LTM450FW ceramic filter 450 KHz
Replacement for YAESU VX-6R VX-7R Signal Crash 450F Filter
6 ELEMENT CERAMIC FILTER
Ultra small size high selectivity type ceramic filter for communication use.
- Ultra small size
- 6.3 mm profile
- Broad bandwidth
- High selectivity
- 6 elements
PACKAGE DIMENSIONS (mm)
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
|STOP BAND ATT.
|INPUT / OUTPUT
Note: To avoid potential problems, connect the output to an IF amplifier through a DC cut capacitor.
Avoid applying a direct current to output end of the ceramic filters.
For Signal Crash. Low Sensitivity on FM replace the 450KHz ceramic filter on PCB CF2002
This shows the original/bad filter. On the VX7R, the filter for the main receiver (CF2002) is the Toko part directly below the volume knob. The filter for the sub-receiver is the other part. On the VX6R there is only one filter.
Desolder the old filter. The filter is a 5-pin device, in/out and three ground. The three ground pins will take a little bit more effort to desolder. A Metcal 700F tip and pump-type solder sucker are my preferred tools. Clean up with additional flux and solder braid.
Solder the new part in place. Clean up any flux residue, inspect for any junk like solder balls or bridges and re-assemble.