Schematic Diagram - Kenwood TK-3312 Service Manual

A
TK-3312/3317
TX-RX UNIT (X57-7890-20)
1
2
3
C N 8 0 1
V R 1
E 4 0 - 6 8 2 7 - 0 5
R3 1- 06 7 6 - 0 5
B
1
2 SB
4
3 AFI
4 AFO
5 GND
6 UP
W 1
7 DOWN
W 02 - 3 7 4 8 - 0 5
GND
8
5
4 K E Y S
1
3 K E Y
4
7
*
6
PTT
Side1
SIDE1
Side2
SIDE2
GND
7
38
X57-789 1/6
B

SCHEMATIC DIAGRAM

LCD
L C D B A C K L I G H T
10kx4
3 3
C P 8 2 6
S E G 2 9
SEG29
3 4
SEG30
S E G 3 0
SEG31
3 5
SEG32
S E G 3 1
3 6
S E G 3 2
R 9 3 6
SEG33 3 7
S E G 3 3
1 0 k
3 8
S E G 3 4
3 9
S E G 3 5
7.5V 4 0
S E G 3 6
4 1
S E G 3 7
4 2
S E G 3 8
VOLIN
4 3
S E G 3 9
4 4
S E G 4 0
4 5
S E G 4 1
VOLOUT
4 6 S E G 4 2
4 7 S E G 4 3
S E G 4 4
4 8
SB
A B C
2
3 KEY4O
D 8 2 9
KEY1I
1 S S 3 8 8 F
5
6
D 8 3 0
KEY2I
1 S S 3 8 8 F
8 9
D 8 3 1
KEY3I
1 S S 3 8 8 F
0 #
D 8 3 2
KEY4I
1 S S 3 8 8 F
KEY3O
KEY2O
KEY1O
PTT
L302
PF1
PF2
C
BUSY
B30-2314-05
D 8 0 4
DC SW
Q 8 2 1
2 S B 1 6 9 4
R 9 6 1
0
D C S W
2 S C 4 6 1 7 ( S )
Q 8 2 0
R 9 5 2
3 3 0
C P 8 2 1
1 6
SE G12
SE G11
1 5
S EG1 0
1 4
S EG9
1 3
C P 8 2 0
S EG8
1 2
S E G7
L C D
11
D R I V E R
S E G6
1 0
S E G5
IC821
9
C P 8 1 9
NJU6434
S E G4
8
S EG3
7
S E G2
6
S E G1
5
C P 8 1 8
Co M4
4
Co M3
3
Co M2
2
CoM1
1
C 9 5 0 R992
1 M
1 u
C951
1 0 0 0 p
AVR
I C 8 0 4
X C 6 2 0 9 B 3 3 2 M R
R 8 0 7
1 V I N
Vo U T
0
2 V S S
R:7.4V
T:7.2V 3 C E
7.4V
I N T
I C 8 0 5
X C 6 1 C N 4 5 0 2 M R INT
R 8 2 2
Vo U T
V I N
1 k
V S S
D E
TX S I GN
B30-2315-05
B30-1790-05
D 8 0 1
D 8 0 5
DC SW
2 S K 1 8 3 0 F
D C S W
Q 8 0 5
Q 8 0 1
LEDGRE
U PA 6 7 2 T- A
LEDRED
RX: 0V
TX:3.3V
7.4V
SB
3.3V
R 9 6 0
33MS
0
R 9 5 3
4 . 7 k
BUSY LED
ON:3.3V
10kx4
SEG12
SEG11
SEG10
SEG9
10kx4
SEG8
SEG7
SEG6
SEG5
10kx4
SEG4
SEG3
SEG2
SEG1
10kx4
COM4
COM3
COM2
COM1
3.3V
3 3 M
5
N C
4
3.3V
33MS
33MSC
DC SW
ON: 0V
Q 8 0 4
S S M 3 J 0 5 F U - F
BLUE LED
ON:3.3V
LCDBL
BUSY
LEDBLU
LEDGRE
LEDRED
33MS
33M
VOLIN
33MSC
INT0
VOLOUT
SB
PTT/RXD
B