XOCECO LC23K6, Service Manual

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3
Alignment instruction
1 Alignment equipment
PM5518 (video signal generator)
K-7253 (VGA signal generator)
CA210 (white balancer)
2 Alignment flow-chart
The alignment flow-chart is shown as fig-1
Fig-1 adjustment flow-chart
3 Unit adjustment
Connect CPU board and analog board according to wiring diagram of 203-L23K70-01JL, connect
with power and observe the display.
Method for entering factory menu: press “VOL+”, “MUTE” and “VIDEO” repeatedly to enter factory
menu; press “ENTER” to select different items when the first line of each adjustment item just lights
up; input VGA and DVI signal, then select the “mode” item; after that, you can press “enter” to select
three kinds of color temperature namely 6500K, 9300K and 12000K press “MENU” to exit.
Note:
the white balance adjustment should be done under “nature” picture mode.
Check DDC, HDCP KEY and FLASH
To produce CPU board and analog board
Check the CPU board and analog board
All testing
Connect with central signal source, then check each function of TV such as
analog control etc., check the output of headphone and speaker
Input AV/S and HD signal, then check each function of all the terminals
Input VGA signal (one format), check if the display is normal under PC
condition, check each function such as analog control etc., check horizontal
/vertical center etc.
Preset ex-factory
Check the accessories and pack them in box