Acer B223W - Bdmr - 22" LCD Monitor, Service Manual

Page: 24 / 55

SPEC NO. MT 220W W 01 V. 0
PAGE 9/23
ALL RIGHTS RESERVED ANY PORTION OF THIS DOCUMENT SHALL NOT BE REPRODUCED, COPIED, OR TRANSFORMED
TO ANY OTHER FORMS WITHOUT PRIOR WRITTEN PERMISSION FROM INNOLUX DISPLAY CORPORATION.
Note 4 : test condition :
(1) V
DD
= 5 V, V
DD
rising time = 470 s ± 10%
(2) Pattern: Mosaic pattern
(3) Test circuit
Note 5 : LVDS signal definition
VIN
+
= Positive differential DATA & CLK Input
VIN- = Negative differential DATA & CLK Input
VID = VIN
+
– VIN- ,
∆
VCM = VCM
+
–VCM- ,
∆
VID = VID
+
–VID- ,
VID+ = VIH
+
–VIH- ,
VID- = VIL
+
–VIL- ,
VCM = (VIN
+
+VIN-)/2,
VCM+ = (VIH
+
+VIH-)/2,
VCM- = (VIL
+
+VIL-)/2,
90
%
Ton=470 s 10%
V
DD
M2
M1
1K
C3
47K
R1 C1
5 V
12V
VDD ( LCD INPUT)
CONTROL SIGNAL
(HIGH to LOW)
2SK1399
2SK1059
R2
C2
10000pF
1uF
R3
47K
FUSE
1uF