Check MAIN B’D
JK405 Pin #1 5V ?
NO
Check MAIN B’D
R848 12V ?
Check that the USB Memory & HDD are supported by Spec
(Refer to User Manual’s USB cautions)
YES
Check MAIN B’D
R801 5V ? Replace MAIN B’D IC402
YES
NO
Replace MAIN B’D IC808
YES
YES Replace MAIN B’D IC 100
Check MAIN B’D
JK405 OK ?
YES NO Replace MAIN B’D JK405
Making
Revision
2009. 2 . 1
31/34
LCD TV Symptom USB No Connect Problem
32~47LH4000
Downloaded From TV-Manual.com Manuals