Cornboats
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Dec 2, 2013, 10:16 AM
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LG50 PC1 -psu shorts
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Lg50 pc1d I have trouble fault finding a fault on psu board YPSU-JO12B. Changed shorted Q855 SD20N60 power fet Symptom-fuse keeps blowing. All other Power fets tested ok. removed Relays RL101 & R102 & tested ok removed C603 & c603 power capacitors and tested ok. removed diode D601 and tested ok. Last time I tested the thyristers TH01 blew up as well as blowing the fuse. Any help would be welcome.
(This post was edited by Cornboats on Dec 2, 2013, 5:35 PM)
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