Sony MZ-R91 Service Manual page 20

[Temperature Correction]
• Adjustment Method of temperature correction
1. Select the manual mode of test mode, and set the mode num-
ber 014. (See page 12)
LCD display
S e t T m p
014
2. Measure the ambient temperature.
[VOL +] [VOL --]
3. Adjust with ,
(hexadecimal value) becomes the ambient temperature.
(Initial value: 14h = 20 °C, Adjusting range: 80h to 7fh (–128
°C to +127 °C)
4. Press the X key to write the adjusted value.
[Overall Adjustment Mode]
• Adjustment Method of Overall Adjustment Mode
1. Setting the test mode. (See page 11)
[VOL --]
2. Press the or
.
ment mode where the LCD display as shown below.
LCD display
A S S Y * *
000
: (DISC MARK) When power adjustment "H" finished;
Outward ON
When power adjustment "L" finished;
Inward ON
Power supply is not yet adjusted unless both outward
and inward disc marks are ON.
Note: Disc mark is displayed on the remote commander
LCD only.
* * : Left side = MO auto adjustment information
F : Auto adjustment finished
1 : Manual adjustment remains
0 : Not adjusted yet
Right side = CD auto adjustment information
F : CD auto adjustment finished
1 : Manual adjustment remains (not auto adjustment)
0 : Not adjusted yet
3. Insert the CD test disc TDYS-1 (Parts No.4-963-646-01) or
an available SONY CD disc.
4. Press N key. The system discriminates between CD and MO
and performs automatic adjustment for CD.
Also, if . key is pressed, CD is adjusted automatically.
LCD display
C D R U N
%%%
%%%: Manual mode number being executed
key so that the adjusted value
key activates the overall adjust-
• CD Automatic Adjustment item
Mode No.
312
313 CD electrical offset adjustment
314
328 CD TWPP gain adjustment
321 CD tracking error gain adjustment
323
CD tracking error offset adjustment
332
336 CD ABCD level adjustment
344 CD focus gain adjustment
345 CD tracking gain adjustment
521
CD two-axis sensibility adjustment
522
341 CD focus bias adjustment
5. If the result of automatic adjustment is OK, the following dis-
play appears in the LCD:
LCD display
C D O K
341
6. If the result of automatic adjustment is NG, the following dis-
play appears in the LCD:
LCD display
# # # N G
# # # : Overall adjustment. NG mode number
7. If NG, set the manual mode. Perform automatic adjustment
for the items not accepted. (See page 12)
8. If CD adjustment is OK, insert an available SONY MO disc
(recorded).
At this time, be sure to turn OFF the disc protect switch.
9. Press key. The system discriminates between CD and MO
N
and performs automatic adjustment for the MO disc.
Also, if key is pressed, MO is adjusted automatically.
>
However, when CD adjustment is not finished, "SetCD!" is
blinking on the LCD and MO adjustment is not executed.
LCD display
M O R U N
%%%
%%%: Manual mode number being executed
– 20 –
Description