Question about Panasonic TH-42PWD7UY 42 in. EDTV-Ready Plasma TV
Hi I bought the Plasma screen along with an Elonex Media system, the Elonex connected via the PC port and operated just fine. However since then I have tried to hook up various systems (Sony Vaio, DVD-HD Recorder, Satellite box)to my plasma using various input boards ( DVI, SCART, S-Video & Component ) all with the same result. The plasma displays the image transmitted to it for about 30 mins from cold and then just goes to a blank screen (no signal) if you then turn the plasma to either standby or off for approx 5 mins then back on the picture returns but now for only about 5 mins then goes off again and this continues. I have checked all the power save options and all seems fine. Can anyone help.
Posted for a similar problem:
This is an issue with IC 803 on the Z board. This is a 3.3 V regulator that supplies this voltage to the slot card cage. Most input boards use this voltage EXCEPT the component board which is why it keeps playing along whike the DVI, HDMI, or composite signals will cut out after warm-up.
This is a surface mount multi-pin IC and is a bit tricky to replace.
The entire board is PN# TNPA3198xx with suffix determined by what model 7 series plasma you have.
This was a problem from around Nov. 2004 to Mar. 2005
Posted on Mar 25, 2008
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