[TechAssist] Re: Sony LCD proj KF50XBR800 picture intermittent on/off
- From: "Damon" <DamonEB@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 27 Jun 2005 23:14:17 -0500
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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