Sony SCD-555ES Service Manual ▷ View online
3
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.
SECTION 1
SERVICING NOTES (1)
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
HOW TO OPEN THE DISC TABLE WHEN POWER SWITCH TURNS OFF
disc table
loading panel ass’y
tapering driver
cover (CAM)
2
Draw out the loading panel ass’y
in the direction of arrow
in the direction of arrow
B
.
1
Insert a tapering driver in the hole
at the bottom of the unit,
turn the cover (CAM) fully in the
direction of arrow
at the bottom of the unit,
turn the cover (CAM) fully in the
direction of arrow
A
.
B
A
4
Note:
Follow the disassembly procedure in the numerical order given.
AUDIO/POWER BOARDS AND RF BOARD SERVICE POSITION
– BOTTOM VIEW –
AUDIO board
POWER board
INSTALLATION TWO WIRES (FLAT TYPE) (25/35 CORE)
Note: When the wire (flat type) (35 core) is disconnected
from the RF board, then it is again connected,
disconnect the wire (flat type) (25 core) once,
and reconnect the wire (flat type) (35 core) first.
disconnect the wire (flat type) (25 core) once,
and reconnect the wire (flat type) (35 core) first.
wire (flat type) (35 core)
wire (flat type) (25 core)
RF board
1
Remove the case.
2
Turn over the set.
4
two bottom plates
3
four screws (3
×
8)
3
eight screws (3
×
8)
5
OPTICAL PICK-UP SERVICE POSITION
Place the insulator on the MAIN board, then install the base unit (DVBU4) on it as shown in the figure.
MAIN BOARD SERVICE POSITION
In checking the MAIN board, prepare jig (extension cable J-2501-155-A: 1.00 mm Pitch, 9 cores, Length 300 mm).
Note:
Be sure to ground the MAIN board with a lead wire when checking it.
base unit
(DVBU4)
(DVBU4)
MAIN board
insulator
lead wire
MAIN board
AUDIO board
connect jig (extension cable
J-2501-155-A) to the MAIN
board (CN902) and AUDIO
board (CN308).
J-2501-155-A) to the MAIN
board (CN902) and AUDIO
board (CN308).
6
SECTION 2
GENERAL
This section is extracted from
instruction manual.
instruction manual.
1
POWER switch (11)
Press to turn on/off the player.
Press to turn on/off the player.
2
Remote sensor
(4)
3
Disc tray (11)
Press A OPEN/CLOSE to open/
close the disc tray.
Press A OPEN/CLOSE to open/
close the disc tray.
4 A
OPEN/CLOSE button (11)
Press to open/close the disc tray.
5 x
button (12)
Press to stop play.
6 X
button (12)
Press to pause play.
X
indicator
Lights up during pause.
7 N
button (11)
Press to start play.
N
indicator
Lights up during playback.
Front Panel Parts
Descriptions
Descriptions
8 l
AMSL dial (AMS:
Automatic Music Senser) (11)
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.
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.
9
Display window (12)
Shows various information.
Shows various information.
0
SACD/CD button (with an LED)
(11)
Each time you press the button
while the Hybrid disc (page 11) is
loaded, the layer changes between
the HD layer (the LED turns on) and
CD layer (the LED turns off).
(11)
Each time you press the button
while the Hybrid disc (page 11) is
loaded, the layer changes between
the HD layer (the LED turns on) and
CD layer (the LED turns off).
qa
DIGITAL OUT button (with an LED)
(5)
Press when a component is
connected to the DIGITAL (CD)
OUT connectors. Each time you
(5)
Press when a component is
connected to the DIGITAL (CD)
OUT connectors. Each time you
POWER
PHONES
PHONE LEVEL
MIN
MAX
TIME/TEXT
SACD/CD
OPEN/CLOSE
AMS
PUSH ENTER
DIGITAL OUT
FILTER
press the button, the DIGITAL OUT
mode changes between ON (the
digital signals can be output/the
LED turns on) and OFF (the digital
signals cannot be output/the LED
turns off). The digital signal can be
output only when you play a CD.
mode changes between ON (the
digital signals can be output/the
LED turns on) and OFF (the digital
signals cannot be output/the LED
turns off). The digital signal can be
output only when you play a CD.
qs
FILTER button (18)
Press to select a digital filter type
when playing a CD.
Press to select a digital filter type
when playing a CD.
qd
TIME/TEXT button (12)
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.
qf
PHONE LEVEL
Adjust the headphones volume.
Adjust the headphones volume.
qg
PHONES
Connect the headphones.
Connect the headphones.
Rear Panel Parts Descriptions
COAXIAL
OUT
OPTICAL
DIGITAL (CD)
AC IN
R
OUT
L
ANALOG
1
ANALOG OUT jacks (5)
Connect to an audio component using the audio
connecting cord.
Connect to an audio component using the audio
connecting cord.
2
DIGITAL (CD) OUT COAXIAL connector (5)
Connect to an audio component using the coaxial
digital cable.
Connect to an audio component using the coaxial
digital cable.
3
DIGITAL (CD) OUT OPTICAL connector (5)
Connect to an audio component using an optical
digital cable.
Connect to an audio component using an optical
digital cable.
4
AC IN terminal (5)
Connect the mains lead.
Connect the mains lead.
Note
Only the audio signals of the CD can be output from the
DIGITAL (CD) OUT connectors shown in 2 and 3. Those of
the Super Audio CD cannot be output through DIGITAL (CD)
OUT connectors.
DIGITAL (CD) OUT connectors shown in 2 and 3. Those of
the Super Audio CD cannot be output through DIGITAL (CD)
OUT connectors.