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TK-701S
TX Signal Path Diagram
4
Q3
Q4
138
2S8C2539
2SC2630
FIER
DRIVER
POWER
AMPLIFIER
ANT
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To RX L20
To PLL UNIT
Q6
~
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(RX
SIGNAL)
J4-1l
At
(POWER
CABLE)
2SB553(Y)
os
a9
AVR
Q7
TX)
J23
SB
2Scisis¢y)
2SCI8I5(Y)
2SCIBI5(Y)
AVR
APC
APC
Connector) Terminal | Terminal
:
.
Terminal function
No.
No.
name
DIF
FERRENTIAL
J21
1
TXO
Transmit signal input from PLL unit
AMPLIFIER
NO
| ce | crz | cis | cz0 | c23 | cz | cas | c29 | c30 | c38 | cao] car | ca2 | cas
2 | GND | GND
UNIT
-
J22
1
BZ
Voice signal output
150 ~ T60MHz
| o7p | 6ap| 33P | 33P jisoP ligoP |iooP jiooP | 27P|
18P| 2oP| 43P| 39P| 20P
2 | cno | GND
X61-1200-10
3
RXO_ | Receive signal input from PLL unit
156 ~ 163 MHz
23
1
ESP | External
speaker line output
P/IBOP | 82P | 82P])27P!
|2P}20P |] 43P)]39P{
20P
J
al speal
outp
X61-1200-11
27P
| GBP}
33P | 33P | 180
2
ce
8V common power source line
SB
Switched
Bt
iated
162
~ 169MHz
= | 27P | 56P|33P | 22P|180P|is0P | szP | s2P|24P|
oP | 16P}33P|33P|
16P
Suvitched BT to regulated power
X61-1200-12
4
KEY | TX/RX data output (L when trans-
168 ~ 174 MHz
i8P | 56P|27P|
22P]isop|isop|6sP|s2P|22P|
sP|i6P|33P|33P|
16P
mitting;
H when receiving)
X61-1200-13
5
R8
8V when receiving
6
Ts
8V when transmitting
7
AVO
Voice signal output fram AF volume
cont.
8
AVI
Voice signal input to AF volume
cont.
9
AFO
Voice signal output
10
NSO
Noise squelch signal output
V1
NSI
Noise squelch signal input
12
AFI
Voice signal input
13
MUT
Mute signal input
14
QTD
Quiet Tone Disable output
.
15
AC
Audio control output
16
UNL
Unlock signal input
J24
1
B
Bt line to transmit final stage
2
B
Bt line to transmit final stage
.
3
B
Bt line to transmit final stage
4
B
Bt line to transmit final stage
J25
1
LMP{RED))
Channel illumination lamp ®
2
GND(BLK)|
GND ©
J26
1
COM(BRNY
Common
power source for LED
2
BSY(RED)|
BUSY indication
LED
3
CAL(ORG);
Call indication
LED CAL
4
TX(YEL) | TX indication LED
5
GND(BLK)|
GND
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