Akai LCT3785TAJ Service Manual page 85

DC
+12V
SW
(High to low)
(control
signal)
DC
C1
+15V 1uF
[Note 3] The specified power supply current is under condition at Vcc=12V, Ta=25+/-2℃,
f =60Hz, whereas a power dissipation check pattern below is displayed.
v
a. White pattern
[Note 4] LVDS signal definition:
R
T
VID = VIN – VIN-,
+
VID =
△ ｜VID
VID- = ｜VIL
+
VCM+ = ( VIH
VIN+: Positive differential DATA & CLK input
VIN-: Negative differential DATA & CLK input
Q1
2SK1475
R1
47k
R2
1k
VR1
47k
0.01uF
b. Black pattern
VCM = ｜ VCM
△
–VID-｜, VID+ =｜VIH
+
–VIL-｜, VCM = ( VIN
+VIH- ) / 2,VCM- =( VIL
+
83／126
FUSE
Q2
2SK1470
C2
–VCM- ｜ ,
+
–VIH-｜,
+
+VIN- ) / 2,
+
+VIL- ) / 2
+
VCC
LCD Module
C3
Input
1uF
c. RGB Stripe pattern