My 8500B just broke down...use about 3 years plus...warranty just finished...power on the below screen led blinking in RED...call Sony to request for service and repair and informed that if power pcb spoil the replacement maybe about $200 but if the MB spoil the replacement cost about $1.6k!!!
OMG...the MB got so expensive to replace....
Try to find second hand. Part price is always expensive, especially SONY.