[TechAssist] Re: Sony LCD proj KF50XBR800 picture intermittent on/off
- From: "Damon" <DamonEB@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 28 Jun 2005 07:26:36 -0500
At this point, there are 2 variations of Lamp Driver Boards, I THINK they
run about $150. If you've done warranty work you'll have several bad ones
that actually work, or maybe an intermittant one lying around the
office.....at least I do.
I wonder if that one sitting on my dashboard for the last 9 months is a good
"testing board"?? I should have marked it Bad/Good/Intermittant.....and
possibly Generation 1 and Generation 2.
Damon B
Telrad Electronics
Fort Wayne IN
----- Original Message -----
From: <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, June 28, 2005 7:01 AM
Subject: [TechAssist] Re: Sony LCD proj KF50XBR800 picture intermittent
on/off
> I love these. No buying a 10 dollar IC as a test.No, major parts
> purchases. I guess before you do, do you call and get approval from
> the customer "incase this fixes this we have a go"? And would you just
> figure on replacing both? As far as the economics of the job...
> Phil
>
> ----- Original Message -----
> From: Wayne Vanaman <Wayne@xxxxxxxxxxxxxxxxxxxxx>
> Date: Tuesday, June 28, 2005 7:33 am
> Subject: [TechAssist] Re: Sony LCD proj KF50XBR800 picture
> intermittent on/off
>
> > From what I have read either the lamp or the ballast (or the
> > ballast
> > power supply etc) could be a problem.
> >
> > Don't you love intermittants.
> >
> > Wayne Vanaman
> > Omega Electronics
> > 6904 W Fairfield Dr
> > Pensacola, Fl. 32506-3310
> >
> > Wayne@xxxxxxxxxxxxxxxxxxxxx
> > WWW.PensacolaTVRepair.Com
> >
> > 850-456-5995 voice
> > 850-458-6369 fax
> >
> >
> > Damon wrote:
> > > Well, I've had 2 XBR800's with bad lamps......and I think I
> > replaced one
> > > Lamp Driver board
> > > Weird thing about this is the symptom.....TV illuminates, about
> > 30 - 60
> > > seconds later it shuts down (the lamp does), then about 30-60
> > seconds later
> > > you hear the Lamp fire, lights up quick.........runs about a
> > minute, then
> > > shuts down again......
> > >
> > > You would Ass-u-me it acts like one of the thermoswitches is
> > kicking in/out
> > > or the Lamp Driver board is shutting down, but it's actually the
> > Lamp at
> > > fault.
> > >
> > > Damon B
> > > Telrad Electronics
> > > Fort Wayne IN
> > > ----- Original Message -----
> > > From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Monday, June 27, 2005 8:59 AM
> > > Subject: [TechAssist] Re: Sony LCD proj KF50XBR800 picture
> > intermittent> on/off
> > >
> > >
> > >
> > >>I rather suspect that they mean lamp/ballast matching problems,
> > but that
> > >>isn't what they say.
> > >>
> > >>They also claim that the flickering CRT problem is in fewer than
> > 1% of
> > >>those sets, which means half the people in Pensacola own those
> sets.
> > >>
> > >>Wayne Vanaman
> > >>Omega Electronics
> > >>6904 W Fairfield Dr
> > >>Pensacola, Fl. 32506-3310
> > >>
> > >>Wayne@xxxxxxxxxxxxxxxxxxxxx
> > >>WWW.PensacolaTVRepair.Com
> > >>
> > >>850-456-5995 voice
> > >>850-458-6369 fax
> > >>
> > >>
> > >>Jim Myers wrote:
> > >>
> > >>>ALL projection sets with a lamp have lamp problems! How could
> > they NOT
> > >>>have lamp problems?
> > >>>Maybe someday they will have an LED light source to replace the
> > lamp.>>>
> > >>>
> > >>>********************************
> > >>>Since 1972 *
> > >>>Jim Myers *
> > >>>Telrad Electronics *
> > >>>Fort Wayne Indiana *
> > >>>********************************
> > >>>
> > >>>
> > >>>Wayne Vanaman wrote:
> > >>>
> > >>>
> > >>>>Sony "claims" that these models (kf50 and 60xbr800 and
> > df60dx100) do not
> > >>>>have lamp problems.
> > >>>>
> > >>>>I always believe Sony, don't you?
> > >>>>
> > >>>>Wayne Vanaman
> > >>>>Omega Electronics
> > >>>>6904 W Fairfield Dr
> > >>>>Pensacola, Fl. 32506-3310
> > >>>>
> > >>>>Wayne@xxxxxxxxxxxxxxxxxxxxx
> > >>>>WWW.PensacolaTVRepair.Com
> > >>>>
> > >>>>850-456-5995 voice
> > >>>>850-458-6369 fax
> > >>>>
> > >>>>
> > >>>>Rich M wrote:
> > >>>>
> > >>>>
> > >>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>I always replace the lamp and ballast the first go around,
> > also educate
> > >
> > > the
> > >
> > >>>>>customer on the proper use of the et.
> > >>>>>
> > >>>>>1. make sure there is a lot room around the unit for proper
> > ventilation>>>>>
> > >>>>>2. make sure the unit is not on a switched outlet
> > >>>>>
> > >>>>>3. better to leave the unit on between shows if only 30 min
> > to 2 hours
> > >
> > > a
> > >
> > >>>>>part, the cooling and heating of the lamp decrease the lamp
> > life.,>>>>>
> > >>>>>4. don't move the tv after you turn it off because the lamp
> > is very
> > >
> > > fragile,
> > >
> > >>>>>give it a couple hours to cool
> > >>>>>
> > >>>>>5. Also put the unit on a U.P.S battery backup. So if you
> > lose power
> > >
> > > the
> > >
> > >>>>>lampstill have time to cool. then turn off set.
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>>From: "tvservice" <tvservice@xxxxxxxxxxxxx>
> > >>>>>>Reply-To: techassist@xxxxxxxxxxxxx
> > >>>>>>To: <techassist@xxxxxxxxxxxxx>
> > >>>>>>Subject: [TechAssist] Sony LCD proj KF50XBR800 picture
> > intermittent>
> > > on/off
> > >
> > >>>>>>Date: Fri, 24 Jun 2005 15:42:04 -0500
> > >>>>>>
> > >>>>>>Hi group,
> > >>>>>>am servicing this proj tv it will come on normal for about 1
> > minute>
> > > then
> > >
> > >>>>>picture and sound go off, lamp goes out.
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>>Just as it goes out the "standby led" starts blinking, at 30
> > blinks>
> > > you
> > >
> > >>>>>heara click (relay) and at 4 more blinks picture and sound
> > are back. It
> > >
> > > will
> > >
> > >>>>>operate about another minute and repeat cycle.
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>>Is this a lamp or ballast problem?
> > >>>>>>I remember seeing something posted about the Sony LCD
> > projection sets
> > >>>>>
> > >>>>>havingsome ballast modification but I didn't save them.
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>>Please any help would be appreciated
> > >>>>>>
> > >>>>>>Robert
> > >>>>>>tvservice@xxxxxxxxxxxxx
> > >>>>>>H &H Electronics Inc
> > >>
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