[TechAssist] Re: Mastech capacitor checker model 390-735 [UPDATE]
- From: Gary McCartney <gary@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 13 Dec 2003 23:39:58 -0500
I was able to get the back cover off this cap meter. The instructions
state to remove the screws on the back to get at the battery, but they
don't tell you there is a screw hidden underneath the quality inspection
sticker. I did remove the rubber foot hoping to find a screw under that
but never suspected under the sticker.
I still don't have the meter working. I looked at the connections but
nothing obvious there. I will check some of the semiconductors and if I
don't find anything in short order, back to the supplier it goes.
> Gary McCartney
>
> McCartney Electronics
> Guelph Ontario Canada
> Est. 1984
> email: gary (at) number63.ca
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Gary McCartney
> Sent: Thursday, December 11, 2003 10:37 AM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Mastech capacitor checker model 390-735
>
> I just received this brand new Mastech capacitor checker model 390-735
> from Parts Express and the thing doesn't work. The display comes on ok
> but it doesn't measure any capacitors, it just stays at 000. The leads
> check ok. I removed the 2 screws from the rear bottom of the unit to
> remove the back cover but I can't get the cover off. It is stuck at the
> top somehow and I'm afraid of busting the plastic if I force it too
> much. I'm thinking the top is likely held by catches, so if anyone else
> has one of these meters and can advise me how to remove the back cover,
> maybe I'll find a bad connection or some simple reason why this thing is
> measuring. I hate to ship it back across the border and all. It will
> cost me almost as much as a new meter in shipping charges to get it
> back.
>
> Parts express up to date catalog, page 69.
>
> Thanks for any help.
> --
>
> Gary McCartney
>
> McCartney Electronics
> Guelph Ontario Canada
> Est. 1984
> email: gary (at) number63.ca
>
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