TX-P42S10B 5 led flash error

[buggsy]

TX-P42S10B

got in a this plasma tv in error 5 led flash indicated 5v sos by panasonic service manual indiscates replace the  A  board.

checked on net someone posted changed ysus board fixed fault.

if unplug ysus get 7 flash error then reconnect get the original 5 flash any ideas as donot want to purchase wrong board also ysus is out of stock every where at the moment.