Kenwood TK-3140 Service Manual page 25

• Panel tuning
SCREW
TUBE
BLU (7)
To Radio
BRN (10)
RED (2)
BLK (3)
• PC tuning
Connect the wires to the PCB in the connector case of
interface cable.
For output the wires out of the connector case, need to
process the connector case.
KPG-36
Remove the
screw
PCB layout
16 Ω
Shield
ADJUSTMENT
2: RED (RX AF OUTPUT)
3: BLACK (RX AF OUTPUT)
5: WHITE (MIC INPUT)
6: BROWN (MIC GND)
7: BLUE (PTT SW) GND → ON
8: YELLOW (PF SW)
10: BROWN (GND)
11: GREEN (5M)
PTT SW
100µ 10V
+
16Ω
AF Voltmeter
+
100µ 10V
WHT
+
(5)
10µ 10V
Audio generator
BRN (6)
Connector case
100 µ 10 V
+
100 µ 10 V
AF voltmeter
+
10 µ 10 V
+
Audio generator
Removing the front panel
After removing the battery pack, knobs, and antenna,
remove the 2 screws from the back of the transceiver.
Lift the chassis away from the bottom part gently, then pull
out the chassis as shown below.
Connecting the PTT, MIC, SP, and SW2 cables
When connecting the PTT, MIC, SP and SW2 2-wire cables,
ensure that the color of each cable mates as shown in the
following diagram.
PTT(WHITE)
SW1(RED)
SW1
PTT
GND
SW2
MIC(WHITE)
CN303
CN304
SP(WHITE)
GND(BLUE)
SW2(WHITE)
TK-3140
MIC(BLUE)
CN306
SP(BLUE)
CN305
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