Pa/Driver Units - Icom IC-7000 Service Manual

11-4 PA/DRIVER UNITS

PA UNIT (1)
L706
J2
EXCML16A270U
14V
14V
27 28
14V
14V
25 26 L707
14V
EXCML16A270U
14V
23 24
14V
14V
21 22
8V
8V
19 20
GND
GND
to 17 18
GND
MAIN
GND
unit J2004
15 16
GND
GND
13 14
GND
GND
11 12
GND
GND
9 10
ICL EP742
HV EP772
7 8
ICH EP741
POWS EP767
5 6
H6CR8 EP751
ID2V EP775
3 4
ID1V EP774
ID3V EP776
1 2
J980
P2T8 EP758
IDRV EP778
27 28
P4T8 EP759
ID4V EP777
25 26
PT8V
PT8V EP756
23 24
VUFOR R744 ERJ3GE-JPW
PHT8 EP779
21 22
2M8L EP753
TN2V R750
19 20
PR3S EP747
TN1V R749
17 18
to
PR4S EP748
MAIN
THML EP752
unit J2005
15 16
P4R8 EP761
AT13 EP762
13 14
P2R8 EP760
11 12
JHREF
GND
9 10
JHFOR
J3R3V
7 8
GND
JMST
5 6
JPRES
JMCK
3 4
GND
JFDAT
1 2
R102
J101
P101
18
to MAIN W101 YGR
unit J1 W102
D101
1SS302
R153
4.7k
C153 D151
J451
P401
0.1 1SV307
W401
to MAIN HRX
unit J101
W402
C154 L151
0.001 5.6µ
14V
IC701
BA08FP
R105
680
1 2 8V
I O
G
3
YGR
Q101
2SK2854
ICL
HV PT8V
ICH
POWS
H6CR8
ID2V
ID1V
ID3V
R102 C101
100 0.01
DRIVO
J101 J102
DRIVI Q504
PD55015
_P2T8
IDRV
EP743 P4T8
ID4V J103 J104
R773
ERJ3GE-JPW
PT8V
VUFOR
PHT8
2M8L
ERJ3GE-JPW TN2V
PR3S
ERJ3GE-JPW EP754 TN1V J107
PR4S
THML
P4R8
EP763 AT13
P2R8
JHREF DRIVER UNIT
JHFOR
J3R3V
JMST
JPRES
C564 C562 L557
JMCK
0.001 0.001 82n
JFDAT
C101
0.1
YGR
D102
1SS302
R575
4.7k
IC471
µPC3215TB
C481
0.001
D152 R476
6
MA2S111 39
4 1
C482 5
3
0.001
2
C151
0.1
HRX
R477
220
L152 R151
47µ 330
H6CR8
L102 C107 C109 R111
6.8n 0.1 0.1 560
C741
0.1
L103 100µ
Q102 Q742
R109
RD01MUS1 2SB1132
33 L104 100µ
R742
L105 HF50ACC322513-B 47k
8V
R736 NTCG20
R734
NTCG20
8V
C341
CP201 CP202 0.001
L301
LR-383
L204 L203 C333
10n 10n 330p
C340
0.001
C342
0.001
Explanatory notes
VOLTAGE LINE
TX LINE
RX LINE
ID1V
C559
0.001
Q551
3SK291
C561
470p
L556
10µ
C475 R471 C474 C472
0.001 39 3p 0.5p
Q451
3SK291
R462
100k
14V
C113 R117
0.1 ERJ3GE-JPW
L201
Q741
LR-515
R743 C118
BCR108T
1k 100p
C201
0.001
C120
12p
D705
C217
DAN202K
0.1
C307
C319
0.001 100p
R312 39
R313 33
R301 C311 R310 L303
ERJ1W-JPW 0.0068 0.68 LR-400
Q301
RD70HHF1
R314 33
R315 39
C312 R311
0.0068 0.68
Q302
C306
RD70HHF1
0.001
R303 R309 2.2k
ERJ1W-JPW
D301 D302
R304 R306
DAN202U DAN202U
100 100
R305 R307
22 22
C554 L553 C552
0.001 68n 0.001
R555
1k
Q552
R559
BCR108T
220k
R577
4.7k
AT13
Q453
BCR108T
C458
0.001
R454
ERJ3GE-JPW
R467
Q452
47k
R458
BCR108T
180k
R457
390k
TN1V
11 - 10
BUS LINE1
14V
R201
100
C326
12p
L305
LR-506
C308
0.001
PA
UNIT (2)
L551
22n
C456 L451 C452
3.5p 4.7n 12p
R468
ERJ12-JPW
BUS LINE2