Sony KLV-26U300A Service Manual page 18

Before White Balance please press remote control "1" to turn on "Alignment On", "2" is Alignment off, and AC off on Alignment will
auto off, Description of service mode (only for WB adjustment, DO NOT USE other menu)
INPUT SOURCE
WHITE BALANCE
COLOR TEMPERTURE
R GAIN
G GAIN
B GAIN
R OFFSET
G OFFSET
B OFFSET
Default is "OFF", when you adjust white balance, change it to "ON"
Color mode change menu (COOL- NEUTRAL- WARM)
White balance adjustment resister, refer to WB adjust procedure
Component 1
17 KLV-26/32/37U300A