[TechAssist] Re: Sony LCD proj KF50XBR800 picture intermittent on/off
- From: Jim Myers <jr.myers@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 28 Jun 2005 09:55:15 -0500
One thing everyone forgot, logic! If you hear the ballast trying to fire
the lamp then the "ballast power source" is good, the "power on" signal
to the ballast is good, the ballast is good, the lamp is bad.
The only reason we routinely replace both the lamp and the ballast is
because 1. The set is in warranty AND 2. It is another 50 to 70 miles
each way to go back. If it's out of warranty AND in town we only replace
what it takes to get it working again.
A far as I know every one we have seen where the lamp would turn off
then turn back on has been a bad lamp.
********************************
Since 1972 *
Jim Myers *
Telrad Electronics *
Fort Wayne Indiana *
********************************
Wayne Vanaman wrote:
> Calm down. I don't know if it is in warranty or not, and I have worked
> on several that were not in warranty.
>
> And I would replace both parts anyway.
>
> 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:
>
>>Isn't this still IN WARRANTY? Get both parts, and install Lamp 1st.....will
>>likely be the cure if the symptoms follow my previous post below.
>>
>>Damon B
>>Telrad Electronics
>>Fort Wayne IN
>>----- Original Message -----
>>From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
>>To: <techassist@xxxxxxxxxxxxx>
>>Sent: Tuesday, June 28, 2005 6:33 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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>>>>>>>>
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>>>>>>>>
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