MDS-JA50ES - Sony Audio Service Manual (repair manual). Page 5

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• In this test mode, the causes for retry of the unit during recording can be displayed on the fluorescent display tube.

This is useful for locating the faulty part of the unit.

• The retry cause, number of retries, and number of retry errors are displayed. Each is displayed in hexadecimal number.

Method:
1. Load a recordable disc whose contents can be erased into the unit.
2. Press the 

p button, §OPEN/CLOSE button, DISPLAY/CHAR button simultaneously.

3. Press the 

r button, and start recording.

4. The ## value increases with each retry. If an error occurs after a retry, the @@ count will also increase.
5. To exit the test mode, press the TIME button.

R.T s 

∗

 

∗

 c # # e @@

∗

 

∗

: Cause of retry

# #

: Number of retries

@@

: Number of retry errors

All three displays above are in hexadecimal numbers.