This is one of 2 things:
a) bad solder joint (most likely).
b) a tiny crack in the pc board trace
The S&H is the LF398 IC U6. It can be the Track/Hold switch soldering, or
the wiring on the CLK (J5).
Paul S.
----- Original Message -----
From: "loopcycle" <loopcycle@...>
To: <motm@yahoogroups.com>
Sent: Monday, October 01, 2007 12:03 PM
Subject: [motm] funny problem with s&h module
> when i screw all four corners down to my stooge rails, the s&h does not
> sample.
> it just holds. if i tap on the front panel with my finger, it samples the
> input in time with my fingertaps.
>
> i thought this was cool for about 5 minutes, but now i want it to work
> right
> again.
>
> if i take a couple screws out, the s&h works normally.
> so, i think some pressure on the frontpanel must be aggravating a poor
> solder
> joint.
>
> instead of touching all the solder points on the board, are there a few
> particularly suspect i might go after first? maybe the pots first? any
> suggestions welcome, thanks!
>
>
>
> ____________________________________________________________________________________
> Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user
> panel and lay it on us.
> http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7
>
>
>
>
> Yahoo! Groups Links
>
>
>
>