710CDT/720CDT
2-29
Figure 2-3 Display connection
If any of the cables are not connected, reconnect it firmly and repeat Procedures 1 and 2. If the
problem still exists, perform Procedure 4.
Procedure 4
Replacement Check
The FL, FL inverter board, LCD module, and system board are connected to the display
circuits. Any of these components may be damaged. Refer to
Chapter 4
,
Replacement Proce-
dures
, for instructions on how to disassemble the computer and then perform the following
checks:
❑
If the FL does not light, perform Check 1.
❑
If characters are not displayed clearly, perform Check 3.
❑
If some screen functions do not operate properly, perform Check 3.
❑
If the FL remains lit when the display is closed, perform Check 4.
Check 1
Replace the FL with a new one and test the display again. If the problem still
exists, perform Check 2.
Check 2
Replace the FL inverter board with a new one and test the display again. If the
problem still exists, perform Check 3.
Check 3
Replace the LCD module with a new one and test the display again. If the
problem still exists, perform Check 4.
Summary of Contents for Tecra 710CDT
Page 187: ...B 2 710CDT 720CDT B 2 System Board Back View Figure B 2 System board layout back ...
Page 207: ...C 16 710CDT 720CDT ...
Page 221: ...G 2 710CDT 720CDT ...
Page 222: ...710CDT 720CDT G 3 ...