420 Series 2-13
Procedure 5 Replacement Check
The system board or the sound board may be damaged. Disassemble the 420 series following
the steps described in Chapter 4, Replacement Procedures, and perform the following checks:
Check 1 Replace the system board with a new one. Refer to Chapter 4 for instructions on
how to remove and replace the system board.
Check 2 Replace the sound board with a new one. Refer to Chapter 4 for instructions on
how to remove and replace the sound board.
To Next Page
Loading...
