LG L3200A Service Manual - Page 17

No Raster On Video Signal Input

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3. NO RASTER ON VIDEO SIGNAL INPUT NO RASTER ON VIDEO SIGNAL POWER CHECK OF CXA2040(U201) : U204(9V) POWER CHECK OF UPD64011(U904) : U905(3.3V), U906(1.5V) POWER CHECK OF MDIN150(U901) : U907(3.3V), U908(2.5V) POWER CHECK OF GM1501(U402) CHECK CABLE OF VIDEO/COMPONENT CHECK UPD64011(U904)I/O SIGNAL NO INPUT SIGNAL YES NO OUTPUT SIGNAL CHECK MDIN150(U901) AND SDRAM(U902) I/O SIGNAL YES CHECK GM1501(U402)AND SDRAM(U401) NO INPUT SIGNAL NO OUTPUT SIGNAL NO INPUT SIGNAL CHECK THE PERIPHERAL UPD64011(U904) CHECK THE PERIPHERAL IC OF UPD64011, MDIN150 SDRAM CHECK THE PERIPHERAL IC OF GM1501(U402) - 17 -

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- 17 -
3. NO RASTER ON VIDEO SIGNAL INPUT
NO RASTER ON VIDEO SIGNAL
CHECK CABLE OF
VIDEO/COMPONENT
CHECK THE PERIPHERAL
UPD64011(U904)
CHECK THE PERIPHERAL IC
OF UPD64011, MDIN150 SDRAM
CHECK THE PERIPHERAL IC
OF GM1501(U402)
CHECK UPD64011(U904)I/O SIGNAL
CHECK MDIN150(U901) AND
SDRAM(U902) I/O SIGNAL
CHECK GM1501(U402)AND
SDRAM(U401)
POWER CHECK OF CXA2040(U201) : U204(9V)
POWER CHECK OF UPD64011(U904) : U905(3.3V), U906(1.5V)
POWER CHECK OF MDIN150(U901) : U907(3.3V), U908(2.5V)
POWER CHECK OF GM1501(U402)
NO INPUT SIGNAL
NO OUTPUT SIGNAL
NO INPUT SIGNAL
NO OUTPUT SIGNAL
NO INPUT SIGNAL
YES
YES