Sony GY-8240UWD Maintenance Manual page 269

7. Key Check (DSP CPU)
Function: Used for performing the button check of the front panel.
Operation: Enter "22"".
Press the button to be checked until a click sound is produced. The name of the button pressed will be
displayed on the LCD.
End the check by pressing the [SELECT] and [ESC] buttons simultaneously.When the check completes,
"Finish" will be displayed.
(For details, refer to "5-13-7. List of Self-Diagnosis Results Codes and Countermeasures".)
DSP_DIAG=>22"
<< DSP CPU Key check >>
DSP Key check ***** Finish(Error Code 00000000)
DSP_DIAG=>
8. LCD Check (DSP CPU)
Function: The LCD is displayed as described below.
All LCD dots light. → All LCD dots go off. → "LCD-TEST-PATTERN" is displayed.
Operation: Enter "23"".
"Finish" will be displayed when the check completes.
(For details of an error, refer to "5-13-7. List of Self-Diagnosis Results Codes and Countermeasures".)
DSP_DIAG=>23"
<< DSP CPU LCD check >>
DSP LCD check ***** Finish(Error Code 00000000)
DSP_DIAG=>
GY-8240UWD
GY-8240FC
Key Check (DSP CPU) Execution Screen
LCD Check (DSP CPU) Execution Screen
5-4. DIAG Mode
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