Sanyo LCD-47XR2 Service Manual

Contents

272. Identification criteria for the bright spot and dark spot of the LCD screenQuantity allowed Distance between two spotsCategory Criteria 15" 20" 22" 30" 40" 15" 20" 22" 30" 40"One singlespot ≤5 ≤2 ≤5 ≤2 ≤3Twoneighboringspots≤2 ≤1 ≤2 ≤1 ≤1BrightspotTotal No. ≤5 ≤2 ≤5 ≤2 ≤3≥15mmOne singlespot ≤6 ≤7 ≤5 ≤4 ≤10Twoneighboringspots≤2 ≤2 ≤2 ≤1 ≤5DarkspotsTotal No. ≤6 ≤7 ≤5 ≤4 ≤10≥15mm≥10mm ≥5mmTotal defected point ≤8 ≤7 ≤5 ≤4 /Notes:1. Definition of defected point (bright spot, dark spot): It is identified as a defected point if its areaexceeds 1/2 of a single picture element (R, G, B).2. Definition of bright spot: It is identified as a bright spot if it is bright in the state of dark field and itsbright size remains unchanged3. Definition of dark spot: It is identified as a dark spot if it is dark in the state of white field and itsdark size remains unchanged4. Definition of two neighboring points: Defects of a group of picture elements (RB, RG, GB).

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