Hitachi 53SBX59B Projection TV Power Supply Problem

[wn3six]

Greetings,

I have a Hitachi Model 53SBX59B projection TV that APPEARS to have some sort of power supply malady afflicting it. The symptom is that it does not always power on, either from the remote or the switch on the TV reliably. It has gotten even more sporadic in recent months. Is anyone aware of any known issues with this set's internal power supply, e.g., faulty electrolytic capacitors, that may stand out as a common failure item ? Any input would be greatly appreciated !
Thank you in advance for your input/comments.

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[minnie]

I'd start by replacing the vertical IC 601 LA7838.