Sony MZ-R50 - MD Walkman MiniDisc Recorder 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.
Assy MODE
• Structure of General Adjustment Mode
General
adjustment mode
" key (CD, MO discrimination)
CD automatic
adjustment
p key
MO automatic
adjustment
p key
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 per-
formed automatically in the following order.
• CD Automatic Adjustment
No. Mode No.
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
4000
" key
OK
p key
NG
" key
OK
p key
NG
Reset
Adjustment
Mode No.
during adjustment
• MO Automatic Adjustment
No. Mode No.
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
MO RUN
4. If the automatic adjustment results are OK, the following will
be displayed.
CD mode OK
5. If the automatic adjustment results are NG, the following will
be displayed.
NG mode No. (Last 2 digits)
CD mode
* When the mode number is 039, 057 and the focus bias value is
NG, the following will be displayed
Mode No. (Last 2 digits)
CD mode
77 : focus bias
CD mode
* When the mode number is 039, 061 and the AT error rate is NG,
the following will be displayed.
Mode No. (Last 2 digits)
CD mode
* When NG, set the servo mode and perform the automatic adjust-
ment of the NG item. (Refer to "Servo Mode").
– 30 –
Adjustment
37 Mode No.
during adjustment
00
55 7F
Adjustment results
NG
57 30
Focus bias value
NG
Displayed while the P key is
pressed
77 01
Error code
(01 to 04)
NG
39 03
AT error value
NG