Philips SDV434/19, Service Manual

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Warnings
1.General
. All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD). Careless handing 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:
1) Complete kit ESD3 (small tablemat, wristband,
connection box, extension cable and earth cable) 4822
310 10671.
2) Wristband tester 4822 344 13999.
. Be careful during measurements in the live voltage section.
The primary side of the power supply , including the heat
sink, 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 “lighting 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. 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 handing 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:
Notes: Manufactured under licence from Dolby Laboratories.
The double-D symbol is trademarks of Dolby Laboratories,
Inc. All rights reserved.
CAUTION: VISIBLE AND INVISIBLE LASER RADIATION
WHEN OPEN, AVOID EXPOSURE TO BEAM.
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