NEC Plasma fried component/Schematic/manual



A friend has two large Plasma screens with burned out power supplies.
He's a Broadcast Maintenance Engineer at a 24 hour news channel and can



fix any electronic equipment if he has a schematic or can identify the
parts.


These units are NEC PX-42VP4A


Does anyone have a schematic, service manual or insight into where to
get the following part, BLQH, which looks like a surface mount
transistor or what the equivalent parts is?


NEC has been unresponsive to requests for a service manual or
schematic.


Thanks all

.