Samsung PN60E6500EF - Bad/grainy Picture

[henryvrensburg]

Hi guys

I got this TV from a friend. He complains about the TV switching on and off intermittently. I read all the threads on Badcaps about this issue. I also found a damaged Filter capacitor on the Power Supply (circled in black). It is a 68nF Cap, and I replaced it with a new one. I also checked for bad soldering joints, especially around heatsinks, also on the Y-Main Board and the Z-sub board.

The TV now stays on, but suddenly it's got grainy picture. I cleaned all the ends on the LDV and FCC cables, but with no avail.

Can the problem still lie on the Power Supply, or should I check for something else. The voltages on the connectors on the Power Supply when switched on is exactly as on the silk diagram on the board.

Thank you

[henryvrensburg]

Re: Samsung PN60E6500EF - Bad/grainy Picture

Help Please

[Unspun01]

Re: Samsung PN60E6500EF - Bad/grainy Picture

Does the fuzzy image appear across all inputs? Please test all analog and digital inputs.

Please upload high resolution pictures of your Y-Main plasma board. I believe this is one of the models with faulty, small blue ceramic capacitors... Replacing all of the small blue capacitors on y-main board may be solution but C5050, C5152, C5153 (10uF/50V possibly labeled 106) would be a start.

[henryvrensburg]

Re: Samsung PN60E6500EF - Bad/grainy Picture

On one of my efforts to try to read voltages of this TV, I accidentally shorted pins 2 and three on the cable going from the X-Sys to the Y-Sys. It made a loud popping sound, and since it doesn't want to switch on. I replaced the X-Sys, the Y-Sys as well as I send the Power Supply to a Repair Service in the States. When I plug the TV in, the little red light comes on, when I switch it one in gives the five double flashes. The mainboard worked fine before, it was just the picture that were grainy.

Can someone please help

[henryvrensburg]

Re: Samsung PN60E6500EF - Bad/grainy Picture

I removed all connectors from my Mainboard. I also shorted out holes 3 and 4 on my logic board. I also shorted PS-On on the Power supply to ground. I could hear the TV trying to switch on a few times, but I do not get the color pattern test screen

[tvtimmy]

Re: Samsung PN60E6500EF - Bad/grainy Picture

You only have to remove the LDVS cable and short pins 3 and 4. Everything else has to be connected.

[henryvrensburg]

Re: Samsung PN60E6500EF - Bad/grainy Picture

Hi tvtimmy

Can you please elaboratate on which LDVS cable to remove. Is it the one from the Mainboard to the Logic Board?

[tvtimmy]

Re: Samsung PN60E6500EF - Bad/grainy Picture

Here is the ldvs cable circled in red and holes 3 and 4 on the logic board.

[henryvrensburg]

Re: Samsung PN60E6500EF - Bad/grainy Picture

Thank you tvtimmy, I'll try that

[henryvrensburg]

Re: Samsung PN60E6500EF - Bad/grainy Picture

Hi guys

I connected pins 3 and 4 on the logic board, removing the LDVS cable as suggested by TVTIMMY.

I can hear the TV try to switch on, but it switch off immediately, and the standby light goes to 5 double flashes.

So far I've replaced almost everything in this TV. Only the Mainboard and Logic Board left. Can it be the Main Board