7.0 LCD Panel
If missing or discolored dots appear on the LCD panel, carefully read
the following note and determine whether you should replace the LCD
panel.
+--- Important ------------------------------------------------------+
¦ ¦
¦ The LCD panel for the Model CL57 SX contains over 921 000 thin ¦
¦ film transistors (TFTs). A small number of missing or discolored ¦
¦ dots is a characteristic of TFT LCD technology. The LCD panel ¦
¦ should only be replaced if the number of missing or discolored ¦
¦ dots causes viewing problems. ¦
¦ ¦
+--------------------------------------------------------------------+
If the LCD panel displays nothing, follow these steps to isolate the
FRUs.
1. Power-off the system, wait 10 seconds, then power it on again.
2. During the POST, check that the green LED (Light Emitting Diode)
lights through the viewing hole on the I/O panel.
- If the LED does not light, replace the voltage converter.
- If the LED lights and nothing appears on the screen, replace
the LCD panel.
If the above does not correct the problem, replace the regulator and
the LCD panel at the same time.
IBM PS/2 Model CL57 SX HMS
LCD Panel
¦ Copyright IBM Corp. 1992
7.0 - 1