Acer wistron rb23wabas Manual De Usuario
Check the DVI video signal from computer input
on P303 of DVI connector.
OK
NG
Failure Point
1) No DVI video signals output from host
computer, check computer.
2) DVI Video signal cable disconnection.
computer, check computer.
2) DVI Video signal cable disconnection.
Check the DVI input video signals on I307 pin
4,5,7,8,10,11,13,14 respectively that differential
input voltage is 150 to 1200mV, and input
commond mode voltage is 3.3V.
Failure Point
In the case of the DVI_RX0+/- signal. (A
DVI_RX1+/-, DVI_RX2+/- and DVI_RXC+/-
signal is the same path, too.)
1)Printed wire broke between P303 pin 17, 18 and
I307 pin 11. 10.
2) Video cable is failure.
3) R386, R387 open.
DVI_RX1+/-, DVI_RX2+/- and DVI_RXC+/-
signal is the same path, too.)
1)Printed wire broke between P303 pin 17, 18 and
I307 pin 11. 10.
2) Video cable is failure.
3) R386, R387 open.
NG
OK
Check all LVDS signals being output to P304
from I307?
Failure Point
Printed wire broke between I307 and P304.
NG
OK
Proceed "Checking the resolution change IC
movement" section.
5.5 Abnormal screen for DVI (This page for 1A1D used)
32
5. Troubleshooting (continued)
ACER V233H