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Ver 1.1 2000. 08
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 electro-
static breakdown because of the potential difference generated by
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown 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.
Laser Diode Properties
• Material: GaAlAs
• Wavelength: 780 nm
• Emission Duration: continuous
• Laser Output Power: less than 44.6 µW*
* This output is the value measured at a distance of 200 mm
from the objective lens surface on the 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.
US/Canadian model:
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
TE
L 13942296513
Never turn the semi-fixed resistor located at the side of optical
pick-up block.
AEP/UK model:
www
.
When replacing the chassis (U.S) sub assy of mechanism deck
which have the "CAUTION LABEL" attached, please be sure to
put a new CAUTION LABEL (3-223-913-11) to the chassis (U.S)
sub assy.
http://www.xiaoyu163.com

SERVICING NOTES

OPTICAL
PICK-UP
BLOCK
SEMI-FIXED
RESISTOR
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http://www.xiaoyu163.com
SECTION 1
2 9
8
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
DISC MAGAZINE GETTING OUT PROCEDURE
ON THE POWER SUPPLY IS OFF
Remove the COVER (LOWER.T) ass'y beforehand
1) Press the lever (ML.S) to arrow direction.
2) Removal the magazine assy.
Note: Take out the magazine only when the tray is completely within the
magazine. If the disk or tray is sticking out, turn on the power and
eject the magazine.
Q Q
3
6 7
1 3
1 5
Magazine ass'y
co
.
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
Lever (ML.S)
9 9
3

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