Kenwood TKR-850 Service Manual page 64

A B C D
TKR-850
PC BOARD
1
2
DISPLAY UNIT (X54-3330-21) Foil side view (J72-0756-12)
J72-0756-12 A/2
3
4
5
BACKUP MAIN DC
RED GRN
6
R543
1 6
3 4
Q507
7
8
Component side
Layer 1
9 Layer 2
Foil side
10
Ref. No. Address
IC501
11
IC502
IC503
IC506
IC507
Q501
12
Q502
Q503
Q504
Q506
13
14
E F G H
R606
G
R517
D
Q525
S
4 3
6 1
Q504
Q509
R538
1 6
BUSY
3 4
RED GRN
R518
Q503
D508
VLI 11
D509
+
5M
GND
C517
C526 NC
SB
C518
NC
GND
R526
PTT
MIG
+
MIC
VR501
HK 1
Ref. No. Address Ref. No. Address Ref. No. Address
9J Q507 7B Q521 5H D511 6D
7D Q508 8J Q522 5I D512 7E
9P Q509 7F Q523 4H D513 6C
8I Q510 6B Q524 4I D514 6D
8F Q511 6C Q525 6F D601 5R
9I Q513 9N D501 9I D602 4R
9H Q516 5J D502 9I D603 4R
7F Q517 5I D508 7E
7G Q518 4I D509 8E
7G Q519 4J D510 6D
I J K
CP504 CP502
CP503 CP501
RED GRN
TX
+
C516
R525
C508
D502
R511
R512
C505
+
C503
1 8 R513
R507 +
IC501
Q501
4 5
+
D501
C507
L M N O
PC BOARD
DISPLAY UNIT (X54-3330-21) Foil side view (J72-0756-12)
J72-0756-12 B/2
CN502
R522
R529
Q513
R533
1 6
3 4
P Q R S
TKR-850
1
2
3
CN601
C606 C603
C602
4
D602
5
D601
R601
NC
HK
MIC
6
MIG
PTT
GND
SB
NC
7
8
C513
9
10
11
12
13
14