Tx-Rx Unit (X57-5390-10) - Kenwood TK-290 Service Manual

TK-290
PC BOARD VIEWS
TX-RX UNIT (X57-5390-10) Component side view
D403
R464
R413
D409
R435
Q410
B
R436
R456
C
R445
CH D R457
E Q411
CH A
C473 D402
CH C
CH R
E
VOL Q409
5CM
B+ C475 R458
C476
B+
R41
SB
SB
R42
TOGGLE
KEY2
Q6 R45 R44
R443
Q7
LCDCS
CLK C79
DAT
LAMP
TXLED
C78
BLED
5M
C76
Q7 B
C54
C71
G
D
D9
S Q13 C60
R56
R58 C70
L10
Q9
C73
R61
Q8
E
C
TP3
R215 C234
B
53
C659
C625
C411
1
C623
SSW
R621
SP+ R638
1 8
SP-
MSW
EMC
EME 5 IC603
4
PTT
IC606
REM
R624
(DET) C631 R666
E
5M
R648 R640 C626
TXD R628
RXD
R641 R639 C629
NC
12
R647
C627 R642 C630
C661
R643
C632 R645
C400
44
34
1 33
R670
C410
C635
R671
C637
R672
C638
C669
C640
IC607
11
23
22
12
R664
Q601
C608
S G
R661
C666
C654
D
Q602
R663
C652
R675
R652
C655
C450
R653
C657
Q404 R412
R415
D8
R55
C66 C62
C63
C56
R53
R40 C49
R50
R36
C59
R38
Q405
C660
Q402
5
1
R411
C430 1 5
R677 4
R405 2
3
4 5
1
R402
24
4
R669
R400 2
2 3 3
C435
Q400
R605
C414
C425
R472
C413
C665
R609 C423
R614
C606 L401
13
R611 C603
C621
C23 CN405
R602
R623
R622
1 5
Q600
R629
3
4
R13
3 1
IC2
R627 4 5
Q603
R476 9
8 C31
9
IC400
R449 IC3
R620 R618
16
C602
16 1 R470
9 8
R607 +V
C667
TXIN
R601
IC405
RXIN
R600 C601
RXAEN
16
1
C600
C610 R606
CLR/C(AUX)
9 8
C458
PTTIO
C612
C457
E
CI403
C456
NC
C468
RXOUT
R467
16 1
C461
TXOUT
9
8 C462
CODE1
C464
CN401
CODE2
C465
CODE3
C466
6 1
C467 CODE4
IC404
54
X57-539X-XX
C421 R450
J72-0519-02
4 3
2 Q401
5
1
C416
C436
C429
R75
R407
C14
1 8
IC4
4 1
C15 C100
R12
8
C472
R471
1
A+
PTT
BUSY
EMERG
MAND
R481
KEY
R674
AUX
SCALL
MUTE
E
AUDIH
STONE
TCONT
C470
CN402
DATO
C469
DATI
C471