LG 32LG2100 Service Manual page 71

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