[TechAssist] Re: Compaq monitor MV500 Model 315U
- From: "Technotronic Dimensions" <Steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 4 Sep 2003 17:53:58 -0400
That FCC Number says its a TATUNG Model C4DZE , but cannot find much else.
Very Strange there is no white Sticker. Unless it Fell off inside the Cage
surrounding the FBT ?
Steve Hearns
Technotronic Dimensions, NY (USA)
1-877-817-9885 (Voice / Fax US Only)
WWW.TECHNOTRONIC-DIMENSIONS.COM
----- Original Message -----
From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, September 04, 2003 2:46 PM
Subject: [TechAssist] Re: Compaq monitor MV500 Model 315U
> I just did a value check on cap with cap meter. I can find no other
numbers
> yet on FLY but the FCC ID is BJMC5DU
> Phillip R Hull STET
> phil245@xxxxxxxxxxxxx
> FAX 517--569-3075
> Professional Technicians only
> ----- Original Message -----
> From: "Technotronic Dimensions" <Steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, September 04, 2003 2:06 PM
> Subject: [TechAssist] Re: Compaq monitor MV500 Model 315U
>
>
> > Got an FCC ID ? Had a Chungwah once with Open Filaments but it powered,
> just
> > gave a blank Screen.
> >
> > Ths Cap check is sort of a general Check, because really there is
1500VDC
> in
> > actual Operation of the Unit applied to it. I dont think you checked it
> with
> > 1500V on it right? I use a Sencore and apply 600V there which is the Max
> it
> > can go to. Dunno what you used, but I would say if there was a small
> amount
> > of Test Voltage it 'could' still read a different capacitance if more is
> > applied. There could also be an open or a Short in a winding, but you
> would
> > need to do a LOPT Ring Test.
> >
> > Still would be good if you had other FBT numbers to post. This Way I
could
> > check history of Failures.
> >
> > Steve Hearns
> > Technotronic Dimensions, NY (USA)
> > 1-877-817-9885 (Voice / Fax US Only)
> > WWW.TECHNOTRONIC-DIMENSIONS.COM
> >
> >
> > ----- Original Message -----
> > From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, September 04, 2003 1:42 PM
> > Subject: [TechAssist] Re: Compaq monitor MV500 Model 315U
> >
> >
> > > I get 3.1 nF so it looks like its not the fly. This unit has a
> chunghwa
> > > picture tube if that means anything
> > > Phillip R Hull STET
> > > phil245@xxxxxxxxxxxxx
> > > FAX 517--569-3075
> > > Professional Technicians only
> > > ----- Original Message -----
> > > From: "Technotronic Dimensions" <Steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Thursday, September 04, 2003 11:11 AM
> > > Subject: [TechAssist] Re: Compaq monitor MV500 Model 315U
> > >
> > >
> > > > Hi Phil:
> > > >
> > > > Sounds to me like the FBT is breaking down under load.
> Post
> > > the
> > > > Numbers on the White Sticker on the FBT here, and It may be a known
> Part
> > > > that fails alot. You can also Pull the Anode cap, and from there to
> the
> > > > ground pins on the FBT, you ought to measure from 2-9 nF. Thats the
> > > Internal
> > > > Cap in the FBT, and if its Open or too high in value, it will cause
> > > shutdown
> > > > like you are seeing.
> > > >
> > > > Steve Hearns
> > > > Technotronic Dimensions, NY (USA)
> > > > 1-877-817-9885 (Voice / Fax US Only)
> > > > WWW.TECHNOTRONIC-DIMENSIONS.COM
> > > >
> > > > ----- Original Message -----
> > > > From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Thursday, September 04, 2003 11:02 AM
> > > > Subject: [TechAssist] Compaq monitor MV500 Model 315U
> > > >
> > > >
> > > > > I usually do not work on these but I have this one that won't stay
> on.
> > > > > When you push the power button the lite turns green and Hi volts
> comes
> > > up
> > > > > for about 4-5 seconds and high volts shuts off and light turns to
> > amber
> > > > > color. I checked the best I could without a manual and I have
> scoped
> > > the
> > > > > vertical and its OK. I have 15v ,12v, 75v ,-9 and 8volts and
> filiment
> > > are
> > > > > lit. I checked all the tips I could find but found nothing on
this
> > > > model#
> > > > > 315U
> > > > > Any help sure appreciated,
> > > > > Thanks
> > > > > Phillip R Hull STET
> > > > > phil245@xxxxxxxxxxxxx
> > > > > FAX 517--569-3075
> > > > > Professional Technicians only
> > > > >
> > > > >
> > > >
> > >
> >
>
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