Sony MZ-R900 Service Manual - Page 14

MZ-R900 5. The display changes a shown below each time the [JOG LEVER $L% R] (up) key or [DISPLAY] key on the remote commander is pressed. • Address & Adjusted Value Display Remote commander LCD display 011 C 6 8 S 0 1 address item number adjusted value • Jitter Value & Adjusted Value Display Remote commander LCD display 011 O F F J 0 1 jitter value item number adjusted value • Block Error Value & Adjusted Value Display Remote commander LCD display 011 0 6 3 B 0 1 block error value item number adjusted value • ADIP Error Value & Adjusted Value Display Remote commander LCD display 011 0 5 9 A 0 1 ADIP error value item number adjusted value • Item Title Display Remote commander LCD display 011 L r e f P w 0 1 item title item number adjusted value However in the power mode (item number 700's), only the item is displayed. 6. Quit the manual mode, and press the x key to return to the test mode (display check mode). Overall Adjustment Mode Mode to adjust the servo automatically in all items. Normally, automatic adjustment is executed in this mode at the repair. For further information, refer to "Section 5 Electrical Adjustments" (see page 17). Self-Diagnosis Result Display Mode This set uses the self-diagnostic function system in which if an error occurred during the recording or playing, the mechanism control block and the power supply control block in the microcomputer detect it and record its cause as history in the nonvolatile memory. By checking this history in the test mode, you can analyze a fault and determine its location. Total recording time is recorded as a guideline of how long the optical pickup has been used, and by comparing it with the total recording time at the time when an error occurred in the selfdiagnosis result display mode, you can determine when the error occurred. Clear both self-diagnosis history data and total recording time, if the optical pickup was replaced. • Self-Diagnosis Result Display Mode Setting Method 1. Setting the test mode (see page 12). 2. In the display check mode, press the [JOG LEVER $L% R] (up) key or [DISPLAY] key on the remote commander activates the self-diagnosis result display mode where the LCD display as shown below. Remote commander LCD display 0XX 1 0 0 0 0 history code error display code Total recording time when error occurred 3. Then, each time the > key is pressed, LCD display descends by one as shown below. Also, the LCD display ascends by one when the . key is pressed. 1 0XX 1 * * * * 0XX N * * * * 0XX N 1 * * * * 0XX N 2 * * * * 0XX R _ * * * * 1 XX : Error code * * * * : Total recording time If the [JOG LEVER $L% Q] (up) key or the [DISPLAY] key on remote commander is pressed with this display, the LCD switches to the simple display mode. 4. Quit the self-diagnosis result display mode, and press the x key to return to the test mode (display check mode). 14