LG RT-42LZ30, Руководство по обслуживанию

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4. NO RASTER ON TV SIGNAL INPUT
NO RASTER ON TV SIGNAL
CHECK CONNECTION OF TV
TUNER AND ANTENNA
CHECK THE PERIPHERAL
CXA2040, UPD64011(U904)
SELECT AUTO CH OF OSD
CHECK THE PERIPHERAL IC
OF UPD64011, MDIN150, SDRAM
CHECK THE PERIPHERAL IC
OF GM1501(U402)
CHECK TV CH
CHECK UPD64011(U6) I/O
SIGNAL
CHECK MDIN150(U901) AND
SDRAM(U902) I/O SIGNAL
CHECK GM1501(U402) AND
SDRAM(U401)
POWER CHECK OF TUNER(TU201) : L219(33V), L220(5V)
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