Hybrid IC IPM YPPD-J017C J018C repair

[nanis]

hi friends
this is a try to repair Hybrid IC IPM YPPD-J017C J018C
in my case transistor Q1 Q2 is dead by sort and the diodes are ok.
i used 30f131 but tv not works.does anyone now if i must remove the diodes or not?

[ReeceyBurger123]

Re: Hybrid IC IPM YPPD-J017C J018C repair

I can tell you now that solder job isnt the best. Apply flux make sure your ion is at max then redo them solder joints bud to make sure its not that.

[nanis]

Re: Hybrid IC IPM YPPD-J017C J018C repair

solders its ok 100%
my question remains
transistors 30f131 is powerfull IGBTs and i do not know if i must remove the diodes or not.
thank you for your anser

[nanis]

Re: Hybrid IC IPM YPPD-J017C J018C repair

specifically i mean the diodes FRD1 FRD2

[Alastair E]

Re: Hybrid IC IPM YPPD-J017C J018C repair

IF you are trying to repair an IPM that had Shorted devices, then the Driver-Chips and dual-transistor pairs will--Probably--be faulty also.

Diodes don't normally fail. 30F131 aint ideal replacement--Isnt Strong Enough...

So--Replace the Driver Chips(IC1) And the tiny Dual-Transistor pair, (IC3,4) as well as the two IGBTs with ones rated at 330V and 350A.

Better still--just buy a replacement IPM!

--These J017/8C/E IPM's fail in two ways. They go Short Or more often I find go Intermittent causing flashing screen.

I dont bother trying to repair a Shorted one--Too much else blows as well as IGBT's--chuck it and start again! Try UTSOURCE or fleabay.

Ones that are intermittent/flashing Can be repaired by replacing the IGBT's. Too much work, hassle and no guarantee of repair trying with shorted IPM!

[ReeceyBurger123]

Re: Hybrid IC IPM YPPD-J017C J018C repair

if you are trying to repair an ipm that had shorted devices, then the driver-chips and dual-transistor pairs will--probably--be faulty also.

Diodes don't normally fail. 30f131 aint ideal replacement--isnt strong enough...

So--replace the driver chips(ic1) and the tiny dual-transistor pair, (ic3,4) as well as the two igbts with ones rated at 330v and 350a.

Better still--just buy a replacement ipm!

--these j017/8c/e ipm's fail in two ways. They go short or more often i find go intermittent causing flashing screen.

I dont bother trying to repair a shorted one--too much else blows as well as igbt's--chuck it and start again! Try utsource or fleabay.

Ones that are intermittent/flashing can be repaired by replacing the igbt's. Too much work, hassle and no guarantee of repair trying with shorted ipm!

+1

[ReeceyBurger123]

Re: Hybrid IC IPM YPPD-J017C J018C repair

Well done for attempting a repair though I normally would never bother. Best to buy a replacement Ipm mate.

[nanis]

Re: Hybrid IC IPM YPPD-J017C J018C repair

really thanks both of you
i will buy a new one

[mockingbird]

Re: Hybrid IC IPM YPPD-J017C J018C repair

Better still--just buy a replacement IPM!

Alastair -

Would you be able to tell me please what's better in the long-term, replacing the MOSFETs with IGBTs, or purchasing a new hybrid module altogether?

And are the newer hybrids sold any better quality-wise than the ones that came stock with the plasmas?

Thanks

[mmartell]

Re: Hybrid IC IPM YPPD-J017C J018C repair

I thought the concensus was these were long out of production and no longer available new unless old stock. Unless a shipping container full of these was found on the bottom of the Pacific ocean ?