re--
0118 2SB562
rl>
116,112
t AF Powoc -.aj
0121, 0122
0119, 0120
2SA1048 x 2
2SC2458 x 2
4J
r<rcJ
~
6V
LED
Power
Switch
x2
Multiplier
I
0209
2SC2668
Battery
Cl.
Pack
X2
Microphone
D-
Multiplier
-
0207
2SC2668
Mic Amp
0125· 126
Limiter
2SC2458 x 2
~
0128
0127
2SA1048
2SC2458
......
v in Transmit mode
----~~ .. in Receive mode
-----1[> in Common mode
~
...
~
2SA1048 x 5
0107,108,110
2SC2458 x 3
..L
t ~
T
T6V
R6V
X101
16.445MHz
Buffer Amp
Driver
0211
~
0212
-£;'.>
2SC383
2SC2053
"'7
Crystal
X202(R}* l
Switch
H>
X203(T)* 9-i)
D210-D212
1SS53 x 3
(*Refer to page 3 - 4)
I
Buffer Amp Buffer Amp
0208
0202, 0203
2SC2026
2SC2668 x 2
Lf
1'
T
Low-pass
vco
Filter FM Modulator
0129
~
0201 2SK192
(}-
2SC2458 D203 1SV50
.,.
~FM Detect
A,;>. Amp
~
2nd LO
...--/'¢.f"" IC102 BA526
....
IF IC
Volume
Speaker
IC101 MC3357
Antenna
Power
Amp
RF
T
T/R Switch
Low-Pass
0213
f-l;i
D216, D217
llf-(;1I
2SC1947
Filter
1SS53 x 2
Mute Switch
X2
0210
Crystal OSC
2SC2458
~
PLL Mixer
Multiplier
-{>
-j)
Low-pass
0214
0206
0204 2SA1048
2SC2668
Filter
2SC2026
~
'i7
Oscillator
Level
Channel
Switch
l
Divider
Converter
0
0-{)
(1/2048)
T
IC203
0205
0
X201
TC5082
2SC945
5.12MHz
2.5KHz
'i7
Phase
Programmable
Matrix Board
Detector
Divider
0401
Loop Filter
kl-
IC202
<I-
IC201
Fl-
2SA1048
<I-
0402
TC5081
TC9122
2SC2458
l
en
m
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0
:z
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Icom IC-H2 Specifications

General

Brand	Icom
Model	IC-H2
Category	Transceiver
Language	English