Toshiba Satellite X200; Satellite X205 Maintenance Manual page 112

3.16 Speaker EQ Type Check&Re-Write
This test will check if the computer's EEPROM EQ type is correct.
The EQ Type test includes two subtests of the:
1. Check EQ Type from EEPROM
2. Re-Write EQ Type to EEPROM
NOTE: To execute this test, you must select speaker type (Harman or No brand) and
Harman speaker number (2speaker or 3speaker or 5speaker).
The figure below will be displayed, please select write or read speaker EQ:
Satellite X200 / X205
Series Maintenance Manual
3. Tests and Diagnostics
3-27