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Kenwood TS50 Problem

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  #1  
Old 06-06-2010, 05:31 AM
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Default Kenwood TS50 Problem


When first powered up (cold start), my TS-50 has no receive and the S-meter shows full scale!
This occurs for about 30-45 seconds and then the S-meter slowly recedes and audio is received.
Everything else seems to be OK!

Any solutions?

Thank you

Rick


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Old 06-06-2010, 05:53 AM
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Default Kenwood problem

Have you done the full microprocessor reset as described

in your manual ??

Let us know.....Mac

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  #3  
Old 06-06-2010, 09:18 AM
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Thats odd my wifes TS-50 and matching AT-50 Tuner have been trouble free for years!!I would do as mentioned above and do a full reset.
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Old 06-06-2010, 02:09 PM
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Full reset did not change anything!
Thanks for suggestion!

Rick

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Old 06-06-2010, 03:15 PM
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It's been quite a while so I can't tell you exactly what the problem is, but I've seen it happen. It has to do with a voltage regulation problem, or a DC/DC regulator or whatever the @#$ thing is called. I can tell you that unless you are very very good at it, don't try correcting it your self. Send/take it to someone who can deal with it.
I've had two TS-50's, the first had that problem, the second didn't. That was the only thing that ever gave me any trouble with either of them (aside from me doing something I shouldn't have done to start with ).
- 'Doc

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Old 06-07-2010, 09:52 AM
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That appears to be the symptom/solution!
Now does anyone know which regulator?

Thanks,

Rick

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Old 07-25-2010, 03:55 PM
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I know that I am late to the party, but change out the memory battery.(2032?)
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Old 07-30-2010, 08:53 PM
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Default I have exactly the same TS50 problem!

I've been using the TS50S for a couple of years, and the exact problem described by VE3UG just developed a few weeks ago - at first intermittently, now every time I power it up from a cold start. The delay before normal reception varies depending on band and mode, but it takes a maximum of 30-45 seconds before settling down to otherwise normal operation. It doesn't seem to happen (or at least not for as long) if it's been powered down for less than a few minutes, so warmup is somehow involved.

If the audio volume is at or above normal level, there's also often a loud feedback-type squeal that only disappears when the volume is turned all the way down or after normal operation resumes. The squeal occurs with or without headphones. Keying the transmitter cuts off the squeal and switches the s-meter to apparently normal transmit operation in all modes. Receive still does not work until after the noted delay.

This isn't a serious problem for my normal operation, but it seems to be progressing - i.e. it's becoming more consistent and the delay time seems to be slowly increasing. I assume that whatever is causing the problem - a dc-dc converter sounds like a likely candidate - will probably fail sooner rather than later and may damage other components.

I'm hesitant to reset the processor unless it's likely to fix the problem - which it didn't do for VE3UG. I can change the battery, but I don't understand how that might help the problem.

I look forward to additions to this thread, hopefully some with specific solutions for the problem.

Aloha from Kona,

AH6KW

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