This thing has a mind of it own. If you shut it off, it take sometimes 8 hours then maybe 24 hours to turn it back on. Once its on we leave it on. Something is locking this TV out like it's on a timer. Some times we leave on continously if we know we are going to have an event. The SLEEP TIMER is disabled and the day and time are set correctly. It's very frustrating! Best regards, Dan...
I have never worked on a Mitsubishi with this problem but I have seen it in other sets. Most notably Zenith sets from about the same time. The Zenith sets have an electrolytic capacitor which fails (changes value) and causes the power supply to switch at a lower frequency. If the frequency is low enough the set will never turn on but if it is not less than half the operating frequency the set may turn on sometimes and run forever or not. It sounds like your Mitsu has a similar problem. This would not be an expensive fix but probably is beyond your expertise.
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