Kenwood TK-290 Service Manual page 56

A B C D
TK-290
PC BOARD VIEW
1
TX-RX UNIT (X57-5390-10) Component side view + Foil side
2
3
16 17
IC414
4
1 32
C484 +
51 75
R461
50
5
L404
CP712
CP711
CP707
IC406
CP706
6
R432
C487
R425
R433
CP705
26
CP704
25 1
TP5
7
R424
R420
R422
C440
C438 C448
TP4
R423
R427
R494 C447
C444
R468 Q413
R428
E
4 5
8
IC413
1 8
X400
R419
R429
C481
+ C434
9
J72-0519-32
Ref No. Address Ref No. Address Ref No. Address
IC2 6G IC406 6C Q2 6H
10
IC3 5G IC409 9B Q3 3I
IC4 7F IC412 3E Q4 5M
IC5 4H IC413 8B Q5 4M
IC6 7H IC414 4C Q6 3N
11 IC7 4R IC415 4E Q7 4R
IC200 4O IC600 4K Q8 3P
IC300 7L IC601 5J Q9 3R
IC301 6H IC602 8J Q10 3R
IC400 5H IC603 8K Q13 4R
12
IC401 9D IC604 8L Q200 6R
IC402 8G IC605 6J Q301 6L
IC403 4H IC606 8M Q302 8M
IC404 3H IC607 6M Q303 6M
IC405 5H Q1 4H Q304 6M
13
59
14
E F G H
C471 C467
DATI CODE4
C466
C469
CODE3
DATO
C465
C470
R20
TCNT CODE2
C464
CODE1
STONE D5
C462
AUDIH TXOUT
C461 R21
X1
E RXOUT
C468
Q1
MUTE NC
C456
SCALL E R77
C457
PTTIO
AUX
C458
R430 R403 CLR/ 10
KEY
C (AUX)
C10 C93
R481 C95
+
3 4 MAND
RXAEN
C96
IC415
RXIN
IC5
EMERG
C94
C17
1 5
R466
BUSY TXIN
L21
C485
PTT +V
76
R4 R470
1
R460 R437
A+
9 8
R431
R471 R6
R449
CP714 C472
IC3
+
CP715
1
16
CP716
C31
IC301
CP718
R12
CP719
R329
R441
+ C100 +
C15
CP720
R13
R418
5 4
Q414 4
100 CP721
G
IC4 D
IC6
S
R482
8 1
G 5
D
+ +
S
+ CN405
C14
R75 G
R483
R407 L401
D
C429 C423
R496 +
Q415 S
C443
+
C425
+
C436
R472 C413
R426 C414
Q400
C416
1
5 1 R400
5
5 1 R402
3 2
Q402
Q401
3 2
L905 R405
5 1
4
3
R450 C421
R411
3 2
Q405
Ref No. Address Ref No. Address Ref No. Address
Q305 6M Q414 7F D204 5R
Q400 9G Q415 8F D205 5R
Q401 9F Q601 5L D206 5R
Q402 9H Q602 4M D207 5Q
Q403 4M D4 7I D208 5Q
Q404 4M D5 3H D300 6L
Q405 9G D6 5M D302 9J
Q406 9I D8 3N D303 6I
Q407 8D D9 4Q D400 8H
Q408 6R D10 6Q D401 8B
Q409 6R D11 8S D402 6P
Q410 6R D200 8S D403 7P
Q411 6Q D201 7R D404 7E
Q412 7F D202 7R D408 7G
Q413 8C D203 5R D409 6R
I J K L
R24
1 16
C36
1 33
C35
IC404
CN401
C33
Q3
8 9
1 16
TP1
+
C29
R73
4
IC403
C610
R74
8 9
11
L800
1 16
C473
+
IC405 C19
1 R663
9
8
C602 C608 R616
20
+
1 16
22
R618
IC400
23
9
8
+
C43
R476 Q301
X600
3 4
R28
+
C323
+
+ R333 C320
1 5
TP2
C333 R336
R332
R672
R304
C321 R671
TH301 R341
R670
3
33
C34 R305
34
R629
R307
CF301
1
R623
R602
C23 R622 8
C603 R611
CF303 R624
C606 R614
13 12
R628
R609 IC300
1
C665
C315
L300
IC603
R319
CF302
+
CF300
R605
C435
R621 R626
TP6 R669
C619
24 1
C330 R318 R317 C331 R615
X300
C660 +
R677
C430 R315
E
C311
Ref No. Address
SA7025DK BU4094BCFV
D601 4M
M62354GP
D602 3M
D603 3M
TDA7053AT TA31136FN
60
M N O P
Q6
D603
C227
E R38 C59 B
D602
C49 R36
R50 Q8
C
L212
R33
R40
R213 R53
E
R404
C56
C63
R408
C62
C66
D8
L23
5
R414 C656
IN
C224
R652
R653 L210
C99
D601
Vcont
C228 C229
C655
C666
C652
8 Q4
R214 L213
C206 C230 L214
R659 Vcc
D6
C646
C649 R661
C37
+
C648
R27
C647
12
L215
11
IC607
D300
R658
C310
C240 D402
R655
1 5 C319
Q305 R654
2 3
C337 C309
R743
C317
R435
C636
1
44
R649
CD300 C634
XF301
C400
C633 R645 C632 9
D403
NC
RXD
OUT
TXD
5M
16
E
R666
(DET)
REM
C305
5 4 PTT
R636 EME
C307 IC606
EMC
R648
MSW
R637
8 1 SP–
R308
C631
SP+
R638 SSW
R619
R644
C411
R646
MAX856 M62364FP
NJM2904V
LC73872M M68776
Q R S
TP3
Q10
C234 R215
E
R216 C237 R219
R67 R61
C73
+
R65
R478
Q9
L10 R495
E
C70 R58
C60
R56 C214
D9 S
D
G
C71 C216
C54
Q7 D205
C76 D207
C215
5M
C78
BLED
TXLED
D206
D208 D203
LAMP
C79
R922 DAT
CLK
R44 R45 L202
LCDCS
R82 Q7
R443
TP9
R42 Q6
KEY2
D204
C212 TP8
TGL
R41
PWSW
R70 C81
PWSW
R206 R207
R458 C476 C475 B+
R71 C84
B+
C209
Q408 5CM
VOL
Q409
L13
R204 DGND
Q411 CH B
CH C
C207
C478 R457 CH A
E
CH D
R226 L201
C233 R202
R456
C
R209 R203
D409
R445
R436 B C213
R201
Q410
L12
R439
L14
C85
R413
C86
TP7
C88 C90 C92
C89 C91
E
E
L16
GND GND
ANT
Component side
TA75W01FU
Pattern 1
TC7W04FU
Pattern 2
TC75W51FU
Pattern 3
Pattern 4
Pattern 5
Pattern 6
Foil side
Connect 1 and 6