Disassembly For Repair (Tk-790/(B)); Removing The Case And Shield Cover; Removing The Tx-Rx Unit; Removing The Final Unit - Kenwood TK-790 Service Manual

TK-790/ ( B

1. Removing the Case and Shield Cover

1. Remove the 9 screws (
lower halves of the case. (Remove the 4 screws holding
the upper half and the 5 screws holding the lower half.)
2. Remove the shield cover (
2. Removing the TX-RX Unit (X57-561 A/3)
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
) /H ( B )

DISASSEMBLY FOR REPAIR (TK-790/(B))

), and remove the upper and
1
).
2
), and remove the PLL shield
3
).
4
1
3
3
3
3
3
3
3
4
4
3. Removing the Final Unit (X57-561 C/3)
1. Remove the 2 screws (
the frame.
2. With a screwdriver, remove the leaf spring (
the Q2 to the frame.
3. Desolder the power module.
4. Remove the 2 screws holding the lead terminal from DC
connector (2P) on the rear.
5. Remove the 8 screws (
6. Desolder CN4 on the antenna connector.
1
1
1
2
7
7
7
7
5
7
5
7
6
CN201
CN203
Final
unit
CN104
4
4 4
TX-RX
unit
Control
unit
1
1
1
) holding the power module to
5
) holding the PC board.
7
7
1
1
) holding
6