¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io

Re: Tune knob faulting


 

¿ªÔÆÌåÓý

Tom,

As I said, there are a few exceptions... Tuning knobs can be one of those. The key element here is that it's single board surface mount FRU. With few exceptions, if anything of consequence goes wrong, it's a board swap. I am of course speculating since I'm not the chief design engineer for their company. The Russians have a unique way of doing things, so I'm guessing as to the lack of service manual. The single board makes me believe that this is their logic concerning not providing a service manual. It could also be a proprietary issue, in that, they do not want to provide any information concerning their design. I don't think the manufacturer cares about what most of the radio manufacturers do, frankly.

All of your questions are valid, however, I do have answers for concerning Russian intellectual property. Under the current circumstances, I'm more concerned about replacement parts and service, which made it hard for me make the purchase. The entire supply chain could fall apart overnight, depending upon the whim of the Russian government and how the sanctions begin to affect their capability to support their radio. It's difficult to predict what will happen in the future concerning Russian companies.

L... WG9U

Thomas Tumino wrote on 4/11/2023 10:09 AM:
Interesting. ?But you know every other manufacturer is also doing surface mount yet they still issue service manuals. ?And certainly a tuning knob is not a surface mount component. Perhaps with enough info we could all help diagnose the tuning problem and come up with a solution. ?

Every manufacturer I know of has made mistakes in component selection in ham gear, and most of those mistakes seem to be discovered/diagnosed by users armed with service manuals. ?It¡¯s a much faster process to effectively ¡°crowd source¡± your refinements as opposed to relying solely on an in house tech staff. ?I mean after all, there will always be more users in the field than designers in the company.?

Also you know there have been many QST articles on replacing surface mount components. ?It¡¯s not beyond a hobbyist if they want to do it. ?

Do other Russian companies release service manuals? ? Is the Russian intellectual property law scheme different in such a way that publishing service manuals would disclose otherwise secret information? ?Just a thought.

But really if there¡¯s a reason lab599 should divulge it. ?Maybe they don¡¯t even have one internally. ?

73,
Tom, N2YTF?

Sent by phone, please forgive my brevity and poor typing.

On Apr 11, 2023, at 10:57 AM, Larry Guillot <guillot@...> wrote:

? Tom,

My guess on this would be: 1. They are Russian and don't go by the norm. 2. It's a single board, surface mount technology FRU. They may not see the need to have a maintenance manual since it's mostly a board replacement and the rest will have to be handled at the depot, with very little exceptions. Frankly, the majority of the work on surface mount FRU, has to be done at the manufacturer, so I'm certain that's what they are thinking.

Larry, WG9U

Thomas Tumino wrote on 4/11/2023 8:26 AM:
In my mind, to not publish a service manual is really against the ethos of Ham Radio. ?Isn¡¯t ham radio all about experimenting, learning, and tinkering? Fixing, modifying l, and building gear is really part of ham radio. ?

I don¡¯t know of any ham manufacturer that hasn¡¯t published a service manual for their gear. ?Many charge for the manual, but to not publish one at all??! ?Not cool Lab599.

A service manual is especially important for a small, new company. ?No one wants gear that may become unserviceable due to a lack of a service manual if the company stops or can no longer support the owners in the future. ?

Perhaps one reason why people are reporting slow repairs from the US facility is that even they don¡¯t have a service manual¡­

Can someone with some inside connection to Lab599 try to get them to release the service manual in some fashion? I for one am happy to pay for it as long as it¡¯s priced reasonably. ?

73,
Tom, N2YTF?


Sent by phone, please forgive my brevity and poor typing.

On Apr 11, 2023, at 8:39 AM, Norm - KC1BMD <noka@...> wrote:

?On Tue, Apr 11, 2023 at 07:26 AM, Thomas Tumino wrote:
Has Lab599 released a service manual for the rig? Anyone have a link to it?
If they did, I would think it would be on the web site ( Downloads section) but I only see a "User" manual.
?
--
73, Norm/KC1BMD

--
Sent from

--
Sent from

Join [email protected] to automatically receive all group messages.