**POP** Sound with spectra
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**POP** Sound with spectra
I have a 800mhz spectra works great except for a "POP" that occurs at the end of a transmission and after each button is pressed. I have tried different speakers, power supplies and ground, however it is still occuring. I have read alot about the caps going bad. Is there a CAP on the audio side that might be causing this sound???
Any help is appriciated...
-Jon Gage
Any help is appriciated...
-Jon Gage
Re: **POP** Sound with spectra
Sounds like the classic cap problem the Spectras are plagued with.
Give Will a PM here, he's right good at fixing them.
Give Will a PM here, he's right good at fixing them.
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- Posts: 930
- Joined: Fri Jun 23, 2006 11:21 am
Re: **POP** Sound with spectra
Yep, thats exactly what causes the sound. Get the caps changed now before they do more damage.
Re: **POP** Sound with spectra
There are up to 5 caps that go bad and can cause the POP in the speaker.
The audio amplifier IC can also be bad from a shorted speaker lead, or from bad capacitors.
The audio amplifier IC can also be bad from a shorted speaker lead, or from bad capacitors.
Re: **POP** Sound with spectra
Thank You everyone for your help. THIS BOARD IS GREAT!!! Will be doing the reasearch to replace the caps ASAP!
-Jon
-Jon
Re: **POP** Sound with spectra
Jon,
If the audio power amp IC needs replacing, I have some new ones in stock.
Just a note here, we do not use electrolytic capacitors in that application for replacement.
If the audio power amp IC needs replacing, I have some new ones in stock.
Just a note here, we do not use electrolytic capacitors in that application for replacement.
- ke4zdg
- Posts: 85
- Joined: Fri Jun 30, 2006 6:05 am
- What radios do you own?: Spectras, Sabers, MCS/MTS2000
Re: **POP** Sound with spectra
I replaced all my electrolytics with tantalums. No more leaks ever.
Re: **POP** Sound with spectra
ke4zdg wrote:I replaced all my electrolytics with tantalums. No more leaks ever.
Good job Doctor Zoidlberg
Re: **POP** Sound with spectra
There's a SNAP, a CRACKLE, A POP and a host of
other unhappy sounds including a nice normal
audio on power up only to sharply drop to a
distorted diminishing whine.
There can also be a very unpleasant odor
which you can smell upon opening the upper
or lower lids of the Spectra. It is a rancid
odor which suggests that damage has
already been done.
Will does a great job replacing the
caps and , where possible, in reparing
the damaged traces or other surfaces
upon which the corrosive discharge falls.
other unhappy sounds including a nice normal
audio on power up only to sharply drop to a
distorted diminishing whine.
There can also be a very unpleasant odor
which you can smell upon opening the upper
or lower lids of the Spectra. It is a rancid
odor which suggests that damage has
already been done.
Will does a great job replacing the
caps and , where possible, in reparing
the damaged traces or other surfaces
upon which the corrosive discharge falls.