Lg 60LB7100 Shows logo & has sound, but screen stays black. How do I fix it?

SOURCE: Sceptre X32GV-Komodo

See troubleshooting (p.96-99) of user manual
but Unfortunately i think this problem is for Sceptre ...
For technical help, contact our Sceptre Technical Support Group via email or
phone. Please have your Sceptre p/n number, serial number, and date of
purchase available before you call.
Tech Support E-mail : [email protected]
Customer Service Email : [email protected]
TEL : 1800-788-2878
Operation Hours : Mon - Fri at 8:30 AM – 5:30 PM Pacific Standard Time

SOURCE: screen goes black

Check and make sure the software is updated on the set.

SOURCE: polaroid flm373b

Try several different inputs.

SOURCE: help!!my cookie just shows LG logo!!

I have the KP501, too. Well, as I know, there is no difference between KP500 and KP501...it's the same OS...My Cookie doesn't want to turn on. When I try to turn on the phone it shows just the LG logo, more not. A few seconds later it turns automatically off and than 3 seconds later it turns on again....I don't know how is this happening...searching for help!!! please help me.... :S

Bud Martin

• 11361 Answers
• Posted on Jan 12, 2010

SOURCE: 1905FP Monitor Powers up, briefly shows logo, blacks out.

Look inside for bad caps with bulgng tops, worst case will be shorted out transistors in the backlight inverter circuits or bad lamps. Check to see if you do have he 12vdc for the inveter circuits. See example of failed monitors with bad caps here: http://s807.photobucket.com/home/budm/allalbums