DOWNLOAD Sony SCD-CE775 Service Manual ↓ Size: 6.46 MB | Pages: 97 in PDF or view online for FREE

Model
SCD-CE775
Pages
97
Size
6.46 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
scd-ce775.pdf
Date

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-
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.
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.
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
WT-540A. Follow the manufacturers’ instructions to use these
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)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
0.15 
µ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
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.
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.
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.
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.
LASER  DIODE  AND  FOCUS  SEARCH  OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and
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.
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)
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
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).
HOW  TO  OPEN  THE  DISC  TABLE  WHEN  POWER
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).
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
(1) CD
 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
(2) SACD (single layer)
 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
(3) SACD (dual layer)
 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
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.
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.
3
DIGITAL (CD) OUT OPTICAL connector (6)
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.
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.
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.
2
DISC 1–5 button (12)
Press to select the disc.
3
Remote sensor 
 (4)
4
Display window (12)
Shows various information.
5
N button (12)
Press to start play.
6
X button (12)
Press to pause play.
7
x button (12)
Press to stop play.
8
EX-CHANGE button (15)
Press to replace discs while playing a disc.
9
DISC SKIP button (11)
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.
qa
lAMSL dial (AMS: Automatic Music Sensor)
(6, 12)
When you turn the 
lAMSL dial
counterclockwise by one click, you go back to 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.
qd
SHUFFLE button (19)
Press to select Shuffle Play.
qf
PROGRAM button (20)
Press to select Program Play.
qg
REPEAT button (18)
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.
qj
Disc tray (11)
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.
ql
m/M buttons (17)
Press to locate a portion you want to play within a
track.
w;
MENU button (6)
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).
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.
wd
PHONES LEVEL control
Adjust the headphones volume.
wf
A OPEN/CLOSE button (11)
Press to open/close the disc tray.
SECTION  2
GENERAL
This section is extracted from
instruction manual.
Page of 97
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Sony SCD-CE775 Service Manual ▷ Download

  • DOWNLOAD Sony SCD-CE775 Service Manual ↓ Size: 6.46 MB | Pages: 97 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony SCD-CE775 in PDF for free, which will help you to disassemble, recover, fix and repair Sony SCD-CE775 Audio. Information contained in Sony SCD-CE775 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.