Read Sony CDP-XB930 / CDP-XB930E Service Manual online
10
Focus bias 8-step up (hexadecimal)
Middle of focus bias up/down turning point
Focus bias optimum point, jitter value
Tracking servo, sled servo off
Tracking gain up
Focus bias 8-step down (hexadecimal)
Immediate readjustment of focus bias
Focus bias 00 point
Tracking servo, sled servo on
Tracking gain down
1
2
3
4
5
6
7
8
9
10
4-2. ADJ MODE
The following operations are performed in the ADJ mode, which is
set by connecting the TP21 (ADJ) terminal to the Ground and turning
on the power.
set by connecting the TP21 (ADJ) terminal to the Ground and turning
on the power.
• During playback, there is no problem even if the GFS is continu-
ously LOW.
• High speed search is prohibited during access.
• During playback, the gain of focus servo and spindle servo does
• During playback, the gain of focus servo and spindle servo does
not decrease.
• Servo related manual operations and measurement can be per-
formed.
(For details of operations, refer to Table of Key Operations in
ADJ Mode.)
(For details of operations, refer to Table of Key Operations in
ADJ Mode.)
4-3. CLV-S MODE
The spindle servo for playback sets into the CLV-S mode when the
TP21 (ADJ) terminal is connected to Ground after turning on the
power.
TP21 (ADJ) terminal is connected to Ground after turning on the
power.
TABLE OF BUTTON OPERATIONS IN ADJ MODE
The jitter value display mode can be set after the all-music remaining
number mode using the TIME/TEXT button.
number mode using the TIME/TEXT button.
The functions of the number buttons are shown in the following
table.
table.
FUNCTIONS OF NUMBER BUTTONS
(With the attached remote commander)
(With the attached remote commander)
Function
Button
R350
CN305
CN304
TP21
(ADJ)
(ADJ)
TP51
(AF ADJ)
(AF ADJ)
[MAIN BOARD] — (Component Side) —
4-4. AGING MODE
This unit is equipped with an aging mode to check operations of the
mechanism deck.
• When faults occur:
Aging stops, and the state when aging stopped is displayed on the
fluorescent display tube.
mechanism deck.
• When faults occur:
Aging stops, and the state when aging stopped is displayed on the
fluorescent display tube.
• When no fault has occurred:
Aging is continued repeatedly.
Aging is continued repeatedly.
Aging method 1
(When using the aging mode remote controller (J-2501-123-A)):
1. Press the U button and turn ON the power.
2. Set the disc on the tray.
3. Press the AGING START button of the aging remote
(When using the aging mode remote controller (J-2501-123-A)):
1. Press the U button and turn ON the power.
2. Set the disc on the tray.
3. Press the AGING START button of the aging remote
controller.
4. Aging starts and the message shown in Fig. 1 is displayed on
the fluoresent display tube.
5. To end, press the U button.
Aging method 2 (When no aging mode remote controller):
1. Press the U button and turn ON the power.
2. Set the disc on the tray.
3. Press the
1. Press the U button and turn ON the power.
2. Set the disc on the tray.
3. Press the
§ OPEN/CLOSE button, p button, and
MUSIC SCAN button at the same time. (If these buttons are
not pressed at the same time, nothing performs.)
not pressed at the same time, nothing performs.)
4. Aging starts and the message shown in Fig. 1 is displayed on
the fluoresent display tube.
5. To end, press the U button.
Display when
normal
State
0
1
2
3
4
5
6
Load in
Access to TOC
Access to last track
Playback of last track
(3 seconds)
Access to first track
Playback of first track
(3 seconds)
Load out
Code
No.
Display when
abnormal
AGING-0
AGING-1
AGING-2
Counter
display
AGING-4
Counter
display
AGING-6
ERROR-0
ERROR-1
ERROR-2
ERROR-3
ERROR-4
ERROR-5
ERROR-6
Fig.1 Message in Aging Mode
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