Sony MZ-R50 Service Manual - Page 30

[General Adjustment Mode] • Set the test mode, press the + key, and set the general adjust- ment mode. • To set other modes, cut off the power once and power on again. • When the general adjustment mode is set, the LCD display will be as follows. 4000 Assy MODE • Structure of General Adjustment Mode General adjustment mode " key (CD, MO discrimination) CD automatic adjustment p key " key OK p key NG MO automatic adjustment p key " key OK p key NG Reset Adjusting Method : 1. Set the test mode, press the = key to set the general adjust- ment mode. 2. Load the CD test disc (TDYS-1) or SONY MO disc available on the market. 3. When the " key is pressed, the disc is determined if CD or MO, the automatic adjustment modes are set, and adjustments are performed automatically in the following order. • CD Automatic Adjustment No. Mode No. Adjustment 1 052 CD EF balance adjustment 2 053 CD ABCD level adjustment 3 055 CD focus gain adjustment 4 056 CD tracking gain adjustment 5 057 CD focus bias adjustment * Display during CD automatic adjustment 51 CD RUN Mode No. during adjustment • MO Automatic Adjustment No. Mode No. Adjustment 1 032 MO playback EF balance adjustment 2 033 MO playback ABCD level adjustment 3 034 MO recording EF balance adjustment 4 035 MO recording ABCD level adjustment 5 037 MO focus gain adjustment 6 038 MO tracking gain adjustment 7 061 32 cluster full REC 8 062 REC shock 9 063 32 cluster PLAY 10 039 MO focus bias adjustment 11 042 Low reflection CD EF balance adjustment 12 043 Low reflection CD ABCD level adjustment 13 045 Laser low reflection CD read adjustment 14 046 Low reflection CD tracking gain adjustment * Display during MO automatic adjustment 37 MO RUN Mode No. during adjustment 4. If the automatic adjustment results are OK, the following will be displayed. 00 CD mode OK 5. If the automatic adjustment results are NG, the following will be displayed. NG mode No. (Last 2 digits) 55 7F CD mode NG Adjustment results * When the mode number is 039, 057 and the focus bias value is NG, the following will be displayed Mode No. (Last 2 digits) 57 30 Focus bias value CD mode 77 : focus bias NG Displayed while the P key is pressed 77 01 CD mode NG Error code (01 to 04) * When the mode number is 039, 061 and the AT error rate is NG, the following will be displayed. Mode No. (Last 2 digits) 39 03 CD mode NG AT error value * When NG, set the servo mode and perform the automatic adjustment of the NG item. (Refer to "Servo Mode"). - 30 -