CONFIDENTIAL
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DO NOT COPY
Page 9-1
File No. SG-0000351
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Chapter 9 Trouble shooting
(TV, COMPOSITE, VIDEO) IS NOT DISPLAY CORRECTLY
Start
Input signal good?
1. Check video
2. Check DVD player
U401 input correct?
1. Check VIDEO signal
2. Check signal between U401
(IF IN AV mode)
LVDS output correct?
1. Check power system U401:
+3V3SB, +3.3V, +1.15V, +1.5V_DDR2
2. Check Y1’s frequency is OK?
1. Check JM4, JM5 Connect is good?
2. Is panel working ok?
END
U401 output correct?
1. Check mini-LVDS cable
2. Check U401 clock (27MHz)
3. Check LVDS signal
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