Acer MB243WABNS service manual Failure Point I314 was damaged

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30

ACER G24

5. Troubleshooting (continued)

Go to cover page

5.11HDMI signal check

5.11.1No video

Check the TMDS signal

from computer input onNG HDMI connector

OK

Check the TMDS signal of

Failure Point

1.Check the host PC to see if there’s no TMDS signal output

2.HDMI cabled disconnected. Reconnect the cable till firmly connected

3.P311 is disconnected. Reconnect the cable till firmly connected

Failure Point

I322

NG

OK

I322 was damaged.

Failure Point

I314 was damaged

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Contents Acer Go to cover Scope Sync Signal Loading Video Input Signals Function LED Color Factory Preset Video Timings Digital Inputs Panel Electrical Diameter, they must be at least 15mm apart Main OSD Menu Outline Description for control function OSD Manu Exploded Diagram Packing Exploded Diagram Exploded Diagram Product Exploded Diagram Assembly and Disassembly Procedures S10 S11 S12 S22 Open the carton with a proper tool S10 S15 S18 Go to cover Proceed to 5.3 Checking the backlight unit section Troubleshooting Troubleshooting Abnormal Screen Troubleshooting Abnormal OSM display OSD Adjusment Problem Failure Point Confirm the output of serial Checking the control circuit of vertical sync pulse Troubleshooting Checking the resolution change IC movement Between I301, I303 Troubleshooting Checking the inverter board circuit Failure Point I314 was damaged Firmware Upgrade Process Go to cover Cedid Go to cover PCB No PCB No P01 For Power Saving Control ACERLCDG24SCHEMATICSINTERFACEBDMCU and Function KEY Dsub ACERLCDG24SCHEMATICSINTERFACEBDHDMI and DVI Input 123 ACERLCDG24SCHEMATICSINTERFACEBDSDRAM ACERLCDG24SCHEMATICSINTERFACEBDUSB and CAM/MIC Output Hdmi Audio CODECdeleted for P243W Hdmi model ACERLCDG24SCHEMATICSINVERTER BD Menu KEY Power Board TOP Silk ACERLCDG24LAYOUTSINTERFACE Board ACERLCDG24LAYOUTSFUNCTION KEY Board ACERLCDG24LAYOUTSINVERTER Board
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