Kenwood TS-430S - Manual (Page 20)

SECTION 6. ADDITIONAL INFORMATION
6.1 GENERAL INFORMATION
Your TS-430S has been factory aligned and tested to spe­
cification before shipment. Under normal circumstances,
the transceiver will operate in accordance with these oper­
ating instructions.
If your transceiver fails to work, contact the authorized
dealer from whom you purchased it for quick, reliable re­
pair. All adjustable trimmers and coils in your transceiver
were preset at the factory and should only be readjusted
by a qualified technician with proper thest equipment.
Attempting service or alignment without factory authori­
zation can void the transceiver's warranty.
6.2 INSTALLING THE OPTIONAL
FILTERS
1. Remove the power connector from the radio.
2. Using a #2 philips screwdriver, remove the top cover
(8 screws). Be careful of the VOX controls, and the
speaker lead, which may be unplugged.
3. Loosen the two side screws and remove the 2 screws
securing the IF unit bracket. Swing the bracket up
slightly to access and remove the two heat sink
screws. Swing the assembly down.
4. Remove 7 screws from the IF unit. Switch the board
forward. Protect the top of the front panel from
scratching.
5. Using a 45W (or less) soldering pencil, clear the 6
holes for the filter, if they are filled with solder. When
installing an AM filter, first remove R16 on the IF unit,
and cut the R-129 lead on the Control unit.
6. There is no polarity to the filter. Install the filter into
its position on the IF unit. Solder the 2 mounting tabs,
and the 4 input and output pins to the circuit board.
Solder sparingly, and heat the connections only long
enough to insure a good solder joint. Don't overheat
the filter or circuit board.
7. Carefully inspect your soldering. Be certain that all
pins are actually soldered, and that you have not sol­
dered across any spots on the board or between any
of the pins on the filter. Clip the pins flush to the
board.
8. Replace the IF unit in its place. Make certain no wires
will be pinched underneath the board. Replace the 7
screws for the board, plus the two heat sink screws.
Tighten the 2 side screws and replace the 2 rear
bracket screws, (See that the wire harness does not
interfere with the PG scan speed control).
9. Move the connection as illustrated when an AM filter
is installed.
10. Reconnect the speaker lead, and reinstall the top
cover.
11. Apply power and verify your work. Filter installation is
now complete.
2 0