TV Repair Questions? Ask a TV Technician
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Does the lamp light up?
do you hear the color wheel running?
I hear something like a high pitch noise then the fans come on and then shut off but bulb never came on
and the red bulb light comes on by the power button
how long do you hear the noise?
about 15 seconds
does it soud like a computer hard drive?
I have the back off and see fans come on and run for like 5 seconds and go off but noise is like 15 seconds
yea u could say that like when u turn on a pc at first
ok thats the color wheel sounds like it works
do you see any ignition on the ballast?
there is a spark gap that should light up
only for a sec or 2
no don't see that
where would u see that
its on now the red light on power button that says bad bulb and there is no noise coming for tv at all
its in the back next to the lamp cage
it should do this even with no lamp
im gonna look
I tried I don't see nothing
then its not good news
you most leikly have a bad dmd board or light engine....(Philips never sold them seperately)
was your original lamp shown any damage ?
why did you change it?
also this tv had a tendancy to have bad connections from the power board tot he mai board and just wiggleig them may affect it
well it kept getting dimmer and dimmer then just quit and bad bulb light was on at power button
ok sounds like thats the issue
turn the tv on be in back of the tv when you do this
look for a trip switch for the lamp door
make sure that is bypassed to run the tv
(some models dont have one)
fire it up listen for Bzzzzzzzzzz to last 3 seconds and stop
I did like 50 times u hear that high pitch sound fans come on then shut off but red light stays on for a while then tv shuts off
then repeat 3 times
it should try 3 times
Bzzzzzzz sounds likes Bees buzzing
you have to be close
1st color wheel whines up to speed then Bzzzzzz '
I don't hear no buzzin I hear a electronic sound and fans come on for a sec then shut off it prob junk now right
or cost more to fix then its wortgh
yes it will cost more than its worth ...
you could try a ballast but I hate to see you sink more into it and it might not be it.....then your back to a light engine
make sure you did not pull any wires or cables on accident
ok thanks for your help