Need schematic for ANAN-10 (hermes) TCXO daughterboard

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BrianLloyd
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Joined: Wed Apr 17, 2019 11:33 pm

Need schematic for ANAN-10 (hermes) TCXO daughterboard

Postby BrianLloyd » Sat May 09, 2020 12:50 pm

My ANAN-10 stopped using the internal 10MHz TCXO reference, which ends up pulling the ADC clock off by about 100ppm. It works OK using an external reference. I need the schematic (and hopefully board layout) in order to troubleshoot.

I initially suspected how the 10MHz TCXO was soldered to the board and ended up reflowing those connections but that didn't solve the problem. I am able to confirm that the 10MHz from the on-board TCXO is getting onto the board but then it disappears.

I sent email to Apache Labs support mailbox but that bounced with "mailbox full". I remember when someone posted the design for this but it was about 10 years ago and doesn't seem to be in the archives.

Thank you for your help.
73 de Brian, WB5BL (was WB6RQN)
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w-u-2-o
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Re: Need schematic for ANAN-10 (hermes) TCXO daughterboard

Postby w-u-2-o » Sat May 09, 2020 2:00 pm

It would appear you did not look at the schematics section of this forum... ;)

viewforum.php?f=35
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BrianLloyd
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Re: Need schematic for ANAN-10 (hermes) TCXO daughterboard

Postby BrianLloyd » Sat May 09, 2020 5:59 pm

Thank you. Before I asked I searched the site. I evidently used the wrong keywords. After much additional effort I did find it referenced in another message. Still haven't found the schematics section. Where might one look for that?

Thank you.
73 de Brian, WB5BL (was WB6RQN)
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w-u-2-o
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Re: Need schematic for ANAN-10 (hermes) TCXO daughterboard

Postby w-u-2-o » Sat May 09, 2020 6:34 pm

Brian,

Did you not follow the link I put in my first post above? If not, why not?

73,

Scott
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DH1KLM
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Location: Germany

Re: Need schematic for ANAN-10 (hermes) TCXO daughterboard

Postby DH1KLM » Sun May 10, 2020 4:58 am

Direct link to the schematic.
download/file.php?id=18
73 de Sigi / DH1KLM
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BrianLloyd
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Re: Need schematic for ANAN-10 (hermes) TCXO daughterboard

Postby BrianLloyd » Sun May 10, 2020 10:19 am

Thank you both for the links. Problem located. Bad diode. Diodes on order from Mouser.
73 de Brian, WB5BL (was WB6RQN)

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