Icom ID-800H Service Manual page 54

MAIN UNIT(3)
BUS LINE1
HV_I
8V
5VS_W
5VS
C6
5p
m
C20 L1 L66 C41 L67
Q2
0.001 47n 0.82µ 18p 0.22µ
2SC4116
R4
100k
Q3
XP4601
3 4
2 5
1 6
R10
R29 R43
1.2k
100k 10k
DTCS_IN
WXALT
R707 R708
ERJ3GE-JPW ERJ3GE-JPW
C21 C31 R50 C49
0.0018 0.015 680k 0.033
6 5 4
1 2 3
AFO
Q518
UNR9213J
MAIN
UNIT
(2)
8V
5VS_W
DTCS
R11 R12 R777
C30
100k
3.9k 39k
10
DTCS_SEL
Q1
UNR9213J
VRSTB
h
i
EP12
R38
R15
100k
220k
R39
R40 R41
100k 150k 220k
FM: 0.5mV
DV: 4.8V
DMOD
Q517
UMG9N
D_AS 1 5
2
R763
15k
3 4
BUS LINE2
HV_I
5VS_W
C48 C58
1.5p 1p EP526
Explanatory notes
Q7
2SC4215
VOLTAGE LINE
TX LINE
RX LINE
R49 R51 R56
68k 68k 68k
R53 R52
100k 10k
IC516
R57 R67 R74 SN74AHC2G53HDCT
39k 22k 12k
1 8
COM VCC
2 7
INH Y0
3 6
GND Y1
4 5
GND A
IC4
M62364FP
1 24
VIN1 VIN8
2 23
VOUT1 VOUT8
3 22
R779
VOUT2 VOUT7
4 21 100k
VIN2 VIN7
5 20
VDD GND
6 19 5VS_W
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
R772 ERJ3GE-JPW
IC515
SN74AHC2G53HDCT
FM: 4.8V
8
DV: 0.2V VCC
7
Y0
R58
6
68k Y1
5
A
IC3
NJM12902V
1 14
IC517
SN74AHC2G53HDCT
2 13
8
- + + -
VCC
C59
3 12
390p
7
Y0
4 11
6
Y1
5 10
5
R88
A
220k
6 9
- + + -
7 8
R109 C92
180k 0.01
6 5 4 6 5 4
1 2 3 1 2 3
R73 R87
1.5k 470k
C94
0.001
C71 R92 R95 C82
470p 33k 10k 220p
C83
220p
C95
8 7 6 5
0.1
R111
1 2 3 4
470
R778 R771
100k
220k
C723 R770
3 5 10
150k IC520
- 4 3 5
TC7S66FU
1 - 4
+ 1
2 + 1 5
2
R780
IC522 100k
IC521 2
TA75S01F
TA75S01F
3 4
5VS_W
C72 R94
1 18k
1 l
COM
2
INH
3
GND
4
GND
C76
10
1 MOD
COM
IC11 M62352GP
TX_MUTE
2 EP546
INH 1 20
VSS GND
TUNE_V1 2 19
3 AO3 AO2
GND TUNE_V2 3 18
AO4 AO1
TUNE_V3 4 17 DA_DATA
4 AO5 DI
GND TUNE_U 5 16 DA_CK
AO6 CLK
ATT 6 15 DA_STB
AO7 LD
BSHIFT 7 14
AO8 DO
PCON_V 8 13 REF_CON
AO9 AO12
PCON_U 9 12
AO10 AO11
10 11
VDD VCC
5VS_W
HV_I
5VS_W
IC9 FI1 IC10
SN74AHC2G53HDCT CFWS450HT SN74AHC2G53HDCT
1 8 8 1
COM VCC O I VCC COM
2 7 7 2
INH Y0 Y0 INH
3 6 FI2 6 3
GND Y1 Y1 GND
CFWM450E
4 5 5 4
GND A I O A GND
R120 R119
1k 47
Q24
UNR9114J
TX: 74.5mV
RX: 4.7V
Q25
UNR911NJ
AM: 4.8V
FM: 6.1mV
Q21 DV: 6.1mV
C110 R123 R129
UNR9213J
0.1 3.3k 22k
W: 4.8V
N: 6.0mV
p
8V
D531
DAN222
R612 1.8k
R727
ERJ3GE-JPW
C577 2.2
C580 0.001
C237 C297
0.047 0.047
R225 R212 R256 R252
10k 220k 220k 10k
IC15
NJM3404AV
1 8
R629 R226 R255
330k 33k 33k
2 7
- +
3 6
Q42
+ -
UNR9113J
4 5
R234 R254
180k 180k
11 - 3
BUS LINE1
HV_I
HV_I
5VS_W
5VS_W
v
R5CTRL
AM
WN_SEL
MAIN
UNIT
(4)
Q45
UNR9113J
BUS LINE2
BUS LINE3