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Author Topic: WARNING! Icom 7000 FIRE DANGER!!  (Read 1033 times)
KB3MMX
Member

Posts: 132




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« on: September 14, 2007, 09:30:42 AM »

Everyone, I recently had my Driver board go up in smoke and after research in the Yahoo group for Icom 7000 owners came accross many posts, there are also pictures of this known problem!!!
I talked to Icom today and got the party line of " we are unaware if this problem" response!!
I will be sending my rig in for repair and we will see if they stand behind their product.
I'm not holding my breath after talking with their service center phone rep!!

Here's the article in Yahoo:
http://groups.yahoo.com/group/ic7000/message/7382

Here's the pictures of the driver board:
http://ph.groups.yahoo.com/group/ic7000/photos/browse/8fec







And part of the text:

Re: Driver Board is smoked



Dear Craig,

my DRIVER UNIT also died in smoke. It seems not to be a thermal
problem which damaged the driver stage – as I thought first. An Icom
technician told me, that unintentional oscillations may have caused
the failure. The problem is known by Icom and they have a
modification for this. Im my case the MOSFET PD15055 was replaced
and 11 (!) additional "Massefedern" (ground springs? ground pins?)
have been installed on the PCBs. My Radio is SN 0202054.

73

DG2JA - Juergen Aust



--- In ic7000@yahoogroups.com, "n7xq" <moonman@...> wrote:
>
> I beleive that the DRIVER UNIT ( Mosfet PD55015 ) went up in smoke
on
> me, I had just made several ssb contacts and decided to give CW a
try ,
> that lasted about 5 min. then a small ball of smoke rolled out of
the
> top of the rig and All RF output, on All Bands and All modes
stopped,
> no output at all, The recieve is excellent on All Bands and All
modes .
>
> I will call Icom tomorrow and try to find out if this is a common
> problem and if there is a fix for the Issue that Icom will provide.
>
> The Serial # of my Rig is 0503212. Has anyone else had this
problem
> that wouldn't mind shareing there experience?
>
> 73
> Craig N7XQ
>





Re: [IC-7000] Re: Driver Board is smoked


Hello:

As I wrote around 1 week ago, I had a defective Driver board on my 7K. As
I received the new boart from my ICOM dealer, I did the replaceing myself
and then discowered that there was no heat compound between the copper
strip on the driver board and the heatsink. Even worse is that the copper
strip is not flat so only the ends are in touch with the sink. The power
dissipation in the driver is 14W independent of the output level (class
A). I think the problem must be the missing heat transfer from the
transistor via the copper strip to the heatsink.
I would advice to make the copper strip flat before installing it by
fileing it with a fine file to be sure the heat transfer is as good as
possible and also use heat compound.

73, es LA2NI Kjell


On Fri, 14 Sep 2007 05:35:39 +0200, John Chandler
<jch45975@...> wrote:

> Hi Chuck - I was quite concerned to see your post on the driver board
> etc. Well my friend you "ain't alone" as mine has done exactly the same
> thing twice. The last trip back to Icom Australia from the selling
> dealer resulted in them contacting Japan for assistance. I heard 2nd
> hand that an earth loop mod corrected the problem and I have had the 7k
> back in use now for about a week with no drama so far. The first time
> it went up in flames and filled the shack with nasty smoke. In fact the
> dealer smelt the 7K in it'[s box as I took it through his door. The 2nd
> demise (after 3days back) saw no smoke and flames but a distinct
> phtttttt was heard. The driver FET is used for HF, VHF and UHF. Apart
> from those probs which were fixed under W/Ty I guess I was content with
> the rig!!!!!! BTW., the rig still smells slightly so I hope that may
> disappear. Hats off to the local dealer UHF Comms. here in Townsville
> for their W/Ty service on boh occasions. This 7K was one of three
> purchase!
> d in November 2006. Perhaps you could pass on this info to your
> repairer just in case.
>
> Good luck mate...
>
> Dave ... VK4DCC Townsville North Queensland.
>
>
> ----- Original Message -----
> From: Chuck
> To: ic7000@yahoogroups.com
> Sent: Friday, September 14, 2007 8:40 AM
> Subject: [IC-7000] Re: Driver Board is smoked
>
>
> Mine went up in smoke today while on 6 Meters!!!!!!
> Not too pleased right now!!!!!!
>
> I'll be sending my IC-7000 back after only about 18 months of service.
> It was an early production radio so I guess the driver board issue had
> not been addressed at that point.
> What sucks is I wanted to try to work 3B7C on some other bands this
> week and now I'm toast. By the time I get it back, they will be
> finished with the DXpedition Sad Sad Sad Sad
>
> Maybe time to buy that TS-2000 or PRO III I have been wanting(?)
>
> ****If ICOM won't help with the repair issue, I won't be buying any
> more of their products again!!!!!!!!!!
> We SHALL see............
>
> 73,
>
> Chuck Pyatt KB3MMX
>



RE: [IC-7000] Re: Driver Board is smoked


I've had two IC-7000s with the driver board problem. Both of them were in
mobile environment being "hammered" pretty hard in QSO party operation but
with good antenna and good grounding. Mine were in shop about 4-6 weeks.
Fortunately they both were under warranty - smoke appeared about 7 months
after purchase.

Chuck/NO5W

-----Original Message-----
From: ic7000@yahoogroups.com [mailto:ic7000@yahoogroups.com] On Behalf Of
n4hai
Sent: Tuesday, July 31, 2007 3:28 PM
To: ic7000@yahoogroups.com
Subject: [IC-7000] Re: Driver Board is smoked

My 7k "went up in smoke" during FD this year, and I just got it back.
First of all: I was running "1D", home power, using an antenna that I
know works well. About 8 hours into FD, and not really hammering the
radio too hard, I changed bands, hit the key to check SWR, and boom!
Smoke. Then, as described below, no output on any band.

I sent the rig into ICOM and just got it back today after almost one
month in the shop. They replaced the RF Driver Board and a leaky UHF
final transistor.

This set me back almost $250!

ICOM didn't admit to any "known faults", and the radio was 13 months
old when it broke. I'm not too happy.

Has anyone else been through this, and has the driver board "problem"
been fixed in the most recent rev?

73 DE Tom



==================================================  
       
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K0BG
Member

Posts: 9901


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« Reply #1 on: September 14, 2007, 10:25:02 AM »

One of the problems with the internet is, it allows propagation of myth and anecdotal information. The true fact is, the IC-7000 has well less than 1% failure rate, and this includes dumb things like hooking the power up backwards.

I've had two IC-7000s, and they both were mobile, sealed as it were in the trunk. Neither has every hiccuped. I did break off the speaker jack, but that was my fault, and I was able to fix it myself. I bought a new one at Dayton, for no other reason than the price was right! When I decided to fix the speaker jack, I put the new one in the vehicle. A friend who's a little short on cash needed a radio, and I sold the old one to him rather cheaply. He's had it mobile for about 60 days, and nothing has gone wrong.

The only factory mod was a grounding issue, apparently associated with the infamous squeal some first owners complained about.

In other words, it's a solid radio, your problem notwithstanding.

Alan, KØBG
www.k0bg.com
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KB3MMX
Member

Posts: 132




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« Reply #2 on: September 14, 2007, 12:31:06 PM »

Let's see if they stand behind it Wink
 
 That will be a good test for Icom, as there are others with this problem that Icom will not acknowledge "yet".  The link to the group is a good one for IC-7000 owners to exchange info and so forth.
 Let's face it, it took Icom a while to fix the noise problems(tone) some had in their recievers.
 
 If someone's shack burns down Because of this, it will surely get more recognition!
 
 Lets hope that doesn't happen!!!


--Chuck
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N5DXL
Member

Posts: 43




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« Reply #3 on: September 14, 2007, 09:06:26 PM »

If had my IC-7000 mounted in my 18 wheeler for over a
year app. 150,000 miles. Traveling over bad roads, ice
dirt roads/trails and it's worked great. I was a die
hard Kenwood man till I got the IC-7000. How I own 5
IComs.

73,
Tom
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KB2CPW
Member

Posts: 304




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« Reply #4 on: September 15, 2007, 10:31:38 AM »


  K0BG,

  Although I value, respect and agree with all of your posts, with this one I digress.. Your assumption is that everyone who has responded:

 1.uses the internet
 2.eham
 3.and has found the above user who has posted this info.

  The truth is that there are many more people out there with this problem who have not made their way here to complain.

  The FT100 ie. from a few years back had many major flaws, only those that made their way here or to Yahoogroups had any complaints, the silent majority may not have known what we've known and learned and sent it in for blind repair,replacement or had it fixed out of warranty and Icom wont give you those figures..

  Truth be told, many were like you and didnt complain as they didnt have the failure (yet) and actually back Yaesu in their thinly vailed attempt at a coverup..

  History repeats itself and I suspect those who dont have trouble are:

 Icom lovers (and may not even own the 7000) will blame the hapless owners who suffer failure of the rigs.

  People with the rigs without failure and dont think its an issue as their radio is fine.

  There are in fact many many more unreported failures than reported ones.. That is until the fire issue actually kills or injures someone.


 
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K0BG
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Posts: 9901


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« Reply #5 on: September 15, 2007, 02:14:13 PM »

Richy, that very well may be true. However, every single complaint about this very issue has stemmed from the same source. That in itself, is enough to make ME skeptical of it's validity.

At one time or another, there have been instances where in-field problems has arisen, that didn't show up in Beta tests. Fact is, you can say that about any electronic product. But smoking a resistor, cap, or SS device whether it be caused by defective parts and/or self induced, doesn't automatically make the electronic device a true fire hazard. To assume it does, is just that, an assumption.

Alan, KØBG
www.k0bg.com
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KE3WD
Member

Posts: 5689




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« Reply #6 on: September 15, 2007, 06:52:05 PM »

>>There are in fact many many more unreported failures than reported ones.. <<

The Bravo Sierra on that one is obvious enough...


But just in case I will point it out.  


Um, If there are in fact "many many more" unreported failures, um, how would anybody know that?  


"many many"


Is that a finite number?  


How about this, then:

"There are "many many" repeats of this same post all over the eHam forums."  

I think ya missed a couple or three sections, though.  

Must be "unreported".  

Anybody have a real number as to how many IC-7000s have been sold worldwide to date?  

Once we have that number we can compare to the few reported failures that started this dire warning message of a post.  

Statistics.  

87% of 'em are made up on the spot.  


KE3WD
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W3LK
Member

Posts: 5639




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« Reply #7 on: September 15, 2007, 07:06:06 PM »

Clark, you beat me to it. Smiley

Well said!

73,

Lon - W3LK
Naugatuck, Connecticut
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A smoking section in a restaurant makes as much sense as a peeing section in a swimming pool.
K0BG
Member

Posts: 9901


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« Reply #8 on: September 16, 2007, 10:10:54 AM »

Clark, I can't tell you how many they've sold, but the one I bought at Dayton, was about 7300 higher than the one I bought in October of 2005.

Alan, KØBG
www.k0bg.com
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KB3MMX
Member

Posts: 132




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« Reply #9 on: September 16, 2007, 05:15:19 PM »

"Richy, that very well may be true. However, every single complaint about this very issue has stemmed from the same source. That in itself, is enough to make ME skeptical of it's validity.

At one time or another, there have been instances where in-field problems has arisen, that didn't show up in Beta tests. Fact is, you can say that about any electronic product. But smoking a resistor, cap, or SS device whether it be caused by defective parts and/or self induced, doesn't automatically make the electronic device a true fire hazard. To assume it does, is just that, an assumption.

Alan, KØBG
www.k0bg.com "


   WHAT!!!

 This was a warning to those who also have 7000's to be VERY careful, because this will happen without ANY warning as I unfortunately found out myself.

 If you want more Validity look up the initial reviews of the 7000's and there were complaints of smoked finals and so forth then.


 Unfortunately, it is quite easy to buy into the "this won't happen to me" theme.

  Like I said though, it won't give you ANY warning, and hopefully nobody loses their HOME or CAR from this defect!!




 Here's a thread with failure of the finals when using the TUNER connection in this instance.(on this website)
    http://www.eham.net/articles/14553




73,
    Chuck
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KE3WD
Member

Posts: 5689




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« Reply #10 on: September 16, 2007, 09:20:29 PM »

>>Like I said though, it won't give you ANY warning<<

You would like for it to maybe send you a postcard?  


!
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K0BG
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Posts: 9901


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« Reply #11 on: September 17, 2007, 02:06:26 PM »

Doing my best to be polite...

I purchased one of the first 746 Pros (3 digit serial number). After about 3 months, there seemed to be a vast number of folks complaining about IC151 failing. You would think from the internet exposure, that EVERY SINGLE 746 Pro had failed. Mine didn't, and in fact it lasted nearly 4 years before the chip failed. It was simple to fix.

When the IC-7000 was introduced, some folks reported the now infamous  squeal. From the internet exposure, you would have thought EVERY SINGLE one of them had the problem. Mine didn't.

Most of this crying wolf syndrome stems from buyers remorse. Sort of a "how could they do this to me" scenario, "after I paid all these big bucks?"

The truth is, the in-field percentage of failures (while under warranty) for all of the big three is less than 1%. That certainly doesn't constitute EVERY SINGLE radio. But you'd think it did by reading some of the reflectors.

Alan, KØBG
www.k0bg.com
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KB3MMX
Member

Posts: 132




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« Reply #12 on: September 17, 2007, 04:24:14 PM »

Alan don't worry about being polite in dismissing the problem. I'm not worried about it.

 *Just be aware that this can happen to you if you own a IC-7000 radio. And it will have NO symptoms prior to the big failire, NONE. No weird reactions or functioning of the electronics, just a HUGE ball of smoke out of the rig and potentially flames.



 The test is on Icom to see if they back up their product.  I will post how they end up handling this situation.

 And, you're very darn right that I'm mad after spending $1500 on a radio that worked awesome for a short period before becoming a smoke grenade in the shack!
  Looking back about 18 months ago, I would have spent the $$ on a Kenwood TS-2000 and not went through this smoke bomb incident. Hind sight is ALWAYS 20-20 though as they say!
I would think most other people in the same situation would be quite PO'd as well!!  
 I guess that kind of cash comes easier to some others though!



-Chuck
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KE3WD
Member

Posts: 5689




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« Reply #13 on: September 17, 2007, 09:19:51 PM »

Chuck, of course I would be a bit miffed if something like that happened to me.  

But I would not yell "fire" in a crowded theater about it.  


Some of the things you've typed about this are off the deep end, there have been zero reports of this problem starting an actual fire, any board smoke and possible flames will more than likely be contained right there inside the rig.  As we have seen from the reports you have posted.  

The topic header, which you have made sure to repeat multiple times in a few different forums around here, warns of fire danger in all caps with double exclamation points, man.  Chill.  We feel yer pain.  

I wish you the best in getting a resolution for this problem from the mfr.  

But, as we used to say a few years before 9/11, "feces occurs".  


!
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KB3MMX
Member

Posts: 132




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« Reply #14 on: September 23, 2007, 05:41:30 PM »

Clark, I know it seems like a pretty bold post but... in all seriousness, the fire potential is definetely there for a failure like this.
    I'm trying to get the info out there for others as this is a high traffic place to do it.
  It is hard for Icom to deny the problem when they apparently have an update to the affected circuitry.
 
<<side note>>I did love everyhting about this rig except for having this expensive failure now!! The DSP system and all the other features are top shelf!!
 I have since purchased a TS-2000X to replace it and my only gripe is I wish the TS-2000 series had a Display like the Icom 7000 rigs, but in a base size rig display. The Kenwood orange is okay but not as appealing as the Icom.
  Actually there aren't many/any mobiles out there with such a high quality Display! It's (IC-7000)more like a Icom PRO series but in a mobile unit..  Smiley

====================================================

****UPDATE: Thus far Icom has said they probably wouldn't warrany any of the repair. They recieved it this week.
 I'll keep everyone posted as this evolves.
 
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