Service Manuals, User Guides, Schematic Diagrams or docs for : Hitachi Monitor Hitachi_CMP5000WXE_No_Start_Dig_Noise_repair_tips

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Hitachi_CMP5000WXE_No_Start_Dig_Noise_repair_tips


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Model:     CMP5000WXE - 50" PLASMA DISPLAY
Condition: 1                        Constantly
Symptom: 31x                        Other 'no picture' problem
           Digital Noise only on Screen or Monitor will not start




Tip:




           1. Disconnect the 2 connectors from the Y drive PCB to the scan IC PCB's
           (Y3 and Y5). DO NOT POWER UP THE DISPLAY as this would cause even more
           damage


           2. With a meter, measure the impedance between VH and GNDH on the connector
           on the scan IC PCB's (there are 2, for the upper and lower half of the display). The
           half with the faulty scan IC should indicate low impedance.

           3. To find the actual IC, check the impedance between GNDH and each address
           line on each scan IC. On a faulty scan IC, this will be low impedance.




           Replace the faulty scan IC's as necessary
IRIS
Part:      TC03151                  IC SN755860PJ
Section:   IMG                      Image display unit
Defect:    Q                        Short
Repair:    A                        Replacement



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