Kenwood TK-980 Service Manual page 18

A B
TK-980/981
1
TX-RX UNIT : CONTROL SECTION (X57-6520-XX)(B/2) -12 : TK-980 -13 : TK-981
Component side view (J79-0294-09 B/2)
2
PSW
3
4
J501
5
PTT/
CM M IC
TX D
H O O K /
M E
RX D
6
J79-0294-09 (B/2)
7
Foil side view (J79-0294-09 B/2)
8
C501
R505
9
D505
L501
D503
10
C528
SPO
D507
Q501
GND
C601
Q513
11
R674
R680
MPTT
12
C607
J79-0294-09 (B/2)
13
18
14
C D
PC BOARD
Q511
PS B
E B LC
D501
D504
MUTE
SB
R513
R506
C503
Q508
X501
Q509
R668
R722
R667
PTT
GND
E F
D512
R525
VOL
UP
C513
VOL
DN
D513
MON
R720
C582
IC711
C577
R577
+
C560
IC507
R566
C554 C556
C578
22
23
R544
IC504
33
34
C516
G H
C527
R526
5 4
IC501
8 1 R502
C506
D509
R726
Q503
R552
C575
C535
C547
1 8
IC503
4 5
C540 R545
R551
R548
C574
A
TXAI
TXAO
D508
C562
R555
R562
C563
C628
C550
12
C549
11
+
C548
C565
R542
R550
C531
C552
C533
1
R536
44
R522
RXAI
C514
R521
RXAO
C515
R518
R520
I J
C518
8
1
IC502
4 5
R531
R507
+
C510
R523
R508
D510 C511 C714
D514
B
CN502
R564 C570
8
7
IC506
14
1
C
Q507
CN501