I have a problem with TV trion fx21p66. i cannot search channel, and cannot keep it when I found it,also I think that is problem with eeprom. on display write GOMB. I tried with orginal code 521 but is not possible, also i tried with codes from 000 to 999 but also there is no possible.

SOURCE: Remote control codes

I own a One-for-All universal remote control (model URC-4220) ,and my booklet says that the setup code for a LG TV (without a built-in DVD or VCR) is either 0178 or 1265.

SOURCE: Auto Channel Search

sounds like the tuner section of the main pcb isn't working properly.

SOURCE: channel search

Go to set up see if tv is set for antenna or cable. Set it for which ever you have.

SOURCE: Since the digital switch over I can't find a

U have a digital antena?Or a roof atena?Have one of these.U well increase ur arial ranges to recieve free air DTV signal much stronger and farter ranges.

Bud Martin

• 11361 Answers
• Posted on Jun 05, 2011

SOURCE: cable connection, when I perform

Did select CABLE in the channel scan setting, it should have AIR/CABLE setting so it can look for the cable signal or off the air (antenna) signal.
If you have the setting correctly setup, then the tuner circuits may have gone out. Some TV has the tuner on the main board, it can be expensive to replace the whole main board assembly.
Boards: www.shopjimmy.com
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.