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Equipment Repairs => PLASMA TV forum => Topic started by: t1412 on April 20, 2013,18:00:51

Title: samsung ps42b451b2wxxu
Post by: t1412 on April 20, 2013,18:00:51

hi chaps, got this samsung in it's a ps-42b451b2wxxu/bn44-00273b power supply,  red standby light flashing. 5 volt standby erratic voltages, i have taken  all transistors out of circuit and tested ok, transformer tm801s  is ticking that's were i am at the minute. any help would be great. thanks for your time

regards
shaun   

Title: Re: samsung ps42b451b2wxxu
Post by: clark97 on April 21, 2013,07:08:13

Try disconnecting Y-Sys and see if power comes up, sounds like a heavy load on Power Supply.

Title: Re: samsung ps42b451b2wxxu
Post by: t1412 on April 21, 2013,18:02:20

hi, i've  done this already and i do get the 5 volts.stable  but there's but no high voltage at the 2 large filter caps just a faint ticking coming from the transformer i'll study the service manual thanks for the interest



regards
shaun