Icom IC-H12 Maintenance Manual page 10

(
RF Amp
0101
2SC2026
0102
2SC2668
Indicator
Control
0121,0122
2SA1048 x 2
LED Power
Switch
"'"
Battery
I
Pack
Microphone
Mic Amp
0125· 126
2SC2458 x 2
0127
2SA1048
in Tran m·t m
---- --1�•
in Receive mode
----[>
in Common mode
(
10.695MHz
Crystal
1st Mixer 1st IF Amp
Filter
0104, 0105
0103
F1101
2SK192 2SC2668 x 2
lOM 1589
T/R Switch
Regulator
0106,109.111
0117 2SK192
R 6V
116, 112
0118 2SB562
2SA1048 x 5
0119, 0120
0107.108,110
2SC2458 x 2
5V T5V R5V
x2
Multiplier Buffer Amp
0209 0211
2SC2668 2SC383 2SC2053
(R)
X202
Crystal
l
Switch
X203 (Simp)
D210-D212
T
1SS53 x 3
X204 (Dup)
X2
Multiplier Buffer Amp
Buffer Amp
0207 0208 0202, 0203
2SC2668 2SC2026
2SC2668 x 2
Low-pass
Limiter
Filter
FM Modulator
0128
0129 0201 2SK192
2SC2458
2SC2458 D203 1SV50
1
s ode
455KHz
Ceramic
Filter
Fl102
CFU455E2
2nd
IF Amp
l.
2nd LO
IF IC
X101 IC101 MC3357
10.24MHz
RF
Driver Power Amp
T/R Switch
0212 0213
D216, D217
2SC1947
1SS53 x 2
X2
Crystal OSC
PLL Mixer
Multiplier
0204
0206
2SC2668
2SC2026
Oscillator
1
Divider
(1/1024)
T
IC203
TC5082
X201
7.68MHz
7.5KHz
vco
Phase
Detector
Loop Filter
IC202
TC5081
(
Noise Squelch
Detector
Control
0113 0114, 0115
2SA1048 2SC2458 x 2
Squelch
Noise Amp
AF Power
Amp
IC102 BA526
Volume
Low-Pass
Filter
Mute Switch
0210
2SC2458
Low-pass
0214
2SA1048
Filter
Channel Switch
Level
Converter
0205
0
2SC945
Matrix Board
Programmable
0401
Divider
2SA1048
IC201
0402
TC9122
2SC2458
en
m
C')
-4
o·
z
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OJ
r-
0
n
,._
0
)>
Speaker
G)
::JJ
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s:
Antenna
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