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MAIN UNIT
J401
PA
J651
R8V
T8V
ICH
ICL
AT13
VFOR
UFOR
VREF
UREF
GND
L8
L9
KEY
STRT
PR3S
PR4S
TB1V
TB2V
TB3V
TB4V
CP401
C401 0.0047
C402 0.0047
CP402
CP403
C403 0.0047
C404 0.0047
CP404
CP405
C414 470p
CP406
C415 470p
CP407
CP408
CP409
C405 0.0047
CP410
C406 0.0047
CP41
1
CP412
C407 0.0047
C417 0.0047
CP413
CP414
CP415
C408 0.0047
C409 0.0047
CP416
CP417
C410 0.0047
C41
1 0.0047
CP418
CP419
C412 0.0047
C413 0.0047
CP420
FILTER
J12
SNDSR
SEND
MICE
MIC
AT13
14V
14V
14V
GND
SDSS
HREF
HFOR
GND
L7
L6
L5
L4
L3
L2
L1
CP431
J431
CP432
CP433
CP434
CP435
CP436
CP437
CP438
CP439
CP440
CP441
CP442
CP443
CP444
CP445
CP446
CP447
CP448
CP449
CP450
C440
470p
C439
470p
C426
0.1
C445
0.0047
L435 4.7uH
MAIN UNIT (1)
AT13
L1
L2
L3
L4
L5
L6
L7
L8
L9
B0
B7
B7W
BHF
ATTS
PR2S
PR1S
5V
R8V
14V
8V
T8V
1IF
GND
MAIN UNIT (3)
TB3V
TB4V
SQLS
8V
14V
NBS
WCNT
5V
AMS8
WFM8
R8V
T8V
AGC
ALC
L1
L2
L3
L4
L5
L6
L7
L8
L9
B0
B7
B7W
BHF
1F15
ATTS
PR1S
PR2S
PR3S
PR4S
TB1V
TB2V
GND
2IF
WFAF
ICL
ICH
PTTP
SDSS
SEND
SNDSR
EALC
AAF
AFO
AMOD
MICE
MIC
DOUT
DIN
BAND
U/D
DOT
DASH
FSKK
CIVE
CIV
STRT
KEY
BDT
UL
UREF
VREF
HREF
UFOR
VFOR
HFOR
DRIV
FILTER
J9
PLL
P681
DIN
J461
AMOD
DOUT
T8V
8V
AFO
SQLS
AAF
PTTP
GND
EALC
U/D
DOT
DASH
KEY
BAND
BDT
FSKK
CIVE
CIV
C461 0.0047
CP461
C462 0.0047
CP462
C463 470p
CP463
CP464
C465 0.0047
CP465
C466 0.0047
CP466
C467 0.0047
CP467
C468 0.0047
CP468
C469 0.0047
CP469
CP470
C470. 0.0047
CP471
C471. 0.0047
CP472
C472. 0.0047
CP473
C473. 0.0047
CP474
CP475
C475. 0.0047
CP476
CP477
C476. 0.0047
CP478
W461
CP479
CP480
L464 4.7uH
T8V
8V
14V
R8V
5V
D500
1SV308
R501
1k
C501
9p
L501
0.56uH
C503
9p
L503
0.56uH
C504
18p
L504
0.27uH
C502
220p
L502
22nH
L505
27nH
C505
220p
R502
1k
C507
0.0047
R503
470
C604
0.0047
L602
100uH
C601
150p
C603
150p
C602
27p
L601
0.47uH
R601
1k
R602
12k
C605
0.0047
R604
330
R603
2.2k
C606
0.0047
R605
47
Q601
2SC4081
C607
0.0047
FI601
SFECV10.7MA-5
R613
1k
L603
100uH
R614
560
C61
1
0.0047
R615
47
Q611
2SC4081
C612
0.0047
R616
1k
C613
0.0047
R617
47
FI611
SFECV10.7MA-5
R618
820
R621
100k
C621
0.1
R622
100
Q621
2SK882
R623
R
V
-150
(10kB)
R624
33k
R625
4.7k
C622
82p
R626
100
C623
0.1
L621
LS-513
C624
0.1
R627
470
D621
MA862
R628
470
C631
0.0047
L631
47uH
C632
0.1
Q631
2SA1576
R631
47k
IC631
LA1150N
1
2
3
4
5
6
7
8
CP631
L634 100uH
L632
LS-514
C635
10p
R632 22k
C634 18p
C637
0.1
WFAF
R633
220k
R634
220
C639
0.1
T8V
C638
0.0047
C636
0.001
Q632
2SK882
R635
4.7k
C640
82p
D631
DAN222
C641
0.1
R636
100
L633
LS-513
C642 150p
CP632
R637
47k
Q633
2SC4081
R638
4.7k
C543
22
R639
100k
C644
22p
C645
47
R640
6.8k
Q634
2SC4081
R641
3.3k
D633
MA2S1
1
1
Q635
DTC114EE
WFAF
C648
0.0047
AMS8
NBS
R642
330
R643
22k
C646
0.1
D634
MA2S1
1
1
C647
10
R644
1k
Q636
DTA114EU
W514
L511
FL-522
C51
1
0.0047
R51
1
1k
C512
9p
FI511
FL-261
C513
9p
C514
0.0047
R513
330
R512
1k
D502
MA862
L513
2.2uH
R514
470
C521
0.0047
C522
0.0047
L521
2.2uH
C523
0.1
L522
2.2uH
C524
0.001
C516
0.001
C515
0.001
R527
220
R528
220
D521
1SV265
1
2
5
4
3
L523
2.2uH
R521
47
C527
0.0047
4
1
3
2
IC521
PC1688
C525
0.0047
L527
10uH
C528 0.0047
R522 47
C529 0.0047
L524
2.2uH
R523
100
C534
0.1
C536
0.1
R524
220
L525
22uH
Q522
DTC114EE
AGC
ALC
8V
R8V
T8V
D522
1SV265
3
4
5
1
2
C530
0.001
L528
10uH
C531
0.1
L529
2.2uH
R525
220
R526
220
C537
0.001
Q521
DTC114EE
C532
24p
C533
24p
C541
220p
L542
22nH
L541
0.22uH
C542
12p
L543
0.39uH
L544
0.15uH
C543
33p
L546
0.10uH
C545
22p
L551
LR-317
D551
HSB88WS
C552
68p
L552
LR-317
R553
270
R551
270
R552
18
C553
0.1
R554
470
D552
MA862
L561
0.15uH
1F15
R561
47
C561
0.1
L562
LS-512
C562
10p
C563
15p
FI561
FL-23
L563
LS-512
C565
0.1
R562
220
L565
0.15uH
L564
0.15uH
D561
MA862
R563
220
D562
MA862
R564
47
C566
0.1
L566
LS-515
ALC
AGC
C571 0.0047
C572 0.0047
C567
270p
R565
120
D571
MA2S077
L571
68uH
C573
0.1
L572
68uH
C574
0.1
R576
220
D573
1SV265
3
4
5
1
2
L573
100uH
C585
0.1
R577
220
L574
100uH
R578
100
C591
0.1
C587
0.1
R579
R
V
-143
(470B)
GND
GND
IN
OUT
GND
VCC
3
2
1
C575
0.0047
C577 0.0047
C588 0.1
R580 100
R581 220
IC571
PC2713T
4
5
6
L576
100uH
C579
0.0047
C576
0.0047
C578
0.0047
R582
470
C582
0.1
R583
220
C589
0.1
L577
100uH
L575
100uH
L578
100uH
C583
0.1
R584
470
R573
220
D572
1SV265
5
4
3
2
1
R574
220
Q571
DTC114EE
L579
5.6uH
C580 56p
C581 56p
D574 MA2S111
R585 4.7k
Q572
2SC4081
Q573
2SC4081
R586
3.3k
R587
4.7k
C590
0.1
WCNT
R572
2.2k
R571
4.7k
DRIV
R588
47k
J551
CP551
2LO
AT13
L2
L2
L3
L4
L5
L6
L7
L8
L9
B0
B7
PR1S
PR2S
ATTS
BHF
B7W
2IF
WFAF
ICL
ICH
PTTP
SDSS
SEND
SNDSR
EALC
AAF
AFO
AMOD
MICE
MIC
DOUT
DIN
BAND
U/D
DOT
DASH
FSKK
CIVE
CIV
STRT
KEY
BDT
UL
UREF
VREF
HREF
UFOR
VFOR
HFOR
14V
8V
5V
AMS8
WFM8
R8V
T8V
AGC
ALC
L1
L2
L3
L4
L5
L6
L7
L8
L9
B0
B7
B7W
BHF
1F15
ATTS
PR1S
PR2S
PR3S
PR4S
TB1V
TB2V
TB3V
TB4V
SQLS
NBS
WCNT
R8V
T8V
ICH
ICL
AT13
VFOR
UFOR
VREF
UREF
L8
L9
KEY
STRT
PR3S
PR4S
TB1V
TB2V
TB3V
TB4V
SNDSR
SEND
MICE
MIC
AT13
14V
14V
14V
SDSS
HREF
HFOR
L7
L6
L5
L4
L3
L2
L1
AMOD
DIN
DOUT
T8V
8V
AFO
SQLS
AAF
PTTP
EALD
U/D
DOT
CASH
KEY
BAND
BDT
FSKK
OIVE
CIV
1F15
WFM8
C506
0.0047
R612
6.8k
D632
1SS375
WFM8
L512
LS-522
C526
0.0047
C546
47
C544
220p
L545
22uH
UL
C633
0.1
2IF
R8V
L526 2.2uH
C564
2p
D501
1SV308
D622
MA2S111
L622
100uH
C625
0.1
8V
C649 0.1
R619
680
8V
14V
R8V
D923
MA2S111
C432
0.0047
C434
0.0047
MAIN (2)
DRIV
L417 4.7uH
L477 4.7uH
¡
MAIN UNIT
MAIN (2)
10 - 3
WFM: 0 V
WFM: 1.25 V
WFM: 0.95 V
WFM: 0.8 V
WFM: 4.2 V
WFM: 4.2 V
WFM: 6.4 V
MEASUREMENT CONDITIONS
SUPPLY VOLTAGE:13.8 V
14.1 MHz USB
DIGITAL MULTIMETER :50 k‰/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 ...