Q74A Service Manual
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Color error include OSD menu
Check the panel harness.
Check scaler output signal.
Color error except OSD ment.
Check the signal cable.
Check pins of the signal cable.
Check input/output signal of the signal cable
Key button error
Check the function(key) harness.
Check the function ass’y (mechanical).
Brightness differ between upper and
lower on screen.
Because of viewing angle.
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Summary of Contents for Q74A
Page 1: ...Q74A Service Manual All manuals and user guides at all guides com a l l g u i d e s c o m...
Page 18: ...Q74A Service Manual EXPLODE VIEW Q74A 18 All manuals and user guides at all guides com...
Page 27: ...Q74A Service Manual 27 Q74A Service Manual 27 All manuals and user guides at all guides com...
Page 33: ...Q74A Service Manual Inverter Circuit 33 All manuals and user guides at all guides com...
Page 35: ...Q74A Service Manual AD B D TOP PATTERN Q74A 35 All manuals and user guides at all guides com...
Page 37: ...Q74A Service Manual AD B D MASK TOP Q74A 37 All manuals and user guides at all guides com...
Page 38: ...Q74A Service Manual AD B D MASK BOTTOM Q74A 38 All manuals and user guides at all guides com...
