Yamaha DVD-C961 Service Manual page 9

Dvd audio/video sa-cd player
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Preventive measure for laser diode from electrostatic breakdown
When replacing the MONO P.C.B. or DVD 5-disc changer module, solder between lands of the optical pick up P.C.B. to
protect the laser diode against electrostatic breakdown.
*
Use the phillips screwdriver to remove screws (2). (Fig. 2)
Clamper ass'y
Traverse unit
Notes
Use an anti-static soldering iron to short-circuit and
unshort-circuit laser diode.
After you have finished repairing, remove the
solder from the short-circuit location.
When installing a new traverse unit, remove the
solder from the shorted point of P.C.B. using an
electrostatic shielding soldering iron.
1
2 *
Fig. 2
Optical pick up
Traverse unit
Solder
Fig. 3
How to manually open the tray ass'y
a. Move the slider in the direction indicated with a flatblade screwdriver until the tray is ejected.
b. Gently pull the tray ass'y out.
Tray ass'y
Bottom side
Flatblade screwdriver
Removal of tray ass'y
*
The tray ass'y cannot be supplied independently. The tray ass'y is contained in DVD 5-disc changer module and
supplied as a DVD 5-disc changer module.
a. Remove the top cover.
b. Open tray (see "How to manually open the tray
ass'y").
c. Remove screw (3).
d. Remove the tray ass'y.
• Precaution for installation of the tray ass'y.
On tray ass'y setting.
Check the direction of marking "
" on gear according
to this drawing.
Gear/L0
Front panel
Gear/L01
Marking
DVD-C961
Slider
Flatblade screwdriver
Fig. 4
Top cover
a.
3
Tray ass'y
b. c.
Fig. 5
9

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