Yamaha T-33 no display lights

[beatdrum]

I have a Yamaha AM-FM T-33 tuner that works fine, except for the display lights. None, zero, zilch, lights work. It has been that way since I bought it used at a garage sale. It seems like it would be a single problem that might be easily fixed, as opposed to every single display light has burned out. Any ideas what to look for?

 

[kretinus]

I believe it has a single 14.5v @ 280ma miliamp bulb to back light the display.

 

[beatdrum]

Would replacing that one bulb allow me to see frequency and any other lit up functions?

 

[avionic]

They are 14.5v@ ( 80ma ) and there is probably 2-4 of them. PM dgwojo for light bulbs with wire leads approx. 6-8" long.

 

[terra1]

Are there any internal fuses you can check? Sometimes manufacturers hide them under the chassis, so you have to remove the bottom cover. Not familiar with the Yamaha so I can't say if that's the problem. Just trying to brainstorm if it's not just individual lights to be replaced. My Pioneer SX-939 meters and dial lamps shorted out except indicator lights like aux, speakers which draw from AC. Replaced the fuse and they came back.

 

[avionic]

Yes , but its the main fuse. Main fuse blows -unit is totally dead. No light bulb or auxillary circuit fuses.

 

[kretinus]

They are 14.5v@ ( 80ma ) and there is probably 2-4 of them. PM dgwojo for light bulbs with wire leads approx. 6-8" long.

I was thinking one on the end of a plastic housing that covered the entire illuminated portion of the display, have to dig it out tomorrow and look...

but I do recall it pulling in the stations around here fairly well

 

[avionic]

It may only be one.I was mistakenly thinking the T33 was similar to the T-1/2.
Anyway yamaha's standard lamp for these is 14.5 volt @ 80ma. Dgwojo may have some 14v @ 80ma .But I'd get a schematic and double check the illumination situation for that jewel.:yes: