Sony SCD-XB940, Service Manual

Page: 54 / 73

4
(1) 0. All (Adjust)
From the “Auto Adj Menu”, rotate
[ AMS ]
controller
clockwise to select “0. All (Adjust)”. Press
[ AMS ]
con-
troller, and then the servo setting data in the EEPROM will be
cleared and initialized. After that, set the disc following the mes-
sage and press
[ AMS ]
controller, so that the adjustments
1. – 3. are executed in order.
1
In setting a disc, the disc type and size necessary for adjust-
ment are displayed such as “Set SACD-SL 12”, and accord-
ingly set the specified disc.
2
Each time the adjustment for one disc finished, the disc is
ejected. Replace it with the disc specified by the message.
3
In performing auto adjustment that requires the Loop Filter
Offset value to be adjusted, from the “Auto Adj Menu”, rotate
[ AMS ]
controller clockwise to select “5. All-Adj
LFO”. Set default value to the servo setting in the EEPROM,
and then perform the Loop Filter Offset adjustment.
For details of the adjustment, see (6) 5. All-Adj LFO.
(2) 1. SACD-SL (Single Layer Disc) Adjustment
From the “Auto Adj Menu”, rotate
[ AMS ]
controller to
select “1. SACD-SL”, and press
[ AMS ]
controller.
Following the message “Set SACD-SL 12”, insert the disc and
press
[ AMS ]
controller. Then, the adjustment will be exe-
cuted in the adjustment values will be written to the EEPROM.
Upon completion, “Remove Disc” message is displayed and the
CD is ejected.
(3) 2. CD (CD Disc) Adjustment
From the “Auto Adj Menu”, rotate
[ AMS ]
controller to
select “2. CD”, and press
[ AMS ]
controller. Following
the message “Set CD 12”, insert the disc and press
[ AMS ]
controller. Then, the adjustment will be executed in theadjustment
values will be written to the EEPROM.
Upon completion, “Remove Disc” message is displayed and the
CD is ejected.
(4) 3. SACD-DL (Dual Layer Disc) Adjustment
From the “Auto Adj Menu”, rotate
[ AMS ]
controller to
select “3. SACD-DL”, and press
[ AMS ]
controller. Fol-
lowing the message “Set SACD-DL 12”, insert the disc and press
[ AMS ]
controller. Then, the adjustment will be executed
in the following steps and the adjustment values will be written to
the EEPROM.
Upon completion, “Remove Disc” message is displayed and the
CD is ejected.
(5) 4. HYBRID (Hybrid Disc CD Layer) Adjustment
From the “Auto Adj Menu”, rotate
[ AMS ]
controller to
select “4. HYBRID”, and press
[ AMS ]
controller. Fol-
lowing the message “Set HYBRID 12”, insert the disc and press
[ AMS ]
controller. Then, the adjustment will be executed
in the following steps and the adjustment values will be written to
the EEPROM.
However, if a hybrid disc (12 cm) is not available, skip this adjust-
ment. In this case, press the
x button to quit the adjustment.
Upon completion, “Remove Disc” message is displayed and the
CD is ejected.
(6) 5. All-Adj LFO
From the “Auto Adj Menu”, rotate
[ AMS ]
controller
clockwise to select “5. All-Adj LFO”.
Press
[ AMS ]
controller, and then “Press Enter” will be
displayed, and press it once more, and then “EepDfltSet”
→
“L.F.
OFFSET=09” will be displayed. From the “L.F. OFFSET=09”
display, rotate
[ AMS ]
controller, and then the L.F.OFFSET
value can be increased or decreased as shown below.
l L
l L
l L
l L
l L
l L
l L
l L
“L.F. OFFSET = 09”
Offset value
(00
←
01
←
02
←
03
←
04
←
05
←
06
←
07
←
08
←
09
→
0A
→
0B
→
0C
→
0D
→
0E
→
0F
→
10
→
11
→
12
→
13
→
14
→
15
→
16
→
17
→
18
→
19
→
1A
→
1B
→
1C
→
1D ....
→
F8
→
F9
→
FA
→
FB
→
FC
→
FD
→
FE
→
FF)
Select L.F. OFFSET value and press
[ AMS ]
controller,
and then the CD, SACD-SL and SACD-DL will be adjusted with
the L.F. OFFSET value specified here.
The subsequent operation is similar to that in (1) 0. All (Adjust).
(7) 6. Memory Check
The Memory Check displays the contents of servo setting stored
in the EEPROM.
From the “Auto Adj Menu”, rotate
[ AMS ]
controller
clockwise to select “6. Memory Check”. “EEPROM Data” will be
displayed if
[ AMS ]
controller is pressed, or “CD”
→
“HYBR”
→
“SL”
→
“DL-L0”
→
“DL-L1” will be displayed if
[ AMS ]
controller is rotated clockwise.
At each mode display, press
[ AMS ]
controller and rotate
[ AMS ]
controller, and then the following will
be displayed. (oo: HEX)
1 Contents of CD servo setting
CD
FG = oo TG = oo
CD F0 = oo T0 = oo
CD L0 = oo EB = oo
CD JT = oo MT = oo
2
Contents of HYBR servo setting
H1
FG = oo TG = oo
H1 F0 = oo T0 = oo
H1 L0 = oo EB = oo
H1 JT = oo
3
Contents of SL servo setting
SL
FG = oo TG = oo
SL F0 = oo T0 = oo
SL L0 = oo EB = oo
SL JT = oo MT = oo
4 Contents of DL-L0 servo setting
D0
FG = oo TG = oo
D0 F0 = oo T0 = oo
D0 L0 = oo EB = oo
D0 JT = oo MT = oo
5
Contents of DL-L1 servo setting
D1
FG = oo TG = oo
D1 F0 = oo T0 = oo
D1 L0 = oo EB = oo
D1 JT = oo
• How to See Error Code
If a fatal error occurred during adjustment and the adjustment could
not continue, the adjustment is interrupted and the error is dis-
played.
[Example]
Error 15 11 35
DSP error code
Mechanism error
Service command
This case shows “Focus ON command, DSP error, Sequence in-
terrupted during Focus ON operation”.
l L
l L
l L
l L
l L
l L
l L
l L
l L
l L
l L
l L
l L
l L
l L
l L
l L