Read Sony ICF-CD73 / ICF-CD73V Service Manual online
4
ICF-CD73/CD73V
COLOR VARIATION
MODEL
Destination
Window Color
Cabinet Color
Canadian
CLEAR BLUE
WHITE
ICF-CD73
Italian
CLEAR YELLOW
BEIGE
UK
US (ORIGINAL)
CLEAR BLUE
WHITE
ICF-CD73V
US (LIV)
CLEAR BLUE
WHITE
CLEAR YELLOW
BEIGE
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
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the S701. (push switch type)
The following checking method for the laser diode is operable.
diode is prohibited unless the upper lid is closed while turning ON
the S701. (push switch type)
The following checking method for the laser diode is operable.
• Method
Emission of the laser diode is visually checked.
1. Open the lid.
2. Push the S551 as shown in Fig.1.
3. Press the
2. Push the S551 as shown in Fig.1.
3. Press the
[CD ]
button.
4. Check the object lens for confirming normal emission of the
laser diode. If not emitting, there is a trouble in the automatic
power control circuit or the optical pick-up.
In this operation, the object lens will move up and down 2
times along with inward motion for the focus search.
power control circuit or the optical pick-up.
In this operation, the object lens will move up and down 2
times along with inward motion for the focus search.
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
S551
Fig.1 Method to push the S551
NX
ORIGINAL MODEL
WINDOW Front View
LIV MODEL
DISCRIMINATION OF ORIGINAL AND LIV MODEL
There are two types of ICF-CD73V.
Refer to following.
Refer to following.
Ver. 1.3
NOTES ON EXCHANGING THE FLEXIBLE FLAT
CABLE (13 CORE)
CABLE (13 CORE)
When the flexible flat cable which has connected the LCD board
(CNP402) and CD board (CNP702) is exchanged, please attach to
a set according to the following after bending.
(CNP402) and CD board (CNP702) is exchanged, please attach to
a set according to the following after bending.
1
Turn the character side up and bend in the direction
(back side) of A from an end in the position of about 9 mm.
(back side) of A from an end in the position of about 9 mm.
back side
character side
character side
character side
2
Bend in the direction of B from an end in the position
of about 70 mm.
of about 70 mm.
3
Attach in a set.
LCD board
(CNP402)
(CNP402)
CD board
(CNP702)
(CNP702)
±
9 mm
±
70 mm
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