Need circuit / resistor colour code Oricom UHF radio

kbushnz · Post by **kbushnz** » Sat Jan 11, 2014 8:36 pm

Anyone out there with an Oricom uhf088 radio ?
I need the colour code for the resistor which would normally live in front of the red power wire. Blew it clean off the board and burnt off the colour code.
Thanks in advance....

jonossiksilvia · Post by **jonossiksilvia** » Sun Jan 12, 2014 8:15 am

how did u manage to do that? :shock:

mudlva · Post by **mudlva** » Sun Jan 12, 2014 9:06 am

10cents you feed 24v into it ah???

monstr · Post by **monstr** » Sun Jan 12, 2014 11:29 am

Nope wasnt that ,it was out of my truck ,was running through a 24/12v -20 amp reducer ,was also running through a 10amp fuse which was still ok ,whats that sayong "sh#t happens"

kbushnz · Post by **kbushnz** » Sun Jan 12, 2014 2:24 pm

I suspect its seen a voltage spike. And this is the first resistor in the power circuit. So hopefully if its replaced it will come back to life. Gee monstr did a good job of it. lol

sibainmud · Post by **sibainmud** » Sun Jan 12, 2014 2:30 pm

kbushnz wrote:I suspect its seen a voltage spike.

48 volts, perhaps :wink:

Would explain the crap performance.

Cheers,

kbushnz · Post by **kbushnz** » Sun Jan 12, 2014 6:03 pm

Ok boys and girls I am almost there.. Got a photo from Phil Clarke....

Looks like a wire wound resistor however when I pulled it off its spool to measure the wires resistance it didn't have any...So I suspect its a zero OHM resistor used as a fuse....
Note: Phil tells me there is no markings on it...

Anyone care to speculate also...

tallsam66 · Post by **tallsam66** » Sun Jan 12, 2014 6:34 pm

Maybe its designed to blow if power is connected up in reverse to protect it.

callum007 · Post by **callum007** » Sun Jan 12, 2014 6:53 pm

I would have suggested it was a Varistor like you suggest for over voltage protection, but it doesn't look like a common varistor package.

Alan @ Navcom in Dunedin may have fixed some of these in the past and may be able to help, otherwise have you contacted Oricom to ask for a circuit diagram maybe?

kbushnz · Post by **kbushnz** » Sun Jan 12, 2014 7:19 pm

callum007 wrote:otherwise have you contacted Oricom to ask for a circuit diagram maybe?

Nah not as yet as I only got it yesterday lol :mrgreen:

That is my next step...

SamLogan · Post by **SamLogan** » Sun Jan 12, 2014 9:14 pm

try anything electronic in nelson. the guys there know their stuff and are really cheap as well. if it has no resistance as you said it will be something like a fuse or a variation off. i am sure if you sent them a picture they would be able to help. so is there any form of markings on it?

wjw · Post by **wjw** » Mon Jan 13, 2014 5:11 am

kbushnz wrote:
callum007 wrote:otherwise have you contacted Oricom to ask for a circuit diagram maybe?

Nah not as yet as I only got it yesterday lol
That is my next step...

I agree Try Alan at Navcom :-)

kbushnz · Post by **kbushnz** » Mon Jan 13, 2014 10:15 am

OK I have received the board diagrams from Oricom.... Only sent them an email this morning...
Looks like it is an RF choke... 1UH.... Used to filter out any stray alternating current ....
So just need to locate one .....

jonossiksilvia · Post by **jonossiksilvia** » Mon Jan 13, 2014 10:26 am

http://www.jaycar.co.nz/productView.asp ... rm=KEYWORD

SamLogan · Post by **SamLogan** » Mon Jan 13, 2014 2:27 pm

I deal with South Island Components. They are really knowledgeable for components like that. http://www.sicom.co.nz/xurl/function/pr ... ntent.html they have one there for 79c.

Sam

Need circuit / resistor colour code Oricom UHF radio

Need circuit / resistor colour code Oricom UHF radio

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Re: Need circuit / resistor colour code Oricom UHF radio

Re: Need circuit / resistor colour code Oricom UHF radio

Re: Need circuit / resistor colour code Oricom UHF radio

Re: Need circuit / resistor colour code Oricom UHF radio

Re: Need circuit / resistor colour code Oricom UHF radio

Re: Need circuit / resistor colour code Oricom UHF radio

Re: Need circuit / resistor colour code Oricom UHF radio

Re: Need circuit / resistor colour code Oricom UHF radio

Re: Need circuit / resistor colour code Oricom UHF radio

Re: Need circuit / resistor colour code Oricom UHF radio

Re: Need circuit / resistor colour code Oricom UHF radio

Re: Need circuit / resistor colour code Oricom UHF radio

Re: Need circuit / resistor colour code Oricom UHF radio