Question about Standard (CRT) Televisions
I have an older Mitsubishi CRT TV, model CS-31MX1. The picture flickers between a nice picture and blue screen. It seems to improve somewhat as it warms up. I am curious what this is, how much it would be to fix (roughly) and if it is worth the fix.
After a typical picture tube ages it gets a coating of chemicals
(carbon, phosphor and various metals form heater filaments) on the red,
green or blue electron guns. This degrades any one or all three guns
over time. There is a process to "zap" or rejuvenate the picture tube. A "good" TV repair
shop will have the device to do this. The cost should be between 1 to
2 hours of repair labor. That equates to $75 - $150. The only thing is
that this process does not clean the guns effectively
and they can "cake up" again. Think of it as a coronary cleaning, it
does not mean the "plaque" can build back up. It will, and usually
within 1 to 3 years depending on how old the unit is and how long it is
on per day. The other alternative is replacing the picture tube. 2 - 3
hours of labor plus parts. An average picture tube (after technician's
mark up) costs anywhere from
$100 for 13'" set to thousands. Looking at your model, it's a 31". I
would guess at $400 - $500 just for the picture tube. I like Mitsu's.
A good machine. Right in line with Sony on up. (and better in a number
of occasions I have seen) When the cost of the repair is over 50% of
the cost of the unit, that's when I declare it replaceable at the hospital system where I worked. (Over 900 TVs) You should weigh the price too.
Hope this insight helps - Let me know if it did.
Posted on Feb 27, 2009
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