Sony MZ-R900 Service Manual - Page 21

MZ-R900 • Adjustment Method of Overall CD and MO Adjustment Mode 1. Setting the test mode (see page 12). 2. Press the . or [VOL --] key activates the overall adjust- ment mode. Remote commander LCD display 000 Assy11 3. Insert CD disc in the set, and press the . key to set the Overall CD Adjustment mode. Automatic adjustments are made. Remote commander LCD display XXX CD RUN XXX: Item number for which an adjustment is being executed. 4. In case of CD overall adjustment NG, reset the NV (see page 17), then readjust from the temperature correction (see page 19). Remote commander LCD display 000 *** NG ***: NG item number. 5. If OK through the overall CD adjustments, then perform overall MO adjustments. Remote commander LCD display 000 CD OK 6. Insert MO disc in the set, and press the > key to set the Overall MO Adjustment mode. Automatic adjustments are made. Remote commander LCD display XXX MO RUN XXX: Item number for which an adjustment is being executed. 7. In case of MO overall adjustment NG, reset the NV (see page 17), then readjust from the temperature correction (see page 19). Remote commander LCD display 000 *** NG ***: NG item number. 8. If OK through the overall MO adjustments, press the x key to return to the test mode and terminate the Overall Adjustment mode. Remote commander LCD display 000 MO OK • Overall CD and MO adjustment items 1. Overall CD adjustment items Item No. Description 312 313 CD electrical offset adjustment 314 321 CD tracking error gain adjustment 328 CD TWPP gain adjustment 324 CD tracking error offset adjustment 332 336 CD ABCD gain adjustment 344 CD focus gain adjustment 345 CD tracking gain adjustment 521 CD two-axis sensitivity adjustment 522 2. Overall MO adjustment items Item No. Description 112 113 MO electrical offset adjustment 114 118 221 Low reflective CD tracking error gain adjustment 224 Low reflective CD tracking error offset adjustment 232 236 Low reflective CD ABCD level adjustment 244 Low reflective CD focus gain adjustment 245 Low reflective CD tracking gain adjustment 121 MO tracking error gain adjustment 122 MO TON offset adjustment 134 MO TWPP gain adjustment 131 MO double speed read TWPP offset adjustment 132 136 MO ABCD gain adjustment 144 MO focus gain adjustment 145 MO tracking gain adjustment 138 MO RF gain adjustment 434 MO write TWPP gain adjustment 431 MO write TWPP offset adjustment 432 MO tracking error offset adjustment 436 MO write ABCD gain adjustment 445 MO write tracking gain adjustment 411 MO normal speed read TWPP offset adjustment 412 MO tracking error offset adjustment 448 20 sec full recording 21