Kenwood FM Transceiver TK-481 Service Manual page 34

• Panel tuning
SCREW
TUBE
BLU (7)
To Radio
BRN (10)
RED (2)
16
BLK (3)
WHT
(5)
BRN (6)
• 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
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
100 10V
+
AF Voltmeter
+
100 10V
+
10 10V
Audio generator
Connector case
100 10 V
+
AF voltmeter
100 10 V
+
10 10 V
+
Audio generator
TK-480/481
Repair Jig (Chassis)
Use jig (part No. : W05-0825-00) for repairing the TK-480/
481.
The jig facilitates the voltage check and protects the
module when the voltage on the flow side of the TX-RX unit
is checked during repairs.
Battery terminal (+)
Power
module
How to Remove the Flat Cable
1. Gently draw out both sides of the connector lever uni-
formly in the direction of the arrow with tweezers.
(CN300, CN301)
Flat cable
2. Gently prise up the connector lever in the direction of the
arrow with a fine regular screwdriver or tweezers.
(CN1, CN3, CN304)
Regular screwdriver
TX-RX unit
Jig
Tweezers
Lever
Flat cable
Lever
33