2-34
710CDT/720CDT
If a connector is disconnected, connect it to the system unit and repeat Procedure 2.
If the DAA board is still not functioning properly, perform Check 2.
Check 2
The DAA board may be defective or damaged. Replace the DAA board with a
new one following the steps outlined in Chapter 4. If the DAA board is still not
functioning properly, perform Check 3.
Check 3
Replace the modem I/F board with a new one following the steps outlined in
Chapter 4. If the DAA board is still not functioning properly, perform Check 4.
Check 4
Replace the system board with a new one following the steps outlined in Chapter 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 ...