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Rod, i have an Uniden Solara that do not receive I checked

Customer Question
hi rod, i have an...
hi rod, i have an Uniden Solara that do not receive
I checked the discriminator, and see signals until the input to the demodulator
but don have audio output..any suggest? Thanks a lot for your help
Submitted: 1 year ago.Category: Consumer Electronics
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Answered in 5 hours by:
3/22/2016
Electronics Technician: Pete, Electronic Engineer replied 1 year ago
Pete
Pete, Electronic Engineer
Category: Consumer Electronics
Satisfied Customers: 18,338
Experience: Over 16 years of experience installing and repairing electronics.
Verified

Hi Luis,

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Customer reply replied 1 year ago
hi, Pete
Customer reply replied 1 year ago
Are you working on my question?
Customer reply replied 1 year ago
Sorry for been late, but i was out my computer today
Customer reply replied 1 year ago
Hi Pete, are you there? Why I can't see your answer?
Thanks
Electronics Technician: Pete, Electronic Engineer replied 1 year ago

Yes, I am here ,thanks for replying back to me.

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Electronics Technician: Pete, Electronic Engineer replied 1 year ago

Check that the volume is turned up and the radio is not muted.

Check that the radio is not on the weather channel otherwise it will mute the speaker.

Try connecting an external speaker and let me know if you can hear any sound through it...

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Customer reply replied 1 year ago
Nice to talk with you..
I already checked the speaker and it is fine.
The problem is on the demodulator.. Are you familiarized with that part of the circuit?
Electronics Technician: Pete, Electronic Engineer replied 1 year ago

I am not familiar with the internal circuitry on this particular model.

Are you troubleshooting at component level?

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Customer reply replied 1 year ago
I am inside the circuit
Customer reply replied 1 year ago
I am cheking it with instruments, like RF generator, osciloscope, etc
Electronics Technician: Pete, Electronic Engineer replied 1 year ago

Are you getting any voltage to the speaker?

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Customer reply replied 1 year ago
I have figured out, that the problem is on the discrimator...the signal go accross the 455 KHz filter
But it doesn't demodulate
Customer reply replied 1 year ago
I also replaced the chip of the deodulator
But the problem remains
Customer reply replied 1 year ago
Any suggestion?
Electronics Technician: Pete, Electronic Engineer replied 1 year ago

It could be that one of the other components on the discriminator has failed... if you have schematics available you should be able to track it down.

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Customer reply replied 1 year ago
the problem is just that there is no schematics for this radio...Is this why I requested help from the site
Customer reply replied 1 year ago
Do you know some body with experience with the circuitry of this radio?
Electronics Technician: Pete, Electronic Engineer replied 1 year ago

I don't know anyone who works on these radios at component level;

in the absence of schematics I would use another radio as a guide for expected test readings.

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Customer reply replied 1 year ago
I know, but i have just this unit failed and no possibility to reach other
Electronics Technician: Pete, Electronic Engineer replied 1 year ago

Ok, I'll see if the other experts have any further ideas...

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Customer reply replied 1 year ago
ok, thanks a lot for your support
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Pete
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Category: Consumer Electronics
Satisfied Customers: 18,338
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Experience: Over 16 years of experience installing and repairing electronics.

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