Icom Ic-910h Vhf/Uhf All Mode Tranciever Service Manual

							12 - 7
12-8 UX-910 MAIN UNIT (1)
MP541
C546
0.5pR555
100
R551
22kL555
56nH
C551
47p R533
100
R543
6.8k
C5490.001
L531
10nH
Q541
2SC5508 8V_1VCO
D531
MA8082 R531
220Q531
2SD2216EP543
D5411SV239
R515
10
C548 10p
C533
1
C534470p
C538
0.001
C531
470C532
1 SSB,CW
Q511
2SK880C514
0.0047 C511
0.001C513
0.1 C512
0.1
1
27 8
  4 IC502AEP510
EP610 C515470p
C5090.1
R514
120C516
1 C520
0.001 C522
0.1
C523
470pL511
10mH
R501
1k C508
470p C507
0.1
R512
2.2k
C506
10p
L501
10mH Q501
DTA144EUC524
1
C564
22p+9
ULP+5
-5V
+9
-5V
+5 +9-5V
+5 +9-5V
+5
+9-5V+5
+9
-5V
MAIN UNIT (1)
R502
1kR503
1k
R504
1kC561
22p
C562
22p
C563
22p 12PS
DAT CK+9FM FIN   1
GND   2
CLK   3
DATA   4
STB   5
XIN6 VCC7 LD8 BS9 CP10 IC501
TB31242FN
C502
470p
R681
56 C501
470pC503
22 C504
0.0047
R516
1.8k
R506
680 R511
5.6k
Q512
2SC4116
5   6
3IC502B
TC7W66FU TC7W66FU
C518
2.2 R518
120R519
1.2k
C517
1R517
1k L512
0.1mH
CP501 C510
0.033
W531
W601 W532C542
0.5p R541
6.8k
C541
6p
R542
6.8kC543
1.5p
C545
0.001C535
0.1
C544
1.5p
R544
470 Q542
2SC5193 L542
8nH
C536
0.001C537
47p
C583
2p C581
2.5pC582
1p L581
6.8nH
R556
C55247p
C55010p
Q551
2SC5107 R547
47
220
R553
22 C584
0.3p
C585
3p L582
8.2nHC571
5p
R684
100R557
22
C641
5p C573
2pC575
3p
C572
12pC574
33p
L572
6.8nH L571
8.2nH
C642
2.5pC643
MAIN UNIT
(2)
4p
1LO C645
68p C644
22p
L641
10nHL642
8.2nH R554
47
C687
470p
Q681
2SC5107 R682
56
C689
0.1
C685
0.001C688
10p
C686
47p
R683
47k
C613
0.0047C614
0.001
1
2
3
4
5 6 78
IC610
TC7W74FU C610
220p C611
270p C612
82pL610
0.22mH L612
0.56mHL611
0.82mHR610
100
R613
100R612
68
R611
100 +5
1G_RET
C605
0.0047L602
10mH
C607
1 C606 0.0047
  1
  2
  35
4
IC601
TC7SU04F
R603
1M R604
100Q503
DTA114EER505
4.7k Q502
DTC114TU
5V_DDS
C609
0.1 R605
220 J312C505
0.001
Q601
2SC4215 R607
2.2k L603
0.33mHL604
0.68mH
C603
100pC604
120p
R606
33k SCLK P312
TO IC-910
PLL UNIT J541+5 CNTY
12C2 12DS
DAT
CK
R621
1k
R622 1kR634
2k R633
2k
R635
2kC608
0.1
VSS   1
SYSCLKO   2
VDD   3
VDD   4
VSS   5
DA0   6
DA1   7
DA2   8
DA3   9
VSS  10
DA4  11
DA5  12
DA6  13
DA7  14
VSS  15
VSS  16
DA8  17
DA9  18
DA10  19
DA11  20
VDD  21
TE1  22
TE2  23
TE3  24
VDD  25
VSS
VSS
VDD
TEOUTH0
TEOUTH1
TEOUTH2
TEOUTH3
TEOUTH4
VDD
VDD
SYSRESET
VSS
VDD
OSCI
VSS
OSCF
VDD
VSS
OSCO
VSS
PDIN
REFIN
VSS
DIVOUT
VDD 26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
PD251 PD152 VDD53 PD054 VSS55 PDTRI56 VDD57 REF_OSC58 RC59 FCK60 VSS61 Q16MA62 Q4MA63 VDD64 VSS65 ETCO766 ETCO667 ETCO568 VSS69 ETCO470 ETCO371 VSS72 ETCO273 ETCO174 ETCO07576 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96
97 98 99 100
VDD
DATA
CONTCL
VSS
BUSY
VSS
CON0
CON1
CON2
STRB
VSS
VSS
SYS_
CLK
VDD
VSS
BUN4O
BUN2O
BUM2O
VDD
BUN4I
BUN2I
BUM2I
VDD
VSS
VSS
IC661
SC-1246AC671
0.1 C672
0.001
C673
0.001 R661
1kR662
1k R663
1kR664
1k
C670
0.001
5 67
IC701B
mPC4570G2 C702
470p
C704
0.001CP701 L702
VCC CK
PR D
CLR Q
Q GND
10mH
C705
10 R701
1kQ701
2SA1588
R702
470C712
0.001MP701
-5V_LPF
+9
R744
100
W731 C746
10R734
100
8V_2VCOMP501
C756
0.001Q751
2SD2216
R751
220
C754
47
D751
MA8082 C755
1
R748
15
R750
15
C747
12p C748
2.5pL743
33nH
C749
12p
2LO R741
3.9k
R732
1kR731
2.7kC734
0.1
C735
0.001
R746
15 Q731
2SC5107
Q741
2SC5107
C741
0.001 C742
12p
L741
82nH
C733
2p
C731
22p
R733
330 C732
22p C715
0.001
R742
1.5k
R743
100C743
0.1
C744
0.001
R719
1kL712
43nH
D711
1SV214 R729
2.2M
D712
1SV214 L711
0.1mH
  3   2
1 4
8 IC701A
mPC4570G2
R727
100
C708
2.2R728
1k
C709
470p
C710
0.001L703
10mH
C713
0.001
C711
10R724
150R726
150 C707
4.7 C706
4.7
C669
0.1
C668
0.001R722
10k
R723
10k PD1
PD2 C661
0.001 R623 1k
R624 1k
R625 1k
R626 1k
R627 1kR636
2k
R637
2k
R638
2k
R639
2k
R640
2k
MP602R628 1k
R629 1k
R631 R630 1k
1kR641
2k
R642
2k
R643
2k
R645
2k
C675
10 L651
33mHL652
39mHL653
39mH R644
2k
  1
  2
  35
4 IC621
TC7SU04F C674
0.001
L621
10mH L661
10mC663
0.001C664
0.1C677
0.1C665
0.001 C676
0.1C662
0.001
C680
47
5V_DDS
C770
470pC771
470p R771
1k
C666
0.001C667
0.0015V_DDS
D771
DAN222C773
0.1 R772
1kC767
0.001
1
2
3   5
  4IC762
TC7S04F L771
10mH
Q771
DTC144TU
C777
0.001
Q772
DTA144EU C772
0.001
R773
100k ULD
R766
2.2kVCC1
1IN2IN3
GND
4
SW1  5SW2  6OUT  7VCC2  8IC761
mPB1509GV C765
0.001 C769
0.1C775
0.001
C764
0.1 C774
0.001
C776
0.001L762
10mHR762
100
C762
0.001 L761
0.47mH
C761
0.001
C778
0.001
C753
2p
Q761
2SC5107 R764
56
L751
27nH R761
47kC750
0.0047
12DS 12PS
12DR
12UL
CNTY DAT
CK
C751
22p12C2
+5
+9
-5V 12DS 12PS
12DR
12UL
CNTY DAT
CK
12C2
+5 2LO 1LO
+9
-5V C763
0.001C752
22p R763
220 R765
1M
ULP
12UL
MP601 L622
47mH
C621
0.1 C622
0.1
R648
5.6kC624
1
C623
0.001 C679
+5
0.1
12DR
C657
56pR652
150
R651
1k C678
0.001
C651
47pC652
20p
C653
68pC654
10p
C655
82pC656
3.5p
W MEASUREMENT CONDITIONS
  MULTIMETER:50k   /V
  OSCLLOSCOPE:20MHz
  Display frequency:1295MHz
  SUPPLY VOLTAGE:13.8V
  modulation at TX:none
3.5 7.3
4.2
3.8
2.11.64.5
7.3 7.8
4.8
0.7
4.90.7
0.35
4.9
4.8
FM         :4.8
SSB/CW:0
FM         :0
SSB/CW:8.8
4.8
2.8
0.7
UNLOCK:4.8180mVpp8.6
4.7
4.71.0
8.4
6.6 7.7
3.6
0.8 1Vpp3.8Vpp
3.0
7.0
1.9
1.4
1.7 4.9
-2.7
-3.3
UNLOCK:4.4 4.8
4.8 3.8V
1.0VFM         :7
SSB/CW:0
7.6
4.2V
0.5V
3.8
0.75 
						

							12 - 8
12-9 UX-910 MAIN UNIT (2)
CHASSIS
J501
[12ANT]
1LO
2LO
CNTY-5V DAT
CK
12UL
12C2 12PS
12DS
12DR
+5
+9
CNTY
+5
+9-5V 1LO
2LO
CK DAT
12C2 12UL 12DR 12DS 12PS
MAIN UNIT (1) MAIN UNIT (2)
DRES12ST
+5
DAT
CK+5
1kR342
2LO
1LO2LO
1LO
+5
BU4094BCFV IC301
816
10QS9QS11Q812Q713Q614Q57Q46Q35Q24Q1
 15OE  3CLK  2D  1STR
0.0047 C302
DTC144EU Q283100 R301
0.0047 C280
0.001 C281
0.001 C304CNTY
12AT12GS 12GM 12M
12S12PR 12DR 12C2
1k R2850.0047 C221470pC223
220p C222RV-145 R224
RV-143 R288 0.22mH
L221
100p C226
120 R222 2.2k R2210.1 C224
47p C225 100 R223
47p C228 3SK241 Q221W223 2.2k R248
100 R226
1.5P C241 56nHL242
56nH L241
100k R2283.5p C242
10k R227 2.2mH L222
WF447B FI241
10
9
8
7
6
5
4
3
  2 1 4p C229
0.001C22710p C240
0.1 C257
1.5p C2443.5p C24310p C247
0.001 C246
15p C245100 R247 mPC2721GV IC241
  8RF1  7RF2  6GND  5IF
4
VCC
3C2BF1BB0.001 C260
0.001 C259
100p C258
0.001
C256
0.1 C255 2.7nHL274
2p C27110k R273
56nHL281 LFSN30N18C1280B FI271
2SC5454 Q2712.5p C273
6.8k R274 150 R272
0.001 C278 470p C277
470p C276 0.001C275
0.001 C274
100 R287
0.0047 C295
0.001 C2930.001 C292 120R283
5.6nH L283
47p C290
47p C289  5.6nHL275NE34018 Q281 LFSN30N18C1280B FI281
2.5p C279
2SC2712 Q282
0.1 C2860.0047 C2873p C288
68 R284 10p C306
47p C305
18nHL289
6.8nH L285 2.5p C3001.5p
RX
C301
 4.7nHL287
3.9nHL2862.5p C299
2p C297
1.5p C298
0.0047 C2940.001 C285 120 R206
100 R281
10 C282
MA8030D2810.001
C28315p C205
10 R282
470p C284 1p C204
22p C203 3p C202
12p C201120 R204
56nHL2731k R201
220 R271 56nH
L244
0.001 C265 1mH L243
10P C266
10p C2640.1 C248
10R246 R+5 RN2425 Q172
0.001 C263 0.001C26110p C262
270 R230 18 R231270 R232
1SV307 D13
0.001 C23210mH L224 10  C169
0.001 C230 1k R229
0.1 C168
IRX922
+5
C166
0.1 C176 10 C164
XP1113 Q301
4 5   1
  2
  30.1 C167 0.1 C165
14V 12S
CK
DAT+5EXC-ELDR25C L311MA2S111 D169 XP4315 Q169   1   2
  3 4
5
61K R168100k R169
DAN222 D167
12REF
GND-5V
GND 12PV
OPB1
12ST
12UL
IFS 12PS PDAT PCK
12DSW311W15 W243
W32W16 W17 W18 W19 W20 W21
W290 W241
W242 W22 W23 W10 W11 W12 W13 W14
CP312
0.001 C3140.001
C311
0.001
C3120.001
C336
0.001
C33710p
C33310p
C334
10p
C335
0.001
C313
0.001
C315
0.001
C317
0.001 C316
TC7W08FIC311
8
7
6
5
  4   3   2   1 DRES
12TP
12M
TXS
RXS GND GNDIFM
14V
1FOR
J311
25
24 1
2
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1CP311
CP15 0.001  C310
MA77 D163
4.7k
R311
0.001 C177
MA77D1642.2k R162
0.001 C162
DTC144EUQ164
+9
12M
12M RXS TXS
1RX9 1TX9
+9XP4315 Q165   1   2   3 4
5
610 C172 2SB1133Q166
2SB1132 Q170 DTA144EU Q167100k R167
470 R1661SS355 D166 2SC2712 Q168 1k R1651TX9
+9
BA09T IC161
0.001 C175
10  C1740.001 C96
10p C9710mH L86
0.001 C173
TA7805F IC1621k R85
0.001 C92
0.001 C93
1SV307 D83270 R242
0.001 C252
470p
C250
18 R243
0.001C251
W202 1k R245270 R244
0.001C267
10p C268 1SV307 D241
1k R181
0.001 C211270 R184
mPC2709T IC201
5326
  4 1 0.5p C182
1P C184
3p C185
10p C213
0.001C212
0.1mH L2041mH L203
10nHL211
39nH L202
39nH L201
0.001 C21010p C206
0.0047 C208
0.001 C207 5p C183
3P C181270R186
0.001 C209
2LO
1LO
56 R205MP701 18 R185
0.0047 C148
10p C150 0.001 C149
mPC2709T IC181
5326
  4 12p C142
1p C143
6.8nHL181
 5.6nHL1822p C145 4.7nHL141
1mH L184 10p C193
0.001 C1921mH L183
10P C186
0.001 C187
0.0047 C188
0.001 C191MP181
B5
470p C132
820 R135
W182 10p C137
0.001 C190 0.001 C138
56nH L101
 56nHL102
1.5p C105
1.5p C104
820 R133
10p C130 56nH L133 270 R106
1SV307 D9
270 R13818 R137 270 R136
0.001 C134 1k R131 6p C124
10P C125
18p C123 4p C122
9p C121
0.001 C114
270 R104
270 R8618 R87
270 R88470p C112820 R103
820 R101
56 R100
10pC91
18p C90
12S 12M +5
1kR163 10k R89
220 R93
0.1 C10039p C86
56p C87
470p C88
150p C89
220p C80330p C85
MA2S111 D168 DAN222D165
10
C1700.001 C171 10k R164
0.001 C1632SA1162 Q163
DTC144EU Q162 +9
1RX9
12S
0.001 C16056 R84
3.9k R312
RN2425 Q171
DTC144EU Q1611mH L161
MA77 D161
MA77 D1622.2k R161
0.001 C161T+5 HVR
RV-143R83 CP32
to IC-910
PA unit
to IC-910
MAIN unit
J2CP31
MA77 D8147p C98
0.0047 C24
470pC32
0.001 C318
0.001 C82
2.2k R8110mH L81
0.1 C81
0.0047 C8410p C83
10p C23
+5
1TX9HVR-5V
T+5
+9
+5HVR
-5V
T+5
+9
1TX9
ITX9-5V T+5
+9
+5
IRX9
+9
+5 +9
-5V
+547nHL5
0.1 C99
0.1 C106 100 R92100 R91
18kR90
2SC2712 Q81 47p C325
10p C324
0.47mH L83
0.56mH L8210p C95
0.001C94100p C44
5.6 R102
617DB-1010L85
617DB-1010L84
HSB88WSD82 MP81
22nHL122 50nH L32
mPC2709T IC111
5 3 26
4   11mH L111 1mH L112
0.001 C111
0.001 C103 27nH L121
3.5p C102 3.5p C101
18 R105
WF447B FI101
0
19 8 7 6 5 4 32   1
0.75p C155 5.6nH L135 56nHL134
56 R139
2p C133
mPC8163TB-E3 IC131
4
GND
5
VCC
6
RFO
  1IFI  2GND  3LOIMA8030 D130
5.6 R134 56nHL23
100p C49
470pC141
470p C135 470p C136
W142 DAN222 D32
LFSN30N18C1280B FI141 0.1 C140
82 R130
1FOR+9
+9
HVR
12PR
12PV
3.3k R75
0.001C74
0.5P C146
1P C144
 5.6nHL142470p C147
mPC1678G IC141
8
VCC
7
GND
6
GND
5
OUT
  4GND  3GND  2GND  1IN0.001 C79
3.3k R77
56nH L14456 R1465.6 R145
820 R144
56nHL143
470p C151 0.1  C77RX 100 R621812CS.122XKBCL63
3.3  R73
470 R74
6.8k R76 0.0047 C71
0.001 C70
47p C69
RX
0.1 C65
2SC2712 Q74 1SS385 D504
RV-150 R61
56nHL5247p C6056nHL53
HSU88 D502
0.001 C76 2SD1801 Q71
330 R72
3.3k R71
2SC2712 Q73 DTC144EU Q72
 39nHL7110p C73
0.001 C720.001 C67
470pC66
ICLRX
BA4558F IC31B7
  5   622k R53 10k R52
10k R51 1k R46
1k R54W51W63
1SS355D51
100 R41
0.001 C45
ARK115 RL51
0.001C53
0.001C58
0.001C131 1k R40
33k R36
RV-148 R37 47k  R35 47k R34
33k R38BA4558FIC31A
8
41
  3   2
0.47 C47 470 R43 470k R39
56nH
-5VL22 100 R42 0.001
1TX9 C48
0.001 C50 0.001 C43 0.001 C42
0.001 C41 1IC
2IC0.5p C28
470
C332
470C31ECR-JA003A11WC30
10nHL31
10p C331
100p C330
47p C329 10pC328100p C327
47p C34
10p C33
0.001 C25
100 C36
0.0047 C390.001 C3810p C37
10 C40
100 C56
0.0047C351k R33 1k R32
12TP +5
10k R45NTCCM16084lH R44
0.001 C46 RV-148 R132p C26
5p C320 4p C8
2.7k R12
0.15 R31 47p C14
10p C132SK2855 Q38
220 R11
100pC111k R14
1p C32p C7 7p C18
4P C2
150 R8
68
R18
68 R1968
R17
10nHL2
56 R4 5.6 R3
820 R2
10P C20
47p C19
47p
C510p
C4100p C1647p C154.7kR6
1.5k R5220 R7
4p C17 W5
10p
C6
LFSN30N18C1280B FI1
470p C16p C9
2SK2854 Q36 47nHL12
100pC323CP322
CP321
10p C22
7pC1247p C322
10p C321 107nHL1110 R16
10 R15
6p C21
EP12EP11EP10
47p C326M57762-02 IC21
  6 7
5 4 3 2 1
IN
VCC1
VBB
VCC2
OUT
RX_TX
TX1p C55CP401RV-150 R67
47p C5933 R65HSU88D503
0.001 C61
56nHL51
W52
470p C63
W MEASUREMENT CONDITIONS
  MULTIMETER:50k   /V
  OSCLLOSCOPE:20MHz
  Display frequency:1295MHz
  SUPPLY VOLTAGE:13.8V
  modulation at TX:none
TX:0
RX:3.4TX:4.8
RX:0 TX:9.0
RX:0 TX:2.3
RX:3.0 TX:9.0
RX:0
TX:4.8
RX:0TX:3.2
RX:0P. AMP ON
RX:4.3
P. AMP ON
RX:4.9
0.1 8.8
0 0
P. AMP ON
RX:13.8
4.8
13.8
13.8
13.8
TX:8.3
RX:0
TX:1.5
RX:0
TX:6.9
RX:0
TX:2.3
RX:0
13.8
TX:4.4
RX:3.0TX:3.0
RX:0
TX:2.3
RX:0
TX:0
RX:3.8
TX:0
RX:3.0TX:7.0
RX:0
P. AMP ON
RX:13.0V
-4.7
4.8
TX:0
RX:2.9 TX:4.9
RX:0.3
TX:4.7
RX:0
TX:0
RX:4.7
TX:4.8
RX:0.8
TX:0
RX:8.4
TX:0
RX:0.63.9
9.05.0
TX:0
RX:9.0 TX:8.5
RX:8.3 TX:4.9
RX:0TX:12.2
RX:13.0TX:9.0
RX:0
13.04.1
1.2G selected:0 1.2G selected:4.2
1.2G (SUB):4.9
other          :0
1.2G (MAIN):4.9
other          :0
TX:0
RX:4.9
TX:8.5
RX:0
0TX:0
RX:0.8
TX:0
RX:ATT ON:1.0
            OFF:0.7
ATT ON:3.3
      OFF:0 ATT ON:4.7
      OFF:0
TX:0
RX:ATT ON:2.6
            OFF:0.7 
						

							Communication Equipment
Himmelgeister Str. 100, D-40225 Düsseldorf, Germany
Phone : 0211 346047 Fax : 0211 333639
URL : http://www.icomeurope.com
Unit 9, Sea St., Herne Bay, Kent, CT6 8LD, U.K.
Phone : 01227 741741 Fax : 01227 741742
URL : http://www.icomuk.co.uk
Zac de la Plaine, Rue Brindejonc des Moulinais
BP 5804, 31505 Toulouse Cedex, France
Phone : 561 36 03 03 Fax : 561 36 03 00
URL : http://www.icom-france.com Crta. de Gracia a Manresa Km. 14,750
08190 Sant Cugat del Valles Barcelona, SPAIN
Phone : (
93)
 590 26 70 Fax : (
93)
 589 04 46
URL : http://www.icomspain.com2380 116th Avenue N.E., Bellevue, WA 98004, U.S.A.
Phone : (
425)
 454-8155 Fax : (
425)
 454-1509
URL : http://www.icomamerica.com
Phone : (
425)
 454-7619
Glenwood Centre #150-6165 
Highway 17 Delta, B.C., V4K 5B8, Canada
Phone : (
604)
 952-4266 Fax : (
604)
 952-0090
URL : http://www.icomcanada.com
A.B.N. 88 006 092 575
290-294 Albert Street, Brunswick, Victoria, 3056, Australia
Phone : 03 9387 0666 Fax : 03 9387 0022
URL : http://www.icom.net.au 
146A Harris Road, East Tamaki,
Auckland, New Zealand
Phone : 09 274 4062 Fax : 09 274 4708
URL : http://www.icom.co.nz 6F No. 68, Sec. 1 Cheng-Teh Road, Taipei, Taiwan, R.O.C.
Phone : (02) 2559 1899 Fax : (02) 2559 1874
1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan
Phone :  06 6793 5302
Fax :  06 6793 0013
URL :  http://www.icom.co.jp/world/index.html 
Icom America Inc.Icom (Europe) GmbH
Asia Icom Inc. Icom Spain S.L
Icom (UK) Ltd.
Icom France S.a Icom Canada
Icom (Australia) Pty. Ltd.
Icom New Zealand 
						

							1-1-32, Kamiminami, Hirano-ku Osaka 547-0003, Japan
S-13714HZ-C1
© 2001 Icom Inc.