Servicing Note - Sony HCD-DR4 Service Manual

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MODEL IDENTIFICATION
— BACK PANEL —
Parts No.
TE
L 13942296513
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
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 emission, ob-
serve 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 waveform is output four times.
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MODEL
DR4: E, AR model
DR4: TH model
DR4: SP model
DR4: MX model
DR4: AUS model
DR4: EA model
DR5: E, AR model
DR5: SP model
DR5: MX model
DR440: MX model
W300: US model
W300: CND model
W5000: US model
DR6: E, AR model
DR6: MX model
XB500: AEP, UK model
XB500: AEP model
• Abbreviation
CND : Canadian model
TH : Thailand model
SP : Singapore model
MX : Mexican model
AUS : Australian model
EA : Saudi Arabia model
AR : Argentine model
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PRODUCT COUNTRY
INDONESIA PRODUCT
THAI PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
THAI PRODUCT
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SECTION 1

SERVICING NOTE

About CD-TEXT display
This unit is provided with a simple CD-TEXT display function.
The CD-TEXT contents of 20 tracks are displayed on the fluores-
cent display tube.
Since the function is simple, some special characters may not be
displayed, or may be displayed as other characters.
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PARTS No.
4-214-786-0π
4-214-786-9π
4-214-786-1π
4-214-786-2π
4-214-786-3π
4-214-786-4π
4-214-786-5π
4-214-786-6π
4-214-786-7π
4-214-786-8π
4-214-787-4π
4-214-787-5π
4-214-787-6π
4-214-788-3π
4-214-788-5π
4-214-785-0π
4-214-785-2π
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m
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