Acer RA19WAANU service manual Does OSM display when you push Proceed buttom

Page 20

5. Troubleshooting

5.1 No display on the screen (Screen is black and colour of LED is amber.)

ACER X193HQ

 

19

 

 

 

Go to cover page

Does OSM display when you push

PROCEED buttom.

No

When a signal isn't being inputted, it is indicated with "No Signal Input". it is

indicated with "Out Of Range" at the time Yes of the frequency that it can't be

distinguished.

Check if the sync signal from computer is output and if the video cable is connected normally.

NG

OK

Proceed "checking the resolution change IC

movement" section.

Proceed "No OSM display" section.

Input the sync signal of computer, or change

the cable.

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Contents Service Go to cover SUB Connector Pin Description SUB Description DVI-I/DVI-DIf using DVI-D cable,C1,C2,C3,C4,C5 is NCUser Controls and Indicators Power On / Off Switch OSD adjustmentPower Supply Requirements KHz MHzBacklight Requirements General Requirements Display Communications ChannelPanel Timings Defects Inspection Spec Main OSD Menu Outline Description for control function O l w h it eOSD Manu Exploded Diagram Packing Exploded Diagram Exploded Diagram Product Exploded Diagram Plug in parallel direction Angel 5 degrees S10 S18 USER’S Manual Turn over the LCD monitor screen faced up Separating all of the locking mechanismFront bezel in turn S14 S15 S16 Use properly force to pull up front bezelS20 Does OSM display when you push Proceed buttom Next Circuit section Troubleshooting Checking the back light unit Troubleshooting Abnormal screen for VGA Troubleshooting Abnormal screen For the DVI Troubleshooting Abnormal OSM display adjust problem Abnormal plug and play operation for VGA Troubleshooting Abnormal plug and play operation For the DVI Checking the control circuit of vertical sync pluse Troubleshooting Checking the resolution change IC movement Troubleshooting Checking the DC/DC converter circuit Firmware Upgrade Process Go to cover Cedid Go to cover Interface Board LCD Flat Panel