30-09-2016, 04:33 PM
Ken
I have a Yaesu VX7R handheld with the same issue although the ceramic filters in it are 450KHz rather than 455KHz and, yes, DC on the filter itself appears the cause of the issue. 2M FM sensitivity was around -50dBm with the faulty filter in circuit.
A Yaesu repairer in NSW supposedly had them in stock last year and I ordered them but they never did arrive. The VX7R remains faulty even now.
From my original enquiry email:
"Price and availability of TWO replacements for CF2002 and CF2003 in a VX7R handheld.
Original part was a Toyo ALFYM450F, original part number H3900531."
Maybe I should see if they area still available.
PS: This part has been replaced by Yaesu PN H3900572A or Yaesu TOKO A50FQ filter.
PPS: Just tried phoning them (RF Repairs at Wyong) and phone service has been disconnected so I guess that isn't a good sign.
PPPS: Just ordered some from radioshackus on eBay under listing
Replacement for YAESU VX-6R VX-7R Signal Crash 450F Filter 3 PCS Bundle
also available...
Replacement for YAESU FT-857/897 Signal Crash 455E/455G/455H Filter 3 PCS Bundle
Replacement for Kenwood TM-D710 Signal-Crash Filters 450E/450G Design issue
Kenwood TS-2000 Signal-Crash Filters 455E/455G Replacement Kits
YAESU FT-1802M Signal-Crash Filters 450F/450G Replacement Kits
Copy and paste the appropriate description into the eBay search box...
73 Doug VK4ADC
I have a Yaesu VX7R handheld with the same issue although the ceramic filters in it are 450KHz rather than 455KHz and, yes, DC on the filter itself appears the cause of the issue. 2M FM sensitivity was around -50dBm with the faulty filter in circuit.
A Yaesu repairer in NSW supposedly had them in stock last year and I ordered them but they never did arrive. The VX7R remains faulty even now.
From my original enquiry email:
"Price and availability of TWO replacements for CF2002 and CF2003 in a VX7R handheld.
Original part was a Toyo ALFYM450F, original part number H3900531."
Maybe I should see if they area still available.
PS: This part has been replaced by Yaesu PN H3900572A or Yaesu TOKO A50FQ filter.
PPS: Just tried phoning them (RF Repairs at Wyong) and phone service has been disconnected so I guess that isn't a good sign.
PPPS: Just ordered some from radioshackus on eBay under listing
Replacement for YAESU VX-6R VX-7R Signal Crash 450F Filter 3 PCS Bundle
also available...
Replacement for YAESU FT-857/897 Signal Crash 455E/455G/455H Filter 3 PCS Bundle
Replacement for Kenwood TM-D710 Signal-Crash Filters 450E/450G Design issue
Kenwood TS-2000 Signal-Crash Filters 455E/455G Replacement Kits
YAESU FT-1802M Signal-Crash Filters 450F/450G Replacement Kits
Copy and paste the appropriate description into the eBay search box...
73 Doug VK4ADC
Doug VK4ADC @ QG62LG51
http://www.vk4adc.com
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http://www.vk4adc.com
This Forum is only going to be as interesting as the posts it contains.
If you have a comment or question, post it as it may trigger or answer the query in someone else's mind.