Samsung LE40M87BDX/XEU

[tom66]

Re: Samsung LE40M87BDX/XEU

OK, well, you found the fault.
Replace at minimum: QP801, QP802.
Test: RP809, RP810 (both 10 ohm), RP825, RP826 (both 100 ohm), DP804, DP805 (both diodes.)

If any of those components are bad you need to replace them all plus ZDP801 and ICP801.

[sordids999]

Re: Samsung LE40M87BDX/XEU

question also tom where can i get hold of a THERMISTOR SCK 056 thats burnt out ?

[tom66]

Re: Samsung LE40M87BDX/XEU

This is the device in question


This should be sufficient.
http://uk.farnell.com/epcos/b57211p0...-20/dp/2101617

Since the MOSFETs also blew I'm going to suggest you replace CP809 the large 450V capacitor, e.g.
http://uk.farnell.com/nichicon/lls2w...50v/dp/8813400

If you have an ESR meter and capacitance meter you can rule out this capacitor but I recommend replacing it if you cannot test it.

[sordids999]

Re: Samsung LE40M87BDX/XEU

RP809 =0.08 RP810=0.08 RP825=10.4 RP826=10.5 DP804=0 DP805=0

dam tom now we are getting to technical

[tom66]

Re: Samsung LE40M87BDX/XEU

Did you use ohm mode for all the resistors?

[sordids999]

Re: Samsung LE40M87BDX/XEU

well tom when i fix tvs i normally order a replacement psu etc but ordered myself one of these after finding this forum http://www.hizanherz.co.uk/images/EL060.jpg lol so struggling a little
and i can only imagine what you say to yourself on some of my replys while your sat at your pc

[tom66]

Re: Samsung LE40M87BDX/XEU

Ohms are green on that meter, does that help? I highly suggest you watch
https://www.youtube.com/watch?v=bF3OyQ3HwfU