1. Do not touch laser diode, actuator and their peripheries.
2. Do not use tester to check laser diode. (Laser diode can be
damaged easily.)
3. The use of soldering iron with anti-static feature is
recommended when providing short-circuit to laser diode or
when removing it.
4. Solder the land on flexible cable of optical pickup unit.
Step 1 Remove the floating rubbers.
Replacement of the Power Amplifier IC
Step 1 Follow the procedures in “Disassembly Procedure for
each major P.C.B. Checking” (Step 1 to Step 6).
Step 2 Remove the wires at CN302, CN303 and CN304 and
pull out the Main P.C.B..
Step 3 Remove 4 screws fixed to the Power Amplifier IC.
Caution
• When using the soldering iron without anti-static feature,
short circuit the flexible cable terminal with a clip before
short-circuiting the land.
• After intended repair is finished, remove the solder for
short-circuit of laser diode in a correct way following the
procedure described in this Manual.
Step 4 Unsolder the terminals of Power Amp IC and replace
the respective component.
9.8. Disassembling the Spindle Motor Unit
25
SA-DK20
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