Servicing Note - Sony HCD-SR4W Service Manual

HCD-SR4W
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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,
observe from more than 30 cm away from the objective lens.
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SERVICING NOTE

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MODEL IDENTIFICATION
— BACK PANEL —
Part No.
Model Name
EA
HK, SP, TW, KR, CH
AEP, UK
RU
MX, AUS, E41
• Abbreviation
AUS : Australian model
CH : Chinese model
E41 : 230 V AC area in E model
EA : Saudi Arabia model
HK : Hong Kong model
KR : Korean model
MX : Mexican model
RU : Russian model
SP : Singapore model
TW : Taiwan model
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Part No.
2-109-513-0[]
2-109-513-1[]
4-253-896-7[]
4-253-896-8[]
4-253-896-9[]
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