Ron,
The same thing happened to me when I fired up by brand new ALS1300. When
I got to 1000 watts, the amp completely shut down and I had only had the
amp on the air for 5 minutes. Ameritron did fix the amp and I have had
no more problems with it.
Bob, K8LR, [log in to unmask]
On 2/11/2016 11:05 PM, Dr. Ronald E. Milliman wrote:
> This is a multi-part message in MIME format.
>
> ------=_NextPart_000_0059_01D16518.4F98F5E0
> Content-Type: text/plain;
> charset="us-ascii"
> Content-Transfer-Encoding: 7bit
>
> Well, I finally got my new ALS-1306 operational today. However, I was
> chasing DX on 20 meters CW and suddenly my ALS-1306 went dead! I was only
> driving it with 25 watts, and it was running a cool 500 watts output. I
> immediately checked the Operator's manual to see what it said about
> resetting it if it just totally kicked off. It said to wait a few minutes
> with it powered completely down, and it would reset itself. That is what I
> did, but it never reset. I called Palma over to see if she could spot
> anything, and she said there were a couple of lights flashing, but the most
> important finding was that in the HV1 voltage position of the meter, it read
> 50 volts, which it should, but in the HV2 position, it read zero, when it
> should read 50 volts just like in the HV1 position. I picked up the phone
> and called Ameritron and told the service tech what happened and what the
> meter was reading, and he immediately told me that I most likely had a blown
> final. There are 8 transistors in the final, and he said that if just one of
> those transistors went bad, it would shut down the whole amp, and I would
> get the kind of reading I was getting from the meter. So, we boxed it back
> up in the same box it came in and shipped it back to Ameritron this
> afternoon.
>
>
>
> I am totally stunned! My newest TS-590s was defective coming right out of
> the box, and I had to ship it to the Kenwood service center to be repaired
> under its warranty, and now, my new ALS-1306 blew up within a couple of
> hours of getting it connected up and operational. Whatever protective
> circuits it has in it certainly didn't protect it from whatever caused the
> final to die!
>
>
>
> Based upon my very limited recent experiences, I tend to conclude that the
> gear just isn't being built as well as it used to be. I wonder just how much
> cheap Chinese parts are going into these new rigs?
>
>
>
> Ron, K8HSY
>
>
>
> Dr. Ronald E. Milliman
>
> Retired Professor of Marketing
>
>
> ------=_NextPart_000_0059_01D16518.4F98F5E0
> Content-Type: text/html;
> charset="us-ascii"
> Content-Transfer-Encoding: quoted-printable
>
> <html xmlns:v=3D"urn:schemas-microsoft-com:vml" =
> xmlns:o=3D"urn:schemas-microsoft-com:office:office" =
> xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
> xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" =
> xmlns=3D"http://www.w3.org/TR/REC-html40"><head><meta =
> http-equiv=3DContent-Type content=3D"text/html; =
> charset=3Dus-ascii"><meta name=3DGenerator content=3D"Microsoft Word 12 =
> (filtered medium)"><style><!--
> /* Font Definitions */
> @font-face
> {font-family:"Cambria Math";
> panose-1:2 4 5 3 5 4 6 3 2 4;}
> @font-face
> {font-family:Calibri;
> panose-1:2 15 5 2 2 2 4 3 2 4;}
> /* Style Definitions */
> p.MsoNormal, li.MsoNormal, div.MsoNormal
> {margin:0in;
> margin-bottom:.0001pt;
> font-size:11.0pt;
> font-family:"Calibri","sans-serif";}
> a:link, span.MsoHyperlink
> {mso-style-priority:99;
> color:blue;
> text-decoration:underline;}
> a:visited, span.MsoHyperlinkFollowed
> {mso-style-priority:99;
> color:purple;
> text-decoration:underline;}
> span.EmailStyle17
> {mso-style-type:personal-compose;
> font-family:"Calibri","sans-serif";
> color:windowtext;}
> .MsoChpDefault
> {mso-style-type:export-only;}
> @page WordSection1
> {size:8.5in 11.0in;
> margin:1.0in 1.0in 1.0in 1.0in;}
> div.WordSection1
> {page:WordSection1;}
> --></style><!--[if gte mso 9]><xml>
> <o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
> </xml><![endif]--><!--[if gte mso 9]><xml>
> <o:shapelayout v:ext=3D"edit">
> <o:idmap v:ext=3D"edit" data=3D"1" />
> </o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
> vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>Well, I =
> finally got my new ALS-1306 operational today. However, I was chasing DX =
> on 20 meters CW and suddenly my ALS-1306 went dead! I was only driving =
> it with 25 watts, and it was running a cool 500 watts output. I =
> immediately checked the Operator’s manual to see what it said =
> about resetting it if it just totally kicked off. It said to wait a few =
> minutes with it powered completely down, and it would reset itself. That =
> is what I did, but it never reset. I called Palma over to see if she =
> could spot anything, and she said there were a couple of lights =
> flashing, but the most important finding was that in the HV1 voltage =
> position of the meter, it read 50 volts, which it should, but in the HV2 =
> position, it read zero, when it should read 50 volts just like in the =
> HV1 position. I picked up the phone and called Ameritron and told the =
> service tech what happened and what the meter was reading, and he =
> immediately told me that I most likely had a blown final. There are 8 =
> transistors in the final, and he said that if just one of those =
> transistors went bad, it would shut down the whole amp, and I would get =
> the kind of reading I was getting from the meter. So, we boxed it back =
> up in the same box it came in and shipped it back to Ameritron this =
> afternoon. <o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p =
> class=3DMsoNormal>I am totally stunned! My newest TS-590s was defective =
> coming right out of the box, and I had to ship it to the Kenwood service =
> center to be repaired under its warranty, and now, my new ALS-1306 blew =
> up within a couple of hours of getting it connected up and operational. =
> Whatever protective circuits it has in it certainly didn’t protect =
> it from whatever caused the final to die! <o:p></o:p></p><p =
> class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>Based upon =
> my very limited recent experiences, I tend to conclude that the gear =
> just isn’t being built as well as it used to be. I wonder just how =
> much cheap Chinese parts are going into these new rigs?<o:p></o:p></p><p =
> class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>Ron, =
> K8HSY<o:p></o:p></p><p class=3DMsoNormal> <o:p></o:p></p><p =
> class=3DMsoNormal>Dr. Ronald E. Milliman<o:p></o:p></p><p =
> class=3DMsoNormal>Retired Professor of =
> Marketing<o:p></o:p></p></div></body></html>
> ------=_NextPart_000_0059_01D16518.4F98F5E0--
|
