Icom IC-706MKIIG Service Manual page 72

• MAIN UNIT
MAIN (4)
HV
5VL
D2171 R2173
MA2S111 33k
CIV
R2175
18k
Q2172
2SC4081
CIVE
R2167 R2164
10k 33k
HV
R2150
470
DSPI
R2149
DASH 1k
DOT
UL
D2144
MA2S111
R2152
47k
0VDV
PWK
POWS
D2143
5VL DA221
SQLS
R2133
1k
KEY
STRT
Q2131
R2134
DTC114EE
1k D2132
DA221
D2133
DAN222
5
4
3
J2061
Optional
unit
SPBK
MCK
MDT
MSST
SPCH
COMPLETE VIEW
H5V
HV
5VL
R2172
6.8k
5.0 V
Q2171
2SA1576
67 nS
IC2122c
3 5
H5VL
IC2122b
2 6
R2161
10k
D2161 R2162
MA2S111 4.7k
IC2161
S-80942ANMP-DD6
1
RES
X2161
1 5 2
OUT CO CR-636 XTAL
2 3
VDD EXTAL
3 4 4
VSS NC MD1
5
R2165 MD0
R2166
6
100
100 NMT
7
STBY/FVPP
8
VCC
9
SCK0/P52
10
RXD0/P51
11
TXD0/P50
R2147
12
1k VSS
DASK 13
WAIT/SDA/P97
DOTK 14
P96
UNLK 15
AS/P95
16
WB/P94
17
BD/P93
D2141 18
R2144 1k IRQ0/P92
DA221
19
IRQ1/EIOW/P91
20
ADTRG/IRQ2/ECS2
R2142
1k
D2142
DA221
Q2141
DTC114EE
SQSS
TKEY
IC2121
TCON X25650S8I-2.5
CS VCC
D2131
SO HOLD
DA221
WP SCK
VSS SI
ATST
AHST
1
2
IC2131
TC4S81F
ATOT
8V
R2003 1k
R2002 1k
SNDS
R2001 W2001
Q2001 220
DTA114EE
R2011 100
R2012 1k
R2013 1k
D2001
R2014 1k
DA221
R2015 1k
R2016 1k
R2017 1k
R2018 1k
R2004
R2019 1k
47k
D2002
DA221
D2025
R2005
D2026
47k
D2027
D2028
MPXB D2029
MPXA D2030
D2031
60
P14/A4
59
P15/A5
58
P16/A6
57
P17/A7
56
VSS
55
P20/A8
54
P21/A9
53
P22/A10
52
P23/A11
51
IC2001 P24/A12
50
HD6433337YA56F P25/A13
49
P26/A14
48
P27/A15
47
VCC
46
P47/PW1
45
P46/PW0
44
P45/TMRI1/HIRQ1
43
P44/TMO1/HIRQ1
42
P43/TMCI1/HIROQ1
41
P42/TMRI0
CP2121
CP2061
R2072 1k
R2074 1k
R2081 4.7k
R2124
8
100k
1 7
R2084 4.7k
4
IC2122a
TC7W04FU
H5V
HV
14V
8V
5VL
LRXD
LTXD
RXS
TXS
KDS
SNDSR
FMST
PR4S
PR3S
PR2S
PR1S
D96S
IC2221
ATTS
BU4094BCFV
NBS
AGFS
MA2S111 [ESP]
MA2S111 [FRA]
MA2S111 [EUR],[ESP]
MA2S111
MA2S111 [ESP]
MA2S111
MA2S111
IC2222
BU4094BCFV
R2041 1k COMS
R2042 1k
SDSS
1S15
R2044 1k
DRES
R2051 1k PCK
R2052 1k PDT
R2053 1k PMST
R2054 1k PDST
R2055 1k CON0 DSST
R2056 1k CON1 DRES
R2057 1k CON2 MCK
R2058 1k PBST MDT
BSTB
R2061 100 ASTB
R2062 100 DSST
R2063 100 L2254 0.56uH BSTB
R2064 100 MCK
R2065 100 L2253 10uH MDT
ETON
SPBK
TONE
AFMS
BEEP
SQL
ALCL
AVXL
VOXL
SNDL
D2081 MA2S111
CTCV
R2085 IC2101
4.7k BU4052BCFV
ATOT
8V
MCK
MDT
MSST
SPCH
1 4 MODS
STR Q1
2 5 AMS
D Q2
3 6 FMS
CLK Q3
15 7 WFMS
OE Q4
14 MINH
Q5
13 UNFM
Q6
12 AFS1
Q7
11 AFS2
Q8
9
QS
10
QS
1 4 2OP1
STR Q1
2 5 2OP2
D Q2
3 6 2NTH
CLK Q3
15 7 2NBO
OE Q4
14 2N23
Q5
13 DSPS
Q6
12 SPS
Q7
11 TIFS
Q8
R2221
9
QS 100
10
QS
3 4 3 4 3 4
2 2 2
1 5 1 5 1 5
Q2221 Q2222 Q2223
UMC3N UMC3N UMC3N
IC2201
M62352GP
R2203 R2205 R2207
11 10
VCC VDD 100k 100k 100k
12 9 TN4V
AO11 AO10
13 8 TN3V
AO12 AO9
14 7 TN2V 2 4 6 9
DO AO8 - 1 - 7 - 8
15 6 TN1V 3 5 10
LD AO7 + + +
16 5 11
CLK AO6
17 4
DI AO5
18 3
AO1 AO4 IC2202b IC2202c
19 2
AO2 SO3 IC2202a
20 1
NJM2902V
GND VSS
R2215
2.2k
MPXB
MPXA
5VL
13 12
X X0
14 R2101 4.7k
X1
3 15 R2102 4.7k
Y X2
11 R2103 4.7k
X3
1
Y0 R2104 4.7k
5
Y1
2
Y2 R2105 4.7k
4
Y3
6
INH R2106 2.2k
10
A
D2104
9
B R2107 4.7k MA2S111
R2108 1k
D2106
R2109 4.7k MA2S111
W2101