Sony SCD-CE775 Service Manual ▷ View online
3
SCD-CE775
This label is located on the LEFT exterior.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
other than those specified herein may result in hazardous ra-
diation exposure.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able. (See Fig. A)
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able. (See Fig. A)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
µ
F
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED
LINE WITH MARK
0
ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
4
SCD-CE775
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.
check that the S curve waveforms is output three times.
CLEANING OF OPTICAL PICK-UP LENS
In cleaning the lens of optical pick-up, use the air blower.
Never use a cotton swab for cleaning the lens of optical pick-up,
which otherwise causes a trouble.
Never use a cotton swab for cleaning the lens of optical pick-up,
which otherwise causes a trouble.
CHECKING SIGNALS OF CD SECTION
Efficiency to check each signal of CD section is increased when
the test points on the MAIN board are used.
Refer to 5-8. WAVEFORMS CHECK (28 page)
the test points on the MAIN board are used.
Refer to 5-8. WAVEFORMS CHECK (28 page)
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
SECTION 1
SERVICING NOTES
table
tapering driver
*
To close the disc table, turn the tapering
driver in the reverse direction (to IN direction).
driver in the reverse direction (to IN direction).
HOW TO OPEN THE DISC TABLE WHEN POWER
SWITCH TURNS OFF
SWITCH TURNS OFF
Insert a tapering driver into the aperture of the unit bottom, and
turn it in the direction of the arrow (to OUT direction).
turn it in the direction of the arrow (to OUT direction).
5
SCD-CE775
RESETTING OPERATION AT POWER ON
If the power is turned on with a disc loaded in the set, a sequence of operation as shown below will be performed.
(The operation varies depending on the type of disc) Condition: continue mode
(The operation varies depending on the type of disc) Condition: continue mode
(1) CD
1.
1.
Sled reverse move (sled in)
2.
Disc detect
3.
IC setting for CD
4.
Servo error signal offset auto adjustment
5.
Spindle kick for LD on
6.
LD on
7.
Focus search
8.
Focus servo on
9.
Spindle kick
10. Spindle servo on
11. E-F balance auto adjustment
12. Tracking & sled servo on
13. Focus bias auto adjustment
14. Focus servo gain auto adjustment
15. Tracking servo gain auto adjustment
16. Jump to lead-in area
17. Read TOC
18. Stop
11. E-F balance auto adjustment
12. Tracking & sled servo on
13. Focus bias auto adjustment
14. Focus servo gain auto adjustment
15. Tracking servo gain auto adjustment
16. Jump to lead-in area
17. Read TOC
18. Stop
(2) SACD (single layer)
1.
1.
Sled reverse move (sled in)
2.
Disc detect
3.
IC setting for SACD
4.
Servo error signal offset auto adjustment
5.
Spindle kick for LD on
6.
LD on
7.
Focus search
8.
Focus servo on
9.
Spindle kick
10. Spindle servo on
11. E-F balance auto adjustment
12. Tracking & sled servo on
13. Focus bias auto adjustment
14. Focus servo gain auto adjustment
15. Tracking servo gain auto adjustment
16. Jump to lead-in area
17. Read TOC
18. Stop
11. E-F balance auto adjustment
12. Tracking & sled servo on
13. Focus bias auto adjustment
14. Focus servo gain auto adjustment
15. Tracking servo gain auto adjustment
16. Jump to lead-in area
17. Read TOC
18. Stop
(3) SACD (dual layer)
1.
1.
Sled reverse move (sled in)
2.
Disc detect
3.
IC setting for SACD
4.
Servo error signal offset auto adjustment
5.
Spindle kick for LD on
6.
LD on
7.
Focus search
8.
Focus servo on (layer 0)
9.
Spindle kick
10. Spindle servo on
11. E-F balance auto adjustment (layer 0)
12. Tracking & sled servo on (layer 0)
13. Focus bias auto adjustment (layer 0)
14. Focus servo gain auto adjustment (layer 0)
15. Tracking servo gain auto adjustment (layer 0)
16. Jump to lead-in area
17. Read TOC
18. Focus jump (layer 0tlayer 1)
19. E-F balance auto adjustment (layer 1)
20. Tracking & sled servo on (layer 1)
21. Focus bias auto adjustment (layer 1)
22. Focus servo gain auto adjustment (layer 1)
23. Tracking servo gain auto adjustment (layer 1)
24. Focus Jump (layer 1tlayer 0)
25. Stop
11. E-F balance auto adjustment (layer 0)
12. Tracking & sled servo on (layer 0)
13. Focus bias auto adjustment (layer 0)
14. Focus servo gain auto adjustment (layer 0)
15. Tracking servo gain auto adjustment (layer 0)
16. Jump to lead-in area
17. Read TOC
18. Focus jump (layer 0tlayer 1)
19. E-F balance auto adjustment (layer 1)
20. Tracking & sled servo on (layer 1)
21. Focus bias auto adjustment (layer 1)
22. Focus servo gain auto adjustment (layer 1)
23. Tracking servo gain auto adjustment (layer 1)
24. Focus Jump (layer 1tlayer 0)
25. Stop
6
SCD-CE775
Rear Panel Parts Descriptions
1
ANALOG 2CH OUT L/R jacks (5)
Connect to an audio component (stereo/2 channel)
using the audio connecting cord.
Connect to an audio component (stereo/2 channel)
using the audio connecting cord.
2
ANALOG 5.1CH OUT jacks (4)
Connect to an amplifier equipped with the 5.1CH
input jacks (Multi-channel amplifier, AV amplifier,
etc.) using the audio connecting cords.
Connect to an amplifier equipped with the 5.1CH
input jacks (Multi-channel amplifier, AV amplifier,
etc.) using the audio connecting cords.
3
DIGITAL (CD) OUT OPTICAL connector (6)
Connect to an audio component using an optical
digital cable.
Connect to an audio component using an optical
digital cable.
4
CONTROL A1 jacks (6, 26)
Connect to a Sony audio component using the
monaural (2P) mini-plug cord.
Connect to a Sony audio component using the
monaural (2P) mini-plug cord.
Note
Only the audio signals of the CD can be output from the
DIGITAL (CD) OUT connectors shown in 3. Those of the Super
Audio CD cannot be output through DIGITAL (CD) OUT.
Only the audio signals of the CD can be output from the
DIGITAL (CD) OUT connectors shown in 3. Those of the Super
Audio CD cannot be output through DIGITAL (CD) OUT.
R
L
5.1CH OUT
ANALOG
CONTROL
A1
ΙΙ
OUT
DIGITAL (CD)
OPTICAL
CENTER
SUB
WOOFER
SURR
FRONT
L
R
2CH OUT
Front Panel Parts Descriptions
1
POWER switch (11)
Press to turn on/off the player.
Press to turn on/off the player.
2
DISC 1–5 button (12)
Press to select the disc.
Press to select the disc.
3
Remote sensor
(4)
4
Display window (12)
Shows various information.
Shows various information.
5
N button (12)
Press to start play.
Press to start play.
6
X button (12)
Press to pause play.
Press to pause play.
7
x button (12)
Press to stop play.
Press to stop play.
8
EX-CHANGE button (15)
Press to replace discs while playing a disc.
Press to replace discs while playing a disc.
9
DISC SKIP button (11)
Press to select the disc.
Press to select the disc.
0
MULTI/2CH button (with an LED) (12)
Press to select the playback area when the 2 channel +
Multi-channel Super Audio CD is loaded. When you
select the Multi-channel playback area (page 11), the
LED turns on.
Press to select the playback area when the 2 channel +
Multi-channel Super Audio CD is loaded. When you
select the Multi-channel playback area (page 11), the
LED turns on.
qa
lAMSL dial (AMS: Automatic Music Sensor)
(6, 12)
When you turn the
(6, 12)
When you turn the
lAMSL dial
counterclockwise by one click, you go back to the
preceding track; when you turn the
preceding track; when you turn the
lAMSL dial
clockwise by one click, you go to the succeeding track.
qs
CONTINUE button (11)
Press to resume normal play from Shuffle Play or
Program Play.
Press to resume normal play from Shuffle Play or
Program Play.
qd
SHUFFLE button (19)
Press to select Shuffle Play.
Press to select Shuffle Play.
qf
PROGRAM button (20)
Press to select Program Play.
Press to select Program Play.
qg
REPEAT button (18)
Press repeatedly to play all tracks or only one track on
the disc.
Press repeatedly to play all tracks or only one track on
the disc.
qh
TIME/TEXT button (13)
Each time you press the button, the playing time of the
track, the total remaining time on the disc, or TEXT
information appears in the display.
Each time you press the button, the playing time of the
track, the total remaining time on the disc, or TEXT
information appears in the display.
qj
Disc tray (11)
Press
Press
A OPEN/CLOSE to open/close the disc tray.
qk
MULTI CHANNEL DECODING indicator
Turns on when you turn on the player, or when the
Multi-channel Super Audio CD is loaded and select
the Multi-channel playback area by pressing MULTI/
2CH.
Turns on when you turn on the player, or when the
Multi-channel Super Audio CD is loaded and select
the Multi-channel playback area by pressing MULTI/
2CH.
ql
m/M buttons (17)
Press to locate a portion you want to play within a
track.
Press to locate a portion you want to play within a
track.
w;
MENU button (6)
Press to enter the menu.
Press to enter the menu.
wa
SACD/CD button (with an LED) (12)
Each time you press the button while the Hybrid disc
(page 10) is loaded, the layer changes between an HD
(SACD) layer (the LED turns on) and CD layer (the
LED turns off).
Each time you press the button while the Hybrid disc
(page 10) is loaded, the layer changes between an HD
(SACD) layer (the LED turns on) and CD layer (the
LED turns off).
ws
PHONES jack
Connect the headphones.
During playback of a Multi-channel Super Audio CD,
the same signal that is output from the ANALOG
5.1CH FRONT L/R jacks is output from the PHONES
jack.
Connect the headphones.
During playback of a Multi-channel Super Audio CD,
the same signal that is output from the ANALOG
5.1CH FRONT L/R jacks is output from the PHONES
jack.
wd
PHONES LEVEL control
Adjust the headphones volume.
Adjust the headphones volume.
wf
A OPEN/CLOSE button (11)
Press to open/close the disc tray.
Press to open/close the disc tray.
SECTION 2
GENERAL
This section is extracted from
instruction manual.
instruction manual.