Icom ID-880H Service Manual page 41

Q110:UNR9214
VCO_SHIFT SHIFT
VCO8
I C42:TC7S66
Q121:UNR9213
VHF VCO
A AMOD FILTER PLLS W
SW
LOOP
MAIN UNIT
FIL
Q109:
UNR9213
MOD
VCO8
I C17:TC7S66
Q122:UNR9213
PLLS W
D 81: 5VS
UNLOCK MA2S1110G
PLLCK IC14:
PLLDATA MB15A02
PLLSTB
PLL VCO
IC SELECT
I C1018:TC7S66 Q 61:2SA1586
Q 62:2SC4116
D86:DA221
5VS
MMUTE
IC9:
TC7S66
MOD VCO_MOD MOD MUT E
MUTE
15.3MHz
I C67:TC7S66 X5:CR-875 Q64:
REF_MOD U NR9213
MOD TCXO
MOD_DA MUTE
IC53:
LMV321 5VS
AM P
R5
D/A
DA_CK IC8:
X3
DA_DATA M62363FP
D A2_STB
Q52:2SC4738
AF_FIL_VOL IC49:1/2
LMV358I
L5V
D162 8V AFFIL_SEL
DET
B
SVC383
Q47:XP6501
AFO Q50:UNR9213
C
AF AF
FIL2 FIL1
D
DAFOUT
E
F
G
Q 111:2SC5231A
D 145,D146,D147
HVC327C
D148:HSC277 D160,D175
Q113:2SC5231A
:HSC277
VCO
BUFF
SW
MMUT E
MUT E
140_R5
Q65:XP4601
Q68:XP4601
5VS
VVCO_SEL
440_R5
FILTER VCO
SW SELECT UVCO_SEL
AMP
IC45:
UPC2709
LOOP 800_R5
D102
FIL
:HSC277
VCO
SW
UHF VCO
BUFF
Q76:
2SC5008
Q 73:2SC5231A D97 :
D91:HVC375B MA2S1110G
BUFF
D92:HVC350B
D87:HVC327C
Q 1015:2SC5231A
D176:HSC277
300_R5
450kHz
FI2 FI1
LT450EW LT450HW
CERAMIC CERAMIC
BPF BPF
5V AMC Q59:UNR9213
5VS Q53:UNR9113
Q41: Q54:UNR9213
XP4601 Q56:UNR9113
W N_SEL
AM D82,D83,D84,D85
WIDE/NARROW
DTCS_IN CTCSS
SW MA2S1110G
SELECTOR
FIL R5
Q 46:UNR9114
5VS
IC11: IC13:
TC7W53 TC7W5 3
DET_MUTE
DIGI/AN DET OUT
L_DA_SEL SELECT SELECT
IF IC
Q1014:2SC1586
DET
NOISE
AM P
2ndLO 45. 9MHz
R5
SQL
SQL
AM P
IC65:LMV321
Q1016:UNR9213
RSSI
Q 15:2SA1362
Q 12:UNR9213
8V
VT8 VT8 VT8
VTX_C REG D29
MA2S1110G
VHFYGR
LO SW
LPF ATT
LIMITER
D155:1SV308
8V
Q 17:2SA1362
Q 13:UNR9213
UTX_C UT8 UT8
REG Q22 D25
2SC5085 MA2S1110G
PRE
LIMITER
DRIVE
UT8
D103:
1SV308
LO SW UHFYGR
HPF ATT
D 170
HSC277
LO SW 140_LO
ATT LPF
D 179
1SV308
LO SW 440_LO
ATT LPF
800_R5
D 101
HSC277
UHF_LO
LO SW
ATT HPF LPF
LO SW
D181:HSC277
800_R5
D104
HSC277 D180:1SV308
LO SW RF
ATT LPF LO SW
MUT E
Q 79:UNR9213
300_R5
R5
D88:DA221 D1009:MA742 46.35MHz
IF XTAL
LIMIT LIMIT
X2 AM P BPF
Q66: FI6:FL-409
2SC4406
IC15:
NJM2552
AGC RFAGC
AGC
AMC AMRSSI
Q 44:2SC4738
Q1013:UNR9213
D1 to D3,D178:MA2S7280
HV
D59:L709CE
Q25 IC3 D39,D47,D1005 D68,D75:HVU131
MT3S20P S-AV32 MA742 D77:HSC277
DRIVE PW R SWR TX/RX
LPF
AM P AM P DET SW
HV ATT
ATT
Q26 IC2 D 42,D52,D1006
MT3S20P S-AU82L MA742
PWR SWR TX/RX
DRIVE
LPF
AM P AM P DET SW
D62:L709CE
D30,D53,D61,D177
D 31:DAN222 1SV308
PL_U 8V
I C4:NJM3404 A
Q31:UNR9113
Q36:UNR9113
TEMP
APC
CTRL
TX_MUTE CTRL TX_MUT E
Q 1011,Q1012:
2SA1586
PCON_U PCON_V
R5 140_R5
D41,D44,D60
HVC365
X V_MI
BPF
Q124
3SK324
140_LO BPF3 BPF2 BPF1
R5 400_R5
D12:HVC375B
D14,D23:HVC350B
U_MIX
BPF
Q125
3SK324
440_LO
BPF3 BPF2 BPF1
D172:DAN222
300_R5
800_R5
SW
RFAGCR
D45,D51:EC2C01C
UHF_MIX
RX RF
SW BPF
SW AM P
I C64:UPC2757
D95:HSC277
D36:1SV308 Q 34:2SC5006
BPF3 BPF2
UHF_LO
D18,D20;1SV305
RX
BPF
SW
D9:1SV308
BPF2 BPF3
9 - 2
LPF LPF
HPF
UHFLPF
VHFLPF
140_R5
RFAGC
D78,D79
MA2S1110G
RF
LIMITER
BPF
AM P
Q33:3SK318
<- 118-174 MHz
400_R5
RFAGC
D 13:HVC350B
RF RX
BPF
AM P SW
Q19:3SK324 D16:1SV308
<- 420-550 MHz
BPF1
300_R5
FAGC
D57:EC2C01C
D58:HVC350B
RF RX
BPF
AM P SW
Q 35:2SC5008 D56:1SV308
<- 230-420 MHz
BPF1
800_R5
RFAGC
<- 810-999 MHz
RF
HPF
AM P
Q28:3SK324