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Technical Specifications EN 2 VAE8015 / 8020 1.
1. Technical Specifications
VAE8010 functionality:
- Loading of 8 cm and 12 cm discs by a motorized tray
Disc type recognition and in case of a DVD+RW disc laser
power calibration
Servo control for disc rotation, sledge movements, tilt,
focus and actuator position
EFM+ encoding / decoding for DVD, and EFM decoding for
CD
Writes and read DVD+RW discs and reads DVD, CD and
CD-R/RW discs
Linking control, header insertion and sector number
updating at record
Interfacing to the MPEG back-end (S2B) for control and
(I2S and V4) for data
The back-end has to provide MPEG data processing, data
buffering, construction
of logical format for Lead-in, Data area and Lead-out part
of the DVD+RW dis
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Safety Instructions, Warnings and Notes EN 3 VAE8015 / 8020 2.
2. Safety Instructions, Warnings and Notes
2.1 Safety Instructions
2.1.1 General Safety
Safety regulations require that during a repair:
Connect the unit to the mains via an isolation transformer.
Replace safety components, indicated by the symbol ď¨,
only by components identical to the original ones. Any
other component substitution (other than original type) may
increase risk of fire or electrical shock hazard.
Safety regulations require that after a repair, you must return
the unit in its original condition. Pay, in particular, attention to
the following points:
Route the wires/cables correctly, and fix them with the
mounted cable clamps.
Check the insulation of the mains lead for external
damage.
Check the electrical DC resistance between the mains plug
and the secondary side:
1. Unplug the mains cord, and connect a wire between
the two pins of the mains plug.
2. Set the mains switch to the 'on' position (keep the
mains cord unplugged!).
3. Measure the resistance value between the mains plug
and the front panel, controls, and chassis bottom.
4. Repair or correct unit when the resistance
measurement is less than 1 M-Ś.
5. Verify this, before you return the unit to the customer/
user (ref. UL-standard no. 1492).
6. Switch the unit off, and remove the wire between the
two pins of the mains plug.
2.1.2 Laser Safety
This unit employs a laser. Only qualified service personnel may
remove the cover, or attempt to service this device (due to
possible eye injury).
Laser Device Unit
Type : Semiconductor laser
GaAlAs
Wavelength : 650 nm (DVD)
: 780 nm (VCD/CD)
Output Power : 20 mW (DVD+RW
writing)
: 0.8 mW (DVD
reading)
: 0.3 mW (VCD/CD
reading)
Beam divergence : 60 degree
Figure 2-1 Class 1 Laser Product
Note: Use of controls or adjustments or performance of
procedure other than those specified herein, may result in
hazardous radiation exposure. Avoid direct exposure to beam.
2.2 Warnings
2.2.1 General
All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD, symbol ďˇ). Careless
handling during repair can reduce life drastically. Make
sure that, during repair, you are at the same potential as
the mass of the set by a wristband with resistance. Keep
components and tools at this same potential. Available
ESD protection equipment:
- Complete kit ESD3 (small tablemat, wristband,
connection box, extension cable and earth cable) 4822
310 10671.
- Wristband tester 4822 344 13999.
Be careful during measurements in the live voltage section.
The primary side of the power supply (pos. 1005), including
the heatsink, carries live mains voltage when you connect
the player to the mains (even when the player is 'off'!). It is
possible to touch copper tracks and/or components in this
unshielded primary area, when you service the player.
Service personnel must take precautions to prevent
touching this area or components in this area. A 'lightning
stroke' and a stripe-marked printing on the printed wiring
board, indicate the primary side of the power supply.
Never replace modules, or components, while the unit is
on.
2.2.2 Laser
The use of optical instruments with this product, will
increase eye hazard.
Only qualified service personnel may remove the cover or
attempt to service this device, due to possible eye injury.
Repair handling should take place as much as possible
with a disc loaded inside the player.
Text below is placed inside the unit, on the laser cover
shield:
Figure 2-2 Warning text
CAUTION VISIBLE AND INVISIBLE LASER RADIATI ON WHEN OPEN AVO ID EXPOSURE TO BEAM ADVARSEL SYNLIG OG USYNLIG LASERSTRĂ
LING VED Ă
BNING UNDGĂ
UDSĂTTELSE FOR STRĂ
LING
ADVARSEL SYNLIG OG USYNLIG LASERSTRĂ
LING NĂ
R DEKSEL Ă
PNES UNNGĂ
EKSPONERING FOR STRĂ
LEN
VARNI NG SYNLIG OCH OSYNLIG LASERSTRĂ
LNING NĂR DENNA DEL ĂR ĂPPNAD BETRAKTA EJ STRĂ
LEN
VARO ! AVATT AESSA OLET ALTTIINA NĂKYVĂL LE JA NĂKYMĂTT ĂMĂLLE LASER SĂTEILYLLE. ĂLĂ KAT SO SĂT EESEEN
VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEĂFFNET NICHT DEM STRAHL AUSSETSEN
DANGER VISIBLE AND INVISIBLE LASER RADIATI ON WHEN OPEN AVO ID DIRECT EXPOSURE TO BEAM
AT TENTION RAYO NNEMENT LASER VISIBLE ET INVISIBLE EN CAS D'OUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU
!
