[TechAssist] Re: service info Dell M780 Monitor
- From: HSWAD@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 28 Jun 2003 15:00:01 EDT
I took your suggestion and did check out IC601. The input voltage was 170
volts and output fluctuated between 0 and 140 volts very fast. Base of
Horizontal
output showed drive pulses untill shutdown occured. I ordered a replacement
to IC601 which crosses to an NTE1788. Will let you know the results. Thanks a
bunch. Hollis Bates Field Engineer-retired, Lewiston, Maine HSWAD@xxxxxxx
In a message dated 6/28/03 11:12:03 AM Eastern Daylight
Time, techforce@xxxxxxxxxxxx writes:
> Subj:[TechAssist] Re: service info Dell M780 Monitor
> Date:6/28/03 11:12:03 AM Eastern Daylight Time
> From:<A HREF="mailto:techforce@xxxxxxxxxxxx";>techforce@xxxxxxxxxxxx</A>
> Reply-to:<A
> HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx</A>
> To:<A HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx</A>
> Sent from the Internet
>
>
>
> Sounds like SMPS Problem. That IC regulator I mentioned before, might be
> worth checking out.
>
> Steve Hearns
> Technotronic Dimensions, NY (USA)
> 1-877-817-9885 (Voice / Fax US Only)
> WWW.TECHNOTRONIC-DIMENSIONS.COM
>
> ----- Original Message -----
> From: <HSWAD@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, June 28, 2003 7:18 AM
> Subject: [TechAssist] Re: service info Dell M780 Monitor
>
>
> > Monitoring the Flyback pulses at the Horizontal output transistor shows no
> > substained activity at all no matter whether the monitor is hooked to a
> computer
> > or not. Just wont start up. Hollis Bates, Foeld Engineer-retired,
> Lewiston,
> > Maine, HSWAD@xxxxxxxx
> > In a message dated 6/27/03 10:53:08
> PM
> > Eastern Daylight Time, alg@xxxxxxxxxxx writes:
> >
> > > Subj:[TechAssist] Re: service info Dell M780 Monitor
> > > Date:6/27/03 10:53:08 PM Eastern Daylight Time
> > > From:<A HREF="mailto:alg@xxxxxxxxxxx";>alg@xxxxxxxxxxx</A>
> > > Reply-to:HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx
> > > To:HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx
> > > Sent from the Internet
> > >
> > >
> > >
> > > Does this also happen if the monitor isn't connected to a computer. If
> > > work not connected then problem is it's not detecting incoming video.
> > >
> > > Al G
> > > Al's TV-Electronics
> > > Pembroke Ont.
> > > Canada
> > >
> > > HSWAD@xxxxxxx wrote:
> > > >
> > > > The monitor led goes green for one second and then orange. unit shuts
> down
> > > > instantly without ever giving any indication of anything on the
> screen.
> > > All of
> > > > them that I have that are down are showing the same symtoms.Hollis
> Bates,
> > > Field
> > > > engineer-retired, Lewiston, Maine HSWAD@xxxxxxx
> > > > In a message dated 6/27/03 9:42:35 AM
> Eastern
> > > > Daylight Time, techforce@xxxxxxxxxxxx writes:
> > > >
> > > > > Subj:[TechAssist] Re: service info Dell M780 Monitor
> > > > > Date:6/27/03 9:42:35 AM Eastern Daylight Time
> > > > > From:HREF="mailto:techforce@xxxxxxxxxxxx";>techforce@xxxxxxxxxxxx
> > > > > Reply-to:HREF="mailto:techassist@xxxxxxxxxxxxx";>
> techassist@xxxxxxxxxxxxx
> > > > > To:HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx
> > > > > Sent from the Internet
> > > > >
> > > > >
> > > > >
> > > > > It seems unsure what chassis is actually in this Monitor. A lot of
> them
> > > Were
> > > > > Sony equivalent Chassis used in Sony Monitors, Some were Panasonic.
> > > > >
> > > > > What is the problem with your Monitor ? There is a history of Shut
> Down
> > > > > Problems, and geomitry / Centering Problems.
> > > > >
> > > > > Steve Hearns
> > > > > Technotronic Dimensions, NY (USA)
> > > > > 1-877-817-9885 (Voice / Fax US Only)
> > > > > WWW.TECHNOTRONIC-DIMENSIONS.COM
> > > > >
> > > > > ----- Original Message -----
> > > > > From: <HSWAD@xxxxxxx>
> > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > Sent: Friday, June 27, 2003 8:16 AM
> > > > > Subject: [TechAssist] service info Dell M780 Monitor
> > > > >
> > > > >
> > > > > > Yesterday I spent two hours on the phone to Dell trying to find a
> > > source
> > > > > for
> > > > > > service info for the M780 monitor of which I have several that are
> > > down. I
> > > > > > just allowed myself to be herded from one extension to another and
> > > kept a
> > > > > record
> > > > > > of where I was sent and as much as possible who I talked to. I
> first
> > > > > > approached them in need of service info. That did not produce
> results.
> > > I
> > > > > then changed
> > > > > > to wanting to know where to take them in my area to be repaired.
> No
> > > > > results
> > > > > > just more being tossed from one person to another. Next I tried to
> > > find
> > > > > out who
> > > > > > would repaid a unit if I were to purchase one from them and it
> needed
> > > > > repair
> > > > > > either in warranty or out. No results. Lastly I tried to get
> answers
> > > if
> > > > > the unit
> > > > > > were to be in warranty. Was given a number to call that no one
> > > answered.
> > > > > > Something is really amiss at this company. They have great
> products
> > > and
> > > > > have a
> > > > > > good sales talk. Just thought I would let you know. Hollis Bates,
> > > Field
> > > > > Engineer-
> > > > > > retired, Lewiston, Maine. HSWAD@xxxxxxx
> > > > > >
> > > > >
> > >
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