Service manual

Page 11
AL1702
1. No display of screen (Screen is black, color of LED is amber)
Does OSM display when you push
PROCEED buttom.
Yes
No Proceed "No OSM display" section.
Check if the sync signal from computer is
output and if the video cable is connected
normally.
OK
Proceed "checking the resolution change
IC movement" section.
NG
Input the sync signal of computer, or
change the cable.
When a sugnal isn't being inputed, it is
indicated with "VIDEO INPUT". it is
indicated with "OUT OIF RANGE" at the
time of the frequency that it can't be
distinguished.