Debugging interface: XS102-WB
(5V, GND, SCL, SDA)
Bus release: Press the Factory key to enter the factory debugging menu, press
“SLEEP” key, the CPU releases the bus control right to the automatic
white balance meter, then the screen displays “TV IC ADJUST”. After the
adjustment is completed, press “SLEEP” key to return to the factory
mode, press the “Factory” key once again to return to normal mode.
Corresponding memory address of 24C08 and 8873-NTSC
Decoding address
Memory address
R cut off
8
（
8
）
30
（
48
）
G cut off
9
（
9
）
31
（
49
）
B cut off
A
（
10
）
32
（
50
）
R Drive
G Drive
B
（
11
）
33
（
51
）
B Drive
C
（
12
）
34
（
52
）
Slave
88
（
136
）
A0
（
160
）
Note: if the value is not available, set as ______, the cancel range is _______.
Note: shortcut keys for factory debugging
After entering the factory mode, functions of some keys of the remote control will change to
meet the production and debugging needs.
1) Press the mute key to turn the debugging page in forward direction and press Back
key to turn the debugging page in backward direction.
2) Press “CH+” and “CH-” on the remote control to select menu options and press
“VOL+” and “VOL-” to change setting values.
3) Press “TV/AV” to display 4 testing signals of the chip:
Black field: See the dark balance.
White field:
See the bright balance.
Cross: Adjust the central value of the line field.
Square: Adjust linearity and line field amplitude. It is desired that edges
of the square are just invisible.
