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LZ-702IR
13
sampled voltage value c data (five times), and calcu-
late the average.
t
Calculate the VG amplitude by subtracting averaged
voltage value a from averaged voltage value c.
y
Change the BRIGHT, GAMMA1 setting etc. on the
value from
t
and adjust to the adaptation value.
Adjustment
yu
SUB-BRIGHT_R/SUB-BRIGHT_B
Example: Sampling the SUB-BRIGHT_R voltage value at
the 8th step, and adjust to the adaptation value.
Positive/negative appraisal at the 8th step is run at 163H,
and sampling is run between 164H and 173H.
q
Starting with the OSD_VSYNC pulse leading edge,
count the OSD_HSYNC pulse until a positive/nega-
tive appraisal at 163H of the 8th step.
w
Check to see if VCOM_IN pulse at 163H is above or
below 1.6V.
e
-1 If VCOM_IN at 163H is below 1.6V, sampling VG volt-
age value d from 165, 167, 169, 171, 173 five times.
-2 If VCOM_IN at 163H is above 1.6V, sampling VG volt-
age value d from 164, 166, 168, 170, 172 five times.
(The timing of sampling is at 38.0
µ
sec
±
15
µ
sec from
Eliminate the maximum and minimum value from the
sampled voltage value d data (five times), and calcu-
late the average. (Average voltage value d)
Calculate SUB-BRIGHT_R adaptation value by add-
ing the average voltage value d and Vsbr.
y
Change SUB-BRIGHT_R setting, and adjust to the
adaptation value.
∗
Change SUB-BRIGHT_R in order to have the VR volt-
age equals to the above average voltage d and Vsbr.
Adjustment
i
VCOM_IN
Sampling the voltage value at the VCOM_IN, and adjust to
the adaptation value.
Positive/negative appraisal at the 2nd step is run at 43H,
and sampling is run between 44H and 53H.
q
Starting with the OSD_VSYNC pulse leading edge,
count the OSD_HSYNC pulse until a positive/nega-
tive appraisal at 43H of the 2nd step.
w
Check to see if VCOM_IN pulse at 43H is above or
below 1.6V.
e
-1 If VCOM_IN at 43H is below 1.6V, sampling VCOM_IN
voltage value e from 44, 46, 48, 50, 52 at 5H five times,
and sampling VCOM_IN voltage value d from 45, 47,
49, 51, 53 at 5H five times.
e
-2 If VCOM_IN at 43H is below 1.6V, sampling VG volt-
age value d from 44, 46, 48, 50, 52 at 5H five times,
and sampling VG voltage value e from 45, 47, 49, 51,
53 at 5H five times.
(The timing of sampling is at 38.0
µ
sec
±
15
µ
sec from
the leading edge of H)
r
Eliminate the maximum and minimum value from the
sampled voltage value d/voltage value e data (five
times), and calculate the average.
t
Calculate the VCOM_IN amplitude by subtracting av-
eraged voltage value d from averaged voltage value
e.
y
Change the value from
t
to the COM_AMPLITUDE
setting and adjust to the adaptation value.
a
GND
38.0
µ
sec
±
15
38.0
µ
sec
±
15
c
Vbri, Vga1
Vga2, Vcon2
VG
OSD HSYNC
GND
38.0
µ
sec
±
15
38.0
µ
sec
±
15
d
Vsbr
VR
VG
OSD HSYNC
d
e
1.6V
GND
38.0
µ
sec
±
15
38.0
µ
sec
±
15
V COM
OSD HSYNC
ADJUSTMENT
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TEL 13942296513 QQ 376315150 892498299