I see a service manual for the XAA at http://www.samsungparts.com/Products/Parts_and_Accessories/HLR6178WX/XAA/Default.aspx
You'll want that if you want to dive into repairs.
standby/temp light will remian on after the green lamp light flashes. the bulb stays on for about a min then goes off. anybody know this one? when i power the remote there is a click in tv but screen never lights up. i also have a problem w only having half the screen when it was working. any tips wld be welcome