I HAVE ONE OF THESE VESTEL MODELS UNDER THE DUAL BRAND IN FOR REPAIR THE PROBLEM IS IT WILL RUN WELL FOR ABOUT AN HOUR THEN THE 24V FROM THE PSU SHUTS DOWN ALL OTHER SUPPLIES ARE OK THEN SWITCH TO STAND BY THEN ON IT WILL RUN AGAIN. THE PSU IS NOT VESTEL BUT MADE BY LI SHIN CORPORATION, UK VESTEL HAVE NO DIAGRAM FOR THIS PSU AND NO RESPONSE FRO LI SHIN,ANY SUGGESTION WILL BE APPRECIATED.