Trouble Shooting - Sharp LC-65LE643U FPTW Service Manual

Chapter 9
(TV, COMPOSITE ,VIDEO ) IS NOT DISPLAY CORRECTLY
Start
Input signal good?
U1 input correct?
U1 output correct?
LVDS output correct?
1. Check JL1 , JL2 Connect is good?
2. Is panel working ok?
END
CONFIDENTIAL – DO NOT COPY

Trouble shooting

N0
Yes
N0
Yes
N0
Yes
N0
Yes
1. Check video
2. Check DVD player
1. Check VIDEO signal
2. Check signal between U1
(IF IN AV mode)
1. Check power system U1 :
+3V3SB, +1.2V, +1.8V_DDR2
2. Check Y1's frequence is OK?
1. Check mini-LVDS cable
2. Check U1 clock (24MHz)
3. Check LVDS signal
Page 9-1
File No. SG-0000239