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- DJ560
-
- If you are a proud Alinco Handi Owner, as I am, you need to know
- about one of the inherant design flaws that the Alinco DJ-560 and
- similar model hand-helds have. * First, DON'T take this as a slam
- against a very good performing radio, but rather as an awareness of a
- possible flaw that could shorten the life of the RF finals in these
- fine radios.
-
- Here is the potential problem:
- IF, for any reason, you notice that the BNC connector for the antenna
- begins to "TWIST" as if it is even the slightest bit loose, while you
- install or remove the antenna or any other BNC connector, DO NOT CONTINUE
- USE OF YOUR HAND-HELD UNTIL YOU HAVE IT REPAIRED. This is on accord of
- the experience that the same has happened to myself. ---- THAT "twisting"
- motion is only because the BNC connector has become loose from normal
- use, BUT it has likely broken the connection of the center conductor
- of the BNC antenna connector from the circuit card that the RF final
- is mounted on. With an open connection, one can only imagine the
- devastation that is rendered to the RF amp! The manufacturer did not
- install any copper or silver type of SOLID conductor between the circuit
- card and the center conductor of the BNC, but instead created the connection
- by nothing more than constructing a build-up of solder to complete the gap
- of about 1/32 to 3/64 of an inch of applied solder. The inherant looseness
- that will inevitably occurr will tear the connection of solder from the
- center conductor of the BNC connector, thus rendering a very high SWR for the
- RF finals to realize. This is a very simple problem to repair, however a
- very time consuming aspect of electronic "Micro-surgery". Unless you are
- extremely adept in this type of repair, it is not recommended that YOU
- attempt the repair yourself. Recommended is that you return the radio to
- Alinco or any other AUTHORIZED repair facillity. I was lucky that I repaired
- mine before any damage was incurred. Twenty two years of Micro-mini repair
- experience tells me to pass this on to all...(..As the "fix-it man" says, pay
- for it now, or really pay for it later....(vhf/uhf finals CAN be expensive))....
- 73's de Pete, N1GEV Bath, Maine FN53
- N1GEV@KA1RTW.ME.USA.NA
-
-