Kenwood TK-880 Service Manual page 60

A B C D
TX-RX UNIT (X57-6152-70) (B/2) Component side view + Foil side : E
J72-0725-12 B/2
C607
MPTT PTT GND
R680
R667
R674 R722
D511
PSW
R668
Q509
C601
Q511
X501
GND
Q508
SPO
C528
D503
D504
C503
C502
R506 R513
SB
D505
L501
J501
PTT/
CM MIC TXD PSB
HOOK/
ME E BLC
RXD
R723
R505
C726 R702
C501
Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address
IC501 3G
IC509 4L Q501 4B Q511 4C
IC502 3J IC510 3O Q502 4H Q512 3A
IC503 4G IC511 4P Q503 4H Q513 3B
IC504 4F IC512 3N Q507 3I Q515 3A
IC506 4I IC513 4L Q508 4C D501 6C
IC507 5E IC710 3I Q509 3C D502 5D
IC508 3L IC711 6F Q510 5R D503 4A
DTA114EE 2SC4215 2SB1132
DTA144WE
2SC4226 2SB1188
DTC114EE 2SC4617 2SC2873
DTC144EE 2SC4619 2SC2954
DTD114EK 2SC5110
2SC3357
2SA1362
2SC2059K
2SC2412K
2SC3722K
FMW1 TA78L05F AN8009M
5
3
1
V
REF
GND
2
V
IN
TC4013BF BU4066BCFV
LA4422
E F G H
D512
R520
R710
C516 R518
C515
C527 C710
R525
RXAO
R521
R526
R713
C514
5 4
RXAI
IC501 R536
34
VOL R522 R502
8 1
R714
33 1
UP 44
C513
C506
C533 C552
C531 Q502
R726 R550
IC504
R552
R544
C535 C547 R542
1 8
IC503 +
C548
VOL
23 11
4 5
DN C540
22 12 R545
C549 C550
C563
R551 R548
C578
C554 C556 R555
R562
C562
R566
C574
+
D513 C560
R577
R730
TXAO
C577
TXAI
C582
A
C721
Ref. No. Address Ref. No. Address Ref. No. Address
D504 5C D512 2E D520 5L
D505 5A D513 5E
D507 4A D514 6I
D508 5G D515 6M
D509 4I D516 5R
D510 4I D517 2R
D511 3C D518 2A
2SA1641 2SD2394 2SC4081
TA7808S RH5VL42C TA75S01F
LC73872M BU4094BCFV TA31136FN
I J K L
R514
R517
C712
R510
C518
1 5
1 8
1
IC710
C524
R673
IC502
3 4
R572
4 5
IC508
R531
R507
C633 8
C510 +
14 1
R508 R523
C602 C609
IC506 C511 C714
D510
8 7
C575
IC513
R564 C570
C724
C565
IC509
R612 C593
D520
C625
C623
D514
B
C
2SC4093 DTC314TU DTC114EUA
DTC363EU
4
3
1
2
TC4S66F M57729H-22 GN2011
M62363FP
SA7025DK
63
M N O P
PC BOARD VIEW
C583
8 L507 1
16
R682
C592
IC512
5 4
51
9
50
R647
R649
R650
R651
R652
R653
R705
R654
R706
R675
R655
R656
R657
R670 R658
R659
R660
R611 R661
R662
R663
R614
R664
R665
R616
26
25
R619
R666
R644
R621
R642
R640
R638
D515 R635
R633
R631
C610 R676 D
R629
C608 R628
2SK508NV 2SK1824 DTA114YUA DAN202U
HSM88AS
TA75W558FU TA75W01FU AT2416N10SI2.5
TC75W51FU
30620M8-394GP
AT29C020-90TI TC35453F
Q R S
TK-880
1
2
D517
CH
3
UP
75
76
R593
R594
R595
R596
R597
R598
4
R599
R600
R601
IC511 R602 R603
CH
DN
R584
5
100
D516 C603
1
Q510
C596
X502
CALL
6
Component side
Pattern 1
7
Pattern 2
Pattern 3
Pattern 4
Foil side
8
Connect 1 and 4
MA742
9
10
NJM2094V
11
12
13
64
14