NEC MultiSync LCD1550V Service Manual

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NEC MultiSync LCD1550V Service Manual Manual pdf 55 page image

6-1TROUBLE SHOOTINGTABLE OF CONTENTSPage1. No display of screen (Screen is black, color of LED is amber) ------------------------- 6-22. Nothing displays on screen (Screen is black, color of LED is green) ----------------- 6-33. Checking the back light unit --------------------------------------------------------------------- 6-64. Abnormal screen ---------------------------------------------------------------------------------- 6-75. No OSM display ----------------------------------------------------------------------------------- 6-96. Abnormal Auto adjustment ---------------------------------------------------------------------- 6-107. Abnormal plug and play operation ------------------------------------------------------------ 6-117.1 Abnormal DDC2 ---------------------------------------------------------------------------------- 6-118. Checking the interface circuit of sync signal ------------------------------------------------ 6-128.1 Checking the control circuit of horizontal sync pulse ------------------------------------ 6-128.2 Checking the control circuit of vertical sync pulse --------------------------------------- 6-139. Checking the resolution change IC movement --------------------------------------------- 6-1410. No power on -------------------------------------------------------------------------------------- 6-1511. Checking the operation of CPU --------------------------------------------------------------- 6-16