Re: [Elecraft] Dead K3 RX, no Power Out

[Don Wilhelm]

Martin,

I would try giving each of the TMP cables a slight twist.
Secondly, I would remove and reseat the front panel board.

No guarantee that will correct it, but it is a good starting point.

73,
Don W3FPR

On 6/11/2016 7:35 AM, Martin wrote:

'Crafters,

i have a 7 year old K3 #28xx causing me a headache. I built this (and 
other K3s) myself and modified it quite often, so am fairly familiar 
with it's innards.


The issue is a dead RX ( no signals on any band, just noise from spkr) 
and no power out on any band ( display shows 0.0 Watts) after - say 30 
minutes - of just running in rx . When i hit the case with my hand - 
like a slap - rx comes back to life and power out works again. I 
suspect something has come loose causing a slack joint. Something that 
is involved in RX AND TX.

So where should i check?  Probably the synth boards?


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[Elecraft] Dead K3 RX, no Power Out

[Martin]

'Crafters,

i have a 7 year old K3 #28xx causing me a headache. I built this (and 
other K3s) myself and modified it quite often, so am fairly familiar 
with it's innards.


The issue is a dead RX ( no signals on any band, just noise from spkr) 
and no power out on any band ( display shows 0.0 Watts) after - say 30 
minutes - of just running in rx . When i hit the case with my hand - 
like a slap - rx comes back to life and power out works again. I suspect 
something has come loose causing a slack joint. Something that is 
involved in RX AND TX.

So where should i check?  Probably the synth boards?

Thanks.

--

Ohne CW ist es nur CB..

73, Martin DM4iM
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Re: [Elecraft] Dead K3

[Scott Ellington]

On 5/15/2016 22:31, todd ruby wrote:

Thanks to everyone who gave me some ideas. In fact what I needed to do was to 
reset the circuit breaker on the K3. All is well 59+20 in France!


I wonder why the circuit breaker tripped in the first place, though.  
There's usually a reason, which can lead to unpleasant surprises.


73,

Scott  K9MA

--
Scott Ellington  K9MA
Madison, Wisconsin, USA

k...@sdellington.us

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Re: [Elecraft] Dead K3

[todd ruby]

Thanks to everyone who gave me some ideas. In fact what I needed to do was to 
reset the circuit breaker on the K3. All is well 59+20 in France!

73

todd

WB2ZAB
> On May 15, 2016, at 6:39 PM, David Anderson  wrote:
> 
> Hi Todd,
> 
> Has there been a power cut? 
> 
> No seriously, check if your rig is getting power OK. 
> 
> Always start at the Power Station and work your way forward.
> 
> Check connectors and fuses.
> 
> 73 from David GM4JJJ
> 
>> On 15 May 2016, at 23:05, todd ruby  wrote:
>> 
>> This is a new and disturbing issue. I had just made 2 contacts one to Congo 
>> on CW on 15 one to Serbia on SSB on 20 and I was just monitoring a station 
>> and reading something when all of a sudden his signal went silent and I had 
>> no output power whatsoever! I did not touch the radio at all, it just went 
>> dead on xmit and rx. 
>> 
>> Does anyone have any idea what has happened?
>> 
>> thanks in advance
>> 
>> todd
>> 
>> WB2ZAB
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> 

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Re: [Elecraft] Dead K3

[David Anderson via Elecraft]

Hi Todd,

Has there been a power cut? 

No seriously, check if your rig is getting power OK. 

Always start at the Power Station and work your way forward.

Check connectors and fuses.

73 from David GM4JJJ

> On 15 May 2016, at 23:05, todd ruby  wrote:
> 
> This is a new and disturbing issue. I had just made 2 contacts one to Congo 
> on CW on 15 one to Serbia on SSB on 20 and I was just monitoring a station 
> and reading something when all of a sudden his signal went silent and I had 
> no output power whatsoever! I did not touch the radio at all, it just went 
> dead on xmit and rx. 
> 
> Does anyone have any idea what has happened?
> 
> thanks in advance
> 
> todd
> 
> WB2ZAB
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[Elecraft] Dead K3

[todd ruby]

This is a new and disturbing issue. I had just made 2 contacts one to Congo on 
CW on 15 one to Serbia on SSB on 20 and I was just monitoring a station and 
reading something when all of a sudden his signal went silent and I had no 
output power whatsoever! I did not touch the radio at all, it just went dead on 
xmit and rx. 

Does anyone have any idea what has happened?

thanks in advance

todd

WB2ZAB
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Re: [Elecraft] Dead K3 all of a sudden

[Gary Smith]

Unsure of what may be the issue, but it would maybe be a worthwhile 
thing to restore from your last good configuration that you stored 
with the K3 utility. If you do that and there is still a problem, 
then it is not something with your software setup and if so, the 
answer would be outside the K3 or a failed part within the K3.

At least that would be one variable to be excluded.

73,

Gary
KA1J


> Hello
> I was just on 20M everything working perfectly. I went up to take a shower, 
> came back down and now there is 0W output power, all TX calibrations have 
> failed and I can´t hear any signals on any band.
> 
> Would could possibly happened.
> 
> Any ideas would be much appreciated,
> 
> 73
> 
> todd
> 
> WB2ZAB
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[Elecraft] Dead K3 all of a sudden

[todd ruby]

Hello
I was just on 20M everything working perfectly. I went up to take a shower, 
came back down and now there is 0W output power, all TX calibrations have 
failed and I can’t hear any signals on any band.

Would could possibly happened.

Any ideas would be much appreciated,

73

todd

WB2ZAB
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Re: [Elecraft] Dead K3

[Scott]

Before you crack the chest or of your K3, check the APP connectors on 
the back.


Scott
AD5HS

On 11/23/2015 2:52 PM, Jon Zaimes wrote:

My main K3 (s/n 3021) was working fine but suddenly wouldn't power up.



Not sure if I had it on when I left the shack but when I came back hours
later it was off. When tried to turn it on using the Power button, nothing.
Power supply works fine with other K3 so that's not an issue.



Not immediately seeing anything in the troubleshooting section of manual,
though did try to do an init by holding shift/lo button when hitting the
Power button but no change.



Getting ready to open the box to investigate. Any tips?



73/Jon AA1K



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[Elecraft] Dead K3

[Jon Zaimes]

My main K3 (s/n 3021) was working fine but suddenly wouldn't power up.

 

Not sure if I had it on when I left the shack but when I came back hours
later it was off. When tried to turn it on using the Power button, nothing.
Power supply works fine with other K3 so that's not an issue.

 

Not immediately seeing anything in the troubleshooting section of manual,
though did try to do an init by holding shift/lo button when hitting the
Power button but no change.

 

Getting ready to open the box to investigate. Any tips?

 

73/Jon AA1K

 

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[Elecraft] Dead K3 - Comes Alive!

[Dr. William J. Schmidt, II]

Well sure enough, the buys at Elecraft (Thanks Harold!!!) shipped me parts
overnight and my K3 came to life.  They very smartly shipped a new Q2 (bad)
and the "K3 12DC Current Mod Kit".  While my radio had the kit installed
from the factory, the kit had two very important parts.  D35 was shorted in
my radio.  D34 comes in the kit but is the same as D35. so there's my
replacement. But one additional part. the self-healing 1A fuse became my
bridge across the empty Q2 spot to test out the rest of the radio before I
installed the new Q2.  It all worked perfect, and my K3 is back on track to
be on the air starting Saturday afternoon on J6.  Now more than ever, I'm
looking forward to the trip.  Don't let anyone tell the service at Elecraft
isn't first class.

 

 

Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ

 

Owner - Operator

Big Signal Ranch

Staunton, Illinois

 

email:    b...@wjschmidt.com

 

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[Elecraft] Dead K3

[Dr. William J. Schmidt, II]

Well after talking with support today, I returned home this evening and
removed D35.  Sure enough, shorted.  Then plugged in the radio and tested
it.  Nothing.  Made voltage checks around Q2.  13.8VDC at the source, 2.5V
at the Drain and 2.5V at the gate.  Gate stays at 2.5V (well drops to 2.4V)
whit power on button pressed. but drops to 0V on the other side of R77 so I
know the front panel circuitry works.  Definitely a bad Q2.  Gotta get one
quick.  Cant test beyond that.  Elecraft Technical Support is simply second
to none!

 

 

Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

 

Owner - Operator

Big Signal Ranch

Staunton, Illinois

 

email:    b...@wjschmidt.com

 

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Re: [Elecraft] Dead K3

[Mike Morrow]

> I was able to do some diagnostic work to determine that D35 is shorted. How
> this could happen is a complete mystery?  I've never had anything plugged
> into J11 (the 12V accessory out jack), so don't quite understand this.

That is odd.  About the only thing one would expect to cause that is an
external power source of reverse polarity connected to J11...but then one
would expect F2 to blow before D35 was destroyed.  Strange, especially when
nothing at all has been connected to J11.

But, how are you sure, short of disconnecting one end of D35 and measuring
resistance forward and reverse, that it *is* D35?  Shorts anywhere downstream
of D34 would show identical results.  C272 could be shorted...a trace in
the path could be shorted...C220 or J11 could be shorted (but then F2 should
blow).

> The trace from the end of D34 to RF choke RFC48 is a little over-heated but
> still usable (well, I never had plans to use external power for anything so
> it won't be a problem).  I'll discuss this with tech support in the AM and
> this may be as easy as lifting D35 and it's good to go.  Maybe...

Were it mine, there's no doubt what I'd do immediately...cut one lead of D35
and verify that the short is cleared on both sides of D34.  If no fault is
detected, apply DC power and see if the radio will power up properly.  That
would show no damage has been caused to Q2.

If there is still a ground fault shown, I'd cut D34 to isolate all of the path
to J11.  It could be that D35 isn't the problem after all.

In any event, the solution should be trivial and quick since you don't need
to supply anything from J11.  Worst case, cut D34 (not D35) to isolate all
possible faults and troubleshoot the short, some time later.

Mike / KK5F
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Re: [Elecraft] Dead K3

[Dr. William J. Schmidt, II]

I was able to do some diagnostic work to determine that D35 is shorted.  How
this could happen is a complete mystery?  I've never had anything plugged
into J11 (the 12V accessory out jack), so don't quite understand this.  The
trace from the end of D34 to RF choke RFC48 is a little over-heated but
still usable (well, I never had plans to use external power for anything so
it won't be a problem).  I'll discuss this with tech support in the AM and
this may be as easy as lifting D35 and it's good to go.  Maybe...


Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

Owner - Operator
Big Signal Ranch
Staunton, Illinois

email:  b...@wjschmidt.com


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm
Sent: Sunday, July 29, 2012 8:22 PM
To: b...@wjschmidt.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Dead K3

Bill,

Your "cc" to k3supp...@elecraft.com did not show on what I perceive as your
original post, so you may want to send something separate.
OTOH, since you are in a bit of a hurry (laving on Friday), and support has
to wade through the entire weekend's worth of email, you may do better to
phone 831/763-4211 first thing  (8AM) California time - well, leave enough
time for Dale and Howard to settle down to their work positions and have a
few sips of thier morning beverage.

In the meantime, check the obvious - remove the APP from the back of the
K3 and check the voltage with your DMM - there is a possibility that there
is a problem with the DC power cable.  If you assembled that power cable,
take a look at the end of it - the blades of the connectors must be clipped
securely over the spring fingers in the housing.  If you need a diagram of
how it should look,  check figure 29 on page 37 of the XV transverter
assembly manual -
http://www.elecraft.com/manual/Assembly%20Manual%20XV50,144,%20222%20Rev%20D
.pdf


73,
Don W3FPR

On 7/29/2012 7:48 PM, Dr. William J. Schmidt, II wrote:
> Thanks for the help.  I already "cc'd" them on the original post so 
> they will know... and I will be on the phone tomorrow ASAP.  The 
> customer service is excellent.  My fear is, leaving on Friday... if 
> it's anything more than pushing a button/ resetting something/ 
> removing a module... this radio stays home.
>
> Man the article I'm writing on Island radio is not looking pretty...
>
>
>
> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>
> Owner - Operator
> Big Signal Ranch
> Staunton, Illinois
>
> email:  b...@wjschmidt.com
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale Boresz
> Sent: Sunday, July 29, 2012 6:34 PM
> To: b...@wjschmidt.com
> Cc: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Dead K3
>
> Bill,
>
> Sorry, that's about the only thing that comes to mind that you could 
> try without some disassembling. I agree, it sounds like D28 is not the
issue.
> I'd call Elecraft Tech Support tomorrow and I'll bet they can help you
out.
>
> Best wishes for a quick and easy fix!
>
> 73, Dale
> WA8SRA
>
>
>
> On 7/29/2012 7:16 PM, Dr. William J. Schmidt, II wrote:
>> Thanks for the tip... Measured about 995 ohms at the connector, so it 
>> appears D28 is still intact.
>>
>>
>> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>>
>> Owner - Operator
>> Big Signal Ranch
>> Staunton, Illinois
>>
>> email:  b...@wjschmidt.com
>>
>>
>> -Original Message-
>> From: elecraft-boun...@mailman.qth.net 
>> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale Boresz
>> Sent: Sunday, July 29, 2012 6:07 PM
>> To: elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] Dead K3
>>
>> If you can, check the resistance across the K3 "12VDC IN" Power Pole 
>> connections (after you've disconnected your Power Supply of course).
>>
>> On my K3, an internal zener-like diode (D28 on the RF Board) 
>> evidently gave up its life to protect the radio from an overvoltage, 
>> and evidently the failure mode is a short circuit. This diode goes 
>> straight to ground immediately after the 6A inline fuse. I think the 
>> fuse is an auto-resetting fuse, so you can probably assume it is 
>> still completing the circuit for the purposes of your resistance 
>> measurement. If you measure a dead short, the culprit is likely D28.
>>
>> 73, Dale
>> WA8SRA
>>
>>
>>
>>
>> On 7/29/2012 6:32 PM, Dr. William J. Schmidt, II wrote:
>>> So I was testing out my new K3 before I take it to J6 next week for 
>>>

Re: [Elecraft] Dead K3

[Dr. William J. Schmidt, II]

Thanks Don... In my haste, I omitted the "K3" off the front of the
"K3Support" email address on my post... so no telling where it went.  My
fault.   

I'll get the K3 apart tonight so I can do some troubleshooting from the
schematic.  Will determine first if there is power inside the radio and how
far in.  Then give support a call in the AM as you suggest.  

The unfortunate part is that I spent weeks prepping for this trip and
thought I had everything working perfectly (including the antenna, radio,
and all of the laptop software and interfaces).  This will be a full week
for me at work ahead of vacation so I won't have the time to really spend
troubleshooting like I would otherwise.

We will go back in November though...


Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ

Owner - Operator
Big Signal Ranch
Staunton, Illinois

email:  b...@wjschmidt.com


-Original Message-
From: Don Wilhelm [mailto:w3...@embarqmail.com] 
Sent: Sunday, July 29, 2012 8:22 PM
To: b...@wjschmidt.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Dead K3

Bill,

Your "cc" to k3supp...@elecraft.com did not show on what I perceive as your
original post, so you may want to send something separate.
OTOH, since you are in a bit of a hurry (laving on Friday), and support has
to wade through the entire weekend's worth of email, you may do better to
phone 831/763-4211 first thing  (8AM) California time - well, leave enough
time for Dale and Howard to settle down to their work positions and have a
few sips of thier morning beverage.

In the meantime, check the obvious - remove the APP from the back of the
K3 and check the voltage with your DMM - there is a possibility that there
is a problem with the DC power cable.  If you assembled that power cable,
take a look at the end of it - the blades of the connectors must be clipped
securely over the spring fingers in the housing.  If you need a diagram of
how it should look,  check figure 29 on page 37 of the XV transverter
assembly manual -
http://www.elecraft.com/manual/Assembly%20Manual%20XV50,144,%20222%20Rev%20D
.pdf


73,
Don W3FPR

On 7/29/2012 7:48 PM, Dr. William J. Schmidt, II wrote:
> Thanks for the help.  I already "cc'd" them on the original post so 
> they will know... and I will be on the phone tomorrow ASAP.  The 
> customer service is excellent.  My fear is, leaving on Friday... if 
> it's anything more than pushing a button/ resetting something/ 
> removing a module... this radio stays home.
>
> Man the article I'm writing on Island radio is not looking pretty...
>
>
>
> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>
> Owner - Operator
> Big Signal Ranch
> Staunton, Illinois
>
> email:  b...@wjschmidt.com
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale Boresz
> Sent: Sunday, July 29, 2012 6:34 PM
> To: b...@wjschmidt.com
> Cc: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Dead K3
>
> Bill,
>
> Sorry, that's about the only thing that comes to mind that you could 
> try without some disassembling. I agree, it sounds like D28 is not the
issue.
> I'd call Elecraft Tech Support tomorrow and I'll bet they can help you
out.
>
> Best wishes for a quick and easy fix!
>
> 73, Dale
> WA8SRA
>
>
>
> On 7/29/2012 7:16 PM, Dr. William J. Schmidt, II wrote:
>> Thanks for the tip... Measured about 995 ohms at the connector, so it 
>> appears D28 is still intact.
>>
>>
>> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>>
>> Owner - Operator
>> Big Signal Ranch
>> Staunton, Illinois
>>
>> email:  b...@wjschmidt.com
>>
>>
>> -Original Message-
>> From: elecraft-boun...@mailman.qth.net 
>> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale Boresz
>> Sent: Sunday, July 29, 2012 6:07 PM
>> To: elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] Dead K3
>>
>> If you can, check the resistance across the K3 "12VDC IN" Power Pole 
>> connections (after you've disconnected your Power Supply of course).
>>
>> On my K3, an internal zener-like diode (D28 on the RF Board) 
>> evidently gave up its life to protect the radio from an overvoltage, 
>> and evidently the failure mode is a short circuit. This diode goes 
>> straight to ground immediately after the 6A inline fuse. I think the 
>> fuse is an auto-resetting fuse, so you can probably assume it is 
>> still completing the circuit for the purposes of your resistance 
>> measurement. If you measure a dead short, the culprit is likely D28.
>>
>> 73, Dale
>> WA8SRA
>>
>>
>

Re: [Elecraft] Dead K3

[Don Wilhelm]

Bill,

Your "cc" to k3supp...@elecraft.com did not show on what I perceive as 
your original post, so you may want to send something separate.
OTOH, since you are in a bit of a hurry (laving on Friday), and support 
has to wade through the entire weekend's worth of email, you may do 
better to phone 831/763-4211
first thing  (8AM) California time - well, leave enough time for Dale 
and Howard to settle down to their work positions and have a few sips of 
thier morning beverage.

In the meantime, check the obvious - remove the APP from the back of the 
K3 and check the voltage with your DMM - there is a possibility that 
there is a problem with the DC power cable.  If you assembled that power 
cable, take a look at the end of it - the blades of the connectors must 
be clipped securely over the spring fingers in the housing.  If you need 
a diagram of how it should look,  check figure 29 on page 37 of the XV 
transverter assembly manual - 
http://www.elecraft.com/manual/Assembly%20Manual%20XV50,144,%20222%20Rev%20D.pdf


73,
Don W3FPR

On 7/29/2012 7:48 PM, Dr. William J. Schmidt, II wrote:
> Thanks for the help.  I already "cc'd" them on the original post so they
> will know... and I will be on the phone tomorrow ASAP.  The customer service
> is excellent.  My fear is, leaving on Friday... if it's anything more than
> pushing a button/ resetting something/ removing a module... this radio stays
> home.
>
> Man the article I'm writing on Island radio is not looking pretty...
>
>
>
> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>
> Owner - Operator
> Big Signal Ranch
> Staunton, Illinois
>
> email:  b...@wjschmidt.com
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale Boresz
> Sent: Sunday, July 29, 2012 6:34 PM
> To: b...@wjschmidt.com
> Cc: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Dead K3
>
> Bill,
>
> Sorry, that's about the only thing that comes to mind that you could try
> without some disassembling. I agree, it sounds like D28 is not the issue.
> I'd call Elecraft Tech Support tomorrow and I'll bet they can help you out.
>
> Best wishes for a quick and easy fix!
>
> 73, Dale
> WA8SRA
>
>
>
> On 7/29/2012 7:16 PM, Dr. William J. Schmidt, II wrote:
>> Thanks for the tip... Measured about 995 ohms at the connector, so it
>> appears D28 is still intact.
>>
>>
>> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>>
>> Owner - Operator
>> Big Signal Ranch
>> Staunton, Illinois
>>
>> email:  b...@wjschmidt.com
>>
>>
>> -Original Message-
>> From: elecraft-boun...@mailman.qth.net
>> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale Boresz
>> Sent: Sunday, July 29, 2012 6:07 PM
>> To: elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] Dead K3
>>
>> If you can, check the resistance across the K3 "12VDC IN" Power Pole
>> connections (after you've disconnected your Power Supply of course).
>>
>> On my K3, an internal zener-like diode (D28 on the RF Board) evidently
>> gave up its life to protect the radio from an overvoltage, and
>> evidently the failure mode is a short circuit. This diode goes
>> straight to ground immediately after the 6A inline fuse. I think the
>> fuse is an auto-resetting fuse, so you can probably assume it is still
>> completing the circuit for the purposes of your resistance
>> measurement. If you measure a dead short, the culprit is likely D28.
>>
>> 73, Dale
>> WA8SRA
>>
>>
>>
>>
>> On 7/29/2012 6:32 PM, Dr. William J. Schmidt, II wrote:
>>> So I was testing out my new K3 before I take it to J6 next week for a
>>> little DXPedition work. and after about an hour of operation.. it
>>> just quit.  Dead as a door nail. has power to the back (checked) but
>>> never so much as the display activating.  Any ideas?  I SURE don't
>>> want to go back to that Flex
>>> 3000 that I had so much trouble with on PJ4..
>>>
>>> 
>>>
>>> 
>>>
>>> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>>>
>>> 
>>>
>>> Owner - Operator
>>>
>>> Big Signal Ranch
>>>
>>> Staunton, Illinois
>>>
>>> 
>>>
>>> email:   <mailto:b...@wjschmidt.com> b...@wjschmidt.com
>>>
>>> 
>>>
>>> __
>>> Elecraft mailing list
>>> Home: http:/

Re: [Elecraft] Dead K3

[Dale Boresz]

Another possibility is that the /PWR_ON line that biases on Q2 is not 
being pulled low by the associated line to the Front Panel board due to 
an intermittent connection on connector J30. Maybe try disconnecting and 
then reconnecting the Front Panel board from the RF Board.

73, Dale
WA8SRA


On 7/29/2012 6:32 PM, Dr. William J. Schmidt, II wrote:
> So I was testing out my new K3 before I take it to J6 next week for a little
> DXPedition work. and after about an hour of operation.. it just quit.  Dead
> as a door nail. has power to the back (checked) but never so much as the
> display activating.  Any ideas?  I SURE don't want to go back to that Flex
> 3000 that I had so much trouble with on PJ4..
>
>   
>
>   
>
> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>
>   
>
> Owner - Operator
>
> Big Signal Ranch
>
> Staunton, Illinois
>
>   
>
> email:    b...@wjschmidt.com
>
>   
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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Re: [Elecraft] Dead K3

[vk4tux]

My guess from your 995 ohm resistance check, is a dead Q2 FDS6375. It will be
interesting to see.
I would post the K3 to Elecraft and have it when you get home. Good luck on
the trip.

Adrian ... vk4tux



--
View this message in context: 
http://elecraft.365791.n2.nabble.com/Dead-K3-tp7560022p7560034.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] Dead K3

[Dr. William J. Schmidt, II]

Yep.  Have three different supplies, tried all three (all power my other
radios just fine). I have the scope/ VOM/ current meter on the input now
looking for transients, etc.  Nada.  No crowbar on the power supply either
(so no short).  I'm gonna have a look at that LP fuse now... 


Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

Owner - Operator
Big Signal Ranch
Staunton, Illinois

email:  b...@wjschmidt.com


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Shaw
Sent: Sunday, July 29, 2012 7:19 PM
To: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] Dead K3

Is the power supply supplying working properly, supplying voltage within K3
operating range?

73 John ZL1BYZ.

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike WA8BXN
Sent: Monday, 30 July 2012 12:08
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Dead K3


 
Measuring the current flow from power supply to radio in receive may give
someone a clue as to what is happening. 
 
73 - Mike WA8BXN
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-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 10.0.1424 / Virus Database: 2437/5163 - Release Date: 07/29/12

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Re: [Elecraft] Dead K3

[Dr. William J. Schmidt, II]

I think that's only for the power amp... but checked...it's engaged.


Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

Owner - Operator
Big Signal Ranch
Staunton, Illinois

email:  b...@wjschmidt.com


-Original Message-
From: Elliott Lawrence [mailto:wa6...@roadrunner.com] 
Sent: Sunday, July 29, 2012 6:43 PM
To: b...@wjschmidt.com
Subject: Re: [Elecraft] Dead K3

How about pushing the breaker button on the back panel?  Maybe it tripped?
73
Elliott WA6TLA

- Original Message - 
From: "Dr. William J. Schmidt, II" 
To: 
Sent: Sunday, July 29, 2012 3:32 PM
Subject: [Elecraft] Dead K3


> So I was testing out my new K3 before I take it to J6 next week for a 
> little
> DXPedition work. and after about an hour of operation.. it just quit. 
> Dead
> as a door nail. has power to the back (checked) but never so much as the
> display activating.  Any ideas?  I SURE don't want to go back to that Flex
> 3000 that I had so much trouble with on PJ4..
>
>
>
>
>
> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>
>
>
> Owner - Operator
>
> Big Signal Ranch
>
> Staunton, Illinois
>
>
>
> email:   <mailto:b...@wjschmidt.com> b...@wjschmidt.com
>
>
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html 

-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 10.0.1424 / Virus Database: 2437/5163 - Release Date: 07/29/12

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Re: [Elecraft] Dead K3

[John Shaw]

Is the power supply supplying working properly, supplying voltage within K3
operating range?

73 John ZL1BYZ.

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike WA8BXN
Sent: Monday, 30 July 2012 12:08
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Dead K3


 
Measuring the current flow from power supply to radio in receive may give
someone a clue as to what is happening. 
 
73 - Mike WA8BXN
__
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Re: [Elecraft] Dead K3

[Mike WA8BXN]

 
Measuring the current flow from power supply to radio in receive may give
someone a clue as to what is happening. 
 
73 - Mike WA8BXN
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Re: [Elecraft] Dead K3

[Dr. William J. Schmidt, II]

Thanks for the help.  I already "cc'd" them on the original post so they
will know... and I will be on the phone tomorrow ASAP.  The customer service
is excellent.  My fear is, leaving on Friday... if it's anything more than
pushing a button/ resetting something/ removing a module... this radio stays
home.

Man the article I'm writing on Island radio is not looking pretty...



Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

Owner - Operator
Big Signal Ranch
Staunton, Illinois

email:  b...@wjschmidt.com


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale Boresz
Sent: Sunday, July 29, 2012 6:34 PM
To: b...@wjschmidt.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Dead K3

Bill,

Sorry, that's about the only thing that comes to mind that you could try
without some disassembling. I agree, it sounds like D28 is not the issue.
I'd call Elecraft Tech Support tomorrow and I'll bet they can help you out.

Best wishes for a quick and easy fix!

73, Dale
WA8SRA



On 7/29/2012 7:16 PM, Dr. William J. Schmidt, II wrote:
> Thanks for the tip... Measured about 995 ohms at the connector, so it 
> appears D28 is still intact.
>
>
> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>
> Owner - Operator
> Big Signal Ranch
> Staunton, Illinois
>
> email:  b...@wjschmidt.com
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale Boresz
> Sent: Sunday, July 29, 2012 6:07 PM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Dead K3
>
> If you can, check the resistance across the K3 "12VDC IN" Power Pole 
> connections (after you've disconnected your Power Supply of course).
>
> On my K3, an internal zener-like diode (D28 on the RF Board) evidently 
> gave up its life to protect the radio from an overvoltage, and 
> evidently the failure mode is a short circuit. This diode goes 
> straight to ground immediately after the 6A inline fuse. I think the 
> fuse is an auto-resetting fuse, so you can probably assume it is still 
> completing the circuit for the purposes of your resistance 
> measurement. If you measure a dead short, the culprit is likely D28.
>
> 73, Dale
> WA8SRA
>
>
>
>
> On 7/29/2012 6:32 PM, Dr. William J. Schmidt, II wrote:
>> So I was testing out my new K3 before I take it to J6 next week for a 
>> little DXPedition work. and after about an hour of operation.. it 
>> just quit.  Dead as a door nail. has power to the back (checked) but 
>> never so much as the display activating.  Any ideas?  I SURE don't 
>> want to go back to that Flex
>> 3000 that I had so much trouble with on PJ4..
>>
>>
>>
>>
>>
>> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>>
>>
>>
>> Owner - Operator
>>
>> Big Signal Ranch
>>
>> Staunton, Illinois
>>
>>
>>
>> email:   <mailto:b...@wjschmidt.com> b...@wjschmidt.com
>>
>>
>>
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net Please help support this 
>> email
>> list: http://www.qsl.net/donate.html
>>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net Please help support this email 
> list: http://www.qsl.net/donate.html
> -
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1424 / Virus Database: 2437/5163 - Release Date: 
> 07/29/12
>
>

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Checked by AVG - www.avg.com
Version: 10.0.1424 / Virus Database: 2437/5163 - Release Date: 07/29/12

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Re: [Elecraft] Dead K3

[Dr. William J. Schmidt, II]

Nope.  Now when I push the power button it does nothing... no relay
clicking... nada... For a while, at least I heard the power relay close...
now nothing.

This is very irritating.  I've tried three radios and power supplies in the
last year... to put something together that was a little lighter than
dragging my heavy Icom 756 proII with me... All three (different companies)
have failed either while in service or (in this case) before!  In each case,
I spent a lot of money thinking I bought the best that could be had.  I just
don't even know what to say.  Now don't get me wrong, I have not given up on
the K3 yet... but things don't look good...


Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

Owner - Operator
Big Signal Ranch
Staunton, Illinois

email:  b...@wjschmidt.com


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill
Sent: Sunday, July 29, 2012 6:30 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Dead K3

Does the display stay dark - but, dimly shows MCU LD in the lower right
corner?

Bill W2BLC

--
IN GOD I TRUST (but, NOT a single politician)
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Checked by AVG - www.avg.com
Version: 10.0.1424 / Virus Database: 2437/5163 - Release Date: 07/29/12

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Re: [Elecraft] Dead K3

[Dale Boresz]

Bill,

Sorry, that's about the only thing that comes to mind that you could try 
without some disassembling. I agree, it sounds like D28 is not the 
issue. I'd call Elecraft Tech Support tomorrow and I'll bet they can 
help you out.

Best wishes for a quick and easy fix!

73, Dale
WA8SRA



On 7/29/2012 7:16 PM, Dr. William J. Schmidt, II wrote:
> Thanks for the tip... Measured about 995 ohms at the connector, so it
> appears D28 is still intact.
>
>
> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>
> Owner - Operator
> Big Signal Ranch
> Staunton, Illinois
>
> email:  b...@wjschmidt.com
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale Boresz
> Sent: Sunday, July 29, 2012 6:07 PM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Dead K3
>
> If you can, check the resistance across the K3 "12VDC IN" Power Pole
> connections (after you've disconnected your Power Supply of course).
>
> On my K3, an internal zener-like diode (D28 on the RF Board) evidently gave
> up its life to protect the radio from an overvoltage, and evidently the
> failure mode is a short circuit. This diode goes straight to ground
> immediately after the 6A inline fuse. I think the fuse is an auto-resetting
> fuse, so you can probably assume it is still completing the circuit for the
> purposes of your resistance measurement. If you measure a dead short, the
> culprit is likely D28.
>
> 73, Dale
> WA8SRA
>
>
>
>
> On 7/29/2012 6:32 PM, Dr. William J. Schmidt, II wrote:
>> So I was testing out my new K3 before I take it to J6 next week for a
>> little DXPedition work. and after about an hour of operation.. it just
>> quit.  Dead as a door nail. has power to the back (checked) but never
>> so much as the display activating.  Any ideas?  I SURE don't want to
>> go back to that Flex
>> 3000 that I had so much trouble with on PJ4..
>>
>>
>>
>>
>>
>> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>>
>>
>>
>> Owner - Operator
>>
>> Big Signal Ranch
>>
>> Staunton, Illinois
>>
>>
>>
>> email:   <mailto:b...@wjschmidt.com> b...@wjschmidt.com
>>
>>
>>
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net Please help support this email
>> list: http://www.qsl.net/donate.html
>>
> __
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> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
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>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> -
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1424 / Virus Database: 2437/5163 - Release Date: 07/29/12
>
>

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Re: [Elecraft] Dead K3

[Bill]

Does the display stay dark - but, dimly shows MCU LD in the lower right 
corner?

Bill W2BLC

-- 
IN GOD I TRUST (but, NOT a single politician)
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Re: [Elecraft] Dead K3

[Dr. William J. Schmidt, II]

Thanks for the tip... Measured about 995 ohms at the connector, so it
appears D28 is still intact.


Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

Owner - Operator
Big Signal Ranch
Staunton, Illinois

email:  b...@wjschmidt.com


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dale Boresz
Sent: Sunday, July 29, 2012 6:07 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Dead K3

If you can, check the resistance across the K3 "12VDC IN" Power Pole
connections (after you've disconnected your Power Supply of course).

On my K3, an internal zener-like diode (D28 on the RF Board) evidently gave
up its life to protect the radio from an overvoltage, and evidently the
failure mode is a short circuit. This diode goes straight to ground
immediately after the 6A inline fuse. I think the fuse is an auto-resetting
fuse, so you can probably assume it is still completing the circuit for the
purposes of your resistance measurement. If you measure a dead short, the
culprit is likely D28.

73, Dale
WA8SRA




On 7/29/2012 6:32 PM, Dr. William J. Schmidt, II wrote:
> So I was testing out my new K3 before I take it to J6 next week for a 
> little DXPedition work. and after about an hour of operation.. it just 
> quit.  Dead as a door nail. has power to the back (checked) but never 
> so much as the display activating.  Any ideas?  I SURE don't want to 
> go back to that Flex
> 3000 that I had so much trouble with on PJ4..
>
>   
>
>   
>
> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>
>   
>
> Owner - Operator
>
> Big Signal Ranch
>
> Staunton, Illinois
>
>   
>
> email:   <mailto:b...@wjschmidt.com> b...@wjschmidt.com
>
>   
>
> __
> Elecraft mailing list
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No virus found in this message.
Checked by AVG - www.avg.com
Version: 10.0.1424 / Virus Database: 2437/5163 - Release Date: 07/29/12

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Re: [Elecraft] Dead K3

[Dale Boresz]

If you can, check the resistance across the K3 "12VDC IN" Power Pole 
connections (after you've disconnected your Power Supply of course).

On my K3, an internal zener-like diode (D28 on the RF Board) evidently 
gave up its life to protect the radio from an overvoltage, and evidently 
the failure mode is a short circuit. This diode goes straight to ground 
immediately after the 6A inline fuse. I think the fuse is an 
auto-resetting fuse, so you can probably assume it is still completing 
the circuit for the purposes of your resistance measurement. If you 
measure a dead short, the culprit is likely D28.

73, Dale
WA8SRA




On 7/29/2012 6:32 PM, Dr. William J. Schmidt, II wrote:
> So I was testing out my new K3 before I take it to J6 next week for a little
> DXPedition work. and after about an hour of operation.. it just quit.  Dead
> as a door nail. has power to the back (checked) but never so much as the
> display activating.  Any ideas?  I SURE don't want to go back to that Flex
> 3000 that I had so much trouble with on PJ4..
>
>   
>
>   
>
> Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
>
>   
>
> Owner - Operator
>
> Big Signal Ranch
>
> Staunton, Illinois
>
>   
>
> email:    b...@wjschmidt.com
>
>   
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
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[Elecraft] Dead K3

[Dr. William J. Schmidt, II]

So I was testing out my new K3 before I take it to J6 next week for a little
DXPedition work. and after about an hour of operation.. it just quit.  Dead
as a door nail. has power to the back (checked) but never so much as the
display activating.  Any ideas?  I SURE don't want to go back to that Flex
3000 that I had so much trouble with on PJ4..

 

 

Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

 

Owner - Operator

Big Signal Ranch

Staunton, Illinois

 

email:    b...@wjschmidt.com

 

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Re: [Elecraft] Dead K3 Hi Jacked thread...

[Ken K3IU]

Good afternoon, Tom:

You haven't said, but are you using a "regular" 9 pin serial cable or a 
USB-to-serial connection?
If you have the capability, use a "regular" serial cable between the 
computer and the K3.


If you have not done so, I suggest that you re-download from the 
internet both the K3 Utility program and the firmware elements. After 
you download the firmware, check on your computer to see that you have 
successfully downloaded all the elements. Check the help files in the K3 
Utility program for guidance in troubleshooting.


When ready to upload the new firmware to the K3, get out of Advanced 
Mode (View menu) and click on the "Send All Firmware to K3" button.


If you have tried all of these things and still have no luck, then I 
suggest you send your problem to [EMAIL PROTECTED]


73,
Ken K3IU

TMorton wrote:

Gentlemen,
Pse read carefully. My original thread stated that the FACTORY built 
K3 was returned so that the FACTORY could install the KRX-3...pips or 
not, doesn't matterdoes the factory not check out the rig before 
pushing them out the door?
I have done more troubleshooting. I still have the HI RFI msg even 
though there is no RF present in the shack...even turned off this 
computer and nothing was emittingI cranked up the K3 Utility, 
1.1.6.3 and see where the K3 was showing the older MCU 02.24; FPF 
00.02 DSP 00.00 and DSP2 NA. While I was able to  reload 2.46 the FPF 
repeatedly failed...I would get:

FPF firmware failed at load address x.
FPF program load failed.
Neither DSP1 or DSP2 would load or verify.
I am stumped as to where to go next.
Ideas pse?
73
Tom
CX7TT
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[Elecraft] Dead K3 Hi Jacked thread...

[TMorton]

Gentlemen,
Pse read carefully. My original thread stated that the FACTORY built K3 
was returned so that the FACTORY could install the KRX-3...pips or not, 
doesn't matterdoes the factory not check out the rig before pushing 
them out the door?
I have done more troubleshooting. I still have the HI RFI msg even 
though there is no RF present in the shack...even turned off this 
computer and nothing was emittingI cranked up the K3 Utility, 
1.1.6.3 and see where the K3 was showing the older MCU 02.24; FPF 00.02 
DSP 00.00 and DSP2 NA. While I was able to  reload 2.46 the FPF 
repeatedly failed...I would get:

FPF firmware failed at load address x.
FPF program load failed.
Neither DSP1 or DSP2 would load or verify.
I am stumped as to where to go next.
Ideas pse?
73
Tom
CX7TT
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RE: [Elecraft] Dead K3

[Ron D'Eau Claire]

Wow, I'm very sorry to hear that Gentlemen. I trust you've sent messages to
[EMAIL PROTECTED] 

Dave, your experience with the K3 PCB has been addressed. A shipment of
boards with protrusions on the sides of the PCB in the wrong places was
received from (I understand) a new vendor. Obviously, that was missed when
the parts were received. 

Check Errata B-4 to the KRX3 Assembly manual:

http://www.elecraft.com/manual/KRX3_Errata_Rev_B-4.pdf

It instructs  builders to *carefully* file down the nubs that strike the
sides of the enclosure so the pcb fits properly. 

Also, with reference to VFO B encoder issues, it's been discovered that a
small number of K3s can develop a short between the pins on the back of the
encoder and the main DSP board. The short is caused because, when plugging
the front panel assembly onto the main chassis, the force required to engage
the multipin connector J51 on the DSP board near the encoder can be enough
to flex the board forward to it strikes the pins on the little encoder
board. 

The "fix" is also discussed in the above errata since Elecraft wants
everyone who installs the KRX3 to implement it if it wasn't done during the
initial build. It's in two parts. First, the pins behind the connector on
the back of the little pc board attached to the encoder are trimmed flush to
the board (there's a photo in the errata). That fixes the issue 99.9% of the
time since the main DSP board has to flex much farther to touch the encoder
with the pins trimmed. Secondly, Wayne added a nylon standoff to the design.
It mounts on the main DSP board near that connector and rests against the
front panel board so the DSP board cannot flex toward the encoder. An option
to the standoff is to add a bit of foam tape (like the white, double-sticky
Scotch "mounting" tape used for pictures, etc.) that is a few mm thick over
those pins. Leave the protective covering over one side and stick it onto
the pcb over the trimmed pins. 

If you trim the pins and add a bit of insulation on the back of the encoder
pcb, the standoff should not be needed. Wayne included it to be absolutely
sure the problem was handled. If you'd like to install the nylon standoff,
I'm sure Elecraft will provide the parts if you drop a note to
[EMAIL PROTECTED]

Ron AC7AC

-Original Message-

In a recent message, "Sanger, Joseph" <[EMAIL PROTECTED]> writes
>David, I have the KRX3 sitting in a box ... and your experience 
>confirms my worst fears ... I am really reluctant to tackle the 
>installation ... especially, as you point out, I really don't have any 
>specific need for the subreceiver; just a neurotic need to fully load 
>the box!

Likewise, I only bought the KRX3 so I had a complete system, Joe. In 
hindsight, I wish I hadn't.  The KRX3 did not go together well. There 
were some protrusions on the KRX3 that did not correspond to the holes 
in the metalwork. They caused the metalwork to distort.  A manufacturing 
or design fault I presume.

73 de David G4DMP
-- 
+ - - - - - - - - - - - - - - - - - - - -+
| David M Pratt, Kippax, Leeds, England  |
| K1:1117 KX1:0052 K2:1583 XV144 K3:0186 |
+ - - - - - - - - - - - - - - - - - - - -+


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Re: [Elecraft] Dead K3

[David Pratt]

I had considered either filing them off or drilling new holes in the 
metalwork.  However, I'm glad I didn't as my K3/KRX3 was returned to 
Elecraft under warranty and I thought that making any changes might have 
invalidated the warranty.


73 de David G4DMP

In a recent message, Vic K2VCO <[EMAIL PROTECTED]> writes

David Pratt wrote:

The KRX3 did not go together well. There  were some protrusions on 
the KRX3 that did not correspond to the holes  in the metalwork. They 
caused the metalwork to distort.  A manufacturing  or design fault I 
presume.


Someone mentioned this recently, and Eric's response was that they had 
switched PCB suppliers and there was a issue that boards had 'pips' in 
the wrong places.


He advised filing these off, as there are enough in the correct 
locations to hold the board in place. It's important that the metal 
cover and shield box make good contact, so if you have one of these 
boards it's a good idea to do this.


--
+ - - - - - - - - - - - - - - - - - - - -+
| David M Pratt, Kippax, Leeds, England  |
| K1:1117 KX1:0052 K2:1583 XV144 K3:0186 |
+ - - - - - - - - - - - - - - - - - - - -+


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Re: [Elecraft] Dead K3

[Vic K2VCO]

David Pratt wrote:

The KRX3 did not go together well. There 
were some protrusions on the KRX3 that did not correspond to the holes 
in the metalwork. They caused the metalwork to distort.  A manufacturing 
or design fault I presume.


Someone mentioned this recently, and Eric's response was that they had 
switched PCB suppliers and there was a issue that boards had 'pips' in 
the wrong places.


He advised filing these off, as there are enough in the correct 
locations to hold the board in place. It's important that the metal 
cover and shield box make good contact, so if you have one of these 
boards it's a good idea to do this.

--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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[Elecraft] Dead K3-more info

[TMorton]

Hello again,
K3 #250 here. I started up the utility 1.1.6.3 and the prg showed the 
following: MCU 02.24; FPF 00.02; DSP1 00.00 and DSP2 NA.
I downloaded 2.46 and tried to upload the firmware. I  had to do a 
forced download and when it got to FPF, it failed as did the DSP 1 and 
2. The Activity log shows:

Sending firmware file hppf0002.hix to FPF
Send FPF firmware failed at load address x
FPF progam load failed.

K3 still has no sound nor signals and HI RFI still in B window...
Help...
Tom Morton
CX7TT
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Re: [Elecraft] Dead K3

[David Pratt]

In a recent message, "Sanger, Joseph" <[EMAIL PROTECTED]> writes

David, I have the KRX3 sitting in a box ... and your experience confirms
my worst fears ... I am really reluctant to tackle the installation ...
especially, as you point out, I really don't have any specific need for
the subreceiver; just a neurotic need to fully load the box!


Likewise, I only bought the KRX3 so I had a complete system, Joe. In 
hindsight, I wish I hadn't.  The KRX3 did not go together well. There 
were some protrusions on the KRX3 that did not correspond to the holes 
in the metalwork. They caused the metalwork to distort.  A manufacturing 
or design fault I presume.


73 de David G4DMP
--
+ - - - - - - - - - - - - - - - - - - - -+
| David M Pratt, Kippax, Leeds, England  |
| K1:1117 KX1:0052 K2:1583 XV144 K3:0186 |
+ - - - - - - - - - - - - - - - - - - - -+


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Re: [Elecraft] Dead K3

[David Pratt]

You have my sympathy, Tom.  I had a perfectly working K3 until I 
installed the KRX3.  After I installed the KRX3, screwed everything back 
together again and returned it to the shack to plug it in, I found all 
sorts of error messages.  As Elecraft were unable to resolve the problem 
by e-mail I was asked to return it to Aptos for attention.  That was two 
months ago. Not only have I been without my K3 for two months but, it 
cost me a small fortune to return it. Also, being outside the USA I will 
be expected to pay for return shipping.


Understandably, I wish I had not bothered to get a KRX3 and will 
certainly NOT be recommending anyone else get one unless they have a 
specific reason for a sub receiver.


73

David G4DMP

In a recent message, TMorton <[EMAIL PROTECTED]> writes

Hola,
I received my factory built K3/100 #250 in March. I returned it to 
Aptos in June IOT have sub rcvr installed, etc. Recently returned and 
after setting it up, I turned it on to see 14000.00 and HI RFI in the 
sub rcvr window.  There is no sound whatsoever from the rig The B knob 
is frozen in that turning it does nothing. Selecting Menu or Config 
gives me blank in Upper window...

--
+ - - - - - - - - - - - - - - - - - - - - +
| David M Pratt, Kippax, Leeds, England   |
| K1:1117 KX1:0052 K2:1583 XV144 K3:01864 |
+ - - - - - - - - - - - - - - - - - - - - +


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[Elecraft] Dead K3

[TMorton]

Hola,
I received my factory built K3/100 #250 in March. I returned it to Aptos 
in June IOT have sub rcvr installed, etc. Recently returned and after 
setting it up, I turned it on to see 14000.00 and HI RFI in the sub rcvr 
window.  There is no sound whatsoever from the rig The B knob is frozen 
in that turning it does nothing. Selecting Menu or Config gives me blank 
in Upper window...
No bueno for contesting or dxing...anybody got any ideas? OH, once I was 
able to get in the freq window (Upper) Mode E 000200 and once saw uC 02.24

Help, pse..
73
Tom
CX7TT
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