In article ,
says...

snippety

I assume you mean the two caps to the right of the IC 9315XB ... ?

That would be them, yes. Those are the two key suspects for an
awful lot of problems, including the tone you describe and dim or no
display.

I can see that D43KXA7JA7BK is printed on the label at the back of the
radio, as the ID No.

That's more like it. What you have there is a 35-40 watt output
unit, dash-mount, secure-capable (with the appropriate daughterboard,
encryption hybrid, key variable loader, and cable), 128-mode (channel)
capable. The 'A7' towards the end indicates the control head type, in
this case a full-keypad unit.

Such radios rarely have trouble covering the amateur 2m band in
its entirety, no matter if they're Range 1 or Range 2 units.

Happy fixing.


--
Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute.
(Known to some as Bruce Lane, ARS KC7GR,
kyrrin (a/t) bluefeathertech[d=o=t]calm -- www.bluefeathertech.com
"If Salvador Dali had owned a computer, would it have been equipped
with surreal ports?"