Servicing Notes - Sony HCD-GPZ6 Service Manual

HCD-GPZ6/GPZ7
Ver. 1.1
QQ
3 7 63 1515 0
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.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
TE
L 13942296513
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
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SECTION 1

SERVICING NOTES

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• MODEL IDENTIFICATION
– Rear Panel –
PART No.
MODEL
GPZ7: AEP, EE, RU 2-591-366-0[]
Q Q
3 6 7 1 3 1 5
GPZ7: AR 2-591-366-2[]
GPZ6: UK 2-591-366-3[]
GPZ6: AUS 2-591-366-4[]
GPZ6: KR 2-591-366-5[]
GPZ6: AR 2-591-366-6[]
GPZ7: E 2-591-367-0[]
GPZ7: E51 2-591-367-1[]
GPZ6: SP 2-591-367-3[]
GPZ7: MX 2-591-367-4[]
• Abbreviation
AR : Argentina model
AUS : Australian model
E51 : Chilean and Peruvian models
EE : East European model
KR : Korean model
MX : Mexican model
RU : Russian model
SP : Singapore model
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