RCA 46LB45RQ solarization effect

[Daveleone]

Hi all! I have an RCA 46LB45RQ that came to me dead. I replaced the EEPROM on the main board with one I bought off of eBay that matched my set (ver B1). Now I have a picture and audio, but it looks solarized (see attached photo). The solarization affects both the displayed image AND the OSD.

My question - do you think it's:
1) A bad t-con?
2) A misprogrammed replacement EEPROM (maybe programmed for an A1 set?) Can a misprogrammed EEPROM even cause this problem?
3) A secondary problem with the main board?
...AND...
4) Is there any way to test/confirm whether the problem lies in the t-con or the main board?

As always, your help is greatly appreciated!
Thanks,
--Dave

[attainteddragon]

Re: RCA 46LB45RQ solarization effect

i don't think that the eeprom (even if wrong) could be to blame.

on the t-con, test the vgma test points. there will probably be around 20 of them.

[dick_barton]

Re: RCA 46LB45RQ solarization effect

It certainly looks like a solarized screen but I would first check in the service menu to make certain it's set up for the led panel fitted in the set.

[Daveleone]

Re: RCA 46LB45RQ solarization effect

It certainly looks like a solarized screen but I would first check in the service menu to make certain it's set up for the led panel fitted in the set.

This worked! I found this youtube video: https://www.youtube.com/watch?v=pbffKtXjTog
When I changed the LVDS map setting on my TV from "default" to any 'B' setting (6-bit B, 8-bit B, 10-bit B) the picture cleared right up. Not sure which setting is the correct setting, but I chose "10-bit B" because it sounded the best.

Thanks so much for the help!
--Dave