![background image](http://html.mh-extra.com/html/icom/ic-706mkiig/ic-706mkiig_service-manual_612196067.webp)
GND
GND
GND
THH
L4H
L6H
PA2S
GND
SRF
SRF
GND
GND
T8V
B7H
L5H
L3H
L2H
GND
SIF
SIF
D192
MA2S077
L196
0.12uH
C199
15p
C198
39p
C200
39p
C197
0.01
L195
LR-317
R195 47
R191
220k
C191
0.0047
R194
1
L194
2.2uH
Q191
2SK2171
L193
0.33uH
C196
0.01
R193
150
C195
33p
L192
0.22uH
C194
180p
C193
56p
L191
10uH
L197
47nH
D191
MA2S077
R192
47
C192
0.01
D172
MA2S077
L176
10uH
R172
100
C182
0.01
C180
330p
L175
0.15uH
C179
0.01
C181
82p
C178
68p
L174
0.27uH
C177
120p
C175
24p
L173
82nH
C176
150p
C174
150p
C172
39p
L172
68nH
C173
75p
L171
10uH
C171
0.1
R171
220k
D171
MA2S077
R111 100
L111 220uH
D112 MA2S077
D162
MA2S077
L164
100uH
C165
330p
L163
0.39uH
C166
0.0047
L162
0.33uH
C164
100p
C163
0.0012
C162
220p
L161
100uH
C161
0.1
D161
MA2S077
D111
MA2S077
D122
MA2S077
L124
100uH
C125
0.1
L123
0.39uH
C126
0.0047
C124
0.0015
L122
3.3uH
C123
0.015
C122
0.0027
L121
100uH
C121
0.1
D121
MA2S077
D212
DAN222
D211
DAN222
3
2
1
4
5
Q214
UMC3N
R214
10k
Q215
DTC114EE
R213
10k
B7RH
PR2S
Q213
DTC114EE
Q212
DTC114EE
Q211
2SB1123
R211
10k
D142
MA2S077
L144
100uH
C145
0.001
L143
1uH
C146
680p
C144
330p
L142
1uH
C143
510p
C142
390p
L141
1uH
C141
0.1
D141
MA2S077
D132
MA2S077
L134
100uH
C135
0.0027
L133
1.8uH
C136
0.001
C134
680p
L132
1.8uH
C133
0.0015
C132
680p
L131
2.2uH
C131
0.1
C147
0.1
D131
MA2S077
D152
MA2S077
L154
0.68uH
C155
390p
L153
0.56uH
C156
220p
C154
150p
L152
0.47uH
C153
0.001
C152
180p
L151
100uH
C151
0.1
D151
MA2S077
L155
47nH
L102
0.33uH
C104
10p
C105
12p
C103
150p
C101
68p
C102
27p
L101
0.27uH
R102
470k
R101
470k
D101
MA2S077
HPF BOARD
J231
CP231
R238
270
R237
18
R236
270
HRX
J101
CP101
D111
1SV312
1
2
4
3
R120
150
L121
100uH
C121
0.1
C122
0.0027
C123
0.0068
L122
4.7uH
C124
0.0015
L123
5.6uH
C125
0.1
R122 1.8k
R125 1.8k
R126 1.8k
Q121
DTC114EE
Q122
DTC114EE
R124
10k
R123 220k
D123
MA2S111
R1
12
100
C1
12
0.1
R113
220
R111
82
R115
220
Q111
DTC114EE
R1
14
220k
Q112
DTC114EE
R116
220
C111
0.1
R1
17
100
C1
13
0.1
L111
4.7uH
L112
6.8uH
C115
390p
C1
14
0.0033
C1
15
0.0033
D112
1SV312
1
2
4
3
R135
10k
C138
0.1
R134
270
C137
47p
C135
75p
C136
12p
L133
0.15uH
C133
27p
C134
39p
L132
0.1uH
C132
0.1p
R133
560
R132
560
C131
0.1
Q133
DTA114EE
GND
GND
GND
THH
L4H
L6H
PA2S
GND
SRF
SRF
GND
GND
T8V
B7H
L5H
L3H
L2H
GND
SIF
SIF
FILTER
P1
PA
P101
PA
P481
PLL
P891
PAI
Q131
DTA114EE
D131
1SV308
R131
220k
Q132
DTA114EE
C363
0.1
C362
0.1
C361
0.1
C367
0.1
C366
0.1
C365
0.1
C364
0.1
L4H
L6H
L5H
L3H
L2H
L159
10uH
PR2S
D132
1SS385
BHF
L7
B7W
L1
D351
DAN221
L2
L3
L4
L5
L6
B7
ATTS
D352
DAN222
R343
10k
R342
10k
L344
120uH
C351
10
C352
0.1
IC351
TD62783AFN
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
VS
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
GND
R358
10k
R357
10k
R356
10k
R355
10k
R354
10k
R353
10k
R352
10k
R351
10k
AT13
B7H
L5H
L4H
L3H
L2H
THH
L6H
L1
L2
L3
L4
L5
L6
L7
L8
L9
B0
B7
B7W
BHF
ATTS
PR2S
PR1S
AT13
L1
L2
L3
L4
L5
L6
L7
L8
L9
B0
B7
B7W
BHF
ATTS
PR2S
PR1S
AT13
T8V
8V
14V
B8V
5V
GND
MAIN UNIT(2)
Q351
UMC3N
3
2
1
4
5
R359
10k
Q352
UMC3N
3
2
1
4
5
R340
10k
Q353
UMC3N
3
2
1
4
5
R341
10k
L8
L9
B0
C238
0.1
L8H
L9H
80H
L233
0.33uH
C236
15p
C237
0.1
L232
0.82uH
L231
22uH
4
5
3
2
1
6
C2236
470p
C239
3.3
IC231
PC2709T
C235
0.1
R234
10
C2238
470p
C233
0.1
R232
470p
D222
1SV312
4
3
1
2
C224
0.001
R224
270
3
4
2
1
IC221
TA4001F
R223
15
C223
0.001
C222
0.1
L196
56nH
C195
8p
C196
22p
C197
30p
L195
68nH
C186
27p
L184
0.18uH
C185
5p
L183
0.18uH
C184
0.5p
C183
4p
C182
0.5p
L182
0.18uH
C181
5p
R181
470
C188
0.001
C187
0.001
R200
180
D142
1SV312
3
4
2
1
L141
100uH
R145 1.8k
R144 1.8k
R143 1.8k
R141
220k
D141
1SV308
D143
1SV308
J141
CP141
VURX
C141
0.1
D2182
1SV308
D151
1SV308
R151
220
L151
100uH
R153
150
L153
100uH
C153
0.1
5
6
7
8
4
3
2
1
IC151
PC1658G
SETC
IN
BYPS
BYPS
VCC
OUT
SETE
GND
C168
10p
R164
47
C155
0.1
L154
100uH
C169
0.001
R154
470
L155
100uH
R155
820
C161
0.1
D153
1SV308
R156
180
Q151
DTC114EE
R157
470
C159
0.1
R159
10
C163
0.1
C165
0.1
R160
270
C167
0.1
R161
18
R162
270
D2183
1SV308
R174
220
R165
220
C171
0.1
D152
1SV308
R163
220
L156
100uH
C173
0.1
L158
10uH
R252
220
L254
100uH
D252
1SV308
C253
6p
C255
10p
C254
1.5p
L251
22uH
L252
22uH
C256
1.5p
C257
10p
L253
15uH
C258
4p
C259
4p
R251
220
C264
8p
L262
47nH
L261
33nH
C262
18p
C263
33p
C261
22p
L255
100uH
1IF
D251
1SV308
D262
1SV308
D261
1SV308
R253
220
L257
100uH
C251
0.0047
L271
617DB-1327=P3
D275
1SV308
C285
47p
C272
10p
L272
617DB-1327=P3
C273
0.0047
R280
330
L273
2.2uH
D271
HSB88WS
1IF
R271
220
L256
100uH
D275
1SV308
D273
1SV308
R276
1k
C278
0.001
C279
0.001
D274
1SV308
D272
1SV308
R277
1k
R275
1k
C277
0.001
C276
0.001
R274
1k
C275
0.001
R278
10k
R288
3.3k
C289
0.001
Q271
DTA144EU
R279
1k
C287
0.001
C2240
0.001
Q354
UMC3N
3
2
1
4
5
C191
0.0047
C192
0.0047
R203
10
C2235
470p
C2237
470p
3
4
2
1
C376
470p
FI373
LFSC25N
2
4
3
1
C375
5p
L372
18nH
C374
5p
FI372
LFSC25N
1
3
4
2
W301
C373
5p
L371
18nH
C372
5p
FI371
LFSC25N
1
3
4
2
C371
470p
R286
10
R285
470
C290
0.1
C282
0.0047
L281
0.18uH
IC281
PC2709T
6
1
2
3
5
4
C281
0.0047
R283
270
R281
270
R282
18
J281
CP281
1LO
J1
J101
D224
1SV308
R202
150
C212
0.001
W231
W201
W303
W302
W202
MP9
MP10
MP11
R212
4.7k
C300 0.001
C301 0.001
C302 0.001
C303 0.001
D133
MA2S111
MP4
IC222
TA4002F
R142
220k
R284
10
C293
0.0047
C157
0.1
R158
220k
C284
0.001
C286
0.001
C2239
0.001
C1
1
1
1
L6H
L2H
L4H
L3H
L5H
R121
180
R204
150
T8V
C201
0.001
R201
470
5V
BHF
L282
33n
C288
3p
8V
R8V
L8H
5V
L9H
PR1S
T8V
8V
B8V
80H
14V
5V
MAIN (1)
• MAIN UNIT
MAIN (1)
10 - 2
MEASUREMENT CONDITIONS
SUPPLY VOLTAGE:13.8 V
14.1 MHz USB
DIGITAL MULTIMETER :50 k‰/V
40.0—59.999999 MHz 11.6V
22.0—29.999999 MHz 11.6 V
0.03—1.999999 MHz
30.0—39.999999 MHz
11.6 V
2.0—3.999999 MHz
11.6 V
4.0—7.999999 MHz
11.6 V
15.0—21.999999 MHz
11.6 V
8.0—14.999999 MHz
11.6 V
0.03—29.999999 MHz
4.6 V
30.0—59.999999 MHz 4.6 V
4.0—7.999999 MHz 4.6 V
8.0—14.999999 MHz 4.6 V
15.0—21.999999 MHz 4.6 V
22.0—29.999999 MHz 4.6 V
40.0—59.999999 MHz 4.6 V
400.0—470.000000 MHz 4.6 V
60.0—199.999999 MHz 4.6 V
0.03—1.599999 MHz 4.6 V
0.03—1.999999 MHz 4.6 V
2.0—3.999999 MHz 4.6 V
4.6 V
4.4 V
ON:0 V
OFF:4.4 V
4.8 V
Summary of Contents for IC-706MKIIG
Page 1: ...SERVICE MANUAL HF VHF UHF ALL MODE TRANSCEIVER i706MK G ...
Page 58: ... HPF BOARD BOTTOM VIEW DRIVER BOARD BOTTOM VIEW 8 6 ...
Page 60: ... PA UNIT BOTTOM VIEW 8 8 ...
Page 62: ...1 8 16 9 PLL UNIT BOTTOM VIEW 8 10 ...
Page 64: ... FILTER BOARD BOTTOM VIEW 8 12 ...
Page 85: ...6 9 16 Kamihigashi Hirano ku Osaka 547 0002 Japan A 5564HI S C 1999 by Icom Inc ...