SERVICING NOTES
DISC MAGAZINE GETTING OUT PROCEDURE
NOTES ON HANDLING THE OPTICAL PICK-
ON THE POWER SUPPLY IS OFF
UP BLOCK OR BASE UNIT
Remove the CASE (LOWER. T) beforehand
The laser diode in the optical pick-up block may suffer electro-
static breakdown because of the potential difference generated by
1) Press the lever (ML.S) assy in the dirA. ection of arrow
the charged electrostatic load, etc. on clothing and the human body.
2) Removal the magazine assy.
During repair, pay attention to electrostatic breakdown and also
Note: Take out the magazine only when the tray is completely within the
use the procedure in the printed matter which is included in the
magazine. If the disk or tray is sticking out, turn on the power and
repair parts.
eject the magazine.
The flexible board is easily damaged and should be handled with
care.
Lever (ML.S)
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.
A
US/Canadian model:
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical
pick-up block.
Magazine assy
OPTICAL
PICK-UP
BLOCK
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
Flexible Circuit Board Repairing
Y Keep the temperature of the soldering iron around 270 uC dur-
SEMI-FIXEDing repairing.
RESISTORY Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
Y Be careful not to apply force on the conductor when soldering
or unsoldering.
AEP/UK model:
Notes on chip component replacement
Y Never reuse a disconnected chip component.
Y Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
� LA S?CURIT?!
LES COMPOSANTS IDENTIFI?S PAR UNE MARQUE 0
SUR LES DIAGRAMMES SCH?MATIQUES ET LA LISTE
DES PIéCES SONT CRITIQUES POUR LA S?CURIT?
When replacing the chassis (U.S) sub assy of mechanism deckDE FONCTIONNEMENT. NE REMPLACER CES COM-
which have the OCAUTION LABEL� attached, please be sure toPOSANTS QUE PAR DES PIéCES SONY DONT LES
put a new CAUTION LABEL (3-223-913-11) to the chassis (UNUM?ROS SONT DONN?S D.S)ANS CE MANUEL OU
sub assy.DANS LES SUPPL?MENTS PUBLI?S PAR SONY.
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ACEC
