Icom ID-800H Service Manual page 53

MAIN UNIT(2)
BUS LINE1
HV_I
HV
8V
5VS_W
5VS
R262
1.5k
MMUTE
Q4
2SC4116
Q6
UMG9N
V_VCO 1 5
2
U_VCO
3 4
Q8
XP1115
1 5
2
3 4
MAIN
UNIT
8V
(1)
C: 4.7V
R17
22 EP522
C28
47p
D526 D2
1SS400 1SS400
UNLK
PLLCK
PLLDATA
R1 100k
R2 10k
1 4
VCONT VCC
2 3
GND OUT
C9
X1 0.001
CR-784
C: 4.7V
R19
22 EP523
C29
47p
D3
D527
1SS400
1SS400
PLLSTB2
BUS LINE2
11 - 2
HV_I
HV
8V
5VS_W
5VS
J1
V_LV V_LV
V_VCO8 V_VCO8
SHIFT SHIFT 6.9V
U_LV U_LV
TX: 0V R4 C12
GND GND
RX: 3.83V 100k 0.5p
MMUTE MMUTE
MOD MOD
GND GND
TX: 0V
U_VCO8 U_VCO8
RX: 4.83V
L1
8V 8V
1.0µ
Q1
UNR9213J
7.88V
0V
8V
Q100
C100 R103 C103 C106
UNR9213J
0.1 100k 0.3p 4p
L100
0.47µ
VCO BOARD
R62 R77
IC519
D4
10k 3.9k
DA221 TC4W53FU
D5
DA221
8 1
7 2
IC1
MB15A02PFV-1 6 3
1 16
OSCIN B
2 15 5 4
Q9
OSCOUT P
2SA1586
3 14
VP FOUT
4 13
VCC NC
5 12
DO FC
R89
6 11
GND LE ERJ3GE-JPW
7 10
LD DATA
8 9
FIN CLOCK
R63
27k
Q10
2SC4116
R54 10k
R60 10k
R64 10k
U_LV
5VS_W
REF_CON
8V
l
C22
L68
1p 10u
m
D532 R261
1SS357 47k
IC2
MB15A02PFV-1
R90
1 16
OSCIN B ERJ3GE-JPW
2 15
OSCOUT P
3 14
VP FOUT
4 13
VCC NC
5 12
DO FC
6 11
GND LE
7 10
LD DATA
8 9
FIN CLOCK
Q11
UNR9213J
R758
10k
R55 10k
R61 10k
R66 10k
HV_I
HV
8V
5VS_W
5VS
C17
0.001
C16
12p
C15 C23 R17
Q3
0.001 22p 100
2SC5231
Q2
C20 R13
UNR921NJ
1p 120
Q4
2SC5231
R114
100
C119 R115
C117 8p 1
4p
Q103
2SC5231
R54
C114 L50 L51
4p 2.2k C54 47p 18n
56n
Q101
2SC5231
C55
3p
Q102
2SC5231
C110
0.75p
D50
R50 C52
MA2S077
22 3p
Q50
2SC4403
D51
MA2S077
k
C: 7.9V
Q22 R130
2.2k
2SA1362
Q19
R124
UNR9213J
1k
R711 C118 R133 C125 L4
ERJ3GE-JPW 0.001 39 0.001 18n
R712
ERJ3GE-JPW
L22 L29
56n 56n
D27
C199
MA742
0.001
Q23
2SA1362 EP545
8V
R131
2.2k
R125
Q521
1k
2SK880 UTXC
C119 R135 C129
Q20 15p 15 10p
UNR9213J
Explanatory notes
VOLTAGE LINE
L23
TX LINE
10n
RX LINE
L30
22n
Q520 COMMON LINE
2SK880
D28
C200
MA742
0.001
HV_I
HV
8V
5VS_W
5VS
D5 L6
TX: 4.25V
1SV308 56n
RX: 0V
C28 R22 D6 R24 R25 L7 L8 TX: 0.16V
8p 1 MA2S077 1 1 39n 39n RX: 1.75V
C27
4p
Q5
2SC5231
TX: 0V
RX: 0V
D103 L104
1SV308 18n
TX: 0V
RX: 0V
R124
4.7k
D104 R117 R119 L105 L106 D106
MA2S077 12 12 22n 10n 1SV308
Q105
TX: 0V
UNR9213J
RX: 0V
C128
100p
C127
C129 C132 L110 D107
2p 1p 1.5p 10n W1 W2
MA2S077
D105
MA2S077
Q104
2SC5231
C123
2p
RX: 0V
TX: 7.8V
IC13
S-AV32
R645 R174
1 2 3 4
15 15
C130 C150
R643
10p 22p
68
Q30 Q33
2SC3357 2SC4703
C259 D45 C279 L46 L45
0.001 UM9401F 0.001 47n 56n
D33
C240
MA742
0.001
IC14
S-AU82L
C131 C136 C151 L15 R176
1 2 3 4
3p 3p 7p 15n 18
L9
10n
Q31
Q34
2SC5085
2SC3357
C246 D40 C284 C288 C292 L51 L52 L56
470p UM9401F 12p 7p 9p 10n 22n 15n
D34
C241
MA742
0.001
BUS LINE1
HV_I
8V
5VS_W
5VS
J2
V_TXLO V_TXLO
V_RXLO V_RXLO
GND GND
U_TXLO U_TXLO
U_RXLO U_RXLO
GND GND
UR5 UR5
800R5 800R5
GND GND
PLLOUT PLLOUT
MAIN
UNIT
R728 (3)
ERJ3GE-JPW
HV
n
R703
ERJ3GE-JPW
L49
47n
o
p
MP4
HV
3 2 1
q
BUS LINE2