XOCECO LC-52R36, Service Manual

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4. Performance check
4.1 TV function
Input center source signal to RF-TV terminal, enter search menu
→ auto search, check if the channel
is leak for auto searching.
4.2 AV/S and YPbPr terminal
Input AV/S and HDTV signal, check if the signal is normal.
4.3 VGA terminal
Input 640 x 480 @60Hz VGA format signal, check if the signal is normal.
4.4 HDMI terminal
Separate input HDMI and DVI signal; check the picture and sound is normal, check if the HDCP
function is normal.
4.5 check the sound channel
Check the speaker and headphone of each channel.
4.6 check the clock
Enter user’s clock setting menu, set the clock and calendar and power off, then power on and check
if the clock and calendar settings are stored.
4.7 light sensor function
Enter user’s picture menu, set “light sensor” to On and check if the brightness of picture changes
according to the ambient room light conditions
4.6 ex-factory setting
Enter the first page of factory menu, select the factory out after, press the VOL+ button to display
“doing”, then “doing” disappear while it can auto ex-factory setting.