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Replacing the Lid
• Remove the top cover (see "removing the frame").
• Remove the retainer from the valve switch and damper.
• Press the detent tab and slide the damper shaft until a hinge
point is exposed.
• The tipping can be done with the axle from the top removed
when in the open position.
Servicing the RAFOC (Radial Focus) unit
• Open the frame.
• Remove the two flex boards from the connectors on the
preamplifier board.
• The unit can be removed after the two mounting fixing screws
M3x20 have been removed (see Fig.).
• The unit consists of 5 service parts:
2 flex boards, radial motor pos. 52, light pen pos. 57
and focus unit pos. 58.
• If the focus unit needs to be replaced screw M2.5x10 must be
loosened and screw M2x5 must be removed.
• It is not necessary to remove the RAFOC unit from the device in
order to replace the light pen.
The light pen can be replaced after loosening screw M2.5x10.
When mounting the light pen, it must be pushed into the arm as
far as possible and turned clockwise against the stop.
CD mechanism with identification A03
Servicing the RAFOC (Radial Focus) unit
• Open the frame.
• Remove the two flex boards from the connectors on the
preamplifier board.
• The unit can be removed after removing the two fixing screws
M3x20.
• The unit consists of 4 service parts:
2 flex boards, the radial motor focus unit and the light pen.
• It is not necessary to remove the RAFOC unit from the device to
replace the light pen.
The light pen can be removed by turning it counterclockwise
with a 12 mm wrench and then sliding it out of the holder.
When mounting, the light pen must be pushed into the arm as
far as possible and turned clockwise against the stop.
CAUTION: To prevent settings from being changed, DO NOT
loosen ANY SCREWS other than those mentioned
above.
THE LASER MECHANISM IS MUCH MORE SENSITIVE TO
STATIC CHARGE THAN A MOS IC.
CARELESS HANDLING DURING SERVICING CAN
DRASTICALLY REDUCE THE LIFETIME OF THE LASER.
THEREFORE, MAKE SURE THAT DURING THE SERVICE,
THE TOOLS AND YOURSELF HAVE THE SAME POTENTIAL
AS THE MECHANISM.
When one of the parts of the RAFOC unit is replaced, the angle
adjustment must be checked.
Remark:
The laser mechanism can contain both a laser diode that operates
at a positive supply voltage and a laser diode that operates at a
negative voltage.
THEY MUST NOT BE INTERCHANGED
When a laser diode is used which operates on a positive supply
voltage, the preamplifier board is provided with service printing
with the designation POS.VOLT.SH.
When using a laser diode that operates on a negative supply
voltage, the preamplifier board is provided with the service
printing with the designation NEG.VOLT PH.
Both the light pen and the preamplifier board are supplied for
service:
For negative supply voltage:
Light pen
Preamplifier Board (NEG.VOLT.PH.)
For positive supply voltage:
Light pen
Preamplifier Board (POS.VOLT.SH.)
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