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Re: serit tuners ?

Posted: Mon Mar 25, 2019 8:52 pm
by F6DZP
With all my MiniTiouner, I use a 40 pin PCB header, never solder all the NIM pins.

Jean-Pierre F6DZP

Re: serit tuners ?

Posted: Tue Mar 26, 2019 1:48 pm
by YL3AKC
BATC sell Serit tuners with vertical mount. Where to get Serit with horizontal mount? I want to rebuild PCB and and want to get horizontal version. Something similar like DATVexpress version.

PS: when I purchased MiniTiouner from BATC, 1st thing what I done, was search for 1.25mm pitch soket for Serit. I like when it is possible to remove Serit from mainboard.

Re: serit tuners ?

Posted: Tue Mar 26, 2019 6:41 pm
by G8GKQ
Like the vertical mount tuners, I believe that the horizontal mount tuners are only available in batches of 100 from the manufacturer.

Dave, G8GKQ

Re: serit tuners ?

Posted: Mon Apr 08, 2019 1:33 pm
by g8bxh
I have a minitiouner batc v2. Strange fault with the lnb dc feed through. Thought I had a faulty lnb as the .3a fuse went on applying 18v for lnb (straight to pin on pcb, no link). After some fault finding it turns out the serit tuner is drawing current (one socket only) in a very unpredictable way. Usually about 4mA on first applying volts but slowly raising till the psu limits (1A). Nothing connected to coax skts and tuner otherwise working fine. This is only on the A skt, B works fine. My guess is one of the internal decoupling caps has gone a bit odd as there dosent seem much else other than the pcb itself in the path. Any one else had this prob?
73s
John

Re: serit tuners ?

Posted: Tue Apr 16, 2019 8:44 pm
by g8bxh
Replying to myself,
turns out it was the ceramic decoupling cap on pcb had become a voltage dependant resistor... at least a cheap fix.

Re: serit tuners ?

Posted: Thu May 16, 2019 4:44 pm
by m0xtd
Got exactly the same issue. Can you share the details on the fix please?

73s

Ciaran
M0XTD

Re: serit tuners ?

Posted: Thu May 16, 2019 5:51 pm
by g8gtz
I just created an item on the wiki detailing the problem and fix:

https://wiki.batc.org.uk/Serit_tuner#Re ... _DC_output

73's

Noel

Re: serit tuners ?

Posted: Thu May 16, 2019 7:31 pm
by m0xtd
Thanks Noel.

That really helpful. Does the value matter?

73s

Ciaran
M0XTD

Re: serit tuners ?

Posted: Tue May 21, 2019 2:32 pm
by M5SJM
Does anyone have a link to a suitable replacement for this RFC?

Stephen
M5SJM