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LG 42LH90 Manual page 74

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Main Board X100 and X800 Crystal Checks
Main Board X100 and X800 Crystal Checks
IC100 Microprocessor Crystal
2.56Vp/p 12Mhz
Set on or off. Use bottom leg.
MAIN Board
X100
1.58V
1.51V
1.59V
1.54V
X800
74
February 2010
IC800 XD Engine Crystal
2.25Vp/p 12Mhz
Set on. Use bottom leg.
LCD DV
42LH90

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