Important For Laser Products - JVC KD-R491 Schematic Diagrams

1.7 Handling the traverse unit (optical pickup)
(1) Do not subject the traverse unit (optical pickup) to strong
shocks, as it is a sensitive, complex unit.
(2) Cut off the shorted part of the flexible cable using nippers,
etc. after replacing the optical pickup. For specific details,
refer to the replacement procedure in the text. Remove the
anti-static pin when replacing the traverse unit. Be careful
not to take too long a time when attaching it to the connec-
tor.
(3) Handle the flexible cable carefully as it may break when
subjected to strong force.
(4) I t is not possible to adjust the semi-fixed resistor that ad-
justs the laser power. Do not turn it.
1.9

Important for laser products

1.CLASS 1 LASER PRODUCT
2.CAUTION :
(For U.S.A.) Visible and/or invisible class II laser radiation
when open. Do not stare into beam.
(Others) Visible and/or invisible class 1M laser radiation
when open. Do not view directly with optical instruments.
3.CAUTION : Visible and/or invisible laser radiation when
open and inter lock failed or defeated. Avoid direct
exposure to beam.
4.CAUTION : This laser product uses visible and/or invisible
laser radiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are defeated. It is
dangerous to defeat the safety switches.
1.8 Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for the
pickup unit.
• Apply solder to the short land sections before the card wire is
disconnected from the connector on the servo board. (If the
card wire is disconnected without applying solder, the pickup
may be destroyed by static electricity.)
• In the assembly, be sure to remove solder from the short land
sections after connecting the card wire.
SOLDER
5.CAUTION : If safety switches malfunction, the laser is able
to function.
6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified here in may result in
hazardous radiation exposure.
!
(No.MA665<Rev.001>)5/33
Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.