Icom IC-02A/AT/E Instruction Manual page 50

BAY =
PLL UNIT
16.9MHz
X'tal
FILTER
16M15B2
F1202
1ST
MIXER
2S8K241
Q205
RFE AMP
2SK241
Q206
es RECEIVE - MODE
oo TRANSMIT - MODE
—————> COMMON - MODE
POWER
AMP
$€1025
1C204
28B909:0213 TR
28C2458:0214 SWITCH
1SS97 x 2
D206, 0207 188216 x 2
D208, 209
LOW-PASS
FILTER
2SA1048 x 2
Q216, Q217
OO HI/Low
'
sat NOISE NOISE Seas | 1G AGEMHE
SQL CONTROL DETECTOR AMP 4 (] |
TC4069 1$$211 uPC358C |
1103 D103 L !
=| l FM DETECTOR 2NEECTOSE aaa
een a Maye 1c201 VY \F AMP
2SA1048 x 2 CONTROL MC3357P 2SC2668 x 2
Q118 2SC2458 2NOD MIXER a119 258909 [+ ——£<t- 2sc2458 N 0203, 204
Q120 2SC2458 2ND IF AMP
Q121 2SA1048 Q105
sp | Q122 2801225 A
' Q132 2SC2458 MAIN UNIT c-
H
| | METER CERAMIC
BEEP \ AMP FILTER
BEEP | USES 4
TCA069 COMPAR ATOR 2SC2668x2 F1201
COMP \
| 1103 ' LJ TA75393 201, 202 CFU455E2 | 455kHz
Lots 1C105 :
t D/A |
-—| | za
: MIC LIMITER LOw-PASs | vco BUFFER PRE- eae
FM v
AMP 2SA1048 FILTER 1 | 0214 188216 AMP DRIVER
7A
2SC2458 x 2 28C2458
uPC358C |
wea ies 2802026
pecans
28240
2 4 Q101, 102 Q103, 104 1C101 ' Q211 Q208 209 g210
MI
a ES ean =e a, Sean, | T: 144 ~ 146MHz
iy | Re 127.1 ~ 129.1MHz
Ioo2e == t—==— | | upo2834c 1C203 1/1024
ca sac sooner Ke
A T d IDER O tone |i ! roan SoniER | SWALLOW COUNTER OSC DIVIDE
4 | +64 + +65 b
(e) i ecate ap 1} FILTER uPBS71C L [ varcn ky
TONE I ies 1202 A
c —— H | | CHARGE PHASE
| A PUMP DETECTOR
-——--- co | sa aed = = = SJ = ]
1C-02AT ; ! |
\
cOLi~4 O.T.M.F
! i)
1} ENCODER |I ' x 108,110,111 | UNLOCK
i]
s ' t SENS
ROW! ~4 jee > vec ee
1} | Berets TSS
! 25A1048, | bit [REGULATOR 2S L048, TH5
CK.DATA.CTC _ | \ | $81250HG 288909
CTCSS 1€104 109,112,113
(a PP) asatoas
peers ie 2802458
| (oll BY 0129, 130 CURRENT MPU
SS A | — lee BACKUP
apes F a e e e n 2SB909° 1$$233 x 2
Q114, 115 0118, 119
INT/EXT SELECT
REVERSE CONNECT
PROTECT
RL101 - 0117
LOW
T/R CONTROL "y 87101
BATTERY ae -
SENS TC4071
TA75393
77
§.12MHz: 1C-O2A/AT
6.4MHz : IC-O02E
X'tal
osc
2SC2458
Q212
INITIALIZA-
TION
MATRIX
LOGIC UNIT
EJcup
S402
Mee coMm1.2
1C401
HD44795 COLI ~4 |
KEY
BOARD
ROW ~4
POWER
DOWN
CONTROL
2SC2712
2SA1162
Q401, 402
POWER ON RESET
Q403 2SA1162
To upgrade quality, some components
be subject to change without notice.