Take along a long 5/32 hex head driver (allen key) and pull the lenses to check the tubes for burn. Look VERY carefully as logo or other burn in may be faint. This is the ONLY reliable way to check tube condition, its possible to have wear that will not show up on an all white screen. Its questionable if you should care, if its not visible, but its nice to know if its there. Also, Marquee's count hours the entire time they are plugged in, so CRT hours are your only concern, chassis hours can be very high and not really affect the pj at all.
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