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My week old LA-1k started just booting up to a white screen. Tried plugging a cable into the Yaesu jack like suggested on here. It did nothing.? Ended up dissconnecting the keying line. It boots up then. Talked to Mark at Palstar. He had me run a ground wire from the Amp to the transciever. So far it has worked. Hope it keeps working.
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开云体育Isn’t all your equipment supposed to be grounded together on a ground buss?? Or was it already that way, and you needed to add a second ground wire directly to the radio? ? From: [email protected] [mailto:[email protected]]
On Behalf Of Steve Shep
Sent: Friday, July 17, 2020 8:05 PM To: [email protected] Subject: [la1k] White screen ? My week old LA-1k started just booting up to a white screen. Tried plugging a cable into the Yaesu jack like suggested on here. It did nothing.? Ended up dissconnecting the keying line. It boots up then. Talked to Mark at Palstar. He had me run a ground wire from the Amp to the transciever. So far it has worked. Hope it keeps working. |
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I joined this forum to assist me with making a decision about if I should purchase the LA-1K. Would it be correct of me to be a little apprehensive due to the number of comments regarding the trouble operators have experienced with their LA-1K. This unit has been out for some time.
Thank you for your feedback. Mike |
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Chuck Scott
Michael:
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Keep in mind that people don't often just sign up to this mail group and submit a post saying that it's working fine today, but if there's a problem they would be more likely to join the group and ask for help. So, I'll break that trend and say that my LA-1K and HF-AUTO are working fine today and that from what I've seen this is good equipment and the people at Palstar are always willing to help if you have a problem. Chuck - N8DNX On 7/27/2020 7:22 AM, Michael Mangano wrote:
I joined this forum to assist me with making a decision about if I should purchase the LA-1K. Would it be correct of me to be a little apprehensive due to the number of comments regarding the trouble operators have experienced with their LA-1K. This unit has been out for some time. |
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Mine works great use it primarily on SSB and FM 10 through 160 On Jul 27, 2020 9:13 AM, Chuck Scott <cscott@...> wrote:
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Steve Pierce
开云体育My LA 1K will be a year old in August. I have not had any issues with mine. It’s a terrific amplifier!On Jul 27, 2020, at 9:06 AM, davenlr@... wrote:
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I hope that new shoppers don't get the wrong idea....Palstar is, in my opinion the Cadillac of tuners, amps, etc....the LA 1K issues will be solved by them i'm sure...their customer support is unsurpassed and they are nothing at all like? "That three letter company" that we have all come to expect we will have to fix a cold solder joint or remove an extra screw left floating around in the case........Please cut them some slack! tnx 73 de k8mcn |
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Bob NN5D
I've had my LA-1K for 22 months.? I run it at 240 volts.? The very first time I put the amp into transmit, it showed 940 watts out with 35 watts drive. I was elated.? One minute later, I did another transmit with the linear, and it showed approximately 400 watts out.? I tried for a full day to get the unit to start working at full power again, but with no success. After contacting Palstar and listening to them argue with me that it was my fault, I was allowed to send it in for repairs.? Fifteen days later, I was contacted by Palstar that a Q-2 chip was replaced, which is one of the finals.? The Palstar owner told me I had over driven the unit, and it was my fault. He said there would be no charge for repairs, but I had to pay return shipping. I had no choice but to do what he wanted because he had my amp, and I wanted it back.?
My experience with the owner made me angry. I did not over drive the unit, nor did I transmit into high SWR, or any of the things he accused me of doing.? What happened was obvious. The amp had a bad chip that died within minutes of my first use. I thought that's what having a warranty meant -- to protect a new buyer from a product malfunction or defect. I shipped it back to them at my expense, and I had to pay for return shipping, which I don't think was my responsibility. Since that time, it has performed flawlessly.? It is well built and robust.? I have had zero problems since it was repaired and returned. I will also add that I purchased the HF-Auto two months after acquiring the LA-1K. I love this tuner, and would highly recommend it. Please note, this is not intended to bash anybody or any product. It's simply what happened to me with my LA-1K.? Obviously, I'm happy with Palstar, or I would not have purchased the HF-Auto afterwards. In my opinion, if you're in the market for a solid state HF amplifier, then look no further. |
开云体育My only complaint about the LA-1K is the noise. The base noise is already pretty substantial with a pretty high pitched hurling sound, but after 4 or 5 FT contacts at 5W input the bigger fans come on and then it gets really loud. ? I have an AT2K manual tuner and that thing is just a beast, it tunes anything. ? 73, Bernd – KB7AK ? From: [email protected] <[email protected]> On Behalf Of Bob NN5D
Sent: Monday, July 27, 2020 2:36 PM To: [email protected] Subject: Re: [la1k] White screen ? I've had my LA-1K for 22 months.? I run it at 240 volts.? The very first time I put the amp into transmit, it showed 940 watts out with 35 watts drive. I was elated.? One minute later, I did another transmit with the linear, and it showed approximately 400 watts out.? I tried for a full day to get the unit to start working at full power again, but with no success. After contacting Palstar and listening to them argue with me that it was my fault, I was allowed to send it in for repairs.? Fifteen days later, I was contacted by Palstar that a Q-2 chip was replaced, which is one of the finals.? The Palstar owner told me I had over driven the unit, and it was my fault. He said there would be no charge for repairs, but I had to pay return shipping. I had no choice but to do what he wanted because he had my amp, and I wanted it back.? |
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I have had my LA-1K and HF-AUTO for about a year now. Overall they work very well, however I have a continuing problem trying to get any digital mode to work without having the amp turn off because of SWR Bypass. Calls and emails with Palstar have not helped, they keep telling me it is my antenna. Unfortunately I only have the 1 and it is a multi-band long wire. I find it strange how I have had zero troubles in SSB mode, even at 900 watts, but it can't handle 100 watts of digital (5W input). If you want to do a lot of the digital stuff I would recommend caution, but for SSB it is pretty bullet proof.
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开云体育Its giving you a SWR bypass using an HF-AUTO?? What do the two SWR meters read when it trips?? Try temporarily replacing the coax between the two. ? From: [email protected] [mailto:[email protected]]
On Behalf Of Al Womelsdorf via groups.io
Sent: Monday, July 27, 2020 9:44 PM To: [email protected] Subject: Re: [la1k] White screen ? I have had my LA-1K and HF-AUTO for about a year now. Overall they work very well, however I have a continuing problem trying to get any digital mode to work without having the amp turn off because of SWR Bypass. Calls and emails with Palstar have not helped, they keep telling me it is my antenna. Unfortunately I only have the 1 and it is a multi-band long wire. I find it strange how I have had zero troubles in SSB mode, even at 900 watts, but it can't handle 100 watts of digital (5W input). If you want to do a lot of the digital stuff I would recommend caution, but for SSB it is pretty bullet proof. |
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The last time I heard of someone experiencing this the issue ended up being their Balun. ?It was overheating and causing the SWR to be unstable. ?It was only with digital because that was the only mode that continually puts 100% rf thru the antenna during transmit. Bill Grover N3EYF
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David Jones
I have the LA-1K and HF-Auto in operation for ~18?months. A word of caution if one uses either the Key or ALC RCA phono plugs on the rear of the LA-1K. They are only connected to the rear panel circuit card assembly via soldered connections - they are physically isolated from the rear panel, i.e. no physical contact/connection. If stress is placed on either phono plug over time they can break their soldered connection(s) and operate intermittently or fail outright. I had this happen on my LA-1K for the Key plug. I switched over to using the DB-9 interface for the Key input, all is well. I also have one of the loud fan units - even upon application of power from a cold start. In my QTH, I considered this a small annoyance, the LA-1K was located on the floor in the shack under a desk. OTA performance - rock solid amplifier. I have 240V mains power, no issues in operating SSB phone at full rated power for hours on-end. Depending upon band and antenna used, I obtain full power with?a drive input between 40W-to-50W. On a few occasions, just with 35W drive. I rarely use with a digital mode so I cannot offer much other than when I have used in digital, temperature rises much more rapidly than SSB phone - but still never an issue. Palstar recently (earlier this month) posted a firmware update on their website, V1.07B. If your LA-1K has on older version, check the release notes to see if it addresses any issues you may be experiencing. |