Acer RB23WABAS service manual Go to cover

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Important Safety Notice

ACER H233H

 

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Product Announcement:

This product is certificated to meet RoHS Directive and Lead-Free produced definition. Using approved critical components only is recommended when the situation to replace defective parts. Vender assumes no liability express or implied, arising out of any unauthorized modification of design or replacing non-RoHS parts. Service providers assume all liability.

Qualified Repairability:

Proper service and repair is important to the safe, reliable operation of all series products. The service providers recommended by vender should being aware of notices listed in this service manual in order to minimize the risk of personal injury when perform service procedures. Furthermore, the possible existed improper repairing method may damage equipment or products. It is recommended that service engineers should have repairing knowledge, experience, as well as appropriate product training per new model before performing the service procedures.

NOTICE:

!To avoid electrical shocks, the products should be connect to an authorized power cord, and turn off the master power switch each time before removing the AC power cord.

!To prevent the product away from water or exploded in extremely high humility environment.

!To ensure the continued reliability of this product, use only original manufacturer’s specified parts.

!To ensure following safety repairing behavior, put the replaced part on the components side of PWBA, not solder side.

!To ensure using a proper screwdriver, follow the torque and force listed in assembly and disassembly procedures to screw and unscrew screws.

!Using Lead-Free solder to well mounted the parts.

!The fusion point of Lead-Free solder requested in the degree of 220°C.

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Contents Service Go to cover Scope Video Signal Amplitudes Content Analog input VGA treats all timings as PC-timings Defects 5.1Visual Inspection Diameter, they must be at least 15mm apart Main OSD Menu OSD Volume management OSD Go to cover Exploded Diagram Packing Exploded Diagram Exploded Diagram Product Exploded Diagram Plug in parallel direction Angel 5 degrees S11 S17 S18 S21 Go to cover Open the carton with a proper tool S10 S17 S21 Does OSM display when you push Menu key Next Circuit section Printed wire broke between P301 pin2, R304 and I308 pin Troubleshooting Abnormal screen for VGA Go to cover Troubleshooting Abnormal OSM display adjust problem Troubleshooting Abnormal plug and play operation for VGA Go to cover Troubleshooting Troubleshooting Checking the resolution change IC movement Troubleshooting Checking the DC/DC converter circuit Firmware Upgrade Process Go to cover Ssmeans Samsung Panel Hdmi Transfer DVI Connection Hdmi Transfer DVI Connection Acer H233H Block digram PCB No P01 TO263 ACERLCDH233HSCHEMATICSINTERFACEBDVGA & DDC Input ACERLCDH233HSCHEMATICSINTERFACEDVI & DDC Interface HDMI19P Acer H233H NC/A-POINT 6PIN ACERLCDH233HSCHEMATICSOSD Keybd Ledorange Ledwhite Power Board TOP Silk ACERLCDH233HLAYOUTSINTERFACE Board 1234567