XOCECO LC15H3S, Service Manual

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Fig. 1
Figure 1. Flow process of adjustment and calibration
Input VGA signal and check if display is normal in the state
of PC and various functions (analog quantity control,
line/field center etc.)
Check accessories and then packing
Check if N4, N20, N303, N302 has been
FLASH written.
Produce main board, TV board on line
Check main board
Check TV board
Combined test for general assembly
Connect to central signal source, check if various TV functions
(station skipping, modulate quantity control etc), check if the output
of earphone and speaker are normal
Input SCART/AV/S signal, check different
functions of SCART/AV/S terminals
Adjust TV board
Input TV/AV/ S terminal/SCART/VGA signals, select
separately SCART OUTPUT state to be TV or
MONITOR, check if the function of SCART OUTPUT
is normal