[mythtv-users] STEP 3 Destroy your TV
beww at beww.org
Fri Feb 9 03:49:15 UTC 2007
On Feb 8, 2007, at 8:40 PM, David Brodbeck wrote:
> Brian Wood wrote:
>> That's a standard disclaimer for anything having to do with driving
>> monitors. It's been around since the first days of X.
>> It's really not such a problem these days, any monitor so old and
>> crappy that it could be destroyed by incorrect timings probably
>> *should* be blown up.
> It also involves a failure mode that's specific to CRT monitors. You
> can't blow up an LCD by driving it with an out-of-range signal as
> far as
> I know.
Correct. Most CRT displays use a "flyback" type of high-voltage power
supply where the horizontal scan frequency is stepped up by a
transformer. Too high a frequency can saturate the core of the
"flyback transformer" and cause other problems, up to and including
smoke in the vicinity and an end to normal operations.
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