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

9 - 5
9-11 DISPLAY BOARD• TOP VIEW
8 5
1 4
18 16 918 16 918 16 9 

9 - 6
• BOTTOM VIEW (DISPLAY BOARD)
14 5 81
5 4
8
1 4
8 5
1 100
81
80
51 50 31 30
1 1008180
51
50
31 301
816
9
GND
1
to MAIN
SENSOR J4
4
A
B
+5V
MSPO
J14
7 1
to MAIN unit 
J1251, J1201
SSPO
PHG
14V
HV
MIC
MICE
to FANGND
J12
3 1
NC
FANV
+5V J2
1to VR-A board J1
5MSVR
NC
NCMAVRGND2
6
PHIN J5
SSPO
MSPO
GNDPHGGND2
6 1to JACK board J2
5
MIC
J61 to MIC board J2
9
GND
PTT
MIUD
NCMICE
2 10
AFOMSQLS+9VGND
GND
J919to PLL unit J1
1
20 2
PDAT
43DT
14UL
GNDNC
NC
14V
+9V
-5V
PCK14DTPST443ULGNDBFST14VNCNCGND
INTS...

9 - 7
9-12 PA UNIT• TOP VIEW
14
8
5
1
3 6
4156
1
3 6
4
SPE
SP J50
to MAIN unit J1853SPE
SP J51 1
2
2
1 to SP1DRVI
DRVI
GND
GND
J93114
to DRV board
GND
GND
DRVO
DRVO
J93214
to DRV board
V-C1
GND
V-C2 J651
1
V-A2
GND
V-A1 J652
3
to 
VARISTOR-A
boardto 
VARISTOR-C
boardto 
VARISTOR-B
board
V-B1
GND
V-B2 J653
1
3 13
14V
UTU1
UPRI
VUMS
UATT
POWS
REF
NC2 J39
1 15
2 16
to MAIN unit J1351
14V5VUT9VUR9VVUT9FOR43PVGND
VUTP J504
15
1 16
2 to MAIN unit J130114PV
VT9V
UR9V
UTU2
VPRI
VTU2
ICH
   
VTU1GNDHVVAT...

9 - 8
• BOTTOM VIEW (PA UNIT)
1
3
4 6
1 34
6 

9 - 9
9-13 PLL UNIT• TOP VIEW
R325
1 25
75 44 3412 22 1 8
16 9
33 23
1 1151
100 7626 50
1 4
8 5 1 25
75 33 23
1 11 22 12
34 4451
100 7626 50
1 4
8 5
14 85
GND
PDAT
43DT
14UL
NC
NC
NC
14V
+9V
-5V
PCK14DTPST443ULNCBFST14VNCNCGND
1 2
J6011
19 2to DISPLAY board J9
to MAIN unit J501
to MAIN unit J1051
12
J701
to PA unit J503J120
GND
BFOM
BFOS
GND
144M 1Lo P251
to PA unit J240
430M 1Lo P421
to PA unit J40
430M 2Lo P551
from UX-910 J312
30.2 P312 

9 - 10
• BOTTOM VIEW (PLL UNIT)
R341
MP11 

9 - 11
9-14 MAIN UNIT• TOP VIEW
1 18 16 9
1 10
20
18 16 9118 1 8
16 9 1 8
16 9
16 9
18 16 9
8 1
18 16 98
169
1 1 8
169
1 4
8 5
1
16 91 812
24 13 18 16 9 16 9
1 18 16 9
18 16 9
8
1 4
8 5
1
1 8
169714
8
8
1 18 16 918 16 91
12
REMOTE
ACC1DATA1DATA2
KEYMAIN SPSUB SP
MICE
MIC
J12011 2 to DISPLAY 
board J14
NC
NC
GND
AFSJ1761
41
to UT-106
INTS
TXS
SCON
MDAT
9V
AVXL
5V
PCK
OPB1
12PS
12DS
12UL
12ST
12PV
GND J1101
29
130
2 to DISPLAY 
board J7
GNDINTMRXSMCKNCETONVOXLNCPDATFORLALCL43PV14PVPOWSTEMP
GND
14V
NC
DRES...

9 - 12
• BOTTOM VIEW (MAIN UNIT)
14 85 1 71
1 12 81471
8147 1 5
106
1 5
10
148
17
71
8
8 14
7 114 61
1 4
8 5
24 13
7
14 8
14 85
148 

9 - 13
9-15 UX-910 MAIN UNIT• TOP VIEW
IFM 25J311
to IC-910 MAIN
unit J2 NC
14V
GND
TXS
12TP
12PV-5V
PDAT
12PS
12UL
GND
IFS 1
GND 2414VNCDRESRXS1FOROPB1PCK12ST12DS12REFGND 2
5
84
1 1 8
169
1 4
8 5
1 1
4811 5
106
48
5
5
4
8
5 1
100
76 26
5025
75 51
1 3
6 4
1 4
8 5 4
1
5
5
84
1
1 3
6 4
8
14
8 5
12 ANT
to IC-910 PLL unit J541
SCLKP312
W31
Chassis J1to IC-910
PA unit 

9 - 14
• BOTTOM VIEW (UX-910 MAIN UNIT)
1 4
8 5