Improper display cable Reseat the display cable to
connections. the following one at a time
until the problem is solved:
1. Inverter board.
2. System board.
3. Display panel.
-------------------------------------------------------
Defective inverter Replace the inverter board.
board. ****
-------------------------------------------------------
Defective display cable. Replace the display cable.
****
-------------------------------------------------------
Defective display panel. Replace the display panel.
****
===========================================================================
Problem Probable Cause Solution(s)
===========================================================================
The display panel Improper display cable Reseat the display cable to
has a continuous connections. the following until the
pattern across it problem is solved:
(e.g., a
"jailbars" 1. System board
pattern), has a 2. Display board
single color on 3. Inverter board
it, or has
garbled graphics
across the entire
panel. This
failure is for
patterns across
the entire panel
(not just on one
section).
-------------------------------------------------------
Defective display cable. Replace the display cable.
****
-------------------------------------------------------
Defective inverter Replace the inverter board
board. (on color STN models only).
-------------------------------------------------------
Defective system board. Replace the system board.
---------------------------------------------------------------------------
A single line, Defective display panel. Replace the display panel.
small group of ****
lines, or block
appears on the
display panel.
This failure
occurs in only a
section of the
display panel.
******
---------------------------------------------------------------------------
The display Defective display switch Remove keyboard cover. Push
switch does not spring or keyboard the display switch on the
function. cover. power interface board. If
(Section 1.4) display switch functions,
install the following new
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