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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.
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73, Norm/KC1BMD

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