AOC L22W831 - 715T2783 1B SMPS circuit diagram – Service mode - WB adjustment

715T2783 - 715T278313 SMPS schematic – used with AOC L22W831 LCD TV

White Balance (W/B) adjustment

Approximately 2 hours should be allowed for warm up before proceeding white balance adjustment.
Before started adjust white balance, please set the Ca210 Channel to 05 Channel and set it’s mode to xyLv mode.

How to setting the Ca210 channel, you can reference to Ca210 user guide or simple use the ― Memory CH‖ up or down to set the channel to 05 channel, and use the ―Mode‖ key to set the mode to xyLv.
Following is the procedure to do white-balance adjust

Factory mode (Service Mode)
ⅠTurn on the TV, press MENU key with remote control, then press number key 1 > 9 > 9 > 9. It will achieve the factory mode.

Select the item of White Balance and press right key to enter it.
ⅡSelect “source” like PC/AV/S-VIDEO/HDMI, then select “color temp” to adjust the corresponding R/G/B values.

In the White Balance you can adjust following items.
1-3 items is RG, GG, BG à R, G, B Gain adjust.
4-6 items is RO, GO, BO à R, G, B Bias adjust.
7 item is Colortemp_all_Mode adjust, color temperature select: Cool, Normal, and Warm.
8 item is Def_brightness_all_mode adjust
9 item is Def_contrast_all_mode adjust

Note
1. Set the input signal format of PC as 1024x768 @60 Hz, AV as NTSC system, YPbPr as 576I, HDMI as 1080I
2. Before adjusting all color temp, make PC and YPbPr auto color first.
3.The model usually needn’t to be adjusted W/B, only to make auto color.

SMPS 715T2783-1B - Schematic

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