Yaesu FT-4700 pilot lamp replacement questions
 

I have a Yaesu FT-4700RH with two burned-out pilot lamps in the
control head. Can anyone (perhaps someone with a service manual)
tell me what the bulb is? Also, can I unsolder them from the back
of the board and pull them through, or do I have to remove the
board to get to the other side? If so, how do I do that..?

Thanks & 73,

--
Bill Brelsford, K2DI

"W M Brelsford, K2DI" wrote in message ...
I have a Yaesu FT-4700RH with two burned-out pilot lamps in the
control head. Can anyone (perhaps someone with a service manual)
tell me what the bulb is? Also, can I unsolder them from the back
of the board and pull them through, or do I have to remove the
board to get to the other side? If so, how do I do that..?

Thanks & 73,

I haven't seen that radio, but if it has the orange "omniglow"
lighting, the bulbs "12v" are colored with orange shells, and can be
ordered from yeasu. On my 2500m, which has that lighting, you pull the
control head by undoing the hex screws. Then you undo the screws and
pull the board out from the back. The bulbs are soldered directly to
the board. They come out the front with the leads soldered down to the
board. My 2500m has four of them. It's easy once you get in there and
see it. Or should be anyway... MK

"W M Brelsford, K2DI" wrote in message ...
I have a Yaesu FT-4700RH with two burned-out pilot lamps in the
control head. Can anyone (perhaps someone with a service manual)
tell me what the bulb is? Also, can I unsolder them from the back
of the board and pull them through, or do I have to remove the
board to get to the other side? If so, how do I do that..?

Thanks & 73,

I haven't seen that radio, but if it has the orange "omniglow"
lighting, the bulbs "12v" are colored with orange shells, and can be
ordered from yeasu. On my 2500m, which has that lighting, you pull the
control head by undoing the hex screws. Then you undo the screws and
pull the board out from the back. The bulbs are soldered directly to
the board. They come out the front with the leads soldered down to the
board. My 2500m has four of them. It's easy once you get in there and
see it. Or should be anyway... MK

Well, my FT-4700H Technical Supplement lists those lamps as:

Parts #PL6001 thru PL6004 with the number Q1000074, the nomenclature "Lamp"
and the number T1-9V60R-0R06.

The service manual unfortunately doesn't show how to remove/replace those
lamps.

GL -- Dino KLØS/4

Well, my FT-4700H Technical Supplement lists those lamps as:

Parts #PL6001 thru PL6004 with the number Q1000074, the nomenclature "Lamp"
and the number T1-9V60R-0R06.

The service manual unfortunately doesn't show how to remove/replace those
lamps.

GL -- Dino KLØS/4