Icom ID-880H Service Manual page 45

MAIN UNIT (3/7)
FANHV
HV
8V
5VS
5V
MOD_DA
MOD_DA
VTX_C
VTX_C
UTX_C
UTX_C
C;4. 9
DA_STB
DA_STB
DA_CK
DA_CK
DA_DATA
DA_DATA
AF_FIL_VOL
DA2_STB
AMOD
VVCO_SEL
VVCO_SEL
UVCO_SEL
UVCO_SEL
MMUT E
MMUT E
VCO_SHIFT
VCO_SHIFT
PLLDATA R5C
PLLDATA
PLLCK Q43
PLLCK
UNR9114G0
PLLSTB
PLLSTB
PLLSW AMC
PLLSW
Q46
UNLOCK
UNLOCK C;7. 9 UNR9114G0
RX;3.7
R256
6.8K
R5C
R5C
AM C
C355
AMC C358
0.0039 0.0018
4
5
6
W N_SEL
W N_SEL
DET_MUTE
DET_MUTE
L_DA_SEL
L_DA_SEL
AFFIL_SEL
AFFIL_SEL
100K
R253
3
4
5
2
1 6
100K
R246 R265
DTCS_IN
10K
DAFOUT
DET
AFO
SQL
RSSI
AMRSSI
5V
LMV321IDCK
R810 5
IC53
1
4
100K
68K
3
2
R808
R807
220K
IC8
1 24
VIN1 VIN8
2 23
VOUT1 VOUT8
3 22
VOUT2 VOUT7
4 21
VIN2 VIN7
5 20
VDD GND
6 19
LD RESET
7 18
CLK VDAREF
8 17
DI DO
9 16
VIN3 VIN6
10 15
VOUT3 VOUT6
11 14
VOUT4 VOUT5
12 13
VIN4 VIN5
M62363FP
RX:4.4
RX(AM):4.4
RX;0.8
IC11
R283 R288
C367 R277
1 8
COM VCC
3 2 7
0.033 39K 22K 12K INH CH0
3 6
VEE CH1
2 4 5
GND A
1
TC7W53FU
Q50
UNR9213G0
RX;1.9
RX;1.2
IC13
0
1 8
R276 R278 R285 COM VCC
2 7
INH CH0
R293
3 6
68K 68K 68K
VEE CH1
4 5
GND A
TC7W53FU
R920 R907
1k 100K
IC65
5
1
4
R1096 Q1016
3
2 100K
UNR9213G0
LMV321IDCK
TX:4. 9
PLLCK
To MAIN UNIT
RX:0. 0
PLLDATA
(6/7)
PLLSTB
C;4. 9
C;7. 9
To MAIN UNIT
VCO_SHIFT
(6/7)
C466
VCO_MOD
2.2 MSVA
Q1014
2SA1586
C1094
0.01
R368
C1099
REF_MOD
1
0
C1102
1
To MAIN UNIT
UVCO_SEL
(6/7)
VVCO_SEL
R305
47 RX;3. 5
10K R342
Q56
UNR9113G0
Q53
FI1
UNR9113G0
LT450HW
MA2S1110G C932 C930 D84 0.1
I O
D82 0.1 0.1 MA2S1110G C437
Q54 MA2S1110G
C933 C931 D85
UNR9213G0
I O
0.1
D83 0.1 FI2 MA2S1110G
WIDE :0.0 LT450EW
NARROW:4. 9
R351
JTBM450CX24
X2 100
UNR9213G0
Q59
1.5K
C442
R345
0.1
WIDE :4.7
NARROW:0.0
0.01
C402
R302 R308
0
470
R307 R317
C418
0 4.7K 470P
C419
470P
R303
22K
R301
100
R919
R440
1k
AGC
10
FM:4.9
AM:0. 0
VHFYGR
GND
300_R5
140_R5
800_R5
440_R5
440_LO
VCO8 UHF_L O
GND 5VS
MMUT E UT8
UHFYGR
MOD 140_LO
REFCON
R5C
C970
2ndLo
0.001
Q124
3SK324
REFMOD
PLLSW
UNLOCK
R5
Q125
3SK324
C977
0.001
TX;0. 0
RX;4. 7
HSC277TRF
R897
0.39U 0.001 L168
L169 C960 D95 0.33U
100
R896 C961
330 27P
C965
10P
C966
0.01
C967
0.001
0.001
C470 C467
0.001
FL-409
R439
Q66 C523
2SC4406 OUT
2
0.01 220 GND
4
R461
Q44
Q1013 2SC4738
10 C1072
UNR9213G0 0.1
10 - 4
FANHV
HV
8V
5V
VHFYGR
300_R5
VTX_C
VTX_C
UTX_C
140_R5 UTX_C
800_R5
440_R5
5VS
UT8
UHFYGR
140_R5
DA_STB
DA_STB
DA_CK
DA_CK
DA_DATA
DA_DATA
V_MIX
R5
440_R5
U_MI X
5VS
5V S
300_R5
800_R5
RFAGC
RFAGC
140_R5
140_R5
UPC2757TB
C964
UHF_MIX
IFO RF I
6 1
0.001
VCC GND
5 2
PS LO
4 3
IC64
300_R5
300_R5
R5
R5
440_R5
440_R5
800_R5
800_R5
GND
3
IN
1
FI6
RFAGC
*; Refer to "PARTS LIST."