Tx-Rx Unit (X57-6152-70) (B/2) - Kenwood TK-885 Service Manual

A B C D
TX-RX UNIT (X57-6152-70) (B/2) Component side view
J72-0725-12 B/2
D511
PSW
Q511
J501
PTT/
CM MIC TXD PSB
HOOK/
ME E BLC
RXD
Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address
IC501 2G IC508 2L IC710 2I D509 3I
IC502 2J IC509 4L Q503 3H D510 3I
IC503 4G IC510 3O Q511 3C D511 2C
TX-RX UNIT (X57-6152-70) (B/2) Foil side view
C501 C726 R702
R505
R723
D505
L501
SB
R506 R513
C502
C503
D503
D504
C528
SPO
GND
Q508
X501
C601
Q509
R668
R674 R722
R667
R680
MPTT PTT GND
C607
J72-0725-12 B/2
Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address
IC504 10F IC511 10P IC711 7F Q507 11I
IC506 11I IC512 11N Q501 10B Q508 11C
IC507 9E IC513 10L Q502 11H Q509 11C
E F G H
D512
R710
C527 C710
R526
R713
R525
5 4
IC501
VOL
8 1 R502
UP
C513
C506
R726
R552
C535 C547
1 8
IC503
VOL
4 5
DN C540
R545
R551 R548
C574
D513
A
Ref. No. Address Ref. No. Address Ref. No. Address
D512 2E D515 5M D520 4L
D513 5E D516 5R
D514 5I D517 2R
C721
C582
TXAI
C577
TXAO
R730
R577
+
C560
R566
C562
C556 R555
C554
C578 C563 R562
C550
C549
22 12
23 11
+
C548
C565
R544 R542
IC504
R550
C531 Q502
C552
C533
33 1
R536
34
44
R522
RXAI
C514
R521
RXAO
C515
C516 R518
R520
Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address
Q510 9R Q515 12A D503 10A D507 10A
Q512 11A D501 8C D504 9C D508 9G
Q513 11B D502 9D D505 9A D518 12A
I J K L
R514
C712 R517
R510
C518
1
5
1 8 1
IC710
IC502
3 4
C524 R572
4 5
IC508
R531
R714
R507
8
C510 +
R508 R523
D510 C511 C714
C575
IC509
R612 C593
D520
D514
B C
C623
C625
C724
R564 C570 IC513
8 7
IC506
C602 C609
14 1
C633
R673
47
M N O P
PC BOARD VIEWS
C583
L507
16
R682
C592
9
D515
D
C608
R628
C610 R676
R629
R631
R633
R635
R638
R640
R621 R642
R644
R666
R619
25
26
R616
R665
R664
R614
R663
R662
R611
R661
R660
R659
R670 R658
R657
R656
R655
R675
R706
R654
R705
R653
R652
R651
R650
R649
R647
50
51
5 4
IC512
8 1
Q R S
TK-885
1
D517
2
SYS
UP
3
SYS
4
DN
D516
5
CALL
6
Component side
Pattern 1
Pattern 2
Pattern 3
7
Pattern 4
Foil side
8
X502
C596
Q510
1 9
C603
100
R584
10
IC511 R603
R602
R601
R600
R599
R598
R597
R596
9 5 R 5
R594
R593
76
11
75
12
Component side
Pattern 1
13
Pattern 2
Pattern 3
Pattern 4
48
Foil side
14