Hitachi CMP402HDU Owners Guide - Page 30
TROUBLESHOOTING, continued - plasma
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ENGLISH TROUBLESHOOTING (continued) Symptom Flicker causes stripes to move up and down (during personal computer signal input). The temperature of the display panel surface is high. There are locations on the screen that are different from the periphery (*). *Points that do not light, points with brightness different from that of the periphery, points with color different from that of the periphery, etc. Vertical stripes appear, depending on the screen contents. Coarse horizontal stripes appear in FULL display.( durning personal computer signal input) Point to check See page When the vertical frequency of the personal computer is lower than 75Hz, try increasing the frequency (upper limit: 75Hz). This may improve the situation in some cases. The plasma display panel is lighting the phosphors by the discharge of internal radiation. In some cases, this may cause the temperature of the panel surface to increase. Please note that this is not a malfunction. High-precision technology is used to manufacturing the plasma display panel but, in some cases, there are minor defects in some parts of the screen. Please note that this is not a malfunction. The plasma display panel is lighting the phosphors by the discharge of internal radiation. Depending on the screen contents, in rare cases this may cause vertical stripes to appear because of failure to light. Please note that this is not a malfunction. A visual illusion may cause it. Adjusting the phase will reduce the horizontal stripes. 22