Disassembly For Repair - Kenwood TK-690H Service Manual

TK-690H
1. Removing the Case and Shield Cover
1. Remove the 12 screws (
lower halves of the case. (Remove the 6 screws holding
the upper half and the 6 screws holding the lower half.)
2. Removing the TX-RX Unit (X57-560 A/2)
1. Remove the 7 screws (
case.
2. Remove the connector (CN201) and coaxial plugs
(CN104, CN203) from the final unit, and remove the flat
cable (CN202) upwards from the control unit (CN502).
3. Remove the 5 screws (
22
( B )

DISASSEMBLY FOR REPAIR

), and remove the upper and
1
), and remove the PLL shield
3
).
4
1
1
CN203
3
3
3
3
3
3
4
4 4
3
4
4
3. Removing the Final Unit (X45-355)
1. Remove the 2 screws (
2. Remove the 3 screws (
and transistor to the frame.
3. Desolder two transistors.
4. Remove the 1 screw (
5. Remove the 4 screws (
6. Remove the 2 screws (
from DC connector (4P) on the rear.
7. Remove the 13 screws (
8. Desolder W3 on the antenna connector.
1
1
1
8
9
2
5
9
9 9
9
6
9
9
7
9
9
Final
unit
6
CN201
CN104
TX-RX
unit
Control
unit
1
1
).
5
) holding the power module
6
) holding TH1.
7
) holding the final transistor.
7
) holding the lead terminal
8
) holding the PC board.
9
8
1
1