I have the KF-60WE610. Bought in Dec 2003. Replaced the first lamp
burn out on Aug 2007. Has burned out again in only 1 year, probably
about 1,000 hours. Replacement lamp does not have either OSRAM or
Philips markings, but is Made in Japan. Lamp was replaced by circuit
city under warranty.

Given that the tv set is 5 years old and a lamp has burned out so
quickly, would it make sense to go ahead and replace the lamp ballast
(driver) as a preventive measure? I'm guessing these are subjected to
a harsh operating environment, degraded, and may have played a part in
the early lamp failure. Do lamp failures decline after ballast
replacement? The part is only $106 at the Sony site. The part
appears to have an upgraded part number, so it is possible that there
have been improvements in its design.

wrote in message
...
I have the KF-60WE610. Bought in Dec 2003. Replaced the first lamp
burn out on Aug 2007. Has burned out again in only 1 year, probably
about 1,000 hours. Replacement lamp does not have either OSRAM or
Philips markings, but is Made in Japan. Lamp was replaced by circuit
city under warranty.

Given that the tv set is 5 years old and a lamp has burned out so
quickly, would it make sense to go ahead and replace the lamp ballast
(driver) as a preventive measure? I'm guessing these are subjected to
a harsh operating environment, degraded, and may have played a part in
the early lamp failure. Do lamp failures decline after ballast
replacement? The part is only $106 at the Sony site. The part
appears to have an upgraded part number, so it is possible that there
have been improvements in its design.

The lamp driver pretty much either works or it doesn't. Examine it to see
that it's plug-in connections aren't charred, and do make sure the fans are
clean. They often get so occluded with dust that the lamp gets insufficient
cooling, shortening lamp life.


Mark Z.

On Aug 18, 3:25*am, "Mark D. Zacharias" wrote:
wrote in message

...

I have the KF-60WE610. *Bought in Dec 2003. *Replaced the first lamp
burn out on Aug 2007. *Has burned out again in only 1 year, probably
about 1,000 hours. *Replacement lamp does not have either OSRAM or
Philips markings, but is Made in Japan. *Lamp was replaced by circuit
city under warranty.

Given that the tv set is 5 years old and a lamp has burned out so
quickly, would it make sense to go ahead and replace the lamp ballast
(driver) as a preventive measure? *I'm guessing these are subjected to
a harsh operating environment, degraded, and may have played a part in
the early lamp failure. *Do lamp failures decline after ballast
replacement? *The part is only $106 at the Sony site. *The part
appears to have an upgraded part number, so it is possible that there
have been improvements in its design.

The lamp driver pretty much either works or it doesn't. Examine it to see
that it's plug-in connections aren't charred, and do make sure the fans are
clean. They often get so occluded with dust that the lamp gets insufficient
cooling, shortening lamp life.

Mark Z.

Thanks for the reply. Is the why some of the lamp housing doors
overheat and warp? There is a SB on this I believe. My lamp area
does not exhibit any signs of excessive heat.

wrote in message
...
On Aug 18, 3:25 am, "Mark D. Zacharias" wrote:
wrote in message

...

I have the KF-60WE610. Bought in Dec 2003. Replaced the first lamp
burn out on Aug 2007. Has burned out again in only 1 year, probably
about 1,000 hours. Replacement lamp does not have either OSRAM or
Philips markings, but is Made in Japan. Lamp was replaced by circuit
city under warranty.

Given that the tv set is 5 years old and a lamp has burned out so
quickly, would it make sense to go ahead and replace the lamp ballast
(driver) as a preventive measure? I'm guessing these are subjected to
a harsh operating environment, degraded, and may have played a part in
the early lamp failure. Do lamp failures decline after ballast
replacement? The part is only $106 at the Sony site. The part
appears to have an upgraded part number, so it is possible that there
have been improvements in its design.

The lamp driver pretty much either works or it doesn't. Examine it to see
that it's plug-in connections aren't charred, and do make sure the fans
are
clean. They often get so occluded with dust that the lamp gets
insufficient
cooling, shortening lamp life.

Mark Z.

Thanks for the reply. Is the why some of the lamp housing doors
overheat and warp? There is a SB on this I believe. My lamp area
does not exhibit any signs of excessive heat.


Yes, that is why the doors warp. I believe there was also a class-action
regarding this, at least pertaining to certain models.

Mark Z.

"Mark D. Zacharias" wrote in message
...

wrote in message
...
On Aug 18, 3:25 am, "Mark D. Zacharias" wrote:
wrote in message

...

I have the KF-60WE610. Bought in Dec 2003. Replaced the first lamp
burn out on Aug 2007. Has burned out again in only 1 year, probably
about 1,000 hours. Replacement lamp does not have either OSRAM or
Philips markings, but is Made in Japan. Lamp was replaced by circuit
city under warranty.

Given that the tv set is 5 years old and a lamp has burned out so
quickly, would it make sense to go ahead and replace the lamp ballast
(driver) as a preventive measure? I'm guessing these are subjected to
a harsh operating environment, degraded, and may have played a part in
the early lamp failure. Do lamp failures decline after ballast
replacement? The part is only $106 at the Sony site. The part
appears to have an upgraded part number, so it is possible that there
have been improvements in its design.

The lamp driver pretty much either works or it doesn't. Examine it to see
that it's plug-in connections aren't charred, and do make sure the fans
are
clean. They often get so occluded with dust that the lamp gets
insufficient
cooling, shortening lamp life.

Mark Z.

Thanks for the reply. Is the why some of the lamp housing doors
overheat and warp? There is a SB on this I believe. My lamp area
does not exhibit any signs of excessive heat.


Yes, that is why the doors warp. I believe there was also a class-action
regarding this, at least pertaining to certain models.

Mark Z.
Doors and lamp housing general over heat due to the fact that the main lamp
cooling fan, Mounted above and to the rear of the lamp, gets totally
clogged up by debris. When ever these are opened up, that fan must be
checked for correct airflow, I.e. either thoroughly cleaned or replaced.
Also the temp sensors and associated wires should be checked.
The later version replacement fans are a bit more tolerant of the dust
buildup, but they also can clog up due to dirty/dusty locations these sets
are subjected to. Seen way to many of these sets that have deformed doors,
lamp housings, and other related plastic parts.

Many of the after market lamps only last one month or less.
I used them in Mitsubishi, Samsung and Sony TV sets, and was having a
nightmare! my company gave up on after market lamps and switched to OEM.

Where did you buy the lamp from?


wrote in message
...
I have the KF-60WE610. Bought in Dec 2003. Replaced the first lamp
burn out on Aug 2007. Has burned out again in only 1 year, probably
about 1,000 hours. Replacement lamp does not have either OSRAM or
Philips markings, but is Made in Japan. Lamp was replaced by circuit
city under warranty.

Given that the tv set is 5 years old and a lamp has burned out so
quickly, would it make sense to go ahead and replace the lamp ballast
(driver) as a preventive measure? I'm guessing these are subjected to
a harsh operating environment, degraded, and may have played a part in
the early lamp failure. Do lamp failures decline after ballast
replacement? The part is only $106 at the Sony site. The part
appears to have an upgraded part number, so it is possible that there
have been improvements in its design.