[TechAssist] Re: Factory security requirements for service facilities
- From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 14 Mar 2002 07:53:25 -0500
You're right about that. In field service and bench service I never used
ESD, just touched the chassis ground to balance any potential difference and
you will be ok.
Point to ponder: If your body is at 100v potential and your chassis is at
100v potential and your IC is at 100v potential does current flow between
any of these?? No.
Damon Brunger
damon101@xxxxxxxxxxxxxx
Telrad Electronic Services
Ft Wayne, IN 46815
----- Original Message -----
From: "walter wood" <wwood_38478@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, March 14, 2002 12:49 AM
Subject: [TechAssist] Re: Factory security requirements for service
facilities
>
> Shouldn't that be "scratch your butt'? instead of
> "itch".
> I only scratch if i'm itching.
> seriously, I've been a QA in a manufacturing
> facility and they go absolutely ape over ESD.
> As a repairman, I've never worn a wrist strap in my
> life. It's real simple to discharge oneself and not
> kill any chips.
> Walter
> --- Damon <DAMON101@xxxxxxxxxxxxxx> wrote:
> >
> > Don't worry about it, don't go spending $2000.00
> > to protect a $3.00 part.
> > But use common sense: Wear cotton or
> > cotton/polyester clothes, they generate
> > very little static electricity compared to wool,
> > silk, nylon and rayon.
> > Don't rub your hair. Get a wood work bench, steer
> > clear of all steel, you'll
> > blow more chassis than you'll save. Get an
> > isolation transformer. If you can
> > find one get a big 20-30 amp 1 to 1 transformer
> > and run a service line to a
> > multitap grounded strip that you can attach to
> > the front of your workbench.
> > Then run normal unisolated strip to the back of
> > your bench for TEST
> > EQUIPMENT ONLY. Use orange plugs to identify
> > either the isolated or
> > unisolated ones. Use a wrist strap only, or touch
> > yourself to the tuner, if
> > you're at the same potential as the the part and
> > the chassis, electrons will
> > not flow, thus no damage.
> >
> > Don't itch your butt, don't wipe your nose, don't
> > play with styrofoam cups,
> > don't wear panties.
> >
> > Damon Brunger
> > damon101@xxxxxxxxxxxxxx
> > Telrad Electronic Services
> > Ft Wayne, IN 46815
> > ----- Original Message -----
> > From: "Central Service" <centralserv@xxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, March 13, 2002 4:02 PM
> > Subject: [TechAssist] Factory security
> > requirements for service facilities
> >
> >
> > > Hi group!
> > > I wonder if anyone of the authorized services
> > of well known brands like
> > RCA, AIWA, SONY, JVC, PANASONIC or others, ever
> > received some advice on
> > security measures that should be used on service
> > facilities (not only work
> > place).
> > >
> > > On service manuals you can find some of them
> > but they are hardly ever
> > used (even factory service facilities themselves
> > don't have nor use them)
> > >
> > > I'm talking about security measures that
> > factory may once have said
> > should be used when replacing IC's, (specially
> > LSI like CPU, Jungles or
> > dedicated high speed IC's), servicing cameras,
> > video, TV sets etc,. Also
> > about spare parts handling and storage, dressing
> > and work place itself.
> > >
> > > Say for example: grounding requirements,
> > special ESD handling (not only
> > discharging your hands), work place material,
> > floor conductive painting,
> > storage cabinet grounding, X-ray radiation test
> > after TV set fix, exposed
> > metal leakage grounding, etc.
> > >
> > > I would appreciate your comments. Please
> > answer to my e-mail with this
> > "of the topic info".
> > >
> > > Emilio Fraga
> > > CentralService
> > > Electronics & TV service
> > > (598 2) 929 1131
> > > Mvd. Uruguay.
> > >
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>
> =====
> Walter Wood
> Future Tech Home Center
> 2786 Hwy. 43 N.
> Lawrenceburg Tn. 38464
> 931-829-3337
> Fax 931-829-4044
> mailto:wwood_38478@xxxxxxxxx
>
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