T1 lg ysus

[abdekader]

I have T1 LG YSUS (eax61319402) tow transistor Q24,Q22 blown (short)

I changed this Transistor the same Transistor (30j124) but reshort the same problem

what's the solution to this problem
what's the common problems in these YSUS

[tw2005]

Re: T1 lg ysus

I have T1 LG YSUS (eax61319402) tow transistor Q24,Q22 blown (short)

I changed this Transistor the same Transistor (30j124) but reshort the same problem

what's the solution to this problem
what's the common problems in these YSUS

Don't know, don't read much about these especially component repair of the ysus.

maybe a bad buffer took out the ysus or maybe the zsus can damage it but rarely I'd expect replacing a couple of IGBTs and expect it to work. FET driver ICs are most likely damaged and who knows what else (check the underside SMD stuff too)

Download this guide and check the ybuffers, ysus and zsus



I guess by T1 you mean a PDP50T100000 panel ,Possibly LG 50PJ350 etc.

[abdekader]

Re: T1 lg ysus

I replaced the Ysus Ok the TV working So, the problem in YSUS but I want help to repair it

[Recycleinformatique]

Re: T1 lg ysus

Did you have the answer on how to repair YSUS

[tw2005]

Re: T1 lg ysus

always check the Zsus too, i killed my Zsus and repair popped again, nearlymade same mistake then realised the Ysus is connected to Zsus. ysus also shorted. One board took the other out

[Keshenatech1]

Re: T1 lg ysus

Just curious if you ever figured out the problem in the original Y-sus board and got it working? I have a similar issue with 6 outputs shorted in mine, Q02, 04,11, 22, 24, 26, and 28. Replaced them and it blew out again, only Q24-28. Trying to figure out if the problem is on that board or something else in the set.
Thanks