Samsung PN60F5300B colorful panel

[jason123]

Hi folks, just turned on my spare bedroom TV and found this... any idea where to start? Barely 2 years old Plasma TV

[dick_barton]

Re: Samsung PN60F5300B colorful panel

Search the site to find how to run the self test patterns. If the test patterns run OK then it would look like a mainboard fault

[freakaftr8]

Re: Samsung PN60F5300B colorful panel

Looks like mainboard fault. NVRAM. Yes run test patterns on logic board.

[mmartell]

Re: Samsung PN60F5300B colorful panel

Control board ?

[dick_barton]

Re: Samsung PN60F5300B colorful panel

Can you can post pictures of your boards which would be helpful. It may be integrated on the mainboard.

Does this match your set?
https://elektrotanya.com/samsung_200.../download.html

[jason123]

Re: Samsung PN60F5300B colorful panel

Hi dick_barton... link takes me to a search and not a specific page, so I don't know if it's my set or not. I'll send photos tonight, but it would be great if I could get service manual with schematics so I can troubleshoot. Thank you

[jason123]

Re: Samsung PN60F5300B colorful panel

Haven't had a chance to open up this beast.. but looking at the photos, does anyone with Plasma expertise know if this is a main board / Logic board issue?

Menus seem to be fine, it's just video / audio sources are corrupt it seems. The "Test picture" as part of troubleshooting seems to show the same corrupt image. I'll get the boards pictured tonight

[dick_barton]

Re: Samsung PN60F5300B colorful panel

Looking at the first picture I would think there's a fault on the mainboard, however I would wait to see what others think since I'm no expert. Have you tried inputting a signal on any other input, ie HDMI, AV, USB?


Is this your control board?

[jason123]

Re: Samsung PN60F5300B colorful panel

Hi Dick_Barton.. Yes the very first photo is the photo of a DVD connected to HDMI1 / or HDMI2. When source is not detected, it's just a solid black screen

[dick_barton]

Re: Samsung PN60F5300B colorful panel

Is the circuit board in post#8 the same as in your set?

[jason123]

Re: Samsung PN60F5300B colorful panel

here is the beast without a cover on. Jumper 3 4 is labeled NT. Is this the one I'd short to get the test pattern?

[jason123]

Re: Samsung PN60F5300B colorful panel

Just shorted 3 and 4 pins, disconnected the LVD Cable.. and I got the full screen colors, white, then red, green, then gradiant, vertical horizontal diagonal.... so on..
So I guess that says it's the main card?? is it a reflow of bga issue, or Flash chip replacement?

[dick_barton]

Re: Samsung PN60F5300B colorful panel

It generally points to a faulty mainboard if it runs the self test with the mainboard disconnected and the pins on the control board shorted.

It tends to very hit and miss when heating up the mainboard and often if successful is (but not always) short lived.

[jason123]

Re: Samsung PN60F5300B colorful panel

Thank you. Someone suggested it might be the NVRAM, and Samsusng sell the NAND Flash IC, so I wasn't sure if reflowing is needed or replacing the Nand Flash IC, or maybe another IC.

[dick_barton]

Re: Samsung PN60F5300B colorful panel

It may well be but I don't have enough experience to offer further advice on any mainboard fault.
You could try to do a factory reset or a firmware update to see if updating the memory IC's cures the problem.

[jason123]

Re: Samsung PN60F5300B colorful panel

Thanks.. I did the reset and same results. I attempted a firmware update - it reported that there is no valid firmware present (I'm guessing it's because the firmware I have 1006.1 is the same as what it currently has in it)

[jetadm123]

Re: Samsung PN60F5300B colorful panel

Suggest you try:

1) www.shopjimmy.com to see if they sell a repair kit for your main board.

2) www.ptselectronicsinc.com to see if they offer a repair service for your board.

3) check eBay and shopjimmy for a price of a new main board.