Insignia NS-L42Q-10A Red Tint and Inverted Picture

[doesntmind]

The TV displays in what looks like inverted colors with a red tint. Im guessing this is a tcon board but want to run it by you guys in case I can swap a chip for cheap. I get 12V on both sides of the fuse on the tcon board

[budm]

Re: Insignia NS-L42Q-10A Red Tint and Inverted Picture

What was done to the TV before this problem occurs?
Do you know the history of the TV?

[nomoresonys]

Re: Insignia NS-L42Q-10A Red Tint and Inverted Picture

This looks like it, could hit the contact seller button and give them your sticker, serial, board numbers or whatever they need to see if its a match. https://www.ebay.com/itm/LG-42-NS-L4...pBg:rk:27:pf:0

[nomoresonys]

Re: Insignia NS-L42Q-10A Red Tint and Inverted Picture

Could try a factory reset. If you do take the back cover off, what is the panel number? its usually on the back, metal part/chassis somewhere.

[budm]

Re: Insignia NS-L42Q-10A Red Tint and Inverted Picture

Check the GAMMA Voltages at the test points.

[nomoresonys]

Re: Insignia NS-L42Q-10A Red Tint and Inverted Picture

Might help: https://www.badcaps.net/forum/showthread.php?t=42462

[doesntmind]

Re: Insignia NS-L42Q-10A Red Tint and Inverted Picture

What was done to the TV before this problem occurs?
Do you know the history of the TV?

The owner of TV says the colors gradually got worse. Beyond that I dont know the history.

Could try a factory reset. If you do take the back cover off, what is the panel number? its usually on the back, metal part/chassis somewhere.

Factory Reset did not resolve issue

I believe the panel model number is either
E249AZNKW3BYNN
or
C39C6434PDZZ-ZS1100
or
T420HW04

Check the GAMMA Voltages at the test points.

VG1 - 15.2V
VG2 - 14.9V
VG4 - 12.8V
VG6 - 13.5V
VG8 - 3.6V
VG10 - 3.3V
VG11 - 7.8V
VG12 - 7.2V
VG13 - 7.1V
VG15 - 5.1V
VG17 - 4.3V
VG19 - 12.4V
VG21 - 860mV
VG22 - 300mV

Could not find VG3, VG5, VG7, VG9, VG14, VG16, VG18, VG20

[nomoresonys]

Re: Insignia NS-L42Q-10A Red Tint and Inverted Picture

Looks funky, wonder if tcon can be fixed if needed, had a look online for a tcon, think I saw one for 60 dollars on U K or Spain ebay iirc. seems pretty pricey.

[budm]

Re: Insignia NS-L42Q-10A Red Tint and Inverted Picture

The owner of TV says the colors gradually got worse. Beyond that I dont know the history.



Factory Reset did not resolve issue

I believe the panel model number is either
E249AZNKW3BYNN
or
C39C6434PDZZ-ZS1100
or
T420HW04


VG1 - 15.2V
VG2 - 14.9V
VG4 - 12.8V
VG6 - 13.5V
VG8 - 3.6V
VG10 - 3.3V
VG11 - 7.8V
VG12 - 7.2V
VG13 - 7.1V
VG15 - 5.1V
VG17 - 4.3V
VG19 - 12.4V
VG21 - 860mV
VG22 - 300mV

Could not find VG3, VG5, VG7, VG9, VG14, VG16, VG18, VG20

Either replace the GAMMA Reference Voltage IC or replace the T-CON board (match the PCB assembly P/N as shown on the Barcode sticker).
https://www.badcaps.net/forum/attach...8&d=1545070454

[nomoresonys]

Re: Insignia NS-L42Q-10A Red Tint and Inverted Picture

Not the easiest thing to do, theres other chip changing videos there of course, the pros make it look easy, this is first one that popped up. https://www.youtube.com/watch?v=jg4_nn3nBzs

[nomoresonys]

Re: Insignia NS-L42Q-10A Red Tint and Inverted Picture

Two boards there, out of stock, I can't tell if either one is a match for yours. https://www.shopjimmy.com/catalogsea...?q=NS-L42Q-10A