LG 42PG20 sound no picture

[martino]

Re: LG 42PG20 sound no picture

RF or RP? which SN TNPA5066?

SMD or TO-220P

http://www.ebay.com/itm/DG501RP-Manu...item1e85538f9d

That's the one!! and also a DG501LW,and yes,SN5066!! You're dead on

[tw2005]

Re: LG 42PG20 sound no picture

That's the one!! and also a DG501LW,and yes,SN5066!! You're dead on

I'll PM, don't want to mess this thread up on an unrelated issue.

[martino]

Re: LG 42PG20 sound no picture

Could someone look at this picture?
I drew the voltages on the picture...

That 8 pin IC is a 200D6,I can not find specs on it.
The voltage on pin#1 of that IC(left bottom pin) is directly connected to the resistor left below it,one side of resistor has 187v solid,other side(IC side) it climbs from 107v to 143v and then back to 107v in about a 3 second interval..

On the pic you can (kinda)see how that IC connects directly to the Mosfet that has 187 on only one pin..

Is it safe to say the IC is not functioning???

[tw2005]

Re: LG 42PG20 sound no picture

Could someone look at this picture?
I drew the voltages on the picture...

That 8 pin IC is a 200D6,I can not find specs on it.
The voltage on pin#1 of that IC(left bottom pin) is directly connected to the resistor left below it,one side of resistor has 187v solid,other side(IC side) it climbs from 107v to 143v and then back to 107v in about a 3 second interval..

On the pic you can (kinda)see how that IC connects directly to the Mosfet that has 187 on only one pin..

Is it safe to say the IC is not functioning???

yeah so it's a FET driver. type in 200D6 FET driver and you get

NCP1200D60R2

[Jeff Pepin]

Re: LG 42PG20 sound no picture

There's a repair kit for your symptom. Involves replacing a 14 pin IC, a diode, and a couple resistors:

IC905
D702
R711
R750

http://www.ohmsupplies.co.uk/YSUS-RE...000-NO-PICTURE

thanks tom ive just found this info , im working on 42pg10 with same symptom , pretty usefull for me ,