HCD-MD555 - Sony Audio Service Manual (repair manual). Page 5

— 5 —

The self-diagnosis function is performed using the “error history display mode” in the test mode.  The following procedure describes
only the minimum required operating procedure to enter the error history mode.  Therefore be careful not to enter any other modes by
mistake.  If you have entered any other modes by mistake, press the  MENU/NO  button and exit the mode.

1. Press  ENTER/YES  ,   NAME EDIT   and  MD3  .

(If the [Check] is not displayed, press the  MENU/NO  or  

p  to let [Check] appear.)

2. Turn the   MULTI JOG   to display “[Service]”, and press the   ENTER/YES   button.
3. Turn the  MULTI JOG   to display “ERR DP MODE”  .
4. Press the  ENTER/YES   button to enter the error history mode and the message “total rec” appears.
5. Select the item to be displayed or to be executed using the   MULTI JOG  .
6. When you want to display or execute the selected item, press the   MULTI JOG  .
7. If you press the  MULTI JOG   again, the display returns to step 4.
8. You can exit the error history mode by pressing the   MENU/NO   button. The message “ERR DP MODE” is displayed.
9. You can exit the test mode by pressing the   REPEAT  .  Then the HCD-MD555 enters the standby state, the disc is ejected, and the display

exits the test mode.