Question about ViewSonic VPW450HD 42 in. HD-Ready Plasma Television
SOURCE: TV just flashes different colors
You have entered a diagnostic colour test. With the TV powered on, hold the 'Menu' & 'Enter' together, then press the power button. Problem resolved
Posted on Sep 03, 2006
Got it. I was the 'guest' who posted that I had the same problem. Not the CTRL board as I earlier thought. It boils down to the Y-SUS board (right hand side as you face the back of the display) In the upper-upper left hand quadrant you'll find a small capacitor labelled "C70".
This is the naughty one.
You can verify this by removing the back of the display, powering up and then with a small extended flame lighter, GENTLY warming C70. All it takes is about 2 to 3 seconds and the display will steady up just like always.
C70 is a surface mount capacitor, most likely 33uf at 25 volts. Haven't confirmed this yet. Will post again when I've affected the repair on my VPW505.................
BTW: This is not something you want to attempt unless you have experience with electronics. No.....really!
Posted on Dec 30, 2008
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