Question about Philips 60P8341 60" Rear Projection Television
A storm knocked the power out for a few seconds. The TV came back on fine but the picture is all fuzzy or blurry. All type/print/words shown on the screen are double; almost impossible to read.
Hello stevenkgray and ADIMEN,
I think what has happened is the your TVs are out of focus which could be due to a voltage problem. First I would warn you that this is a problem in the High voltage section of your TV and caution should be taken, in fact I would suggest that if you do not have a background in electronics that you get the TV checked and fix by a qualified TV repair technician. However if you do have a background the next few lines will make sense and you might be able to effect these repairs yourself.
Items needed for troubleshooting:
High Voltage probe (40Kv)
Universal Video Analyzer (UVA)
1) Unplug the TV and take the back off of it
2) connect the UVA to the tuner F connector and setup the UVA to send a test pattern into the TV
3) Power the TV back up and turn to the channel set on the UVA
4) check the anode voltage on the CRT with the HV probe (connected to the Multimeter set to volts and grounded) and compare it to the voltage on the schematic.
5) If the voltage is not right adjust the focus and screen controls on the Integrated High Voltage Transformer (IHVT) to obtain the proper voltage.
6) Check the pattern to see if it is still fuzzy.
If the pattern is still fuzzy you may have to inspect/replace the IHVT and or its associative circuitry.
If you suspect that the IHVT is bad you can perform a ring test on the transformer using the UVA. (The instructions on how to do this are on the UVA quick steps pull out. or the instructions can be looked up on the web.
I hope this helps
Posted on Jul 04, 2008
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Posted on Jan 02, 2017
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