Alinco: repair alinco-dx70

peter1969

Newbie
Joined
Jul 10, 2021
Messages
1
Location
netherlands
i have a Alinco dx-70 . there was power from a another tranceiver go in to te alinco. stuppid antenna switch.
Now the alinco dont send power and there is no receive on all HF bands.
If i check the filter board there is relais RL515 where the receive antenna blocks. if i power on the alinco the relais jump on power and disconnect the antenna to receive, and when i send its jump to the receive option . looks its works the different way.
the relais are new and works correct . Looks like the filter board makes the wrong switch.
What can be damage if there was power in to the HF antenna connector ?
On the 6M its works oke, but thats the another VHF antenna connector .
thanx for reading.
regards Peter
filterboard schematic in pdf files because ther are 2 deference filterboards fom alinco dx-70. this is the good one.
 

Attachments

KB4MSZ

Billy
Premium Subscriber
Joined
Mar 12, 2018
Messages
708
Location
Tampa, Florida
Direct RF power into the antenna port during receive can be millions or even billions of times more than the front end of the radio is designed to work with. It is hard to say exactly what needs repair, it can be extensive.
 
Top