Microtek Scanmaker 4600 light red

Archived from groups: alt.comp.periphs.scanner (More info?)

I just picked this up second hand. It seems to function except that the scan
lamp is red. Anyone know what causes this?

Chris

Archived from groups: alt.comp.periphs.scanner (More info?)

According to Microtek, the scan lamp is bad.


"CSM1" <nomoremail@nomail.com> wrote in message
news:Vp4ce.3783$461.2917@newssvr11.news.prodigy.com...
> "Chris" <cjohnson1379nospam@earthlink.net> wrote in message
> newsFWbe.630$7F4.407@newsread2.news.atl.earthlink.net...
>>I just picked this up second hand. It seems to function except that the
>>scan lamp is red. Anyone know what causes this?
>>
>> Chris
>>
> Red led?
>
> --
> CSM1
> http://www.carlmcmillan.com
> --
>
>

Archived from groups: alt.comp.periphs.scanner (More info?)

"Castor" <castor2cod1@~hotmail.com> wrote in message
news:42748c78$0$7267$636a15ce@news.free.fr...
>
> "Chris" <cjohnson1379nospam@earthlink.net> a écrit dans le message de
news:
> qlPce.2071$7F4.2062@newsread2.news.atl.earthlink.net...
> > According to Microtek, the scan lamp is bad.
> >
>
> I've an old Microtek Phantom 4800 (SCSI connection), I replaced the main
> lamp several time by one bought to the regular lights shop in the street
and
> it was working fine ...
>
> Today, when powering on the light is blinking for some long time before
> stabilizing on and I think the capacitorn(called starter usually) is
> probably dead. I tried to replace this capacitor but I can't finf it
inside
> the scanner !!!
>
> Does somebody has any clue how to repair it ?
> Thanks in advance
> --
> Cordialement / Regards
> Castor , e-sexa
>
> enlever le ~ pour utiliser l'adresse courriel
> withdraw the ~ to use email address
>
>
If you have a standard fluorescent lamp, then start at the wires coming out
of the lamp fixture, follow those wires.

This page will show you how a fluorescent lamp works. There are two
different types and three different circuits.
http://www.ustr.net/electronics/fluorescent.shtml

I notice one error in the Preheat Circuit, there is normally a capacitor
across the switch contacts of the starter. (The capacitor is built into the
Starter and not a separate part).

If the scanner uses a standard fluorescent lamp, you may be able to get the
parts at a electric parts supply company.

--
CSM1
http://www.carlmcmillan.com
--