Seiki TI12336-B (CV318H-T) Main Board for LE-55GB2 LOC. U9 EEPROM ONLY

180-Day Warranty
Ships same business day if ordered before 4pm CT!
We highly recommend matching your part number. Learn more
TI12336-B must be found on sticker. The eeprom you receive may be different from your original but it is a compatible replacement. All sales are FINAL and NO RETURNS will be accepted.


These main boards can have multiple failures, in addition to the EEPROM.

If EEPROM replacement does not repair your board, there are likely additional problems.

Symptoms EEPROM replacement MAY fix:

- On screen display is stuck on logo screen

- TV will not power on with remote or buttons (LED indicator remains same color)

- TV will not turn on after being off for 30+ minutes

- TV shuts off by itself during channel scan or when switching inputs

- TV turns on and is stuck in color test pattern mode forever

- TV turns on but there is no backlight (LED indicator shows TV is on but there is no image)

Known Models

Part Number:
180-Day Warranty
Part Type:
Integrated Circuit
Panel Number:

What is an IC?

IC stands for “integrated circuit” and it’s a set of electronic circuits on one small, flat piece (or “chip”) of semiconductor material, usually silicon. Large numbers of tiny MOSFETs (”metal-oxide-semiconductor field-effect transistors) integrate into the small chip.

Which symptoms does an IC fix in a TV?

•  Since a lot of symptoms could be the result of a failed or defective IC, please refer to any symptoms listed on this page or contact your local TV technician.

*These are helpful tips to get you started and don’t represent accurate diagnoses for every TV model and failure. If you’re unsure of your diagnosis, we recommend checking out our YouTube channel or reaching out to a local TV technician for assistance.

How easy is it to replace an IC?

You’ll need to have soldering experience to replace an IC on a board. If you don’t have that technical background, we suggest replacing the board instead.