Kenwood TK-290 Service Manual page 38

TK-290
• Panel tuning
SCREW
TUBE
To Radio
• 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.
Remove the
screw
PCB layout
Shield
38
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)
BLU (7)
PTT SW
BRN (10)
100µ 10V
RED (2)
+
16Ω AF Voltmeter
+
BLK (3)
100µ 10V
WHT
+
(5)
10µ 10V
Audio generator
BRN (6)
KPG-36
PCB lay
Connector case
100 µ 10 V
16 Ω
+
100 µ 10 V
AF voltmeter
+
10 µ 10 V
+
Audio generator
Repair Jig (Chassis)
Use jig (part No.: A10-1399-03) for repairing the TK-290.
Place the TX-RX unit on the jig and fit it with 7 screws.
Note : Supply power from an external power supply (Battery
terminal : +, jig (chassis) : –)
Battery terminal (+)
TX-RX unit
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.
(CN101, CN400)
Flat cable
2. Gently rise up the connector lever in the direction of the
arrow with a fine regular screwdriver or tweezers.
(CN1, CN3, CN401, CN403)
Note : Gently push both sides of the connector lever, when
put in the flat cable.
Regular screwdriver
Jig
Tweezers
Lever
Flat cable
Lever