Icom IC-706MKIIG Service Manual page 80

• FILTER UNIT
P1 J1 C190 R62 C189
0.1 390 0.1
MAIN (1)
J101
HRX
D25
1SV312 R61 L69
100 100uH
4 1
3 2
R63
56
P2 J2
PAO
PA
J172
HPAD
J4 DASH
DOT
[KEY]
GND
J7 CIV
[CIV]
CIVE
L51 HF50ACC322513-B
J8 SENR
L43 HF50ACC322513-B
FSKR
[RTTY]
GND
J9
CIV
CIVE
FSKK
BDT
BANV
KEY
DASH
DOT
U/D
MAIN (2)
EALC
J461
GND
PTTP
AAF 100uH
L87
SQLS
AFO
L41 HF50ACC322513-B 8V
T8V
L60 100uH
DOUT
DIN
AMOD
L65 100uH
L64 100uH
J14 L67
100uH
AFOUT
6 5
4 3
L68
2 1 EXCCL3225U
[DATA]
J11
SQSM L44 100uH
GND
MICM L45 100uH
MCEM L46
[MIC]
SENM L47
MAFM L48 100uH
U/DM L56 100uH
8VM L49 100uH
LEFT SIDE
CP101
L1 L2
LA-246
LA-236
Q12 C2 C4
DTA114EE D26 0.75p 15p
RL1
MA2S111 AG20B44
L72
C6 0.0047 100uH C16 0.0047
R26 D3
Q9
2SC4213 10k 1SS302
D1
1SS302
L71
100uH
Q1
DTC114EU
TX:6.4 V
RX:0.2 V C7 0.0047
D24 D2
C87
DAP202U 1SS302
0.0047
L73
L59
100uH
HF50ACC322513-B
8VA 1
[ACC]
J5
GND 2
R9 100
BDTA 4
4 3 2 1
SEND1 3
138A 8
8 7 6 5
L36 C123
SEND2 7
100uH
1 W17
AFA 12
12 11 10 9
MODA 11
L74
SQSA 13 100uH C23 0.0047
13
L39
HF50ACC322513-B
FSKA 10 6 9 5
D4
L55 100uH ALCA
1SS302
L34 100uH BANA
KEYA
L54
100uH
L75
100uH C30 0.0047
D5
1SS302
RL16
MZ-12D-K
Q11
L86
2SD1623 100uH
C146 0.0047
L76
100uH C37 0.0047
D6
1SS302
D23
1SS302
TX: 0.75 V V.UHF: 4.1 V
RX: 0 V
HF: 0 V 13.5 V
R82
100uH 1k
100uH
8.0 V
Q10
2SC4081
L10 L11
LR-216 LR-216
7MHz
RL4 RL5
C184 C185
MZ-12D-K MZ-12D-K
100p 33p
50MHz
L79
C22
0.0047 100uH
24MHz
28MHz
L5 L6 L7
LA-550 LA-550 LA-547
RL2 RL3
NA-12W-K C162 C164 NA-12W-K
6p 15p
10MHz
C201
14MHz
24p
C15 L80
0.0047 100uH
18MHz
21MHz
L14
LR-387(EUR,FRA,ESP) L15
LR-389(USA,OTH) LR-388
3.5MHz
C170 C171
RL7
39p(EUR,FRA,ESP)
22p(EUR,FRA,ESP)
MZ-12D-K
47p(USA,OTH) 15p(USA,OTH)
RL6
MZ-12D-K
C200 3p
1.9MHz
C29 0.0047
L81
100uH
L50
LR-293
L18 L19
LR-293 LR-293
RL8 RL9
MZ-12D-K
MZ-12D-K
C32 C174
110p 56p
L77
100uH
C36 L82
100uH
0.0047
L22
L23
LA-481 LA-551
RL10
RL11
MZ-12D-K MZ-12D-K
C177 C178
22p 68p
L78
100uH
C43 L83
100uH
0.0047
13
4.0~7.999999 MHZ
Q4
CONNECT:4.2 V
2SC4081
NO CONNECT:0 V
L3
L33
R72
LR-391
1k
R2
30.0~59.999999 MHZ
22
CONNECT:4.2 V
Q8 NO CONNECT:0 V
2SC4081
L7 D9 D10
1SS375 1SS375
R80
1k
22.0~29.999999 MHZ
CONNECT:4.2 V C65 C66
NO CONNECT:0 V 470p 470p
Q7
2SC4081
L6
R78
1k
8.0~14.999999 MHZ
CONNECT:4.2 V
NO CONNECT:0 V
Q5
2SC4081
L4
R18
R74 5
100 7
1k +
6
-
15.0~21.999999 MHZ
IC1b
CONNECT:4.2 V
NO CONNECT:0 V
Q6
2SC4081
IC1
L5
NJM2904M
R76
1k
2.0~3.999999 MHZ IC1a
R16
CONNECT:4.2 V
4
NO CONNECT:0 V 100 2
Q3 1 -
2SC4081 + 3
L2
8
R70
L57
1k
100uH
0.03~1.999999 MHZ
CONNECT:4.1 V
NO CONNECT:0 V
Q2
2SC4081
L1
R68
1k
L26 L27
LR-216 LR-214
RL12 RL13
MZ-12D-K
MZ-12D-K
C46 C48
430p 110p
C44 0.0047
C50 L84
D7
0.0047 100uH
1SS302
L30
L31
LR-294 LR-295
RL14
RL15
MZ-12D-K MZ-12D-K
C53 C55
470p 120p
C51 0.0047
C57 L85
D8
0.0047 100uH
1SS302
13
C136 J13
0.68
HOUT
[ANT1]
ATT ON:11.5 V
ATT OFF:0 V
J12
L1 R33 1k
L2 R34 1k
L3 R35 1k
L4 R36 1k
L5 R37 1k
L6 R38 1k
L7 R39 1k
GND
HFOR
HREF
SDSS MAIN (2)
GND J431
14V
14V
14V
AT13
MIC
MICE
SEND
SNDSR
W18
W19
W20
W23
MEASUREMENT CONDITIONS
SUPPLY VOLTAGE:13.8 V
14.1 MHz USB
DIGITAL MULTIMETER :50 k‰/V
FILTER
RIGHT SIDE
10 - 7