[TechAssist] Re: Sony LCD proj KF50XBR800 picture intermittent on/off
- From: Wayne Vanaman <Wayne@xxxxxxxxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 28 Jun 2005 06:33:16 -0500
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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