Texas star 667V

[295 antenna]

Well ive gone and done it now. I using my 667V and i forgot to put the fan on it and i suddenly lost my receive and i saw smoke so i waited a bit and opened it up and everything appears ok so i took the cover off the following day hooked it up and when i tried it i noticed smoke coming from the on button area. Any ideas? everything still looks clean and not burnt.

[MDYoungblood]

You may have to get out the old magnifying glass, there is really only 4 things that might smoke in it, the transistor naturally, a capacitor or resistor and possibly a trace. I have never seen a switch (bulbs yes) in a TS go bad but there is always the first time. Look carefully for any discoloration in the components in that area.

3's

Greg

[295 antenna]

Thanks MD i was thinking trace my self but i wanted a second opinion. on the texas star the heat sink is on the bottom so i had it upside down so now i need to look under the board.

[295 antenna]

Is this a metal oxide resistor? (75 ohm)

resistor (1).jpg

[MDYoungblood]

http://wonderfulengineering.c ... -resistor/

3's

Greg

[295 antenna]

lol I got that Md but what im having trouble is find one that looks like what i have. It is large round a standard pencil diameter.

[MDYoungblood]

The larger they are the more wattage they can handle.

3's

Greg

[295 antenna]

oh ok so how do you tell what the wattage is or is that a schematics thing

[295 antenna]

ok got it MD 4 watts look at the schematics ..