Sony SCD-CE775 Service Manual ▷ View online
SCD-CE775
13
4
base unit (DVBU5A)
1
wire (flat type) (25 core)
(CN003)
(CN003)
2
two floating screws
(PTPWH M2.6)
(PTPWH M2.6)
BU section
Note: When installing the BU
on the chassis, set the
lever (lifter) in free
position, the gear (U/D)
in UP position, and insert
the shaft into the
groove of gear (U/D).
lever (lifter) in free
position, the gear (U/D)
in UP position, and insert
the shaft into the
groove of gear (U/D).
gear (U/D)
b
b
3
two leaf springs (holder)
3-8.
BASE UNIT (DVBU5A)
3-9.
TABLE ASSY
Note: When installing the table assy
on the chassis assy, engage
the gear (loading C) with the groove
by looking into the gear through
a hole in the table assy.
the gear (loading C) with the groove
by looking into the gear through
a hole in the table assy.
qs
table assy
9
two screws
(BTTP M2.6)
(BTTP M2.6)
q;
clamp
e
c
c
e
qa
bracket (guide)
gear
(loading C)
(loading C)
7
two screws
(BTTP M2.6)
(BTTP M2.6)
5
screw
(BTTP M2.6)
(BTTP M2.6)
6
bracket (guide)
2
screw
(BTTP M2.6)
(BTTP M2.6)
1
Slide the tray until the screw
that fixes the bracket (guide)
can be seen through a round
hole in the table assy.
that fixes the bracket (guide)
can be seen through a round
hole in the table assy.
3
8
bracket (guide 2)
4
wire (flat type)
(6 core) (CN15)
(6 core) (CN15)
SCD-CE775
14
3-10. SENSOR BOARD
3-11. LOADING MOTOR BOARD
1
screw
(PTPWH M2.6)
(PTPWH M2.6)
3
belt (rotary)
4
two screws
(BTTP M2.6)
(BTTP M2.6)
4
two screws
(BTTP M2.6)
(BTTP M2.6)
5
SENSOR board
2
tray
3
two screws
(BTTP M2.6)
(BTTP M2.6)
4
LOADING MOTOR board
1
belt (loading)
2
connector
(CN13)
(CN13)
SCD-CE775
15
SECTION 4
ASSEMBLY
Note:
Follow the assembly procedure in the numerical order given.
ADJUSTING PHASE OF SWING GEAR AND GEAR (U/D)
6
screw
(PTPWH M2.6)
(PTPWH M2.6)
5
stopper washer (FR)
4
Push fully the shaft of shaft gear and
align the hole shape of gear (loading B).
align the hole shape of gear (loading B).
3
Let the swing gear through under the
chassis and engage its dowel
with the groove of rotary encoder.
chassis and engage its dowel
with the groove of rotary encoder.
2
Install the rotary encoder so that
its groove comes to the position
shown in the figure.
its groove comes to the position
shown in the figure.
1
Insert the shaft gear up to the
position where its shaft comes
out by 5 mm.
position where its shaft comes
out by 5 mm.
g
g
h
h
f
f
f
7
gear (U/D)
8
screw
(PTPWH M2.6)
(PTPWH M2.6)
q;
screw
(PTPWH M2.6)
(PTPWH M2.6)
circle mark
circle mark
swing gear
gear (RV)
Fig. A
9
gear (RV)
Note: Align swing gear, a circle mark
Note: Align swing gear, a circle mark
on the gear (U/D), and the teeth
of gear (RV) to the position
showing in the Fig. A.
of gear (RV) to the position
showing in the Fig. A.
16
SCD-CE775
SECTION 5
TEST MODE
Test Mode Command List
The contents of test mode are as follows.
Note:
Wrong operation in the test mode causes a trouble, thus requiring extreme care.
LINE command (1X): Use mainly for a manufacturing line.
No.
Name
Description
Remarks
05
DSP MON1
XUGF, XPCK, C2PO outputted from IC509 (CD DSP)
Not used for the servicing
06
DSP MON2
MNT0, MNT1, MNT2, MNT3 outputted from IC509 (CD DSP)
Not used for the servicing
07
DSP MON3
RFCK, XPCK, XROF, GTOP outputted from IC509 (CD DSP)
Electrical measurement,
CD CLV jitter measurement
CD CLV jitter measurement
STANDARD command (1X): Use when the servo is applied by manual operation.
No.
Name
Description
Remarks
12
LD ON/OFF
The laser diode is turned on or off
On or off are switched alternately
13
SPIN ON/OFF
The spindle motor is rotated with the regulated voltage
On or off are switched alternately
14
FSRV ON/OFF
The focus servo is turned on or off
On or off are switched alternately
15
TSRV ON/OFF
The tracking servo is turned on or off
On or off are switched alternately
16
CLV ON/OFF
The spindle SLV servo is turned on or off
On or off are switched alternately
Focus and tracking servos must be already turned on
17
SSRV ON/OFF
The sled servo is turned on or off
On or off are switched alternately
Focus, tracking and spindle servos must be already turned on
18
ALL SRV ON
All servos are turned on
19
ALL SRV OFF
All servos are turned off
Stop command in the test mode
This set automatically executes self-diagnosis and various checks
by entering the test mode.
by entering the test mode.
Note:
This set automatically makes various adjustments according to the
type of disc, thereby not requiring adjustment of the set when parts
were replaced. However, be sure to execute 5-1. IC AND FLUO-
RESCENT DISPLAY TUBE CHECK, 5-2. AUTO CHECK and 5-
8. WAVEFORMS CHECK.
were replaced. However, be sure to execute 5-1. IC AND FLUO-
RESCENT DISPLAY TUBE CHECK, 5-2. AUTO CHECK and 5-
8. WAVEFORMS CHECK.
Disc for Test Mode
Various checks of this set require the following discs.
Model
Type
*
1
Category
Application
MODEL
SATD-S5
SATD-S5
12 cm disc
Adjusted value check,
(J-2501-215-A) SL
Reference disc
Operation check,
SATD-S4
Optical waveform check
(J-2501-184-A)
Not specified
DL
12 cm disc
Operation check
PATD-012
Adjusted value check,
(4-225-203-01)
CD
12 cm disc
Operation check,
YEDS-18
Reference disc
Optical waveform check
(3-702-101-01)
Not specified
HYBRID 12 cm disc
Operation check
*1 SL: Single Layer
DL: Dual Layer
Setting Method of Test Mode
Turn the
[POWER]
switch on while pressing the
[ AMS ]
dial and the
[MENU]
button. Release the
[MENU]
button and the
[ AMS ]
dial in this order when “Test Mode Menu” is
displayed on the fluorescent display tube. (If the
[ AMS ]
dial is released first, the test mode becomes active but “Test Mode
Menu” is not displayed)
Menu” is not displayed)
[ OPEN/CLOSE]
key in the TEST mode.
The
[ OPEN/CLOSE]
key is disabled immediately after the ma-
chine enters the TEST mode. Be sure to turn the
[ AMS ]
dial
to select 59 Table Init and push
[ AMS ]
once. When initial-
ization of the table is completed, the message INITAIL OK appears
several seconds on the FL display. After this, the
several seconds on the FL display. After this, the
[ OPEN/CLOSE]
key is enabled and disc can be inserted and ejected.
When the command 59 Table Init is executed, the same operations
of the POWER ON to the disc chucking in the normal operations
as described below are performed. However, it presumes that the
door and the tray are closed depending on the stop status.
59 Table Init
When the command 59 Table Init is executed, the same operations
of the POWER ON to the disc chucking in the normal operations
as described below are performed. However, it presumes that the
door and the tray are closed depending on the stop status.
59 Table Init
t
BU DOWN (disc unchucking)
t
Table rotates
(disc search)
t
BU UP (disc chucking) at the disc that is found
first of all.
When there are no discs, BU UP is executed at the DISC1 posi-
tion.
When there are no discs, BU UP is executed at the DISC1 posi-
tion.
Releasing Method of Test Mode
To release the test mode, turn the
[POWER]
switch off.
Selection/Entry of Test Mode
To select and enter the “Test Mode Menu”, operate as follows.
1. Rotate the
1. Rotate the
[ AMS ]
dial to select the menu, and press
the
[ AMS ]
dial to enter.
2. The test is switched on or off alternately each time the
[ AMS ]
dial is pressed.
3. To return to the previous step, rotate the
[ AMS ]
dial
to select the desired item, and press the
[ AMS ]
dial
to enter.
l
L
l
L
l
L
l
L
l
L
l
L
l
L
l
L
l
L
l
L
A
A
A
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