[time-nuts] 2nd 5370B
robert8rpi at yahoo.co.uk
Fri Feb 11 19:07:51 UTC 2011
Perhaps I needed to be clearer on the WD-40. I use one of the pen dispensers with a fibre tip. Alternatively a slightly moistened lint free cloth. NOT an aerosol. You do not want it everywhere, just the poard fingers. I don't apply it to the sockets at all. If all you have is the aerosol,spray it into a small container first and allow the propellent to boil off. do you know of specific problems with WD-40? I've used it for years and never had any problems. I cant say the same for some supposed "contact cleaners" that had aggresive solvents or silicone (definte no-no) in them.
On the socketed ICs, you dont need to remove them. Just ease them up in the socket and press them down again. This breaks any oxide layer.
- On Fri, 11/2/11, Don Latham <djl at montana.com> wrote:
From: Don Latham <djl at montana.com>
Subject: Re: [time-nuts] 2nd 5370B
To: "Discussion of precise time and frequency measurement" <time-nuts at febo.com>
Date: Friday, 11 February, 2011, 18:46
Paul is right! NO WD40, wrong stuff!!!!!!
The chips can be reseated by GENTLY twisting the baords and pushing the
chips back into the sockets (I know, but it works. note gently!), or just
firmly pushing on the chips first on one end and then the other. I've also
observes chips with one pin buckled during manufacture insertion that
managed to work and then lose connection, so look carefully at pin
> This is ideed something to do with internal external reference. The switch
> is in the wrong position or someone took the oven oscilator out and sold
> on epay for $150.
> Simply switch to external and supply a 10 mc sig 1 volt. If it works find
> out whats missing.
> I would not use wd40 nor pull chips out of sockets. That can introduce
> additional problems. Its a gamble.
> On Wed, Feb 9, 2011 at 9:27 AM, William H. Fite <omniryx at gmail.com> wrote:
>> The language is Elvish and says, "Can you believe that sucker bought
>> piece of crap?"
>> OK, OK, only teasing. [?]
>> On Wed, Feb 9, 2011 at 3:49 AM, Poul-Henning Kamp <phk at phk.freebsd.dk
>> > In message
>> <AANLkTimaTP72p6XqNZko7xWLRRiBWOktf0r55qzHcSrk at mail.gmail.com
>> > Pete
>> > Lancashire writes:
>> > >This one makes fan noises the yellow trigger/level LEDs light up but
>> > >the LEDs controlled buy the CPU don't. One segment of one digit
>> > >flashes when the power switch is hit. Both were advertised as "Power
>> > >But since both are complete and look fairly clean, not really
>> > Check the ext/int clock switch.
>> > >Anyone ID this language ?
>> > Looks like thai or vietnamese.
>> > --
>> > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
>> > phk at FreeBSD.ORG | TCP/IP since RFC 956
>> > FreeBSD committer | BSD since 4.3-tahoe
>> > Never attribute to malice what can adequately be explained by
>> > _______________________________________________
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