Icom IC-706MKIIG Service Manual page 74

• MAIN UNIT
MAIN (4)
HV
5VL
R2172
6.8k
Q2171
D2171 R2173 2SA1576
MA2S111 33k
CIV
IC2122c 67 nS
R2175
3 5
18k
Q2172
2SC4081
CIVE
IC2122b
2 6
IC2161
S-80942ANMP-DD6
R2167 R2164
1 5
10k 33k OUT CO
HV 2
VDD
3 4
VSS NC
R2150
470
DSPI
R2147
R2149
1k
DASH 1k
DOT
UL
D2144
MA2S111
R2144 1k
R2152
47k
0VDV
PWK
POWS
D2143 D2142
5VL DA221 DA221
Q2141
DTC114EE
SQLS
R2133
1k
KEY TKEY
STRT TCON
Q2131
R2134
DTC114EE
1k D2132 D2131
DA221 DA221
D2133
DAN222
5
1
4
2
3
IC2131
TC4S81F
J2061
Optional
unit
SPBK
MCK
MDT
MSST
SPCH
LEFT SIDE
H5V
HV
5VL
R2003 1k
R2002 1k
SNDS
R2001 W2001
220
Q2001
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
5.0 V
R2005
47k
MPXB
MPXA
H5VL
R2161
10k
D2161 R2162
MA2S111 4.7k
1 60
RES P14/A4
X2161
2 59
CR-636 XTAL P15/A5
3 58
EXTAL P16/A6
4 57
MD1 P17/A7
5 56
R2165 MD0 VSS
R2166
6 55
100 100 NMT P20/A8
7 54
STBY/FVPP P21/A9
8 53
P22/A10
VCC
9 52
SCK0/P52 P23/A11
10 51
RXD0/P51 IC2001 P24/A12
11 50
HD6433337YA56F
TXD0/P50 P25/A13
12 49
VSS P26/A14
DASK 13 48
WAIT/SDA/P97 P27/A15
DOTK 14 47
P96 VCC
UNLK 15 46
AS/P95 P47/PW1
16 45
WB/P94 P46/PW0
17 44
BD/P93 P45/TMRI1/HIRQ1
D2141 18 43
IRQ0/P92 P44/TMO1/HIRQ1
DA221 19 42
IRQ1/EIOW/P91 P43/TMCI1/HIROQ1
20 41
ADTRG/IRQ2/ECS2 P42/TMRI0
R2142
1k
SQSS
CP2121
IC2121
CP2061
X25650S8I-2.5
CS VCC
SO HOLD
R2072 1k
WP SCK
VSS SI
R2074 1k
ATST
AHST
R2124
8
100k
1 7
R2084 4.7k
IC2122a 4
TC7W04FU
ATOT
8V
H5V
HV
14V
8V
5VL
LRXD
LTXD
RXS
TXS
KDS
SNDSR
1 4 MODS
STR Q1
2 5 AMS
D Q2
FMST 3 6 FMS
CLK Q3
PR4S 15 7 WFMS
OE Q4
PR3S 14 MINH
Q5
PR2S 13 UNFM
Q6
PR1S 12 AFS1
Q7
11 AFS2
D96S
IC2221 Q8
ATTS BU4094BCFV
NBS 9
QS
AGFS 10
QS
D2025 MA2S111 [ESP]
D2026 MA2S111 [FRA]
D2027 MA2S111 [EUR],[ESP]
D2028 MA2S111
D2029 MA2S111 [ESP]
D2030 MA2S111 1 4 2OP1
STR Q1
D2031 MA2S111 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
IC2222 Q8
BU4094BCFV
R2221
9
QS 100
R2041 1k COMS 10
QS
R2042 1k SDSS
3
1S15
R2044 1k DRES
2
R2051 1k PCK
1
R2052 1k PDT
R2053 1k PMST Q2221
UMC3N
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 IC2201
M62352GP
11 10
VCC VDD
12 9 TN4V
AO11 AO10
13 8 TN3V
AO12 AO9
14 7 TN2V
DO AO8
15 6 TN1V
LD AO7
16 5
CLK AO6
17 4
DI AO5
18 3
AO1 AO4
19 2
AO2 SO3
20 1
GND VSS
ETON R2215
2.2k
SPBK
TONE
AFMS MPXB
BEEP MPXA
SQL 5VL
13 12
X X0
14
X1
R2081 4.7k ALCL 3 15
Y X2
AVXL 11
X3
VOXL
D2081 MA2S111 SNDL 1
Y0
CTCV 5
Y1
2
R2085 IC2101 Y2
4
4.7k BU4052BCFV Y3
6
INH
10
A
9
B
ATOT
8V
W2101
MCK
MDT
MSST
SPCH
H5V
HV
14V
8V
5VL L2251 HF50ACC322513-B
5VL L2252 HF50ACC322513-B
IC2241
TD62783AF
MODS RXS 1
IN1
AMS TXS 2
IN2
KDS 3
IN3
1S15 4
IN4
MINH AMS 5
IN5
FMS 6
IN6
AFS1 WFMS 7
IN7
AFS2 UNFM 8
IN8
8V 9
VS
R2231
100
OP1
OP2
2FTH
2FB0
2F23 1
STR
DSPS 2
D
SPS 3
CLK
TIFS 15
OE
DDT
4 3 4 3 4 3 4 3 4
IC2231
2 2 2 2 TC74HC4094AF
5 1 5 1 5 1 5 1 5
Q2222 Q2223 Q2224 Q2225
UMC3N UMC3N UMC3N UMC3N
DSST
DRES
MCK
MDT
BSTB
5VL
R2203 R2205 R2207 R2209
1
100k 100k 100k 100k STR
2
D
3
CLK
2 4 6 9 13 15
- 1 - 7 - 8 - 14 OE
3 5 10 12
+ + + +
11
TB4V
IC2202b IC2202c IC2202d
TB3V
IC2202a
TB2V
NJM2902V
IC2232
TB1V
BU4094BCFV
DRIV
RFGV
POCV
MIGV
AFGV
BANV
R2101 4.7k NSQL
R2102 4.7k MLLV
R2103 4.7k
FORL
D2108
1SS385
R2104 4.7k
SML
R2105 4.7k
REFL
R2106 2.2k
D2104
R2107 4.7k MA2S111
MUDL
R2108 1k
D2106
R2109 4.7k MA2S111
OPTL MEASUREMENT CONDITIONS
SUPPLY VOLTAGE:13.8 V
DIGITAL MULTIMETER :50 k‰/V
MAIN UNIT(3)
H5V
H5V
HV
HV
14V
14V
8V
8V
5V
5V
GND
BDT
BDT
STRT
STRT
KEY
KEY
SQLS
SQLS
POWS
POWS
PWK
PWK
0VDV
0VDV
18 UL
O1 UL
17 DOT
O2 DOT
16 R2245 220 DASH
O3 DASH
15 CIV
O4 CIV
14 CIVE
O5 CIVE
13 LRXD
O6 LRXD
12 LTXD
O7 LTXD
11 SNDSR
O8 SNDSR
10 FMST
GND IFST
PR4S
PR4S
PR3S
PR3S
PR2S
PR2S
PR1S
PR1S
D96S
D96S
ATTS
ATTS
NBS
NBS
AGFS
AGFS
R8V
R8V
T8V
T8V
KDS8
KDS8
1F15
1F15
AMS8
AMS8
FMS8
FMS8
WFM8
WFM8
UNF8
UNF8
COMS
COMS
SDSS
SDSS
SPS
SPS
4 L1 DRES
Q1 DRES
5 L2 MCK
Q2 MCK
6 L3 MDT
Q3 MDT
7 L4 SPCH
Q4 SPCH
14 L5 ETON
Q5 ETON
13 L6 TONE
Q6 TONE
12 L7 AFMS
Q7 AFMS
11 L8 BEEP
Q8 BEEP
SQL
SQL
9 PCK
QS PCK
10 PDT
QS POT
PMST
PCE
PDST
PDST
CON0
CON0
CON1
CON1
CON2
CON2
PBST
PBST
MODS
MODS
MINH
MINH
AFS1
AFS1
AFS2
AFS2
AMS
AMS
TIFS
TIFS
OP1
OP1
OP2
OP2
2FTH
2FTH
2FB0
2FB0
2F23
2F23
4 L9 ALCL
Q1 ALCL
5 BHF AVXL
Q2 AVXL
6 B0 VOXL
Q3 VOXL
7 B7 SNDL
Q4 SEND
14 B7W CTCV
Q5 CTCV
13 IDS NSQL
Q6 NSQL
12 MLLV
Q7 MLLV
11 FORL
Q8 FORL
SML
SML
9 REFL
QS REFL
10 MUDL
QS U/D
OPTL
PTTP
DSPI
DINT
DSPS
DSPS
DDT
DDT
MCK
ICK
DSST
IMST
L1
L1
L2
L2
L3
L3
L4
L4
L5
L5
L6
L6
L7
L7
L8
L8
L9
L9
BHF
BHF
B0
B0
B7
B7
B7W
B7W
IDS
IDS
TB4V
TB4V
TB3V
TB3V
TB2V
TB2V
TB1V
TB1V
DRIV
DRIV
RFGV
RFGV
POCV
POCV
MIGV
MIGV
AFGV
AFGC
BANV
14.1 MHz USB BANV
MAIN (4)
RIGHT SIDE
10 - 5