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NAS-S55HDE NAS-SC55PKE SS-S55HDE
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106
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10 MB
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PDF
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Service Manual
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Device
Audio
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nas-s55hde-nas-sc55pke-ss-s55hde.pdf
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Sony NAS-S55HDE / NAS-SC55PKE / SS-S55HDE Service Manual ▷ View online

NAS-S55HDE/SS-S55HDE
5
Notes on CDs
v
 Do not scratch or attach stickers to the surface of the disc.
v
 CDs with non-standard shapes (e.g., a star, heart, or square)
cannot be played on this unit. Attempting to do so may damage
the unit.
v
 When cleaning the disc, use a cleaning cloth and wipe the disc
from the center out to the edge. If the disc is extremely dirty,
wipe the disc with a slightly moistened cloth, followed by a dry
cloth. Do not clean a disc with a benzine thinner, commercial
cleaners or anti-static sprays intended for vinyl LPs.
v
 Do not place discs in hot places, including places exposed to
direct sunlight, near heat sources such as hot air ducts, or inside
parked cars.
v
 Do not use a rental or second-hand disc on which glue that
spread from under the label attached to it. If you do, there is a 
chance that the disc may become stuck to parts within the unit,
causing it to malfunction.
v
 Do not use a commercial cleaning disc as it may cause the unit
to malfunction.
Music discs encoded with copyright protection technologies
playback discs that conform to the Compact Disc (CD) standard.
Recently, various music discs encoded with copyright protection
technologies are marketed by some record companies. Please be
aware that among those discs, there are some that do not conform
to the  CD  standard and may not be playable by this product.
Note on DualDiscs
A DualDisc is a two sided disc product which mates DVD
recorded material on one side with digital audio material on the
other side. However, since the audio material side does not conform 
to the Compact Disc (CD) standard, playback on this product is
not guaranteed.
Notes on playing MP3 discs
v
 
or 48 kHz and a bit rate of 32 to 320 kbps. If you play a 
playback may stop, loud noises or sound skipping may occur, or
the speakers may be damaged.
v
 
malfunction may occur.
v
 
recorded in the MP3 Pro format.
v
 Under the following conditions, the actual elapsed time or the
remaining time of an MP3 
displayed.
— When playing a VBR
— When performing a fast forward or fast rewind operation
About CDs
The unit CAN play the following discs
v
 CDs:
Music CDs, CD-Rs, CD-RWs and CD TEXT
v
 
CD-ROMs, CD-Rs and CD-RWs (recorded in a format
conforming to the ISO 9660 Level 1 or 2, or Joliet standards).
Multisession CDs are supported.
Notes
v
 If the disc begins with a CD-DA (or “ATRAC”/MP3) session, it
is recognized as a CD-DA (or “ATRAC”/MP3) disc, and other
sessions are not played back.
v
 A disc with a mixed CD format is recognized as a CD-DA
(audio) disc.
v
 Some CD-Rs or CD-RWs may not be played on this unit,
depending on its characteristics and the recording conditions.
v
 CD-RWs may require some time
is because they have a lower
of discs.
v
 In the case of discs containing more than 500 tracks of audio
data, the unit will not recognize track 501 or above.
v
 Discs with many directories or a complicated structure may
require some time before they start playing. When recording
albums to a disc, it is recommended that recording will be done
no deeper than the sub-directory 2 level.
Tip
For details on writing data to a disc, refer to the operating manual
supplied with the CD-R/RW drive
playback discs that conform to
format, a sampling rate of 32, 44.1, 
sampling rate or bit rate on this unit,
NAS-S55HDE/SS-S55HDE
6
HOW  TO  DRAW  OUT  FORCIBLY  THE  DISC  TRAY
In the event that the disc tray does not come out due to any fail-
ure, three methods are available to draw it out forcibly. Use either 
method described below according to the symptom.
METHOD  1
If the power did not turn on or if the power is OFF:
1.  With the power cord unplugged, remove the panel (side L) / 
(side R) assembly, panel (top), and panel (front). (See “How to 
Remove 2-2, 2-3 (page 8), 2-6 (page 10)”)
2.  As shown in the fi gure, insert a thin rod into the hole at the 
lower part of CD block, and push it in the arrow A direction.
"
Note:
 This illustration shows the 
 
 
disc tray as viewed from 
  the 
bottom.
CD cection
thin rod
hole
cushion (CD)
Insert a thin rod into the 
hole and push it in the 
arrow 
" direction.
(Disc tray will come out)
disc tray
Peel the cushion (CD) a 
little when it hides the hole.
METHOD  2
If the CD-ROM drive is turned on but the mother board does not 
start:
1.  Insert a thin fl at-tip screwdriver into a round hole at the bottom 
of the set.
2.  Through a hole at the bottom of CD-ROM drive, short the 
points (patterns) on the board of CD-ROM drive.
disc tray
pattern
Short across patterns with a flap-tip screwdriver.
round hole
round hole
flat-tip screwdriver
flat-tip screwdriver
METHOD  3
If the mother board starts but the system software is abnormal:
Plug in the power cord while pressing the [Z] button.
Note: This method is same as “CD Start Mode” of test modes. Load the 
start disc and close the disc tray, and if the start disc is not recog-
nized, start the CD as usual.
; botton
power cord
NAS-S55HDE/SS-S55HDE
7
DISCHARGE  PROCESSING
1.  Switching power block on primary side of main board
 
Though high voltage of 280V is applied to the electrolytic capacitor (C205), in about 3 seconds after the AC cord was unplugged, the 
voltage will lower to 3 to 4V.
 
However, in the case of standalone main board, the discharge time will be long because of small load.
 
The voltage at this time is about 290V.
 
The voltage becomes half in about 20 seconds after the AC cord was unplugged. After that, in about 5 seconds, the voltage will lower 
to about 3V rapidly.
 
Then, the discharge slows and accordingly the forced discharge processing is necessary.
•  Forced discharge processing method
  Connect a resistor such as 100Ω 3W to the terminals of C205 and execute the discharge processing. (Discharge for about 10 sec-
onds)
Note: The potential of about 145V exists across aluminum case of C205. You could get an electric shock if you touch the aluminum case of C205.
2.  Power block on secondary side of main board
 
In about 3 seconds after the AC cord was unplugged, almost all potentials will lower to below 3V, but after that the discharge slows and 
accordingly the forced discharge processing is necessary.
•  Forced discharge processing method
  Connect a resistor such as 100Ω 3W to the terminals of C308 and C310, and execute the discharge processing. (Discharge for about 
5 seconds)
 
For electrolytic capacitors other than C205, 308 and 310, the discharge processing is executed simultaneously with the above discharge 
processing, and therefore the forced discharge processing is not necessary.
C308
100
Ω/3W
100
Ω/3W
100
Ω/3W
C310
C205
– MAIN Board (pattern Side) –
NAS-S55HDE/SS-S55HDE
8
IDE cable
CD-ROM drive
Fig. 1
Fig. 2
IDE cable
IDE cable
DAB assy
clamp
clamp
CD-ROM drive
CD-ROM drive
(AEP model)
(UK model)
FOLD  METHOD  OF  IDE  CABLE
Note: This illustration sees the CD-ROM drive from the back.
1.  Fold as the doted IDE cable then fold up as arrow direction in Fig.1.
2.  Fold up again as arrow direction in Fig.2.
IDE  CABLE SETTING
Note: This illustration sees the CD-ROM drive from the back.
Please fi x IDE cable with clamp as shown in the fi gure. 
Because there is difference in a fi xation method of IDE cable of AEP and UK MODEL.
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