Sony hcd md 373 service manual

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2 SELF-DIAGNOSIS FUNCTION The self-diagnosis function consists of error codes for customers which are displayed automatically when errors occur, and error codes which show the error history in the test mode during servicing. For details on how to view error codes for the customer, refer to the following box in the instruction manual. For details on how to check error codes during servicing, refer to the following ÒProcedure for using the Self- Diagnosis Function (Error History Display Mode)Ó. Note 1: About ÒRÓ As this unit has only a few buttons, some operations require the use of remote commander (RM-SJ373/provided with unit: 1-418-554-11) buttons. These operations are indicated as ÒRÓ in this manual. Example: MENU/NO ÒRÓ ...Press the MENU/NO button of the remote commander. Note 2: Incorrect operations may be performed if the test mode is not set properly. In this case, press the RESET button of the back panel. Procedure for using the Self-Diagnosis Function (Error History Display Mode). Note:Perform the self-diagnosis function in the Òerror history display modeÓ in the test mode. The following describes the least required procedure. Be careful not to enter other modes by mistake. If you set other modes accidentally, press the MENU/NO ÒRÓ button to exit the mode. 1. When the power ON, press the 1/u button while pressing the p (MD) button and r REC button together. 2. Press the =0/MD/CD/TUNING Ð button or )+/MD/CD/TUNING + button and when Ò[Service]Ó is displayed, press the ENTER/YES ÒRÓ button. (If nothing is displayed, press the FUNCTION button and set the function to ÒMDÓ.) 3. Press the =0/MD/CD/TUNING Ð button or )+/MD/CD/TUNING + button and display ÒERR DP MODEÓ. 4. Pressing the ENTER/YES ÒRÓ button sets the error history mode and displays Òtotal recÓ. 5. Select the contents to be displayed or executed using the =0/MD/CD/TUNING Ð button or )+/MD/CD/TUNING + button. 6. Pressing the SYNC REC button will display or execute the contents selected. 7. Pressing the SYNC REC button another time returns to step 4. 8. Pressing the MENU/NO ÒRÓ button displays ÒERROR DP MODEÓ and exits the error history mode. 9. To exit the test mode, press the REPEAT/STEREO/MONO button. The unit sets into the STANDBY state, and the test mode ends.